US20080294083A1 - Orthopedic device - Google Patents
Orthopedic device Download PDFInfo
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- US20080294083A1 US20080294083A1 US12/153,390 US15339008A US2008294083A1 US 20080294083 A1 US20080294083 A1 US 20080294083A1 US 15339008 A US15339008 A US 15339008A US 2008294083 A1 US2008294083 A1 US 2008294083A1
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- Prior art keywords
- splint
- dorsal
- strap
- ankle
- toe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0104—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations without articulation
- A61F5/0111—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations without articulation for the feet or ankles
Definitions
- the present invention relates generally to the field of prosthetic and orthopedic devices and more particularly to a dorsal splint for use at night to treat plantar fasciitis and other foot and heel related disorders.
- Plantar fasciitis is a common problem among people who are active in sports, particularly runners. It is also a prevalent problem for overweight/obese patients and people who remain standing for long periods of time. It is an inflammation of the plantar fascia, the thick tendon on the bottom of the foot which is attached to the heel bone (the calcaneus) and fans forwardly to the toes. The plantar fascia maintains the arch of the foot and is placed in tension during walking and running. Any sport where the foot lands repeatedly, such as running or jogging, can overload the plantar fascia and produce an inflammation, usually at the point where the fascia is attached to the heel bone. The reaction of the heel bone to the inflammation is often to produce spike-like projections of new bone called heel spurs. Both the initial inflammation of the fascia and walking on the heel spurs can cause sharp pain.
- a broad range of treatments are prescribed for plantar fasciitis, depending upon the severity of the injury and length of time the condition has existed.
- treatments are rest, ice, anti-inflammatory/analgesic medication, heel pads, taping, physical therapy and surgery.
- Another form of treatment for the condition is the wearing of a splint or orthosis which maintains the foot in a slightly dorsiflexed condition, so that the plantar fascia is maintained in a neutral (90 degree) or a stretched (below 90 degree) position.
- a splint is prescribed for wear at night while the patient is in bed. This maintains a slight stretch of the fascia when it would otherwise be allowed to shorten while the leg and foot muscles are relaxed during sleep.
- a first type of a night splint consists of a thick, rigid plastic footbed and a pair of rigid plastic bars extending vertically upward on either side of the footbed.
- a flexible fabric sheath for encircling the foot and leg is also attached to the foot bed, the sheath being open along its front so that the patient may put on the entire appliance like a boot.
- the footbed underlies the entirety of the patient's foot, and the bars pass along either side of the ankle and lower leg. Straps are attached to the footbed and the bars, and are fastened around the foot and lower leg respectively to secure the splint in position and so maintain the patient's foot in the proper, slightly flexed orientation.
- Such splints are quite heavy and bulky, and it is common for patients to complain that they are uncomfortable and interfere with sleep.
- a second type of a night splint is a generally L-shaped brace made of a relatively thin layer of molded plastic such as polypropylene.
- the forward-facing surface of the brace is substantially concave to fit around the rear and sides of the patient's calf, ankle and heel.
- the bottom portion of the “L” extends forwardly beneath the sole of the foot.
- These splints generally are lined with padding made from a foam or synthetic pile, and are held in place on the lower leg and foot by means of adjustable straps, typically secured with hook-and-pile fasteners. While such splints are less bulky than the first type of prior art splint, some patients still complain that they are uncomfortable, particularly when worn in bed.
- the rigid portion of the splint contacts the rear and sides of the heel, ankle and lower leg, and so comes between the patient and the bed mattress during most sleeping postures.
- the splints may be so uncomfortable that patients cannot get a normal night's rest or may discontinue use of the splint before it has achieved the desired therapeutic result.
- a third type of orthopedic device for the treatment of plantar fasciitis is known as a foot sling.
- the foot sling consists of a wide band of flexible, padded material which encircles the patient's lower leg just below the knee, and a flexible strap which passes beneath the ball of the patient's foot and is secured at its ends to the upper leg band on either side of the leg. The strap is tightened to pull upwardly on the foot and so maintain it in a dorsi-flexed position.
- the foot sling may be uncomfortable to some patient's since the upper leg band must be tight enough around the leg to prevent it from slipping downward when the strap is tightened.
- a fourth type of a night splint consists of a rigid plastic, generally “L” shaped brace configured to fit along the dorsal surfaces of the user's foot, ankle and lower leg (a “dorsal” splint).
- a cloth cover may be provided over each end of the “L” shape in order to provide some interface between the rigid brace and the user's skin, and straps that encircle the brace as well as the foot, ankle, and lower leg, may be connected to the cloth cover to tighten the brace in position. While this type of brace solves some of the problems associated with the previously discussed devices, there still exist issues of patient comfort, as well as the comfort of any person sharing a bed with the patient wearing such a brace.
- the brace In order for the brace to properly function, it must be substantially rigid, such that the extending portions of the brace will not closely conform to the user's foot, ankle, and lower leg. Thus the brace will not have a good and secure fit. Further, due to the typical injection molding formation of the brace, the edges of the brace may be sharp and cause irritation. The cloth covers do not provide adequate protection from such irritation, which is further exasperated by the loose fit of the brace, or if the edges are flexible enough to be bent, they may dig into the skin even more. These edges can cause irritation to both the user, and to any person sharing the bed with the user.
- a dorsal splint that reduces the irritation to a user due to bulky and heavy braces, loose fitting braces, and braces having edges that can cause points of irritation. Further, there is a need for a more comfortable, better fitting brace. Accordingly, a dorsal splint is provided that has a low profile, is less bulky and is lightweight, provides a good and comfortable fit, and solves other problems associated with previous splint designs.
- Exemplary embodiments of a dorsal splint are provided for treating plantar fasciitis that are lightweight, low profile, provide a better and more comfortable fit, and further reduce or eliminate irritation due to edges causing points of irritation.
- a dorsal splint includes a substantially rigid splint member having upper, intermediate, and lower portions shaped and configured to be worn on the dorsal aspects of the lower leg, including the shin, dorsal surface of the ankle, or “dorsum,” and the dorsal surface of the foot.
- a flexible edge overmold made from a compliant or flexible material is provided to encase at least an outer edge of the upper portion, and may be provided to encase the edges of the intermediate and lower portions in any desired configuration.
- the flexible edge overmold reduces irritation caused by hard or sharp edges of the substantially rigid splint member and further allows the substantially rigid splint member to at least partially conform to the dorsal aspects of the lower leg.
- a flexible inner member may be utilized in conjunction with the substantially rigid splint member in order to provide a compliant interface between the dorsal splint and the dorsal aspects of the lower leg.
- the flexible inner member is removably attached to the upper, intermediate and lower portions and has first and second surfaces, and proximal and distal ends.
- the second surface of the flexible inner member defines at least one padded portion and the first surface of the flexible inner member has a hook receiving material.
- a pouch having a proximal surface including hook receiving material is formed along the first surface along the distal end of the flexible inner member such that the lower portion is received within the pouch.
- the posterior surfaces of the intermediate and upper members carry hook material for engaging the hook receiving material of the first surface of the flexible inner member.
- Suitable strap assemblies may be utilized to retain the dorsal splint on the lower leg.
- the dorsal splint includes a strap in the form of a “FIG. 8 ,” such that a single strap defines a loop for tightening around the foot.
- the “FIG. 8 ” strap includes crossing over itself on a proximal surface of the intermediate portion of the substantially rigid splint member, and forming another loop for tightening around the calf.
- the strap configuration allows for the pulling on one end of the strap to cause both loops to tighten simultaneously.
- the dorsal splint includes at least one slot formed in each of first and second wings of the upper portion for receiving respective ends of a strap, wherein the flexible edge overmold encompasses the slots.
- the distal end of the flexible inner member includes an elastic fabric member secured to a first and second edge along the distal end of the inner flexible member.
- a distal strap is secured to the distal surface of the elastic fabric member.
- a proximal strap removably engages the slots in the upper portion and each of the proximal and distal straps may carry both hook material and hook receiving material.
- the flexible inner member has first, intermediate, and second layers, wherein the first layer defines a hook receiving material; the intermediate layer is a foam layer; and the second layer encases the intermediate foam layer.
- the flexible edge overmold encases an outer edge of each of the upper, intermediate, and lower portions. At least one slot is formed in first and second wings of the upper portion for receiving respective ends of a strap, and at least one slot is formed in first and second sides of the lower portion for receiving respective ends of a strap.
- the flexible edge overmold also encompasses the slots.
- the lower portion also includes first and second wings having slots formed therein for receiving respective ends of a strap. Similar to the previous variation, the flexible edge overmold encompasses the slots.
- the distal strap includes a first thickness in a middle portion, and a second thickness near first and second ends, where the first thickness is larger than the second thickness.
- the straps are pulled from two sides and thus, the dorsal splint will be properly positioned in the middle of the limb, as opposed to tilting to one side or the other when being pulled from a single side only and wrapped around the limb.
- an inflatable bladder is positioned between the proximal surface of the distal strap and the plantar surface of a foot.
- the bladder may be used to adjust the amount, or angle, of dorsiflexion provided by the splint.
- a pad is positioned between the proximal surface of the distal strap and the plantar surface of a foot.
- the pad may be any suitable pad, such as a gel pad, and may provide therapeutic relief, such as heating or cooling. Different sized pads may be interchangeably provided to adjust the amount, or angle, of dorsiflexion provided by the splint.
- each of the proximal and distal straps includes a first layer of flexible material having a first width and a second layer of non-stretch material having a second width that is less than the first width. In this manner a more comfortably fitting, flexible edge strap is provided.
- each of the proximal and distal straps has a first layer of flexible material having a first width and first and second strips of non-stretch material having a second width that is less than the first width.
- the first and second strips of non-stretch material are positioned along first and second edges of the straps. In this manner the length of the strap is fixed, however the flexible layer may stretch and conform more closely to provide a more comfortable fit.
- Each of the proximal and distal straps may also have third and fourth strips of non-stretch material positioned along respective first and second ends of the straps so that the ends of the straps may more easily pass through slots in the dorsal splint.
- each of the proximal and distal straps includes first, intermediate, and second layers, wherein the first and second layers are formed from hook receiving material and are positioned on respective sides of the intermediate layer, and the intermediate layer is a foam layer to provide for a more comfortable, form fitting strap.
- the dorsal splint in another embodiment, includes an upper portion shaped and configured to engage the dorsal aspect of the leg.
- First and second living hinges are positioned along first and second sides of the upper portion from which first and second wing portions extend.
- the lower portion also includes first and second living hinges positioned along first and second sides of the lower portion from which first and second wing portions extend. The living hinges allow the wing portions to flex about the hinges in order to better conform to the leg of the user. When the dorsal splint is removed from the leg, the living hinges cause, the wing portions to spring back to their unflexed positions.
- the dorsal splint has a flexible inner member to which the overmold and the substantially rigid splint member are integrally molded.
- the dorsal splint includes an upper portion and a lower portion.
- the upper and lower portions are rotatably connected via an intermediate portion connecting the upper and lower portions in a rotatable manner.
- the dorsal splint has a flexible member having at least one longitudinal pocket for receiving a substantially rigid splint member.
- the dorsal splint includes a substantially rigid splint member.
- Compliant or flexible upper and lower wing portions are attached to the substantially rigid splint member at upper and intermediate or lower portions.
- the upper and lower wing portions provide a comfortable, conforming fit, while the substantially rigid splint member defines the structural support for the lower leg.
- the dorsal splint comprises a flexible member encasing first and second substantially rigid splint members.
- Each substantially rigid splint member has an upper portion being shaped and configured to engage the dorsal aspect of the leg and an intermediate portion being shaped and configured to engage the dorsum.
- the flexible member further includes at least one pocket for receiving a substantially rigid lower splint member being shaped and configured to engage the dorsal surface of the foot.
- the dorsal splint has a flexible member encasing first and second substantially rigid splint members.
- the flexible member further defines at least one pocket located between the first and second splint members for receiving a substantially rigid third splint member.
- FIG. 1A is a side perspective view of an embodiment of a dorsal splint.
- FIG. 1B is a rear view of the embodiment of a dorsal splint shown in FIG. 1A .
- FIG. 1C is a front view of an inner flexible member for use with the embodiment of a dorsal splint shown in FIG. 1A .
- FIG. 1D is a front view of the embodiment of a dorsal splint shown in FIG. 1A including the inner flexible member shown in FIG. 1C .
- FIG. 1E is a front view of the embodiment of a dorsal splint, similar to that shown in FIG. 1D , and including a proximal strap.
- FIG. 2 is a perspective view of a dorsal splint according to another embodiment.
- FIG. 2A is a perspective view of a dorsal splint according to an alternate configuration.
- FIGS. 3A-D are various views of embodiments of a “FIG. 8 ” strap in use with an embodiment of a dorsal night splint.
- FIGS. 4A-E are various perspective, side, and rear views of another embodiment of a dorsal splint.
- FIG. 5 is a side view of another embodiment of a dorsal night splint.
- FIGS. 6A-B are various front views of another embodiment of a dorsal night splint.
- FIG. 7 is a front perspective view of another embodiment of a dorsal night splint.
- FIGS. 8A-C are various front perspective views of another embodiment of a dorsal night splint.
- FIG. 9 is a bottom perspective view of an embodiment of a strap for use with various embodiments of a dorsal splint.
- FIGS. 10A-B are various perspective and front views of another embodiment of a dorsal splint.
- FIG. 11 is a front perspective view of another embodiment of a dorsal splint.
- FIG. 12 is a front view of another embodiment of a dorsal splint.
- FIGS. 13A-C are various front and side perspective views of another embodiment of a dorsal splint.
- FIG. 14 is a bottom perspective view of another embodiment of a dorsal splint.
- FIG. 15 is a bottom perspective view of another embodiment of a dorsal splint.
- FIG. 16 is a bottom perspective view of another embodiment of a dorsal splint.
- FIGS. 17A-C are various views of another embodiment of a dorsal splint and an associated strap.
- FIG. 18 is a side view of an embodiment of a strap for use with various embodiments of a dorsal splint.
- FIG. 19 is a bottom perspective view of an embodiment of a strap for use with various embodiments of a dorsal splint.
- FIGS. 20A-C are various views of an alternate strap configuration for use with various embodiments of a dorsal splint.
- FIG. 21A is a perspective view of another embodiment of a splint member.
- FIG. 21B is sectional view taken along line XXIB-XXIB from FIG. 21A .
- FIG. 21C is a posterior view of the embodiment shown in FIG. 21A .
- FIG. 21D is a schematic view showing different shape configurations of FIG. 21A .
- FIG. 22A is an elevational view showing another embodiment of a splint member having a strapping system.
- FIG. 22B is a plan view showing the embodiment of FIG. 22A .
- FIG. 22C is a plan view showing the embodiment of FIG. 22A in an open configuration.
- FIG. 22D is a detailed schematic view showing the toe portion of FIG. 22C in an open configuration.
- the dorsal splint of this disclosure is designed for use by patients while sleeping at night.
- the dorsal splint is not limited to being worn at night, but may be worn at any suitable time. For example, any time that a user is sitting down, or otherwise is placing no pressure on the foot, the dorsal splint may be worn.
- the dorsal splint is configured and arranged to be worn on either one of the left or right feet, ankles, and lower legs. Accordingly, the description will refrain from describing the dorsal splint with respect to left and right sides, or even lateral and medial sides, since a single dorsal splint may be worn on either the right or left foot.
- the dorsal splint is to be worn against the dorsal, or top, surfaces of the foot, ankle, and the foreleg, or shin. Any suitable retention mechanism may be used to retain the dorsal splint in proper position on the user.
- the dorsal splint is configured to place the foot in dorsiflexion while it is being used by a patient.
- the plantar fascia is maintained in a dorsi-flexed position in circumstances where the foot might otherwise naturally tend towards plantarflexion. Accordingly, pain and tearing of the plantar fascia are avoided in situations where the shock of placing the foot in dorsiflexion after prolonged periods of plantarflexion, such as while standing up after a night of sleeping, would otherwise occur.
- dorsal splints While not solely limited to use during sleeping, the majority of dorsal splints are worn to bed during the night. Since dorsal splints must be substantially rigid in order to maintain the foot in dorsiflexion, the use of a dorsal splint for prolonged periods of time, for example an eight hour sleeping period, can cause discomfort to the wearer. Additionally, a sleeping partner of the user may also have contact with the dorsal splint, and may also suffer discomfort from rigid surfaces and edges.
- a number of embodiments of a dorsal splint are disclosed herein to provide an improved dorsal splint that alleviates or eliminates the above described, and other, shortcomings of the previous splints for treating plantar fascia. These embodiments include improvements in the structure of a dorsal splint and some of the different types of retention mechanisms that may used therewith.
- the term “dorsal” has its ordinary meaning and as used herein refers to the top surfaces of the foot, ankle and foreleg or shin.
- the term “plantar” has its ordinary meaning and refers to a bottom surface, such as the bottom of a foot.
- proximal has its ordinary meaning and refers to a location that is closer to the heart than another location.
- distal has its ordinary meaning and refers to a location that is further from the heart than another location.
- the term “posterior” also has its ordinary meaning and refers to a location that is behind or to the rear of another location.
- the term “anterior” has its ordinary meaning and refers to a location that is ahead of or to the front of another location.
- FIG. 1A One embodiment of a substantially rigid splint member 110 of a dorsal splint 100 is shown in FIG. 1A .
- the substantially rigid splint member 110 is shown in a stand-alone manner for ease of illustration. Additionally, the substantially rigid splint member 110 illustrated in FIG. 1A may be used in any number of configurations and embodiments utilizing different padding or retention mechanisms.
- the splint 100 has a flexible edge overmold 138 and living hinges 136 to reduce irritation points and allow the splint 100 to better conform to the user's limb.
- the substantially rigid splint member 110 comprises three portions, an upper portion 112 , an intermediate portion 118 , and a lower portion 124 .
- Each portion is shaped and configured to engage a respective portion of the wearer's body.
- the upper posterior surface 116 is generally concave in shape to accommodate the fore leg, or shin.
- the shape of the concavity may be uniform or non-uniform along the posterior surface 116 .
- the upper anterior surface 114 may have a contoured shape to match the shape of the upper posterior surface 116 .
- the upper portion 112 may have any suitable thickness in order to provide the appropriate rigidity and support to the dorsal splint 100 .
- the thickness may be uniform or non-uniform across the width, and along the length of the upper portion 112 .
- the upper portion 112 further has anterior 114 and posterior 116 surfaces shaped and configured to engage the dorsal aspect of the leg.
- the upper portion 112 further includes first and second wing portions 130 extending respectively from first and second sides of the upper portion 112 in order to extend the width of the upper portion 112 so that it may wrap around the dorsal surface of the foreleg.
- the intermediate portion 118 is integrally formed with the upper portion 112 and includes anterior 120 and posterior 122 surfaces shaped and configured to engage the dorsum.
- the intermediate portion 118 may be formed as a separate piece from the upper portion 112 .
- the distinct pieces may be connected to each other in any suitable manner, such as by welding or adhesives.
- the intermediate portion 118 is shaped and configured to engage the dorsal aspect of the user's ankle. Accordingly, like the upper portion 112 , the posterior surface 122 of the intermediate portion 118 has a substantially concave shape to accommodate the user's ankle. Similarly to the upper portion 112 , the shape of the concavity may be uniform or non-uniform.
- the width of the intermediate portion 118 may vary along its length in order to provide an appropriate curvature to accommodate the various protrusions of the ankle joint.
- the thickness of the intermediate portion 118 may also be uniform or non-uniform.
- the proximal end of the intermediate portion 118 is merged with the distal end up the upper portion 112 and provides a smooth transition such that a point of irritation is not created at the juncture.
- any appropriate surface treatment such as sanding, grinding, or polishing, may be utilized to provide a smooth transition.
- the lower portion 124 is integrally formed with the intermediate portion 118 in order to form a single substantially rigid splint member 110 .
- Proximal 126 and distal 128 surfaces are provided on the lower portion 124 .
- the lower portion 124 may be formed as a separate piece from the intermediate portion 118 .
- the distinct pieces may be connected to each other in any suitable manner, such as by welding or adhesives.
- the lower portion 124 is shaped and configured to engage the dorsal aspect of the user's foot.
- the distal surface 128 of the lower portion 124 has a substantially concave shape.
- a flared distal end portion is provided to avoid rigid corners that would dig into the flesh of the dorsal surface of the user's foot.
- the concavity and thickness of the lower portion 124 may be uniform or non-uniform.
- slots 134 for straps are also provided along either edge of the lower portion 124 .
- the slots 134 may have any suitable length in order to accommodate straps of different sizes. Such slots may also be used to reduce the weight of the substantially rigid splint member 110 , even if a strap is not used directly with the slots 134 of the lower portion 124 . Of course, if a strap is not to be used directly with slots in the lower portion 124 , the slots 134 in the lower portion 124 may not be provided.
- the straps are pulled from two sides and thus, the dorsal splint 100 will be properly positioned in the middle of the limb, as opposed to tilting to one side or the other when being pulled from a single side only and wrapped around the limb.
- the proximal end of the lower portion 124 is merged with the distal end of the intermediate portion 118 in order to provide a smooth transition between the two portions.
- the combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion may be in the range of 800 to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- the substantially rigid splint member 110 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters.
- the substantially rigid splint member 110 may be formed in any suitable manner, for example injection molding, casting, or curing.
- “living hinges” 136 are provided in the upper portion 112 between a main a section of the upper portion 112 and the upper wing portions 130 in order to provide flexibility to the wing portions 130 so that the splint 100 may better conform to the user's limb.
- the living hinge 136 is a thin section of material between the main section of the upper portion 112 and the upper wing portion 130 .
- the living hinge 136 has a thickness that is less than the thickness of the rest of the upper portion 112 or the upper wing portions 130 . Since the living hinge 136 has a smaller thickness than the upper portion 112 or the upper wing portions 130 , the wing portions 130 and the upper portion 112 are able to flex with respect to each other around the living hinge 136 .
- the wing portions 130 and the upper portion 112 flex to conform to the user's lower leg via a strap. Thus, a better fit is accomplished between the dorsal splint and the user's leg.
- the wing portions 130 return to their unflexed position due to the action of the living hinges 136 in a manner that will be understood by the skilled artisan.
- the specific construction of the living hinge 136 is dependent upon the desired amount of flexing, and the direction of flexing.
- the actual thickness and shape of the living hinge 136 is dependent upon the thickness of the upper portion 112 and upper wing portions 130 .
- the living hinge 136 may therefore be formed in any suitable shape, size and orientation, in order to provide the desired flexing characteristics.
- the living hinge 136 may be provided by a recessed line or groove along the posterior surface 116 of the upper portion 112 , and a protruding line or a recessed line or groove along the anterior surface 114 of the upper portion 112 .
- the length of the living hinge 136 may extend substantially along the entire upper portion 112 commensurate in length with the upper wing portions 130 .
- the length of the living hinge 136 may have any suitable length. The actual process of forming the living hinges 136 will be understood by a skilled artisan.
- the dorsal splint 100 When the dorsal splint 100 is in place on the user's leg, the upper portion 112 is retained in position against the leg, and the upper wing portions 130 are able to flex in order to more closely conform to the user's leg. In this manner, the dorsal splint 100 provides a better fit with the user's leg, and enables a more comfortable fit since the dorsal splint 100 more closely conforms to the shape of the user's leg.
- the living hinges 136 also aid in preventing the dorsal splint 100 from sliding off of the patient's limb, since the extended upper wing portions 130 that (compared to a single rigid piece) to better conform to the shape of the leg when there is ankle movement.
- a flexible edge overmold 138 is provided for encasing an outer edge of at least the upper portion 112 .
- the overmold 138 shown in FIG. 1A encases an outer edge of both the upper portion 112 and the intermediate portion 118 .
- the flexible edge overmold 138 may be formed from any suitable material, such as a flexible plastic. Exemplary materials include thermoset polymers, such as solid polyurethane, or thermoplastic elastomers.
- the thickness of the overmold 138 may be the same as or smaller than the upper portion 112 or any other portion that the overmold 138 encases the edge of.
- the width of the overmold 138 may be any suitable width so as to provide a compliant interface between the substantially rigid splint member 110 and the user's skin.
- slots 134 for receiving straps are provided in the wing portions 130 of the upper portion 112 , and along the edges of the lower portion 124 .
- the overmold 138 encompasses the slots 134 in the wing portions 130 of the upper portion 112 .
- Lines of greater thickness may be provided coinciding with the living hinges 136 as a visual reference of the living hinges, or as an aesthetic element. These lines may also be provided in order to prevent cracks from forming in the overmold 138 .
- the overmold 138 may be formed in situ by injection molding, or by curing in place.
- the edge which it encases may have an irregular shape, such as a grooved edge or protruding edge, to provide the material of the overmold 138 a larger surface area for adhesion.
- the encompassing of the slots 134 by the overmold 138 also provides a larger surface area for adhesion between the overmold 138 and the portion to which it is connected.
- the overmold 138 provides a flexible interface between the rigid edges of the substantially rigid splint member 110 and the user's body.
- irritation due to the hard and sometimes sharp edges is reduced or eliminated.
- the dorsal splint 100 provides a more comfortable fit for the prolonged use during sleeping for both the user and any person sharing the same bed as the user. This feature is an improvement over conventional dorsal splints that do not provide adequate protection from the rigid, and sometimes sharp, edges of the dorsal splints.
- the groove or channel 137 defining the living hinges 136 is provided along the posterior surface 116 of the upper member 112 .
- the living hinge 136 defines a recess 139 formed between the wings 134 so as to facilitate bending of the wings 134 relative to the upper portion 112 .
- the overmold 138 only partially encompasses the slots 134 on the posterior surface 116 of the upper member 112 , in order to keep the recess or groove of the living hinge 136 free of material so that the upper wing portions 130 may more freely flex. This configuration may be used with each embodiment described. Alternatively, although less desirable, the overmold 138 may partially encompass the groove or channel.
- fastening mechanisms such as patches of hook material 140 .
- the patches are positioned on the posterior surfaces 116 , 122 of the upper 112 and intermediate 118 portions to aid with removably retaining a flexible inner member 142 against the posterior surfaces 116 , 122 of the upper 112 and intermediate 118 portions, as will be more fully discussed below.
- Patches 140 may be of any suitable size and may be attached to the posterior surfaces 116 , 122 of the upper 112 and intermediate 118 portions in any suitable manner, such as by adhesion.
- patches 140 of hook material may be integrally injection molded with the substantially rigid splint member 110 .
- the patches 140 may be of hook receiving material.
- the patches 140 may cover substantially the entire posterior surfaces 116 , 122 of the upper 112 and intermediate 118 portions. It will be understood that, any suitable fastening mechanism, such as snap fasteners, may be provided in place of the patches of hook material 140 .
- the flexible inner member 142 has substantially the same shape as the substantially rigid splint member 110 .
- the flexible inner member 142 acts as a compliant interface between a user's leg, foot, and ankle and the substantially rigid splint member 110 . Accordingly, to aid with the reduction of irritation caused by the substantially rigid splint member 110 , the flexible inner member 142 may be slightly larger than the substantially rigid splint member 110 .
- the flexible inner member 142 has first 144 and second surfaces 146 , and proximal 148 and distal 150 ends.
- the first surface 144 may carry or be made from hook receiving material.
- the first surface 144 may carry or be made from hook material.
- the hook receiving material may be broken or unbroken loop material formed by example from nylon. In this manner the first surface 144 is selectively removably fixed to the posterior surfaces 116 , 122 of the upper 112 and intermediate 118 portions.
- a pouch 154 is provided on the first surface 144 along a portion of the distal end 150 of the flexible inner member 142 for receiving at least a portion of the lower portion 124 .
- the pouch 154 may be formed from any suitable material and may define a proximal surface 156 that carries or is made from hook receiving material 158 for a purpose to be described below.
- any suitable fastening material or mechanism such as hook material or snap fasteners may be provided.
- the flexible inner member 142 does not include the pouch 154 , but instead is retained on the dorsal splint 100 via at least one additional patch of hook material 140 that is positioned on the distal surface of the lower portion 124 in the same manner as discussed above.
- the lower portion 124 of the substantially rigid splint member 110 is received within the pouch 154 .
- the flared end portions of the lower portion 124 also help to engage the inner portions of the pouch 154 to assist with maintaining the lower portion 124 within the pouch 154 .
- the first surface of the flexible inner member 142 is then removably fastened to the posterior surfaces 116 , 122 of the upper 112 and intermediate 118 portions.
- the flexible inner member 142 is retained on the substantially rigid splint member 110 so that the dorsal splint 100 may be placed upon the leg, ankle, and foot of the wearer.
- further hook and hook receiving materials, or any other suitable fastening mechanism, such as snap fasteners may be provided.
- the flexible inner member 142 may be non-removably connected to the substantially rigid splint member 110 by, for example, an adhesive.
- the second surface 146 of the flexible inner member 142 includes or defines at least one padding member 152 .
- a plurality of padding members 152 of varying thickness may be provided in any suitable pattern along the second surface 146 .
- a thicker padded portion may be provided in the area of the intermediate portion in order to protect the bony protuberance of the dorsum.
- thicker padded portions may also be used to increase the angle of dorsiflexion.
- the padding may be a thermoform pad having a pattern that provides a “formfit.” This may be accomplished by utilizing various thicknesses throughout the pattern.
- the second surface 146 may be a soft covering that is not receptive to receiving hook material. Of course, any suitable material or fabric will suffice.
- an elastic fabric member 160 is provided.
- the elastic fabric member 160 has proximal 166 and distal 168 surfaces, as well as first 162 and second 164 ends connected to first and second edges along the distal end 150 of the flexible inner member 142 .
- the elastic fabric member 160 thus forms a loop that the distal portion of the foot is placed within in order to maintain the dorsal splint 100 in position while allowing for further adjustment and tightening.
- the ends 162 , 164 of the elastic fabric member 160 may be connected to the flexible inner member 142 in any suitable manner, such as by sewing, or by zipper closures.
- the elastic fabric member 160 may form a continuous loop that has one surface secured to the second surface 146 of the flexible inner member 142 .
- the elastic fabric member 160 may be an elastic band, or an elastic stockinette, as will be recognized by a skilled artisan.
- a distal strap 170 defining proximal 172 and distal 178 surfaces and first 182 and second 184 ends is connected to the distal surface 168 of the elastic fabric member 160 .
- the connection may be such that the strap 170 and elastic fabric member 160 are sewn together around a surface, along multiple lines, or adhesively or otherwise connected.
- the strap 170 includes first 174 , intermediate 176 , and second 180 layers.
- the intermediate layer 176 may be an open or closed cell, compressed or thermoformed foam material. Suitable materials include, but are not limited to, polyurethane foams.
- a strap 170 is provided that includes some cushioning, such that the strap will not dig into the flesh of the user and thus will not cause pain and discomfort.
- the flexible inner member 142 may be formed in a similar tri-layer manner with the padding 152 being formed in the same manner as the intermediate layer 176 of the strap 170 .
- the first 174 and second 180 layers define the proximal 172 and distal 178 surfaces.
- the proximal 172 and distal 178 surfaces may both carry or be composed of hook receiving material. Patches of hook material 140 may also be received along the first 182 and second 184 ends of the strap 170 .
- the location of the hook material and the hook receiving material may be interchanged, and other fastening mechanisms, such as buckles or snap fasteners, may be provided.
- the dorsal splint 100 is located in position on the foot via the elastic fabric member 160 , the first 182 and second 184 ends of the strap 170 are folded up and over so that the patches of hook material 140 engage the hook receiving material 158 of the proximal surface 156 of the pouch 154 , or the hook receiving material of the strap surfaces 178 . In this manner the lower portion 124 are tightened in position along the dorsal surface of the foot. During tightening, the straps are pulled from two sides and thus, the dorsal splint 100 will be properly positioned in the middle of the limb, as opposed to tilting to one side or the other when being pulled from a single side only and wrapped around the limb.
- a second, proximal strap 170 secures the upper portion 112 against the lower leg and shin of the user.
- the proximal strap 170 may have the same construction as previously discussed with respect to the distal strap 170 .
- Each of the first and second ends of the proximal strap 170 are received in respective slots 134 in the upper wing portions 130 .
- the proximal strap 170 extends from the slots 134 between the posterior surface 116 of the upper member 112 and the first surface 144 of the flexible inner member 142 in order to encircle the user's leg.
- the patches of hook material 140 on the proximal strap 170 are connected directly to the hook receiving material of the surface of the strap 170 to tighten and fasten the proximal strap 170 .
- any suitable alternate fastening mechanism may be utilized.
- the dorsal splint 100 provides an improved and more comfortable fit for both the user and anyone sharing the bed of the user.
- the dorsal splint 100 may be utilized in numerous variations of the above described embodiment.
- the substantially rigid splint member 110 may be used without the flexible inner member 142 , and may instead have proximal and distal straps associated with the slots 134 in the upper and lower portions.
- the overmold 138 may encompass the slots 134 in the upper 112 and lower 124 portions.
- an elastic band or stockinette may be connected directly to the substantially rigid splint member 110 in any suitable manner, such as by an adhesive.
- the stockinette may extend along only a portion of the substantially rigid splint member 110 , for example, so as to engage only the plantar surface of the foot.
- the stockinette may extend along the entire substantially rigid splint member 110 so as to engage the plantar surface of the foot, the heel, and the calf of a user.
- FIG. 2A An alternate configuration of a dorsal splint 100 is shown in FIG. 2A .
- the dorsal splint 100 has the same general configuration as previously discussed.
- Upper wing portions 130 are delineated from the main dorsal splint 100 via living hinges 136 , in the exemplary manner that is discussed above.
- the wing portions 130 include slots 134 for receiving appropriate strap mechanisms therethrough, in a manner as discussed above.
- a flexible edge overmold 138 is provided around the entire periphery of the dorsal splint 100 .
- patches 140 of hook material are provided on or embedded in the proximal surface 126 of the lower portion 124 of the dorsal splint 100 .
- the patches 140 may alternatively be formed of hook receiving material.
- any suitable strap will have either hook receiving or hook material therein respectively corresponding to the hook or hook receiving material of the patches 140 for selective releasable engagement therewith.
- the patches 140 provide an anchor point for any suitable distal strap that is utilized with the dorsal splint 100 . Any suitable strap may thus be wrapped around the plantar surface of the foot and the ends thereof may be anchored or engaged with the patches 140 . Thus, there is no need for slots in the lower portion 124 of the dorsal splint 100 , and the flexible edge overmold 138 may extend around and encompass the entire periphery of the dorsal splint 100 .
- the substantially rigid splint member 110 may include only the living hinges, and not the overmold, between the wing portions and the upper portion in order to provide the desired amount of flexibility for an improved, closer fit.
- the substantially rigid splint member 110 may include only the overmold, and not the living hinges, in order to provide a compliant interface between the substantially rigid splint member 110 and the user's skin. Further embodiments are discussed in more detail below.
- a single strap 300 may be utilized, as shown in FIGS. 3A-D .
- a substantially rigid splint member 110 having similar features as described above, such as a flexible edge overmold and/or living hinges, is provided.
- Strap 300 is provided in the shape or form of a “FIG. 8 .” More specifically, the strap 300 has first 302 and second 304 ends and first 312 and second 314 surfaces. The first end may be fixed along the distal end of the dorsal splint 100 , for example along the lower portion 124 or the intermediate portion 118 . Alternatively, the first end 302 may be fixed to the first surface 312 of the strap 300 .
- the second end 304 is wrapped around the substantially rigid splint member 110 such that the second surface 314 of the strap contacts the proximal surfaces of each of the upper, intermediate, and lower portions, and the first surface 312 of the strap 300 such that the strap crosses over itself along the proximal surface of the intermediate portion and forms first 308 and second loops 310 .
- Loop locks 306 may be provided in order to keep the strap 300 in position with the loops 308 , 310 maintained.
- the user places the foot through both the loops 308 , 310 so the first loop 308 will contract around the plantar surface of the foot and the second loop 310 will contract around the calf of a user.
- the second end 304 of the strap 300 is pulled to tighten both of the loops 308 , 310 simultaneously.
- the strap 300 may be provided with both hook material and hook receiving material, for example a patch of hook material along the second end 304 , such that once the strap 300 has been tightened it may be locked in the tightened position.
- each loop portion 308 , 310 of the strap 300 may include an elastic or stretch portion 316 and a non-stretch portion 318 .
- the elastic or stretch portion 316 and the non-stretch portion 318 may be formed as separate pieces that are attached only along the ends of one or the other of the elastic or stretch portion 316 and the non-stretch portion 318 .
- the “FIG. 8 ” strap may be utilized with any of the disclosed embodiments of a dorsal splint with the appropriate modifications. Specifically, a flexible inner member may be provided between the loops of the strap and the substantially rigid splint member. Or, as described in more detail below, inflatable or non-inflatable air bladders or gel pads may be used between the strap and the plantar surface of the foot.
- FIGS. 4A-E An embodiment of a dorsal splint 100 is shown in FIGS. 4A-E that is similar to an embodiment discussed above with respect to FIGS. 1A-E , 2 , and 2 A.
- the dorsal splint as shown in FIGS. 4A-4E is constructed in a similar manner and from the same materials as discussed above with respect to the embodiments illustrated in FIGS. 1A-E , 2 , and 2 A.
- the overmold 138 encompasses upper wing portions 130 , lower wing portions 132 , and upper and lower slots 134 .
- the lower portion 124 provides an enlarged surface area for engaging the dorsal surface of the foot. This configuration provides increased stability and increased support to the dorsal aspect of the foot.
- the dorsal splint 100 includes a flexible inner member 142 similar in configuration to those previously discussed, there is no pouch member provided at the distal end of the flexible inner member 142 . Instead, the flexible inner member 142 is retained on the substantially rigid splint member 110 via only hook and loop or other appropriate fastening mechanism, as discussed in detail above.
- “living hinges” 136 are provided in the upper portion 112 between a main a section of the upper portion 112 and the upper wing portions 130 in a manner as described above.
- the flexible inner member 142 has substantially the same shape as the substantially rigid splint member 110 .
- the flexible inner member 142 may be constructed in substantially the same manner as discussed above, without the pouch portion on the proximal surface.
- the first surface of the flexible inner member 142 is removably fastened to the posterior and distal surfaces 116 , 122 , 128 of the upper 112 , intermediate 118 , and lower 124 portions, as shown in FIG. 4E .
- the flexible inner member 142 is retained on the substantially rigid splint member 110 so that the dorsal splint 100 may be placed upon the leg, ankle, and foot of the wearer.
- the flexible inner member 142 may be non-removably connected to the substantially rigid splint member 110 by, for example, an adhesive.
- the second surface 146 of the flexible inner member 142 includes or defines at least one padding member 152 .
- a plurality of padding members 152 of varying thickness may be provided in any suitable pattern along the second surface 146 , as shown in FIG. 4D .
- a thicker padded portion may be provided in the area of the intermediate portion in order to protect the bony protuberance of the dorsum.
- thicker padded portions may also be used to increase the angle of dorsiflexion.
- the padding may be a thermoform pad having a pattern that provides a “form fit.” This may be accomplished by utilizing various thicknesses throughout the pattern.
- the second surface 146 may be a soft covering that is not receptive to receiving hook material. Of course, any suitable material or fabric will suffice.
- Proximal and distal straps 170 are provided for engaging the slots 134 in the upper wing portions 130 and in the lower portion 124 .
- the straps 170 have first 182 and second 184 ends respectively received in the slots 134 and have surfaces carrying or made from hook and/or hook receiving material so that the straps 170 may be fastened onto themselves, as shown in FIGS. 4A-D .
- any suitable fastening mechanism such as snap fasteners or buckles, may be used.
- the straps 170 are positioned between the substantially rigid splint member 110 and the flexible inner member 142 , in order to prevent creating points of irritation.
- the straps may have a uniform or non-uniform shape and size, for example the width may vary along the length of the straps.
- the straps may be of the same layered construction as previously discussed.
- the dorsal splint 100 provides an improved and more comfortable fit for both the user and anyone sharing the bed of the user.
- the dorsal splint 100 may be utilized in numerous variations of the above described embodiment.
- the substantially rigid splint member 110 may be used without the flexible inner member 142 , and may instead have only the proximal and distal straps associated with the slots in the upper and lower portions.
- an elastic band or stockinette may be connected directly to the substantially rigid splint member 110 in any suitable manner, such as by adhesive, or to the flexible inner member 142 in any suitable manner.
- the stockinette may extend along only a portion of the substantially rigid splint member 110 , for example, so as to engage only the plantar surface of the foot.
- the stockinette may extend along the entire substantially rigid splint member 110 so as to engage the plantar surface of the foot, the heel, and the calf of a user.
- the substantially rigid splint member 110 may include only the living hinges, and not the overmold, between the wing portions and the upper portion in order to provide the desired amount of flexibility for an improved, closer fit.
- the substantially rigid splint member 110 may include only the overmold, and not the living hinges, in order to provide a compliant interface between the substantially rigid splint member 110 and the user's skin. Further embodiments are discussed in more detail below.
- FIG. 5 A collapsible embodiment of a dorsal splint 500 is shown in FIG. 5 .
- a flexible member 510 has a shape that roughly corresponds, and may conform to, the dorsal aspects of a user's lower leg, ankle and foot.
- the shape includes a generally rectangular shape with a wider portion in the proximal area of the flexible member 510 .
- the flexible member 510 may be formed from any suitable material, and may include a plurality of layers. A suitable layered structure is discussed above with respect to straps 170 . Accordingly, the flexible member may include layers of fabric and foam, including layers of hook receiving material.
- At least one pouch or pocket 512 Amongst and/or within the layers is at least one pouch or pocket 512 .
- three pouches 512 extend longitudinally along the flexible member 510 .
- any suitable number of pouches 512 may be used.
- the substantially rigid splint members 514 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters.
- the substantially rigid splint members 514 may be formed in any suitable manner, for example injection molding, casting, or curing.
- the substantially rigid splint members 514 include an upper portion having anterior and posterior surfaces shaped and configured to engage the dorsal aspect of the leg.
- An intermediate portion is integrally formed with the upper portion and includes anterior and posterior surfaces and is further shaped and configured to engage the dorsum.
- the intermediate portion may be formed as a separate piece from the upper portion.
- the distinct pieces may be connected to each other in any suitable manner, such as by welding or adhesives.
- a lower portion is integrally formed with the intermediate portion in order to form the substantially rigid splint members. Proximal and distal surfaces are provided on the lower portion. As an alternative, the lower portion may be formed as a separate piece from the intermediate portion. The distinct pieces may be connected to each other in any known suitable manner, such as by welding or adhesives.
- the substantially rigid splint members 514 comprise three portions, an upper portion, an intermediate portion, and a lower portion. Each portion is shaped and configured to engage a respective portion of the wearer's body.
- the upper posterior surface may be generally flat or concave in shape in order to accommodate the fore leg, or shin.
- the shape of a concavity may be uniform or non-uniform along the posterior surface.
- the upper anterior surface may have a flat or contoured shape to match the shape of the upper posterior surface.
- the upper portion may have any suitable thickness in order to provide the appropriate rigidity and support to the dorsal splint. The thickness may be uniform or non-uniform across the width, and along the length of the upper portion.
- the intermediate portion is shaped and configured to engage the dorsal aspect of the user's ankle. Accordingly, like the upper portion, the posterior surface of the intermediate portion may have a substantially flat or concave shape to accommodate the user's ankle. Similarly to the upper portion, the shape of a concavity may be uniform or non-uniform. The thickness of the intermediate portion may also be uniform or non-uniform. The proximal end of the intermediate portion is merged with the distal end up the upper portion and provides a smooth transition such that a point of irritation is not created at the juncture. Of course, if the intermediate and upper portions are separately formed and joined together, any appropriate surface treatment, such as sanding, grinding, or polishing, may be utilized to provide a smooth transition.
- the lower portion is shaped and configured to engage the dorsal aspect of the user's foot.
- the distal surface of the lower portion may have a substantially flat or concave shape.
- a concavity and thickness of the lower portion may be uniform or non-uniform.
- the proximal end of the lower portion is merged with the distal end of the intermediate portion in order to provide a smooth transition between the two portions.
- the combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position when used in combination with the flexible member 510 .
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- the substantially rigid splint members 514 are received in the pockets or pouches 512 of the flexible member 510 .
- the pouches or pockets 512 may have openings at either end, or along the length of the pouches, in order to receive the substantially rigid splint members 514 .
- the openings may always be open, in order to allow the substantially rigid splint members 514 to be removably received therein. Or the openings may be closed, in a known manner, once the substantially rigid splint members 514 have been received therein. For example, the openings may be sewn shut.
- the brace is collapsible in order to fit into a smaller package.
- the pouches or pockets 512 and the substantially rigid splint members 514 are slightly spaced from each other in order to allow the flexible member to more easily conform to the curved surfaces of the dorsal aspects of the user's lower leg, ankle, and foot, and to collapse into a flat configuration when not in use. Additionally, the wider portion of the proximal end of the flexible member 510 may have no rigid splints or stays in order to provide a more comfortable fit.
- the flexible member 510 may be formed of softgood, and straps may be sewn to the flexible member 510 at one end.
- the straps may carry hook material at the other end in order to be fixed directly to the flexible member 510 or to the straps themselves.
- the flexible member 510 may include slotted loops for receiving ends of straps, in a manner previously discussed.
- FIGS. 6A and 6B An embodiment of a hybrid dorsal splint 600 is shown in FIGS. 6A and 6B .
- a substantially rigid splint member 602 may be constructed in a similar manner and with similar materials as previously discussed with respect to various other embodiments. As described with respect to previous embodiments, the substantially rigid splint member 602 includes upper, intermediate, and lower portions having anterior and posterior/distal surfaces shaped and configured to engage the dorsal aspects of the leg.
- the substantially rigid splint member 602 comprises three portions, an upper portion, an intermediate portion, and a lower portion. Each portion is shaped and configured to engage a respective portion of the wearer's body.
- the upper posterior surface may be generally flat or concave in shape to accommodate the leg, or shin.
- the intermediate portion is shaped and configured to engage the dorsal aspect of the user's ankle. Accordingly, like the upper portion, the posterior surface of the intermediate portion may have a substantially flat or concave shape to accommodate the user's ankle.
- the lower portion is shaped and configured to engage the dorsal aspect of the user's foot.
- the distal surface of the lower portion may have a substantially flat or concave shape.
- the combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- the “hybrid” aspect of this embodiment of a dorsal splint arises from the addition of flexible members 604 , 608 to the substantially rigid splint member 602 as an alternative to the flexible edge overmold of previous embodiments.
- the flexible members 604 , 608 may be fixed to the substantially rigid splint member 602 to provide a comfortable and close fit between the dorsal splint 600 and the user's leg.
- a flexible inner member 614 may also be provided, similar to those previously discussed.
- the flexible members 604 , 608 may be positioned as upper and intermediate or lower flexible members.
- the upper and intermediate or lower flexible members 604 , 608 may attached to the substantially rigid splint member 602 in any suitable manner, either in a fixed or removable manner.
- fasteners such as rivets, 612 are provided. Since these elements are riveted strategically on and along the curvature of the main shell of the substantially rigid splint member 602 , the overall dorsal splint maintains rigidity when it is worn, even with the use of thin flexible members 604 , 608 .
- any suitable fastening system such as adhesive or snap fasteners, may also be used.
- the upper and intermediate or lower flexible members 604 , 608 have a width greater than the substantially rigid splint member 602 in order to define flexible wing portions 606 , 610 .
- the flexible wing portions 606 , 610 allow the dorsal splint 600 to better conform to the user's body, in order to provide a closer and more comfortable fit.
- the flexible members 604 , 608 also flex inwardly in order to fit into a smaller package.
- the flexible members 604 , 608 may be formed from any suitable material, for example a thermoset polymer, such as solid polyurethane. Of course any suitable material, such as a thermoplastic elastomer, may be used.
- a flexible inner member 614 such as any of those previously discussed, is also provided.
- any suitable strapping mechanism such as those discussed above and below, may be provided in order to retain the dorsal splint 600 in position on the user's body.
- FIG. 7 An embodiment of an integral dorsal splint 700 is shown in FIG. 7 .
- the integral dorsal splint 700 includes a flexible member 710 and defines surfaces which act as an interface between the dorsal splint 700 and the dorsal aspects of the leg.
- a substantially rigid splint member 720 having a flexible edge overmold 730 is integrally formed on the proximal surfaces of the flexible member 710 .
- the substantially rigid splint member 720 may have a similar configuration as previously discussed.
- the flexible edge overmold 730 encases an outer edge of at least the upper portion, and as shown encases an outer edge of both the upper portion and the intermediate portion. Of course, the overmold 730 may encase the outer edge of the lower portion as well.
- Both the substantially rigid splint member 720 and the overmold 730 may be formed by injection molding directly onto and integrally with the flexible member 710 .
- the dorsal splint 700 utilizes the flexible member 710 to provide a compliant surface interface between the dorsal splint 700 and the dorsal aspects of the leg.
- the flexible member 710 may be softgood, or a sheet of material, such as a polypropylene knit material, a polyester knit material, a nylon, or any other suitable slightly porous material to allow the materials of the rigid splint member 720 and the overmold 730 to pass therethrough to be become integrated with the flexible member 710 .
- the substantially rigid splint member 720 and the overmold 730 are integrally formed with the flexible member 710 by injection molding.
- the pores of the flexible member 710 allow the plastic or polymer material of the substantially rigid splint member 720 and the overmold 730 to pass through the flexible member 710 and to bind the flexible member 710 to the substantially rigid splint member 720 and the overmold 730 .
- the flexible member 710 provides a soft and compliant interface between the surfaces of the substantially rigid splint member 720 and the body of the user. This allows the dorsal splint 700 to more closely conform to the user's body.
- Proximal and distal straps 740 are provided to maintain the dorsal splint 700 on the body of the user.
- the straps 740 may be sewn or otherwise attached to the flexible member 710 , for example via slots and loops along the edges of the flexible member 710 .
- straps 740 may be riveted or otherwise fastened to the anterior and proximal surfaces of the substantially rigid splint member 720 .
- Straps 740 may be of any suitable type or construction, such as those discussed above and below.
- the overmold 730 and flexible member 710 provide a flexible interface between the rigid edges of the substantially rigid splint member 720 and the user's body.
- irritation due to the hard and sometimes sharp edges is reduced or eliminated.
- the dorsal splint 700 provides a more comfortable fit for the prolonged use during sleeping for both the user and any person sharing the same bed as the user.
- living hinges of the type described herein, may be provided to increase the flexibility of the wider portions of the dorsal splint 700 in order to allow greater conformance to the user's body. Further embodiments of a dorsal splint are discussed in more detail below.
- FIGS. 8A-C An embodiment of an alterable dorsal splint 800 is shown in FIGS. 8A-C .
- the alterable dorsal splint 800 includes substantially rigid upper and lower splint members 810 , 820 .
- the upper member 810 includes anterior and posterior surfaces and is shaped and configured to engage the dorsal aspect of the lower leg.
- the upper member further includes first and second wing portions extending respectively from first and second sides of the upper portion.
- the upper posterior surface is generally concave in shape to accommodate the fore leg, or shin.
- the shape of the concavity may be uniform or non-uniform along the posterior surface.
- the upper anterior surface may have a contoured shape to match the shape of the upper posterior surface.
- the upper portion may have any suitable thickness in order to provide the appropriate rigidity and support to the dorsal splint 800 .
- the thickness may be uniform or non-uniform across the width, and along the length of the upper portion.
- the lower portion 820 is shaped and configured to engage the dorsal aspect of the user's foot.
- the distal surface of the lower portion has a substantially concave shape.
- a flared distal end portion may be provided to avoid rigid corners that would dig into the flesh of the dorsal surface of the user's foot.
- the concavity and thickness of the lower portion may be uniform or non-uniform.
- An intermediate connector portion 830 such as a hinge or joint, is provided between the upper 810 and lower 820 portions.
- the intermediate connector portion 830 is formed to allow relative rotation between the upper 810 and lower 820 portions in order to reduce the overall size or length of the dorsal splint 800 when the splint is not in use.
- a flexible edge overmold or living hinges may be provided for one or both of the upper 810 and lower 820 portions.
- a suitable flexible inner member and/or suitable fastening and tightening mechanisms may also be provided.
- a flip type hinge is provided as the intermediate connector portion 830 .
- This hinge type is common in mobile phones, and may be referred to as a “flip phone” hinge.
- This hinge allows the upper 810 and lower 820 portions to be opened and closed in a manner so that when closed, the lower portion 820 lies against the upper portion 810 . In this manner the overall length of the dorsal splint 800 is reduced when the splint is not in use.
- the hinge may be provided with suitable locking mechanisms, as will be recognized by the skilled artisan, such as a spring biasing mechanism, in order to prevent the accidental movement of the upper 810 and lower 820 portions with respect to each other.
- a ball joint swivel bearing connection is provided.
- This connection provides relative rotation between the upper 810 and lower 820 portions in three axes.
- a locking mechanism may be provided to lock the upper 810 and lower 820 portions from relative movement, as will be recognized by a skilled artisan. In this manner the angle of dorsiflexion may be adjusted.
- the dorsal splint 800 may be adjusted for different inherent angles of abduction/adduction in user's feet. Of course, when the dorsal splint is not in use the upper 810 and lower 820 portions may be rotated to lie against each other in order to reduce the overall size and length of the splint.
- a single axis swivel connection is provided such that the upper 810 and lower 820 portions may be rotated in substantially a plane to lie against one another. As previously discussed, this allows the overall size and length of the dorsal splint 800 to be reduced.
- the combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed or altered by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- FIG. 9 An embodiment of a flexible (or flex) edge strap 900 for use with a dorsal splint is shown in FIG. 9 .
- the flex edge strap 900 is formed from two layered materials.
- the first layer of material 910 may be a thin layer of flexible material such as urethane foam or neoprene.
- the first layer of material 910 has or defines a first width.
- the second layer of material 920 may be layer of non-stretch material, such as woven nylon.
- the second layer 920 further includes hook receiving material.
- the second layer 920 has a width that is less than the width of the first layer 910 of flexible material.
- the two layers 910 , 920 are connected together in any suitable manner, such as by sewing or adhesive.
- the second layer 920 may be centered along the first layer 910 , or may be offset or aligned along an edge of the first layer 910 .
- the second layer 920 may be provided along the entire length of the first layer 910 , or only along selected portions of the first layer 910 . In this manner the lengthwise stretch of the strap may be controlled by the second, non-stretch layer 920 .
- the strap 900 When the second layer 920 is centered along the length of the first layer 910 the strap 900 becomes a flexible edge strap.
- the strap 900 is therefore able to conform to the anatomy of the user so as to reduce pressure points.
- the width of the second, non-stretch layer 920 may be varied to alter the amount of flex along the edges of the strap 900 .
- Hook material is provided along the ends of the strap 900 so that the strap 900 may be closed against itself when the hook material engages with the hook receiving material of the second, non-stretch layer 920 .
- the strap 900 may be utilized in any of the above or below discussed embodiments of a dorsal splint.
- FIGS. 10A and 10B Another embodiment of a collapsible dorsal splint 1000 is shown in FIGS. 10A and 10B .
- a flexible member 1030 includes first, second, third, and fourth pockets 1032 , 1034 , 1036 , 1038 .
- the first and second pockets 1032 , 1034 extend lengthwise along either the first and second sides of the flexible member 1030 from the proximal end towards the distal end, and are formed along a centerline of the flexible member 1030 .
- the pockets 1032 , 1034 extend to the point in the flexible member 1030 of the transition between the ankle engaging portion and the foot engaging portion.
- the pockets 1032 , 1034 may extend the entire length of the flexible member 1030 . Of course, more than two pockets may be utilized.
- the flexible member 1030 having a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot is provided.
- the flexible member 1030 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials.
- the flexible member 1030 is provided with at least one pocket or pouch along a first or second surface.
- the pockets 1032 , 1034 may be formed in any suitable manner, such as by layers of fabric connected along the edges of one of the layers by threads, adhesive, or in any other suitable manner.
- the pockets may each have an open end along the proximal end of the flexible member 1030 .
- the openings may be along the distal end, or along either surface of the flexible member 1030 .
- the open ends may be maintained open or closed off in a manner described below.
- Substantially rigid first and second splint members 1010 , 1020 are provided to be received within the first and second pockets 1032 , 1034 .
- the splint members 1010 , 1020 may have upper, intermediate, and lower portions that are shaped and configured to engage the dorsal aspect of the lower leg, ankle, and at least a portion of the foot.
- the splint members 1010 , 1020 may have upper, intermediate, and lower portions that are shaped and configured to engage the dorsal aspect of the lower leg, ankle, and a substantial portion of the foot.
- the substantially rigid splint members 1010 , 1020 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters.
- the substantially rigid splint members 1010 , 1020 may be formed in any suitable manner, for example injection molding, casting, or curing.
- Each substantially rigid splint member 1010 , 1020 includes anterior and posterior surfaces that may have the desired amount of uniform or non-uniform curvature in order to be complementary shaped to the user's lower leg, ankle and foot.
- the splint members 1010 , 1020 may have any suitable and desired shape.
- the splint members 1010 , 1020 may be wider at a proximal end and narrower at the distal end. The width may vary in a uniform or non-uniform manner in order to provide a comfortable fit for the user.
- the first and second splint members 1010 , 1020 are either removably or fixedly received in the first and second pockets 1032 , 1034 .
- the splint members 1010 , 1020 are slid into the pockets. If it is desired to maintain the splint members 1010 , 1020 fixedly in the pockets 1032 , 1034 , the open ends may be closed or selectively closed by threads, adhesives, zipper closures, or any other suitable manner.
- the flexible member 1030 also includes third and fourth pockets 1036 , 1038 , which may be formed as discussed above.
- the third and fourth pockets 1036 , 1038 extend from the distal end towards the proximal end of the flexible member 1030 .
- the third and fourth pockets 1036 , 1038 are shaped to extend along the first and second sides of the flexible member 1030 and along the distal portions of the first and second pockets 1032 , 1034 .
- the pockets 1036 , 1038 include open ends at the distal ends. Alternatively, the open ends may be provided at the proximal ends or along either surface of the flexible member 1030 . They may be provided with any suitable shape.
- First and second substantially rigid removable stays (or splint members) 1040 , 1050 are provided for insertion into the third and fourth pockets 1036 , 1038 . While the stays 1040 , 1050 are described as removable, they may also be fixed within the pockets as discussed above with respect to the splint members 1010 , 1020 .
- the stays 1040 , 1050 may be formed in the same manner as the splint members 1010 , 1020 , and from any of the materials listed above.
- the stays 1040 , 1050 may be shaped and configured to engage the dorsal aspect of the user's foot, and at least a portion of the dorsal aspect of the ankle.
- Straps 1060 of any suitable configuration are provided at least along the proximal and distal portions of the dorsal splint 1000 .
- the straps 1060 may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners.
- the substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- splint members 1010 , 1020 and stays (or splint members) 1040 , 1050 to essentially divide the dorsal splint 1000 in half, allows the dorsal splint 1000 to take a lower profile while not attached to a user, for ease of storage.
- This configuration further allows the dorsal splint 1000 to better conform to the user's lower leg, ankle, and foot, by allowing the splint 1000 to flex around its centerline.
- the splint members 1010 , 1020 and stays 1040 , 1050 are allowed to be removable, the flexible member may be completely flattened and collapsed, thus reducing the space required for storage.
- the dorsal splint 1000 is more suitable for travel, so a user may use the splint every night, even while traveling.
- FIG. 11 Another embodiment of a collapsible dorsal splint 1100 is shown in FIG. 11 .
- the flexible member 1130 is provided with at least one pocket or pouch along a first or second surface.
- a flexible member 1130 includes a single pocket or pouch 1132 that extends length-wise along the entire flexible member 1130 .
- the pocket may be open at a proximal end, or along the distal end, or along either surface of the flexible member 1130 .
- First, second, and third splint members 1110 , 1120 , 1122 are either removably or fixedly received in pockets 1132 .
- the splint members 1110 , 1120 , 1122 are slid into the pockets. If it is desired to maintain the splint members 1110 , 1120 , 1122 fixedly in the pocket 1032 the open ends may be closed or selectively closed by threads, adhesives, zipper closures, or in any other suitable manner.
- Substantially rigid first and second splint members 1110 , 1120 are provided to be received within the pockets 1032 .
- the splint members 1110 , 1120 have upper, intermediate, and lower portions that are shaped and configured to engage the dorsal aspect of the lower leg, ankle, and at least a portion of the foot.
- the splint members 1110 , 1120 may have upper, intermediate, and lower portions that are shaped and configured to engage the dorsal aspect of the lower leg, ankle, and a substantial portion of the foot.
- a third splint member 1122 is provided between the first and second splint members 1110 , 1120 .
- the third splint member 1122 may be rigid in the manner of the other splint members, or alternatively, may be made from a flexible material, such as plastic. Suitable materials may include thermoplastic elastomers, silicones, or urethanes.
- the flexible member 1130 may be similar to the previously discussed flexible member.
- the flexible member 1130 has a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot.
- the flexible member 1130 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials.
- the substantially rigid splint members 1110 , 1120 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters.
- the substantially rigid splint members 1110 , 1120 may be formed in any suitable manner, for example injection molding, casting, or curing.
- Each substantially rigid splint member 1110 , 1120 includes anterior and posterior surfaces that have the desired amount of uniform or non-uniform curvature in order to be complementary shaped to the user's lower leg, ankle and foot.
- the splint members 1110 , 1120 may have any suitable and desired size and shape.
- the splint member 1110 , 1120 may be wider at a proximal end and narrower at the distal end. The width may vary in a uniform or non-uniform manner in order to provide a comfortable fit for the user. Further, the thickness may also vary in any suitable manner.
- Straps 1140 of any suitable configuration are provided at least at the proximal and distal portions of the dorsal splint 1000 .
- the straps 1140 may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners.
- the substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- the splint members 1110 , 1120 , 1122 are allowed to be removable, the flexible member may be completely flattened and collapsed, thus reducing the space required for storage.
- the dorsal splint 1100 is more suitable for travel, so a user may use the splint every night, even while traveling.
- the dorsal splint 1100 may be collapsed and packaged for sale in a smaller container, and thus may save sale display and shelf space, such that more dorsal splints 1100 may be displayed in a defined amount of space.
- FIG. 12 Another embodiment of a collapsible dorsal splint 1200 is shown in FIG. 12 .
- a flexible member 1230 similar to the previously discussed flexible member, has a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot is provided.
- the flexible member 1230 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials.
- the flexible member 1230 may be provided with at least one pocket or pouch along a first or second surface.
- the flexible member 1230 includes a plurality of pockets or pouches 1240 that apportion the width and length along the entire flexible member 1230 .
- the pockets may be open at proximal ends, along distal ends, or along either surface of the flexible member 1230 .
- Substantially rigid segmented splint members 1220 are provided to be received within the pockets 1240 .
- the splint members 1220 have portions that are shaped and configured to engage portions of the dorsal aspect of the lower leg, ankle, and the foot.
- the substantially rigid segmented splint members 1220 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters.
- the substantially rigid splint members 1220 may be formed in any suitable manner, for example injection molding, casting, or curing.
- Each substantially rigid splint member 1220 includes anterior and posterior surfaces that have the desired amount of uniform or non-uniform curvature in order to be complementary shaped to the appropriate portion of the user's lower leg, ankle and foot.
- anterior and posterior surfaces that have the desired amount of uniform or non-uniform curvature in order to be complementary shaped to the appropriate portion of the user's lower leg, ankle and foot.
- the splint members 1220 may have any suitable and desired shape.
- the splint members 1220 are either removably, or fixedly, received in pockets 1240 .
- the splint members 1220 are inserted into the pockets. If it is desired to maintain the splint members 1220 fixedly in the pocket 1240 the open ends may be closed or selectively closed by threads, adhesives, zipper closures, or any other suitable manner.
- Straps of any suitable configuration are provided at least at the proximal and distal portions of the dorsal splint 1200 .
- the straps may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners.
- the substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- a plurality of splint members 1240 allows the dorsal splint 1200 to take a collapsed lower profile while not attached to a user, for ease of storage. This configuration further allows the dorsal splint 1200 to better conform to the user's lower leg, ankle, and foot, by allowing the splint 1200 to flex around the user's lower leg, ankle, and foot.
- the splint members 1240 are allowed to be removable, or are appropriately shaped, the flexible member may be completely flattened or nearly completely flattened, thus reducing the space required for storage.
- the dorsal splint 1200 is more suitable for travel, so a user may use the splint every night, even while traveling.
- FIGS. 13A-C Another embodiment of a collapsible dorsal splint 1300 is shown in FIGS. 13A-C .
- a flexible member 1330 similar to the previously discussed flexible member, has a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot is provided.
- the flexible member 1330 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials.
- the flexible member 1330 is provided with at least one pocket or pouch along a first or second surface.
- the flexible member 1330 includes a single pocket or pouch 1332 that extends length-wise along the flexible member 1330 .
- the pocket may be open at a proximal end, or along the distal end, or along either surface of the flexible member 1330 .
- Substantially rigid first and second splint members 1310 , 1320 are provided to be received within the pockets 1032 .
- the splint members 1310 , 1320 have upper, intermediate, and lower portions that are shaped and configured to engage the dorsal aspect of the lower leg, ankle, and at least a portion of the foot.
- the splint members 1310 , 1320 may have upper, intermediate, and lower portions that are shaped and configured to engage the dorsal aspect of the lower leg, ankle, and a substantial portion of the foot.
- the substantially rigid splint members 1310 , 1320 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters.
- the substantially rigid splint members 1310 , 1320 may be formed in any suitable manner, for example injection molding, casting, or curing.
- Each substantially rigid splint member 1310 , 1320 includes anterior and posterior surfaces that have the desired amount of uniform or non-uniform curvature in order to be complementary shaped to the user's lower leg, ankle and foot.
- the splint members 1310 , 1320 may have any suitable and desired shape.
- the splint members 1310 , 1320 may be wider at a proximal end and narrower at the distal end. The width may vary in a uniform or non-uniform manner in order to provide a comfortable fit for the user.
- the first and second splint members 1310 , 1320 are either removably, or fixedly, received in the pocket 1332 .
- the splint members 1310 , 1320 may be temporarily connected to each other along their length and then may be slid into the pocket 1332 . If it is desired to maintain the splint members 1310 , 1320 fixedly in the pocket 1332 the open end may be closed or selectively closed by threads, adhesives, zipper closures, or any other suitable manner.
- Straps 1340 of any suitable configuration are provided at least at the proximal and distal portions of the dorsal splint 1300 .
- the straps 1340 may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners.
- the substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position.
- the angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- the use of two splint members 1310 , 1320 to essentially divide the dorsal splint 1300 in half, allows the dorsal splint 1300 to take a collapsed or lower profile while not attached to a user, for ease of storage.
- This configuration further allows the dorsal splint 1300 to better conform to the user's lower leg, ankle, and foot, by allowing the splint 1300 to flex around its centerline.
- the splint members 1310 , 1320 are allowed to be removable, the flexible member may be completely collapsed or flattened, thus reducing the space required for storage.
- the dorsal splint 1300 is more suitable for travel, so a user may use the splint every night, even while traveling.
- first, second, and third substantially rigid splint members may be provided and three pockets may be provided within the flexible member.
- the first and second splint members may be sewn in, or otherwise fixedly received within first and second pockets in the flexible member.
- the third splint member may then be removable received within the third pocket, in a manner previously discussed.
- the dorsal splint may have a lower profile when not in use to reduce the amount of storage space required.
- FIGS. 14 , 15 , 16 , and 17 A-C Various embodiments of a dorsal splint 100 are illustrated in FIGS. 14 , 15 , 16 , and 17 A-C.
- the dorsal splint 100 of these embodiments has the same basic structure and configuration as discussed above with respect to the embodiments shown in FIGS. 1A-E , 2 , 2 A, and 4 A-E.
- an elastic fabric strap 170 is provided.
- the strap may have any suitable configuration to provide a comfort fit, such as an elongated opening along the portion of the strap that contacts the plantar surface of the foot.
- a pad or bladder 196 is provided between the strap 170 and the plantar surface of the foot.
- Any suitable pad 196 may be used, such as a gel pad, for example silicone gel or any suitable gel.
- the gel pad 196 may be utilized to provide therapeutic benefits, such as heating or cooling.
- a bladder 196 may be used in place of the gel pad.
- the bladder may be closed and formed of materials that will expand very little to define a single size.
- An inflatable or expandable bladder may also be used.
- the bladder may be filled with any suitable fluid, such as water or air, in order to define a particular size pad. Different size pads or bladders, or the expandable bladder, may be provided to alter the amount of dorsiflexion provided by the dorsal splint 100 .
- the substantially rigid splint member 110 includes lower wing portions 132 along the edges of the lower portion 134 of the substantially rigid splint member 110 . At least one slot 134 is provided in each of the lower wing portions 132 for receiving strap ends in a manner previously discussed.
- the lower wing portions 132 may be provided with living hinges in a similar manner as discussed above.
- the overmold 138 encases an outer edge of the lower portion 124 of the substantially rigid splint member 110 and further encompasses the slots 134 in the lower wing portions 132 . This configuration provides the benefits, as discussed above, of a better and more comfortable fit for the dorsal splint 100 .
- a distal strap 170 is provided for engaging the slots 134 in the lower portion 124 of the substantially rigid splint member 110 .
- a plurality of interchangeable straps may be provided having different thicknesses.
- the portion of the strap 170 that contacts the plantar surface of the foot may have a first thickness
- the edges of the strap that engage the slots may have a second thickness that is less than the first thickness.
- a second, interchangeable strap may be provided having a third thickness in the portion of the strap that contacts the plantar surface of the foot, while having the same second thickness along the edges.
- the third thickness may be less than or greater than the first thickness and the second thickness along the edges may be less than the third thickness. In this manner, the dorsiflexion may be adjusted by the use of different straps.
- FIG. 17A An alternate embodiment of the lower wing portion 132 is shown in FIG. 17A .
- two slots 134 are provided in each of the lower wing portions 132 , for receiving the ends of a dual strap 190 , as shown in FIGS. 17B and 17C .
- the dual strap 190 has first and second strap portions 192 , 194 combined with a connecting portion 195 .
- the first and second strap portions 192 , 194 may be formed from an inelastic, non-stretch fabric, such as woven nylon.
- the first and second strap portions 192 , 194 may each include hook and/or hook receiving material at either end thereof.
- the connecting portion 195 may be formed from a somewhat flexible or stretchy material, such as a urethane foam, or neoprene, or any other suitable material, in order to provide a comfortable fitting surface for the plantar surface or to conform to the convex shape of the plantar surface of the user's foot.
- the connecting portion 195 may be provided with hook and/or hook receiving material so that the ends of the first and second strap portions 192 , 194 may be connected thereto.
- any of the straps utilizing gel pads or bladders may be utilized with any dorsal splint disclosed herein.
- FIG. 18 An embodiment of a hybrid strap 1800 for use with a dorsal splint is shown in FIG. 18 .
- the hybrid strap 1800 is formed from a layer of flexible material 1810 which may be a thin layer of flexible material such as urethane foam or neoprene.
- the layer of flexible material 1810 has or defines a first width, which may be uniform or non-uniform.
- Strips 1820 of non-stretch material such as woven nylon having widths that are less than the width of the layer of flexible material 1810 are provide along the length of the layer of flexible material 1810 .
- the length of the hybrid strap is fixed.
- the non-stretch material can be shorter than stretch material so it only limits the overall stretch of the strap.
- the materials may have non-linear shapes (half moon, etc.) in order to vary the strap stretch across the width of the strap.
- the strips 1820 and the layer of flexible material 1810 are connected together in any suitable manner, such as by sewing or adhesive.
- the strips 1820 may aligned along the edges of the layer of flexible material 1810 , or offset from the edges. In this manner the lengthwise stretch of the strap is limited, and the length of the strap is fixed.
- the width of the strap 1800 is varied by the flexibility of the layer of flexible material 1810 .
- a more comfortable strap is provided that maintains the splint in position on the foot or calf with a consistent strength, due to the fixed strap length, is provided.
- Hook and/or loop material is provided along the layer of flexible material 1810 .
- Fasteners of hook and/or loop material 1830 are provided along the width at each end of the layer of flexible material 1810 .
- the fasteners may also be of non-stretch material, so that the ends of the strap 1800 may be easily passed through slotted portions in the dorsal splint.
- the strap 1800 may be utilized in any of the embodiments of a dorsal splint discussed herein.
- the strap 170 may be a thermoformed padding strap.
- the strap 170 includes foam 176 , non-stretch unbroken loop material 174 on one side, and stretch material 180 on the other side where a pattern is formed.
- the thermoformed side 180 is positioned against the skin, thus providing cushioning.
- the strap 170 has a defined and limited length; however, the cushioning of the foam 176 allows conformity of the strap 170 against the foot.
- Holes may be strategically placed (where the pad thickness is completely knocked down) on the thermoformed area to provide breathability.
- FIGS. 20A-C A further embodiment of a distal strap assembly 2060 for use with a dorsal splint 2000 is shown in FIGS. 20A-C .
- a flexible edge overmold 2038 extends around and encompasses the periphery of the dorsal splint 2000 .
- Slots 2034 in the lower portion of the dorsal splint 2000 provide attachment points for straps 2070 of the strap assembly 2060 .
- the strap assembly 2060 also includes a distal bottom piece 2080 that has a width W that is as large as the average male's foot for preventing Morton's neuroma, a noncancerous (benign) growth of nerve tissue that can develop in a nerve of the foot, often between the third and fourth toes.
- the condition involves a thickening of the tissue around one of the digital nerves leading to the toes.
- the distal bottom piece 2080 includes two outer layers 2082 of soft material that are secured to each other at least around two or three edges in order to form a pocket or pouch 2086 therebetween.
- a cushion or foam layer 2084 is also provided within the pouch 2086 towards the proximal outer layer 2082 .
- the cushion layer 2084 is secured at its edges to at least one of the outer layers 2082 .
- At least one substantially rigid stay or insert 2090 may be inserted into the pouch 2086 in order to provide structural support to the distal bottom piece 2080 and the plantar surface of the foot, as shown in FIG. 20B .
- the stay or insert 2090 may be made from any of the above mentioned materials.
- FIG. 20C in an alternate configuration, two stays or inserts 2090 are provided into the pouch 2086 , which may separate the two stays or inserts 2090 via a seam 2092 that extends the length of the distal bottom piece 2080 .
- the insert 2090 may be cut down the middle in order to reduce the size of the packaging required for the dorsal splint 2000 .
- Attachment points in the form of D-rings 2088 are provided along the sides of the distal bottom piece 2080 for engagement with the straps 2070 .
- one end of each strap 2070 engages a respective slot 2034 in the dorsal splint 2000 and the straps 2070 pass through a respective D-ring 2088 .
- the other ends of the straps 2070 wrap around the proximal surface of the lower portion of the dorsal splint 2000 .
- the straps 2070 may thus engage each other to complete the attachment.
- patches of hook or hook receiving material such as those shown in FIG. 2A may be provided on or embedded in the proximal surface of the lower portion of the dorsal splint 2000 so the other ends of the straps 2070 may be anchored thereto.
- the insert piece 2090 can be removable depending on the user's need. Alternatively, the insert piece 2090 or pieces may be retained in the pocket or pouch 2086 in a manner similar to those previously discussed.
- FIGS. 21A-21C another embodiment of a splint member 2100 is shown.
- the splint member 2100 includes many of the features belonging to other embodiments described herein including a substantially rigid intermediate portion 2102 surrounded by an edge overmold 2104 and living hinges 2108 . These features may be similar to those described in connection with the basic embodiment of FIGS. 1A-1E .
- the splint member 2100 in a variation of other embodiments described herein, includes an aluminum stay 2106 (depicted by dashed lines) which is preferably embedded or encased within the intermediate portion 2102 .
- the aluminum stay 2106 is preferably bendable at bend area 2118 along with the intermediate portion 2102 in order to custom-fit or modify the therapeutic angle of the splint member 2100 .
- the stay 2106 effectively retains its bent shape so as to maintain its shape and the shape of the intermediate portion 2102 . It is only when the splint member 2100 is not in use or being worn that one may modify the shape of the splint member 2100 .
- the splint member 2100 may be bent from an original splint member shape 2128 A to a modified splint member shape, as exemplified by 2128 B.
- the splint member 2100 generally bends at or around the bend area 2118 , as shown in FIG. 21A .
- the intermediate portion 2102 defines a plurality of locating apertures 2124 which reveal the location of the stay 2106 located within the intermediate portion 2102 .
- the intermediate portion 2102 defines a recessed portion 2119 located around the bend area 2118 which facilitates and indicates the bending of the stay 2106 .
- Other apertures may be located on the intermediate portion to further reveal the stay 2106 and to reduce weight of the intermediate portion 2102 .
- the intermediate portion 2102 defines an upper neck 2103 and a lower neck 2105 , and a bulbous portion 2107 .
- the upper and lower necks 2103 , 2105 reduce the material of the intermediate portion 2102 and minimize extension of the rigid splint material over the foot and ankle.
- the edge overmold 2104 defines flap portions 2109 , 2111 defined by larger portions of material defining the edge overmold thereby providing greater cushioning along the foot and ankle corresponding to such flap portions.
- the edge overmold therefore has sections of greater size, defined by length, width or thickness, located along the length of the rigid splint member.
- the overmold edge sections may be tailored in size according to locations of the foot and ankle to provide increased of cushioning.
- the intermediate portion 2102 forms an opening 2110 which corresponds to an opening 2130 formed within the stay 2106 .
- These corresponding openings 2110 , 2130 allow for one to identify if the stay 2106 is properly aligned with the intermediate portion 2102 .
- a recessed portion 2114 is located on the bulbous portion 2107 and surrounds the opening 2110 , and allows for the location of a fastener material, such as a loop fabric, to be inserted therein.
- the geometry of the bulbous portion 2107 provides a greater area to secure fastener material and corresponding straps.
- the stay 2106 is embedded within the intermediate portion 2102 , it is evident from FIGS. 21B and 21C that the stay 2106 may slightly bulge along lines 2122 of the intermediate portion 2102 . Further, cross-tabs 2120 may be molded or applied to the posterior side of the intermediate portion 2102 for the location of a fastener material, such as a hook fabric to be inserted therein.
- FIGS. 21A-21B Another feature of the embodiment of FIGS. 21A-21B is the provision of venting through slots 2116 , 2126 .
- These slots 2116 , 2126 are particularly advantageous when strapping is provided with the splint member 2100 so as to allow for adequate ventilation through the straps and the splint member.
- the slots further reduce material of the intermediate portion, and may be combined with recesses 2112 so as to minimize the weight of the splint member.
- the slots or recesses may be provided at a plurality of locations of the splint member and are not limited to the arrangement shown herein.
- the holes 2116 these are provided to locate and stabilize the stay 2106 in place during the molding process.
- the recesses 2112 may extend through the entirety of the splint member 2100 so as to allow for better breathability, as in the slots 2116 , 2126 , may be provided to reduce weight of the splint member 2100 , or can be provided for ornamental purposes.
- FIGS. 22A-22D exemplify a strap system 2200 which may be used in combination with embodiments of splint members 2202 described herein.
- This strap system 2200 is provided to snugly secure the splint member 2202 to the foot, ankle and calf portions of the wearer. Padding is provided along with the strapping to more comfortably and stably connect the splint member to the wearer.
- the strap system 2200 includes an ankle portion 2204 and a toe and plantar portion 2206 which are connected by a bridge portion 2208 .
- a calf portion 2210 extends from the ankle portion 2204 .
- An interior padding liner 2224 may be secured to the posterior surface of the splint member 2202 so as to cushion the foot and leg when the strap system 2200 tightens the splint member 2202 against the foot and leg.
- the interior padding may be of any type described herein, such as a thermoformed padding having localized areas of different degrees of compressibility corresponding to different parts of the foot, ankle and leg, or a continuous padding having generally uniform compressibility and consistent thickness.
- the ankle portion 2204 includes a heel stirrup 2222 which secures the strap system 2200 to the heel and under the foot.
- the ankle portion 2204 includes opposed straps 2225 , 2226 that secure opposed ends of the ankle portion 2204 over the anterior surface of the splint member.
- the ankle portion 2204 also includes generally stretchable straps 2231 , 2233 connecting to the padding liner 2224 and the straps 2225 , 2226 .
- the stretchable straps 2231 , 2233 permit adjustment of the straps 2225 , 2226 to the splint member, and also further retain the splint member on the ankle when the straps 2225 , 2226 are adjusted.
- the splint member may define a recessed portion, as in the recess 2114 in FIG. 21A , which accommodates a hook and loop material and secures to corresponding hook and loop material on the strap 2226 .
- a strap locator 2234 may be located on the splint member 2202 to retain the straps in a position relative to the splint member 2202 (i.e., the splint member may be formed from plastic upon which the straps may slide).
- the calf portion 2210 includes opposed tabs 2215 , 2216 securing to slots 2230 which are formed on the splint member 2202 .
- the tabs 2215 , 2216 and locations on the calf portion 2210 fasten to one another via fasteners, such as with corresponding hook and loop material.
- the ankle portion 2204 connects to the toe portion 2206 via the bridge portion 2208 .
- the bridge portion 2208 may be formed from a stretchable material so as to accommodate movement of different portions of the leg and foot and different foot sizes.
- the bridge portion 2208 may be substantially non-stretchable so as to maintain the ankle and toe portions 2204 , 2206 in close-relationship. The selection of the bridge portion material thus will depend on the activity of the wearer and the intended treatment served by the splint member and the strap system.
- the sleeve 2230 and the edging 2232 may be secured to the splint member 2202 by suitable fasteners such as hook and loop material.
- the toe portion 2206 includes an angled pull defined by stitching or divider 2227 which joins two opposing ends 2221 , 2223 of each of corresponding straps 2212 , 2214 .
- stitching or divider 2227 which joins two opposing ends 2221 , 2223 of each of corresponding straps 2212 , 2214 .
- the toe portion 2206 also includes a plantar pad 2228 .
- This plantar pad 2228 may be formed from a high density foam or rigid plastic sheet placed along the plantar portion of the toe portion 2206 where the metatarsals will be when the splint member worn.
- Portions of the plantar pad 2229 may comprise island pads that have increased areas of compressibility or are distinguished from other areas on the basis of surface area or other geometry in order to accommodate the corresponding region of the foot.
- the plantar pad is included to provide rigidity to avoid pressure points on the heads of the metatarsal joints so as to prevent Morton's neuroma.
- the toe portion 2206 further includes openings 2218 formed on both straps 2212 , 2214 so as to provide pressure relief on the side of the foot when the strap system 2200 is tightly secured to the leg and foot. This pressure relief on the side of the foot also assists in preventing Morton's neuroma.
- the toe portion 2206 includes a toe stopper 2220 connecting or securable to the front end of the sleeve 2230 and the inner padding liner 2224 .
- the toe stopper 2220 provides a visual guide for proper application of the splint member to the foot.
- the splint member is found to be more functional when the bottom end of the splint member is placed close to the end of the foot.
- the toe stopper 2220 visually guides the wearer to maintain the toes from passing through or inadequately approaching the end of the splint member during application.
- the toe stopper 2220 is positioned to maintain the angle of the flexion of the foot by maintaining better contact with the shell and foot.
- the strapping system 2200 may be formed in the manner of any of the other strap embodiments described herein, and is not limited to the padding and individual straps shown herein.
- the disclosed embodiments of a dorsal splint and straps for use with a dorsal splint provide great flexibility for dorsal splints having better and more comfortable fit, improved ability to hold a functional angle of the foot in flexion for optimum therapeutic value, and for dorsal splints that may have lower profiles for retail display, storage, and traveling.
- the size of the dorsal splint and the components thereof can be adjusted so that different users having different sized legs, ankles, and feet may benefit from the present design.
- the width, thickness and length of the splint member may be varied to accommodate different sized users.
- many of the improvements disclosed herein, such as the overmold and the living hinge, allow a single size dorsal splint to comfortably fit a larger number of different sized users.
Abstract
Description
- This application claims the benefit of priority from U.S. provisional application No. 60/924,571 filed on May 21, 2007, and U.S. provisional application No. 60/996,917 filed on Dec. 11, 2007.
- The present invention relates generally to the field of prosthetic and orthopedic devices and more particularly to a dorsal splint for use at night to treat plantar fasciitis and other foot and heel related disorders.
- Plantar fasciitis is a common problem among people who are active in sports, particularly runners. It is also a prevalent problem for overweight/obese patients and people who remain standing for long periods of time. It is an inflammation of the plantar fascia, the thick tendon on the bottom of the foot which is attached to the heel bone (the calcaneus) and fans forwardly to the toes. The plantar fascia maintains the arch of the foot and is placed in tension during walking and running. Any sport where the foot lands repeatedly, such as running or jogging, can overload the plantar fascia and produce an inflammation, usually at the point where the fascia is attached to the heel bone. The reaction of the heel bone to the inflammation is often to produce spike-like projections of new bone called heel spurs. Both the initial inflammation of the fascia and walking on the heel spurs can cause sharp pain.
- A broad range of treatments are prescribed for plantar fasciitis, depending upon the severity of the injury and length of time the condition has existed. Among the commonly used treatments are rest, ice, anti-inflammatory/analgesic medication, heel pads, taping, physical therapy and surgery.
- Another form of treatment for the condition is the wearing of a splint or orthosis which maintains the foot in a slightly dorsiflexed condition, so that the plantar fascia is maintained in a neutral (90 degree) or a stretched (below 90 degree) position. Typically, such a splint is prescribed for wear at night while the patient is in bed. This maintains a slight stretch of the fascia when it would otherwise be allowed to shorten while the leg and foot muscles are relaxed during sleep. These so-called “night splints” have taken the following forms.
- A first type of a night splint consists of a thick, rigid plastic footbed and a pair of rigid plastic bars extending vertically upward on either side of the footbed. A flexible fabric sheath for encircling the foot and leg is also attached to the foot bed, the sheath being open along its front so that the patient may put on the entire appliance like a boot. The footbed underlies the entirety of the patient's foot, and the bars pass along either side of the ankle and lower leg. Straps are attached to the footbed and the bars, and are fastened around the foot and lower leg respectively to secure the splint in position and so maintain the patient's foot in the proper, slightly flexed orientation. Such splints are quite heavy and bulky, and it is common for patients to complain that they are uncomfortable and interfere with sleep.
- A second type of a night splint is a generally L-shaped brace made of a relatively thin layer of molded plastic such as polypropylene. The forward-facing surface of the brace is substantially concave to fit around the rear and sides of the patient's calf, ankle and heel. The bottom portion of the “L” extends forwardly beneath the sole of the foot. These splints generally are lined with padding made from a foam or synthetic pile, and are held in place on the lower leg and foot by means of adjustable straps, typically secured with hook-and-pile fasteners. While such splints are less bulky than the first type of prior art splint, some patients still complain that they are uncomfortable, particularly when worn in bed. The rigid portion of the splint contacts the rear and sides of the heel, ankle and lower leg, and so comes between the patient and the bed mattress during most sleeping postures. The splints may be so uncomfortable that patients cannot get a normal night's rest or may discontinue use of the splint before it has achieved the desired therapeutic result.
- A third type of orthopedic device for the treatment of plantar fasciitis is known as a foot sling. The foot sling consists of a wide band of flexible, padded material which encircles the patient's lower leg just below the knee, and a flexible strap which passes beneath the ball of the patient's foot and is secured at its ends to the upper leg band on either side of the leg. The strap is tightened to pull upwardly on the foot and so maintain it in a dorsi-flexed position. The foot sling may be uncomfortable to some patient's since the upper leg band must be tight enough around the leg to prevent it from slipping downward when the strap is tightened.
- A fourth type of a night splint consists of a rigid plastic, generally “L” shaped brace configured to fit along the dorsal surfaces of the user's foot, ankle and lower leg (a “dorsal” splint). A cloth cover may be provided over each end of the “L” shape in order to provide some interface between the rigid brace and the user's skin, and straps that encircle the brace as well as the foot, ankle, and lower leg, may be connected to the cloth cover to tighten the brace in position. While this type of brace solves some of the problems associated with the previously discussed devices, there still exist issues of patient comfort, as well as the comfort of any person sharing a bed with the patient wearing such a brace. In order for the brace to properly function, it must be substantially rigid, such that the extending portions of the brace will not closely conform to the user's foot, ankle, and lower leg. Thus the brace will not have a good and secure fit. Further, due to the typical injection molding formation of the brace, the edges of the brace may be sharp and cause irritation. The cloth covers do not provide adequate protection from such irritation, which is further exasperated by the loose fit of the brace, or if the edges are flexible enough to be bent, they may dig into the skin even more. These edges can cause irritation to both the user, and to any person sharing the bed with the user.
- Thus, there is a need for a dorsal splint that reduces the irritation to a user due to bulky and heavy braces, loose fitting braces, and braces having edges that can cause points of irritation. Further, there is a need for a more comfortable, better fitting brace. Accordingly, a dorsal splint is provided that has a low profile, is less bulky and is lightweight, provides a good and comfortable fit, and solves other problems associated with previous splint designs.
- Exemplary embodiments of a dorsal splint are provided for treating plantar fasciitis that are lightweight, low profile, provide a better and more comfortable fit, and further reduce or eliminate irritation due to edges causing points of irritation.
- One embodiment of a dorsal splint includes a substantially rigid splint member having upper, intermediate, and lower portions shaped and configured to be worn on the dorsal aspects of the lower leg, including the shin, dorsal surface of the ankle, or “dorsum,” and the dorsal surface of the foot. A flexible edge overmold made from a compliant or flexible material is provided to encase at least an outer edge of the upper portion, and may be provided to encase the edges of the intermediate and lower portions in any desired configuration.
- The flexible edge overmold reduces irritation caused by hard or sharp edges of the substantially rigid splint member and further allows the substantially rigid splint member to at least partially conform to the dorsal aspects of the lower leg. A flexible inner member may be utilized in conjunction with the substantially rigid splint member in order to provide a compliant interface between the dorsal splint and the dorsal aspects of the lower leg.
- In an exemplary configuration, the flexible inner member is removably attached to the upper, intermediate and lower portions and has first and second surfaces, and proximal and distal ends. The second surface of the flexible inner member defines at least one padded portion and the first surface of the flexible inner member has a hook receiving material. A pouch having a proximal surface including hook receiving material is formed along the first surface along the distal end of the flexible inner member such that the lower portion is received within the pouch. The posterior surfaces of the intermediate and upper members carry hook material for engaging the hook receiving material of the first surface of the flexible inner member. Suitable strap assemblies may be utilized to retain the dorsal splint on the lower leg.
- In a variation, the dorsal splint includes a strap in the form of a “FIG. 8,” such that a single strap defines a loop for tightening around the foot. The “FIG. 8” strap includes crossing over itself on a proximal surface of the intermediate portion of the substantially rigid splint member, and forming another loop for tightening around the calf. The strap configuration allows for the pulling on one end of the strap to cause both loops to tighten simultaneously.
- In another variation, the dorsal splint includes at least one slot formed in each of first and second wings of the upper portion for receiving respective ends of a strap, wherein the flexible edge overmold encompasses the slots.
- In a further variation, the distal end of the flexible inner member includes an elastic fabric member secured to a first and second edge along the distal end of the inner flexible member. A distal strap is secured to the distal surface of the elastic fabric member. A proximal strap removably engages the slots in the upper portion and each of the proximal and distal straps may carry both hook material and hook receiving material.
- In an alternate configuration, the flexible inner member has first, intermediate, and second layers, wherein the first layer defines a hook receiving material; the intermediate layer is a foam layer; and the second layer encases the intermediate foam layer.
- In another variation of the dorsal splint, the flexible edge overmold encases an outer edge of each of the upper, intermediate, and lower portions. At least one slot is formed in first and second wings of the upper portion for receiving respective ends of a strap, and at least one slot is formed in first and second sides of the lower portion for receiving respective ends of a strap. The flexible edge overmold also encompasses the slots.
- In a related variation, the lower portion also includes first and second wings having slots formed therein for receiving respective ends of a strap. Similar to the previous variation, the flexible edge overmold encompasses the slots.
- In an alternate strap configuration, the distal strap includes a first thickness in a middle portion, and a second thickness near first and second ends, where the first thickness is larger than the second thickness. The straps are pulled from two sides and thus, the dorsal splint will be properly positioned in the middle of the limb, as opposed to tilting to one side or the other when being pulled from a single side only and wrapped around the limb.
- In another variation, an inflatable bladder is positioned between the proximal surface of the distal strap and the plantar surface of a foot. The bladder may be used to adjust the amount, or angle, of dorsiflexion provided by the splint.
- In another configuration, a pad is positioned between the proximal surface of the distal strap and the plantar surface of a foot. The pad may be any suitable pad, such as a gel pad, and may provide therapeutic relief, such as heating or cooling. Different sized pads may be interchangeably provided to adjust the amount, or angle, of dorsiflexion provided by the splint.
- In an alternate configuration, each of the proximal and distal straps includes a first layer of flexible material having a first width and a second layer of non-stretch material having a second width that is less than the first width. In this manner a more comfortably fitting, flexible edge strap is provided.
- In another strap variation, each of the proximal and distal straps has a first layer of flexible material having a first width and first and second strips of non-stretch material having a second width that is less than the first width. The first and second strips of non-stretch material are positioned along first and second edges of the straps. In this manner the length of the strap is fixed, however the flexible layer may stretch and conform more closely to provide a more comfortable fit. Each of the proximal and distal straps may also have third and fourth strips of non-stretch material positioned along respective first and second ends of the straps so that the ends of the straps may more easily pass through slots in the dorsal splint.
- In another strap variation, each of the proximal and distal straps includes first, intermediate, and second layers, wherein the first and second layers are formed from hook receiving material and are positioned on respective sides of the intermediate layer, and the intermediate layer is a foam layer to provide for a more comfortable, form fitting strap.
- In another embodiment, the dorsal splint includes an upper portion shaped and configured to engage the dorsal aspect of the leg. First and second living hinges are positioned along first and second sides of the upper portion from which first and second wing portions extend. The lower portion also includes first and second living hinges positioned along first and second sides of the lower portion from which first and second wing portions extend. The living hinges allow the wing portions to flex about the hinges in order to better conform to the leg of the user. When the dorsal splint is removed from the leg, the living hinges cause, the wing portions to spring back to their unflexed positions.
- In another configuration, the dorsal splint has a flexible inner member to which the overmold and the substantially rigid splint member are integrally molded.
- In an alternate configuration, the dorsal splint includes an upper portion and a lower portion. The upper and lower portions are rotatably connected via an intermediate portion connecting the upper and lower portions in a rotatable manner.
- In a further embodiment, the dorsal splint has a flexible member having at least one longitudinal pocket for receiving a substantially rigid splint member.
- In another embodiment, the dorsal splint includes a substantially rigid splint member. Compliant or flexible upper and lower wing portions are attached to the substantially rigid splint member at upper and intermediate or lower portions. Thus, the upper and lower wing portions provide a comfortable, conforming fit, while the substantially rigid splint member defines the structural support for the lower leg.
- In another embodiment, the dorsal splint comprises a flexible member encasing first and second substantially rigid splint members. Each substantially rigid splint member has an upper portion being shaped and configured to engage the dorsal aspect of the leg and an intermediate portion being shaped and configured to engage the dorsum. The flexible member further includes at least one pocket for receiving a substantially rigid lower splint member being shaped and configured to engage the dorsal surface of the foot.
- In another embodiment, the dorsal splint has a flexible member encasing first and second substantially rigid splint members. The flexible member further defines at least one pocket located between the first and second splint members for receiving a substantially rigid third splint member.
- The numerous advantages, features and functions of the various embodiments of a dorsal splint will become readily apparent and better understood in view of the following description and accompanying drawings. The following description is not intended to limit the scope of the dorsal splint, but instead merely provides exemplary embodiments for ease of understanding.
-
FIG. 1A is a side perspective view of an embodiment of a dorsal splint. -
FIG. 1B is a rear view of the embodiment of a dorsal splint shown inFIG. 1A . -
FIG. 1C is a front view of an inner flexible member for use with the embodiment of a dorsal splint shown inFIG. 1A . -
FIG. 1D is a front view of the embodiment of a dorsal splint shown inFIG. 1A including the inner flexible member shown inFIG. 1C . -
FIG. 1E is a front view of the embodiment of a dorsal splint, similar to that shown inFIG. 1D , and including a proximal strap. -
FIG. 2 is a perspective view of a dorsal splint according to another embodiment. -
FIG. 2A is a perspective view of a dorsal splint according to an alternate configuration. -
FIGS. 3A-D are various views of embodiments of a “FIG. 8” strap in use with an embodiment of a dorsal night splint. -
FIGS. 4A-E are various perspective, side, and rear views of another embodiment of a dorsal splint. -
FIG. 5 is a side view of another embodiment of a dorsal night splint. -
FIGS. 6A-B are various front views of another embodiment of a dorsal night splint. -
FIG. 7 is a front perspective view of another embodiment of a dorsal night splint. -
FIGS. 8A-C are various front perspective views of another embodiment of a dorsal night splint. -
FIG. 9 is a bottom perspective view of an embodiment of a strap for use with various embodiments of a dorsal splint. -
FIGS. 10A-B are various perspective and front views of another embodiment of a dorsal splint. -
FIG. 11 is a front perspective view of another embodiment of a dorsal splint. -
FIG. 12 is a front view of another embodiment of a dorsal splint. -
FIGS. 13A-C are various front and side perspective views of another embodiment of a dorsal splint. -
FIG. 14 is a bottom perspective view of another embodiment of a dorsal splint. -
FIG. 15 is a bottom perspective view of another embodiment of a dorsal splint. -
FIG. 16 is a bottom perspective view of another embodiment of a dorsal splint. -
FIGS. 17A-C are various views of another embodiment of a dorsal splint and an associated strap. -
FIG. 18 is a side view of an embodiment of a strap for use with various embodiments of a dorsal splint. -
FIG. 19 is a bottom perspective view of an embodiment of a strap for use with various embodiments of a dorsal splint. -
FIGS. 20A-C are various views of an alternate strap configuration for use with various embodiments of a dorsal splint. -
FIG. 21A is a perspective view of another embodiment of a splint member. -
FIG. 21B is sectional view taken along line XXIB-XXIB fromFIG. 21A . -
FIG. 21C is a posterior view of the embodiment shown inFIG. 21A . -
FIG. 21D is a schematic view showing different shape configurations ofFIG. 21A . -
FIG. 22A is an elevational view showing another embodiment of a splint member having a strapping system. -
FIG. 22B is a plan view showing the embodiment ofFIG. 22A . -
FIG. 22C is a plan view showing the embodiment ofFIG. 22A in an open configuration. -
FIG. 22D is a detailed schematic view showing the toe portion ofFIG. 22C in an open configuration. - In the various figures, similar elements are provided with similar reference numbers. It should be noted that the drawing figures are not necessarily drawn to scale, but instead are drawn to provide a better understanding of the components thereof, and are not intended to be limiting in scope, but rather provide exemplary illustrations.
- The dorsal splint of this disclosure is designed for use by patients while sleeping at night. Of course, the dorsal splint is not limited to being worn at night, but may be worn at any suitable time. For example, any time that a user is sitting down, or otherwise is placing no pressure on the foot, the dorsal splint may be worn.
- The dorsal splint is configured and arranged to be worn on either one of the left or right feet, ankles, and lower legs. Accordingly, the description will refrain from describing the dorsal splint with respect to left and right sides, or even lateral and medial sides, since a single dorsal splint may be worn on either the right or left foot. The dorsal splint is to be worn against the dorsal, or top, surfaces of the foot, ankle, and the foreleg, or shin. Any suitable retention mechanism may be used to retain the dorsal splint in proper position on the user.
- The dorsal splint is configured to place the foot in dorsiflexion while it is being used by a patient. Thus, the plantar fascia is maintained in a dorsi-flexed position in circumstances where the foot might otherwise naturally tend towards plantarflexion. Accordingly, pain and tearing of the plantar fascia are avoided in situations where the shock of placing the foot in dorsiflexion after prolonged periods of plantarflexion, such as while standing up after a night of sleeping, would otherwise occur.
- While not solely limited to use during sleeping, the majority of dorsal splints are worn to bed during the night. Since dorsal splints must be substantially rigid in order to maintain the foot in dorsiflexion, the use of a dorsal splint for prolonged periods of time, for example an eight hour sleeping period, can cause discomfort to the wearer. Additionally, a sleeping partner of the user may also have contact with the dorsal splint, and may also suffer discomfort from rigid surfaces and edges.
- A number of embodiments of a dorsal splint are disclosed herein to provide an improved dorsal splint that alleviates or eliminates the above described, and other, shortcomings of the previous splints for treating plantar fascia. These embodiments include improvements in the structure of a dorsal splint and some of the different types of retention mechanisms that may used therewith.
- For further ease of understanding the dorsal splint as disclosed herein, a description of a few terms is necessary. As previously stated the term “dorsal” has its ordinary meaning and as used herein refers to the top surfaces of the foot, ankle and foreleg or shin. As used herein, the term “plantar” has its ordinary meaning and refers to a bottom surface, such as the bottom of a foot. As used herein, the term “proximal” has its ordinary meaning and refers to a location that is closer to the heart than another location. Likewise, the term “distal” has its ordinary meaning and refers to a location that is further from the heart than another location. The term “posterior” also has its ordinary meaning and refers to a location that is behind or to the rear of another location. Lastly, the term “anterior” has its ordinary meaning and refers to a location that is ahead of or to the front of another location.
- One embodiment of a substantially
rigid splint member 110 of adorsal splint 100 is shown inFIG. 1A . The substantiallyrigid splint member 110 is shown in a stand-alone manner for ease of illustration. Additionally, the substantiallyrigid splint member 110 illustrated inFIG. 1A may be used in any number of configurations and embodiments utilizing different padding or retention mechanisms. In order to provide a more comfortable fit, thesplint 100 has aflexible edge overmold 138 and living hinges 136 to reduce irritation points and allow thesplint 100 to better conform to the user's limb. - Accordingly, the substantially
rigid splint member 110 comprises three portions, anupper portion 112, anintermediate portion 118, and alower portion 124. Each portion is shaped and configured to engage a respective portion of the wearer's body. For example, theupper posterior surface 116 is generally concave in shape to accommodate the fore leg, or shin. The shape of the concavity may be uniform or non-uniform along theposterior surface 116. In order to provide a low profile dorsal splint, the upperanterior surface 114 may have a contoured shape to match the shape of theupper posterior surface 116. Theupper portion 112 may have any suitable thickness in order to provide the appropriate rigidity and support to thedorsal splint 100. The thickness may be uniform or non-uniform across the width, and along the length of theupper portion 112. - The
upper portion 112 further has anterior 114 and posterior 116 surfaces shaped and configured to engage the dorsal aspect of the leg. Theupper portion 112 further includes first andsecond wing portions 130 extending respectively from first and second sides of theupper portion 112 in order to extend the width of theupper portion 112 so that it may wrap around the dorsal surface of the foreleg. - The
intermediate portion 118 is integrally formed with theupper portion 112 and includes anterior 120 and posterior 122 surfaces shaped and configured to engage the dorsum. As an alternative, theintermediate portion 118 may be formed as a separate piece from theupper portion 112. The distinct pieces may be connected to each other in any suitable manner, such as by welding or adhesives. - The
intermediate portion 118 is shaped and configured to engage the dorsal aspect of the user's ankle. Accordingly, like theupper portion 112, theposterior surface 122 of theintermediate portion 118 has a substantially concave shape to accommodate the user's ankle. Similarly to theupper portion 112, the shape of the concavity may be uniform or non-uniform. - The width of the
intermediate portion 118 may vary along its length in order to provide an appropriate curvature to accommodate the various protrusions of the ankle joint. The thickness of theintermediate portion 118 may also be uniform or non-uniform. - The proximal end of the
intermediate portion 118 is merged with the distal end up theupper portion 112 and provides a smooth transition such that a point of irritation is not created at the juncture. Of course, if the intermediate 118 andupper portions 112 are separately formed and joined together, any appropriate surface treatment, such as sanding, grinding, or polishing, may be utilized to provide a smooth transition. - The
lower portion 124 is integrally formed with theintermediate portion 118 in order to form a single substantiallyrigid splint member 110. Proximal 126 and distal 128 surfaces are provided on thelower portion 124. As an alternative, thelower portion 124 may be formed as a separate piece from theintermediate portion 118. The distinct pieces may be connected to each other in any suitable manner, such as by welding or adhesives. - The
lower portion 124 is shaped and configured to engage the dorsal aspect of the user's foot. Thus, thedistal surface 128 of thelower portion 124 has a substantially concave shape. A flared distal end portion is provided to avoid rigid corners that would dig into the flesh of the dorsal surface of the user's foot. As with the upper 112 and intermediate 118 portions, the concavity and thickness of thelower portion 124 may be uniform or non-uniform. - As shown in
FIG. 1A ,slots 134 for straps are also provided along either edge of thelower portion 124. Theslots 134 may have any suitable length in order to accommodate straps of different sizes. Such slots may also be used to reduce the weight of the substantiallyrigid splint member 110, even if a strap is not used directly with theslots 134 of thelower portion 124. Of course, if a strap is not to be used directly with slots in thelower portion 124, theslots 134 in thelower portion 124 may not be provided. Whether or notslots 134 are used, the straps are pulled from two sides and thus, thedorsal splint 100 will be properly positioned in the middle of the limb, as opposed to tilting to one side or the other when being pulled from a single side only and wrapped around the limb. - In a similar fashion as discussed above, the proximal end of the
lower portion 124 is merged with the distal end of theintermediate portion 118 in order to provide a smooth transition between the two portions. - The combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion may be in the range of 800 to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- The substantially
rigid splint member 110 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters. The substantiallyrigid splint member 110 may be formed in any suitable manner, for example injection molding, casting, or curing. - As shown in
FIGS. 1A and 1B , “living hinges” 136 are provided in theupper portion 112 between a main a section of theupper portion 112 and theupper wing portions 130 in order to provide flexibility to thewing portions 130 so that thesplint 100 may better conform to the user's limb. The livinghinge 136 is a thin section of material between the main section of theupper portion 112 and theupper wing portion 130. The livinghinge 136 has a thickness that is less than the thickness of the rest of theupper portion 112 or theupper wing portions 130. Since theliving hinge 136 has a smaller thickness than theupper portion 112 or theupper wing portions 130, thewing portions 130 and theupper portion 112 are able to flex with respect to each other around theliving hinge 136. - The
wing portions 130 and theupper portion 112 flex to conform to the user's lower leg via a strap. Thus, a better fit is accomplished between the dorsal splint and the user's leg. When the strap is removed, thewing portions 130 return to their unflexed position due to the action of the living hinges 136 in a manner that will be understood by the skilled artisan. - The specific construction of the
living hinge 136 is dependent upon the desired amount of flexing, and the direction of flexing. The actual thickness and shape of theliving hinge 136 is dependent upon the thickness of theupper portion 112 andupper wing portions 130. The livinghinge 136 may therefore be formed in any suitable shape, size and orientation, in order to provide the desired flexing characteristics. - For example, the living
hinge 136 may be provided by a recessed line or groove along theposterior surface 116 of theupper portion 112, and a protruding line or a recessed line or groove along theanterior surface 114 of theupper portion 112. The length of theliving hinge 136 may extend substantially along the entireupper portion 112 commensurate in length with theupper wing portions 130. Alternatively, the length of theliving hinge 136 may have any suitable length. The actual process of forming the living hinges 136 will be understood by a skilled artisan. - When the
dorsal splint 100 is in place on the user's leg, theupper portion 112 is retained in position against the leg, and theupper wing portions 130 are able to flex in order to more closely conform to the user's leg. In this manner, thedorsal splint 100 provides a better fit with the user's leg, and enables a more comfortable fit since thedorsal splint 100 more closely conforms to the shape of the user's leg. The living hinges 136 also aid in preventing thedorsal splint 100 from sliding off of the patient's limb, since the extendedupper wing portions 130 that (compared to a single rigid piece) to better conform to the shape of the leg when there is ankle movement. - As illustrated in
FIG. 1A , aflexible edge overmold 138 is provided for encasing an outer edge of at least theupper portion 112. Theovermold 138 shown inFIG. 1A encases an outer edge of both theupper portion 112 and theintermediate portion 118. Theflexible edge overmold 138 may be formed from any suitable material, such as a flexible plastic. Exemplary materials include thermoset polymers, such as solid polyurethane, or thermoplastic elastomers. - In order to provide a low profile brace, the thickness of the
overmold 138 may be the same as or smaller than theupper portion 112 or any other portion that theovermold 138 encases the edge of. The width of theovermold 138 may be any suitable width so as to provide a compliant interface between the substantiallyrigid splint member 110 and the user's skin. - In alternative embodiments, such as illustrated in
FIG. 1A ,slots 134 for receiving straps are provided in thewing portions 130 of theupper portion 112, and along the edges of thelower portion 124. As shown inFIG. 1A , theovermold 138 encompasses theslots 134 in thewing portions 130 of theupper portion 112. Lines of greater thickness may be provided coinciding with the living hinges 136 as a visual reference of the living hinges, or as an aesthetic element. These lines may also be provided in order to prevent cracks from forming in theovermold 138. - The
overmold 138 may be formed in situ by injection molding, or by curing in place. In order to aid with retaining theovermold 138 in place, the edge which it encases may have an irregular shape, such as a grooved edge or protruding edge, to provide the material of the overmold 138 a larger surface area for adhesion. Of course, the encompassing of theslots 134 by theovermold 138 also provides a larger surface area for adhesion between theovermold 138 and the portion to which it is connected. - The
overmold 138 provides a flexible interface between the rigid edges of the substantiallyrigid splint member 110 and the user's body. Thus, irritation due to the hard and sometimes sharp edges is reduced or eliminated. Accordingly, thedorsal splint 100 provides a more comfortable fit for the prolonged use during sleeping for both the user and any person sharing the same bed as the user. This feature is an improvement over conventional dorsal splints that do not provide adequate protection from the rigid, and sometimes sharp, edges of the dorsal splints. - As shown in
FIG. 1B , the groove orchannel 137 defining the living hinges 136 is provided along theposterior surface 116 of theupper member 112. Further, the livinghinge 136 defines arecess 139 formed between thewings 134 so as to facilitate bending of thewings 134 relative to theupper portion 112. According to this embodiment, theovermold 138 only partially encompasses theslots 134 on theposterior surface 116 of theupper member 112, in order to keep the recess or groove of theliving hinge 136 free of material so that theupper wing portions 130 may more freely flex. This configuration may be used with each embodiment described. Alternatively, although less desirable, theovermold 138 may partially encompass the groove or channel. - As shown in
FIG. 1C , fastening mechanisms, such as patches ofhook material 140, are provided. The patches are positioned on theposterior surfaces inner member 142 against theposterior surfaces Patches 140 may be of any suitable size and may be attached to theposterior surfaces - Alternatively,
patches 140 of hook material may be integrally injection molded with the substantiallyrigid splint member 110. Also, thepatches 140 may be of hook receiving material. Further yet, thepatches 140 may cover substantially the entire posterior surfaces 116, 122 of the upper 112 and intermediate 118 portions. It will be understood that, any suitable fastening mechanism, such as snap fasteners, may be provided in place of the patches ofhook material 140. - As shown in
FIG. 1C , the flexibleinner member 142 has substantially the same shape as the substantiallyrigid splint member 110. The flexibleinner member 142 acts as a compliant interface between a user's leg, foot, and ankle and the substantiallyrigid splint member 110. Accordingly, to aid with the reduction of irritation caused by the substantiallyrigid splint member 110, the flexibleinner member 142 may be slightly larger than the substantiallyrigid splint member 110. - As illustrated in
FIGS. 1C and 1D , the flexibleinner member 142 has first 144 andsecond surfaces 146, and proximal 148 and distal 150 ends. Thefirst surface 144 may carry or be made from hook receiving material. Alternatively, thefirst surface 144 may carry or be made from hook material. The hook receiving material may be broken or unbroken loop material formed by example from nylon. In this manner thefirst surface 144 is selectively removably fixed to theposterior surfaces - A
pouch 154 is provided on thefirst surface 144 along a portion of thedistal end 150 of the flexibleinner member 142 for receiving at least a portion of thelower portion 124. Thepouch 154 may be formed from any suitable material and may define aproximal surface 156 that carries or is made fromhook receiving material 158 for a purpose to be described below. Of course, any suitable fastening material or mechanism, such as hook material or snap fasteners may be provided. In an alternative configuration, the flexibleinner member 142 does not include thepouch 154, but instead is retained on thedorsal splint 100 via at least one additional patch ofhook material 140 that is positioned on the distal surface of thelower portion 124 in the same manner as discussed above. - In use, the
lower portion 124 of the substantiallyrigid splint member 110 is received within thepouch 154. The flared end portions of thelower portion 124 also help to engage the inner portions of thepouch 154 to assist with maintaining thelower portion 124 within thepouch 154. The first surface of the flexibleinner member 142 is then removably fastened to theposterior surfaces inner member 142 is retained on the substantiallyrigid splint member 110 so that thedorsal splint 100 may be placed upon the leg, ankle, and foot of the wearer. As an alternative to thepouch 154, further hook and hook receiving materials, or any other suitable fastening mechanism, such as snap fasteners, may be provided. Further, the flexibleinner member 142 may be non-removably connected to the substantiallyrigid splint member 110 by, for example, an adhesive. - The
second surface 146 of the flexibleinner member 142 includes or defines at least onepadding member 152. A plurality ofpadding members 152 of varying thickness may be provided in any suitable pattern along thesecond surface 146. For example, a thicker padded portion may be provided in the area of the intermediate portion in order to protect the bony protuberance of the dorsum. Alternatively, thicker padded portions may also be used to increase the angle of dorsiflexion. The padding may be a thermoform pad having a pattern that provides a “formfit.” This may be accomplished by utilizing various thicknesses throughout the pattern. Thesecond surface 146 may be a soft covering that is not receptive to receiving hook material. Of course, any suitable material or fabric will suffice. - In order to aid with placing the
dorsal splint 100 on the foot of the user, anelastic fabric member 160 is provided. Theelastic fabric member 160 has proximal 166 and distal 168 surfaces, as well as first 162 and second 164 ends connected to first and second edges along thedistal end 150 of the flexibleinner member 142. Theelastic fabric member 160 thus forms a loop that the distal portion of the foot is placed within in order to maintain thedorsal splint 100 in position while allowing for further adjustment and tightening. - The ends 162, 164 of the
elastic fabric member 160 may be connected to the flexibleinner member 142 in any suitable manner, such as by sewing, or by zipper closures. In an alternative embodiment, theelastic fabric member 160 may form a continuous loop that has one surface secured to thesecond surface 146 of the flexibleinner member 142. Accordingly, theelastic fabric member 160 may be an elastic band, or an elastic stockinette, as will be recognized by a skilled artisan. - A
distal strap 170 defining proximal 172 and distal 178 surfaces and first 182 and second 184 ends is connected to thedistal surface 168 of theelastic fabric member 160. The connection may be such that thestrap 170 andelastic fabric member 160 are sewn together around a surface, along multiple lines, or adhesively or otherwise connected. - As best seen in
FIGS. 1D , 1E, and 19, thestrap 170 includes first 174, intermediate 176, and second 180 layers. Theintermediate layer 176 may be an open or closed cell, compressed or thermoformed foam material. Suitable materials include, but are not limited to, polyurethane foams. Thus astrap 170 is provided that includes some cushioning, such that the strap will not dig into the flesh of the user and thus will not cause pain and discomfort. The flexibleinner member 142 may be formed in a similar tri-layer manner with thepadding 152 being formed in the same manner as theintermediate layer 176 of thestrap 170. - The first 174 and second 180 layers define the proximal 172 and distal 178 surfaces. The proximal 172 and distal 178 surfaces may both carry or be composed of hook receiving material. Patches of
hook material 140 may also be received along the first 182 and second 184 ends of thestrap 170. Of course, as previously discussed, the location of the hook material and the hook receiving material may be interchanged, and other fastening mechanisms, such as buckles or snap fasteners, may be provided. - Once the
dorsal splint 100 is located in position on the foot via theelastic fabric member 160, the first 182 and second 184 ends of thestrap 170 are folded up and over so that the patches ofhook material 140 engage thehook receiving material 158 of theproximal surface 156 of thepouch 154, or the hook receiving material of the strap surfaces 178. In this manner thelower portion 124 are tightened in position along the dorsal surface of the foot. During tightening, the straps are pulled from two sides and thus, thedorsal splint 100 will be properly positioned in the middle of the limb, as opposed to tilting to one side or the other when being pulled from a single side only and wrapped around the limb. - A second,
proximal strap 170, as shown inFIG. 1E , secures theupper portion 112 against the lower leg and shin of the user. Theproximal strap 170 may have the same construction as previously discussed with respect to thedistal strap 170. Each of the first and second ends of theproximal strap 170 are received inrespective slots 134 in theupper wing portions 130. Theproximal strap 170 extends from theslots 134 between theposterior surface 116 of theupper member 112 and thefirst surface 144 of the flexibleinner member 142 in order to encircle the user's leg. The patches ofhook material 140 on theproximal strap 170 are connected directly to the hook receiving material of the surface of thestrap 170 to tighten and fasten theproximal strap 170. Of course, any suitable alternate fastening mechanism may be utilized. - Given the above described construction, and in particular the living hinge, overmold, and padded flexible member and straps, the
dorsal splint 100 provides an improved and more comfortable fit for both the user and anyone sharing the bed of the user. - Of course, the
dorsal splint 100 may be utilized in numerous variations of the above described embodiment. For example, the substantiallyrigid splint member 110 may be used without the flexibleinner member 142, and may instead have proximal and distal straps associated with theslots 134 in the upper and lower portions. - As shown in
FIG. 2 , if the substantiallyrigid splint member 110 is utilized without the flexibleinner member 142, it may be desirable to provide theovermold 138 extending around the outer edge of thelower portion 124, as well as the upper 112 and intermediate 118 portions. As previously described, theovermold 138 may encompass theslots 134 in the upper 112 and lower 124 portions. - In order to aid with placing the dorsal splint on the user's foot, an elastic band or stockinette may be connected directly to the substantially
rigid splint member 110 in any suitable manner, such as by an adhesive. In the case that a stockinette is used, the stockinette may extend along only a portion of the substantiallyrigid splint member 110, for example, so as to engage only the plantar surface of the foot. Alternatively the stockinette may extend along the entire substantiallyrigid splint member 110 so as to engage the plantar surface of the foot, the heel, and the calf of a user. - An alternate configuration of a
dorsal splint 100 is shown inFIG. 2A . Thedorsal splint 100 has the same general configuration as previously discussed.Upper wing portions 130 are delineated from the maindorsal splint 100 via living hinges 136, in the exemplary manner that is discussed above. Thewing portions 130 includeslots 134 for receiving appropriate strap mechanisms therethrough, in a manner as discussed above. Aflexible edge overmold 138 is provided around the entire periphery of thedorsal splint 100. - In order to attach a distal strap thereto, such as any strap disclosed herein, for example in FIGS. 19 and 20A-C,
patches 140 of hook material are provided on or embedded in theproximal surface 126 of thelower portion 124 of thedorsal splint 100. Of course, thepatches 140 may alternatively be formed of hook receiving material. A skilled artisan will recognize that at least a portion of any suitable strap will have either hook receiving or hook material therein respectively corresponding to the hook or hook receiving material of thepatches 140 for selective releasable engagement therewith. - The
patches 140 provide an anchor point for any suitable distal strap that is utilized with thedorsal splint 100. Any suitable strap may thus be wrapped around the plantar surface of the foot and the ends thereof may be anchored or engaged with thepatches 140. Thus, there is no need for slots in thelower portion 124 of thedorsal splint 100, and theflexible edge overmold 138 may extend around and encompass the entire periphery of thedorsal splint 100. - In alternative embodiments, the substantially
rigid splint member 110 may include only the living hinges, and not the overmold, between the wing portions and the upper portion in order to provide the desired amount of flexibility for an improved, closer fit. Alternatively, the substantiallyrigid splint member 110 may include only the overmold, and not the living hinges, in order to provide a compliant interface between the substantiallyrigid splint member 110 and the user's skin. Further embodiments are discussed in more detail below. - As an alternative to utilizing both proximal and distal straps to tighten the
dorsal splint 100 to the user's body, asingle strap 300 may be utilized, as shown inFIGS. 3A-D . - As shown in
FIG. 3A , a substantiallyrigid splint member 110, having similar features as described above, such as a flexible edge overmold and/or living hinges, is provided.Strap 300 is provided in the shape or form of a “FIG. 8.” More specifically, thestrap 300 has first 302 and second 304 ends and first 312 and second 314 surfaces. The first end may be fixed along the distal end of thedorsal splint 100, for example along thelower portion 124 or theintermediate portion 118. Alternatively, thefirst end 302 may be fixed to thefirst surface 312 of thestrap 300. - The
second end 304 is wrapped around the substantiallyrigid splint member 110 such that thesecond surface 314 of the strap contacts the proximal surfaces of each of the upper, intermediate, and lower portions, and thefirst surface 312 of thestrap 300 such that the strap crosses over itself along the proximal surface of the intermediate portion and forms first 308 andsecond loops 310. Loop locks 306 may be provided in order to keep thestrap 300 in position with theloops - In use, the user places the foot through both the
loops first loop 308 will contract around the plantar surface of the foot and thesecond loop 310 will contract around the calf of a user. Thesecond end 304 of thestrap 300 is pulled to tighten both of theloops strap 300 may be provided with both hook material and hook receiving material, for example a patch of hook material along thesecond end 304, such that once thestrap 300 has been tightened it may be locked in the tightened position. - Numerous configurations of the “FIG. 8”
strap 300 may be utilized as exemplified inFIGS. 3C and 3D . For example, eachloop portion strap 300 may include an elastic orstretch portion 316 and anon-stretch portion 318. As shown inFIG. 3D , the elastic orstretch portion 316 and thenon-stretch portion 318 may be formed as separate pieces that are attached only along the ends of one or the other of the elastic orstretch portion 316 and thenon-stretch portion 318. - The “FIG. 8” strap may be utilized with any of the disclosed embodiments of a dorsal splint with the appropriate modifications. Specifically, a flexible inner member may be provided between the loops of the strap and the substantially rigid splint member. Or, as described in more detail below, inflatable or non-inflatable air bladders or gel pads may be used between the strap and the plantar surface of the foot.
- An embodiment of a
dorsal splint 100 is shown inFIGS. 4A-E that is similar to an embodiment discussed above with respect toFIGS. 1A-E , 2, and 2A. The dorsal splint as shown inFIGS. 4A-4E is constructed in a similar manner and from the same materials as discussed above with respect to the embodiments illustrated inFIGS. 1A-E , 2, and 2A. - In a modification from previous embodiments, as exemplified in
FIGS. 4A-4E , theovermold 138 encompassesupper wing portions 130,lower wing portions 132, and upper andlower slots 134. Thus, thelower portion 124 provides an enlarged surface area for engaging the dorsal surface of the foot. This configuration provides increased stability and increased support to the dorsal aspect of the foot. - In another variation, while the
dorsal splint 100 includes a flexibleinner member 142 similar in configuration to those previously discussed, there is no pouch member provided at the distal end of the flexibleinner member 142. Instead, the flexibleinner member 142 is retained on the substantiallyrigid splint member 110 via only hook and loop or other appropriate fastening mechanism, as discussed in detail above. - Again, as shown in
FIGS. 4A and 4E , “living hinges” 136 are provided in theupper portion 112 between a main a section of theupper portion 112 and theupper wing portions 130 in a manner as described above. - As illustrated in
FIG. 4E the flexibleinner member 142 has substantially the same shape as the substantiallyrigid splint member 110. The flexibleinner member 142 may be constructed in substantially the same manner as discussed above, without the pouch portion on the proximal surface. - In use, the first surface of the flexible
inner member 142 is removably fastened to the posterior anddistal surfaces FIG. 4E . Thus the flexibleinner member 142 is retained on the substantiallyrigid splint member 110 so that thedorsal splint 100 may be placed upon the leg, ankle, and foot of the wearer. As an alternative, the flexibleinner member 142 may be non-removably connected to the substantiallyrigid splint member 110 by, for example, an adhesive. - The
second surface 146 of the flexibleinner member 142 includes or defines at least onepadding member 152. A plurality ofpadding members 152 of varying thickness may be provided in any suitable pattern along thesecond surface 146, as shown inFIG. 4D . For example, a thicker padded portion may be provided in the area of the intermediate portion in order to protect the bony protuberance of the dorsum. Alternatively, thicker padded portions may also be used to increase the angle of dorsiflexion. The padding may be a thermoform pad having a pattern that provides a “form fit.” This may be accomplished by utilizing various thicknesses throughout the pattern. Thesecond surface 146 may be a soft covering that is not receptive to receiving hook material. Of course, any suitable material or fabric will suffice. - Proximal and
distal straps 170 are provided for engaging theslots 134 in theupper wing portions 130 and in thelower portion 124. Thestraps 170 have first 182 and second 184 ends respectively received in theslots 134 and have surfaces carrying or made from hook and/or hook receiving material so that thestraps 170 may be fastened onto themselves, as shown inFIGS. 4A-D . Of course, any suitable fastening mechanism, such as snap fasteners or buckles, may be used. - As shown, the
straps 170 are positioned between the substantiallyrigid splint member 110 and the flexibleinner member 142, in order to prevent creating points of irritation. The straps may have a uniform or non-uniform shape and size, for example the width may vary along the length of the straps. The straps may be of the same layered construction as previously discussed. - Given the above described construction, and in particular the living hinge, overmold, and padded flexible member, the
dorsal splint 100 provides an improved and more comfortable fit for both the user and anyone sharing the bed of the user. - Of course, the
dorsal splint 100 may be utilized in numerous variations of the above described embodiment. For example, the substantiallyrigid splint member 110 may be used without the flexibleinner member 142, and may instead have only the proximal and distal straps associated with the slots in the upper and lower portions. - In order to aid with placing the dorsal splint on the user's foot, an elastic band or stockinette may be connected directly to the substantially
rigid splint member 110 in any suitable manner, such as by adhesive, or to the flexibleinner member 142 in any suitable manner. In the case that a stockinette is used, the stockinette may extend along only a portion of the substantiallyrigid splint member 110, for example, so as to engage only the plantar surface of the foot. Alternatively the stockinette may extend along the entire substantiallyrigid splint member 110 so as to engage the plantar surface of the foot, the heel, and the calf of a user. - In alternative embodiments, the substantially
rigid splint member 110 may include only the living hinges, and not the overmold, between the wing portions and the upper portion in order to provide the desired amount of flexibility for an improved, closer fit. Alternatively, the substantiallyrigid splint member 110 may include only the overmold, and not the living hinges, in order to provide a compliant interface between the substantiallyrigid splint member 110 and the user's skin. Further embodiments are discussed in more detail below. - A collapsible embodiment of a
dorsal splint 500 is shown inFIG. 5 . - In this embodiment, a
flexible member 510 has a shape that roughly corresponds, and may conform to, the dorsal aspects of a user's lower leg, ankle and foot. The shape includes a generally rectangular shape with a wider portion in the proximal area of theflexible member 510. Theflexible member 510 may be formed from any suitable material, and may include a plurality of layers. A suitable layered structure is discussed above with respect to straps 170. Accordingly, the flexible member may include layers of fabric and foam, including layers of hook receiving material. - Amongst and/or within the layers is at least one pouch or
pocket 512. In the exemplary, illustrated embodiment, threepouches 512 extend longitudinally along theflexible member 510. Of course, any suitable number ofpouches 512 may be used. - Respectively received within the three
pouches 512 are three substantially rigid stays orsplint members 514. Of course, the number of substantially rigid stays orsplint members 514 corresponds to the number of pouches or pockets 512. The substantiallyrigid splint members 514 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters. The substantiallyrigid splint members 514 may be formed in any suitable manner, for example injection molding, casting, or curing. - The substantially
rigid splint members 514 include an upper portion having anterior and posterior surfaces shaped and configured to engage the dorsal aspect of the leg. - An intermediate portion is integrally formed with the upper portion and includes anterior and posterior surfaces and is further shaped and configured to engage the dorsum. As an alternative, the intermediate portion may be formed as a separate piece from the upper portion. The distinct pieces may be connected to each other in any suitable manner, such as by welding or adhesives.
- A lower portion is integrally formed with the intermediate portion in order to form the substantially rigid splint members. Proximal and distal surfaces are provided on the lower portion. As an alternative, the lower portion may be formed as a separate piece from the intermediate portion. The distinct pieces may be connected to each other in any known suitable manner, such as by welding or adhesives.
- Thus, the substantially
rigid splint members 514 comprise three portions, an upper portion, an intermediate portion, and a lower portion. Each portion is shaped and configured to engage a respective portion of the wearer's body. For example, the upper posterior surface may be generally flat or concave in shape in order to accommodate the fore leg, or shin. The shape of a concavity may be uniform or non-uniform along the posterior surface. - In order to provide a low profile dorsal splint, the upper anterior surface may have a flat or contoured shape to match the shape of the upper posterior surface. The upper portion may have any suitable thickness in order to provide the appropriate rigidity and support to the dorsal splint. The thickness may be uniform or non-uniform across the width, and along the length of the upper portion.
- The intermediate portion is shaped and configured to engage the dorsal aspect of the user's ankle. Accordingly, like the upper portion, the posterior surface of the intermediate portion may have a substantially flat or concave shape to accommodate the user's ankle. Similarly to the upper portion, the shape of a concavity may be uniform or non-uniform. The thickness of the intermediate portion may also be uniform or non-uniform. The proximal end of the intermediate portion is merged with the distal end up the upper portion and provides a smooth transition such that a point of irritation is not created at the juncture. Of course, if the intermediate and upper portions are separately formed and joined together, any appropriate surface treatment, such as sanding, grinding, or polishing, may be utilized to provide a smooth transition.
- Similarly, the lower portion is shaped and configured to engage the dorsal aspect of the user's foot. Thus, the distal surface of the lower portion may have a substantially flat or concave shape. As with the upper and intermediate portions, a concavity and thickness of the lower portion may be uniform or non-uniform. In a similar fashion as discussed above, the proximal end of the lower portion is merged with the distal end of the intermediate portion in order to provide a smooth transition between the two portions.
- The combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position when used in combination with the
flexible member 510. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion. - In use, the substantially
rigid splint members 514 are received in the pockets orpouches 512 of theflexible member 510. The pouches orpockets 512 may have openings at either end, or along the length of the pouches, in order to receive the substantiallyrigid splint members 514. The openings may always be open, in order to allow the substantiallyrigid splint members 514 to be removably received therein. Or the openings may be closed, in a known manner, once the substantiallyrigid splint members 514 have been received therein. For example, the openings may be sewn shut. Alternatively, zipper, snap, or hook and loop closures may be provided to allow selective closure of the openings in order to allow selective removal of the substantiallyrigid splint members 514 from the pockets orpouches 512. Thus, the brace is collapsible in order to fit into a smaller package. - The pouches or
pockets 512 and the substantiallyrigid splint members 514 are slightly spaced from each other in order to allow the flexible member to more easily conform to the curved surfaces of the dorsal aspects of the user's lower leg, ankle, and foot, and to collapse into a flat configuration when not in use. Additionally, the wider portion of the proximal end of theflexible member 510 may have no rigid splints or stays in order to provide a more comfortable fit. - Straps of any suitable configuration, as discussed herein, are provided. For example, the
flexible member 510 may be formed of softgood, and straps may be sewn to theflexible member 510 at one end. The straps may carry hook material at the other end in order to be fixed directly to theflexible member 510 or to the straps themselves. Alternatively, theflexible member 510 may include slotted loops for receiving ends of straps, in a manner previously discussed. - Further embodiments of a dorsal splint are discussed in more detail below.
- An embodiment of a hybrid
dorsal splint 600 is shown inFIGS. 6A and 6B . - A substantially
rigid splint member 602 may be constructed in a similar manner and with similar materials as previously discussed with respect to various other embodiments. As described with respect to previous embodiments, the substantiallyrigid splint member 602 includes upper, intermediate, and lower portions having anterior and posterior/distal surfaces shaped and configured to engage the dorsal aspects of the leg. - Thus, the substantially
rigid splint member 602 comprises three portions, an upper portion, an intermediate portion, and a lower portion. Each portion is shaped and configured to engage a respective portion of the wearer's body. For example, the upper posterior surface may be generally flat or concave in shape to accommodate the leg, or shin. - The intermediate portion is shaped and configured to engage the dorsal aspect of the user's ankle. Accordingly, like the upper portion, the posterior surface of the intermediate portion may have a substantially flat or concave shape to accommodate the user's ankle.
- Similarly, the lower portion is shaped and configured to engage the dorsal aspect of the user's foot. Thus, the distal surface of the lower portion may have a substantially flat or concave shape.
- Thus, the combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- The “hybrid” aspect of this embodiment of a dorsal splint arises from the addition of
flexible members rigid splint member 602 as an alternative to the flexible edge overmold of previous embodiments. Theflexible members rigid splint member 602 to provide a comfortable and close fit between thedorsal splint 600 and the user's leg. A flexibleinner member 614 may also be provided, similar to those previously discussed. - The
flexible members flexible members rigid splint member 602 in any suitable manner, either in a fixed or removable manner. For example, fasteners, such as rivets, 612 are provided. Since these elements are riveted strategically on and along the curvature of the main shell of the substantiallyrigid splint member 602, the overall dorsal splint maintains rigidity when it is worn, even with the use of thinflexible members - The upper and intermediate or lower
flexible members rigid splint member 602 in order to defineflexible wing portions flexible wing portions dorsal splint 600 to better conform to the user's body, in order to provide a closer and more comfortable fit. Theflexible members - The
flexible members - As previously mentioned, in order to provide an even more comfortable and closer fit, a flexible
inner member 614, such as any of those previously discussed, is also provided. Further, any suitable strapping mechanism, such as those discussed above and below, may be provided in order to retain thedorsal splint 600 in position on the user's body. - Further embodiments of a dorsal splint are discussed in more detail below.
- An embodiment of an integral
dorsal splint 700 is shown inFIG. 7 . The integraldorsal splint 700 includes aflexible member 710 and defines surfaces which act as an interface between thedorsal splint 700 and the dorsal aspects of the leg. A substantiallyrigid splint member 720 having aflexible edge overmold 730 is integrally formed on the proximal surfaces of theflexible member 710. - The substantially
rigid splint member 720 may have a similar configuration as previously discussed. Theflexible edge overmold 730 encases an outer edge of at least the upper portion, and as shown encases an outer edge of both the upper portion and the intermediate portion. Of course, theovermold 730 may encase the outer edge of the lower portion as well. - Both the substantially
rigid splint member 720 and theovermold 730 may be formed by injection molding directly onto and integrally with theflexible member 710. - In order to provide an even closer and more comfortable fit, the
dorsal splint 700 utilizes theflexible member 710 to provide a compliant surface interface between thedorsal splint 700 and the dorsal aspects of the leg. Theflexible member 710 may be softgood, or a sheet of material, such as a polypropylene knit material, a polyester knit material, a nylon, or any other suitable slightly porous material to allow the materials of therigid splint member 720 and theovermold 730 to pass therethrough to be become integrated with theflexible member 710. - As shown in
FIG. 7 , the substantiallyrigid splint member 720 and theovermold 730 are integrally formed with theflexible member 710 by injection molding. The pores of theflexible member 710 allow the plastic or polymer material of the substantiallyrigid splint member 720 and theovermold 730 to pass through theflexible member 710 and to bind theflexible member 710 to the substantiallyrigid splint member 720 and theovermold 730. - Thus the
flexible member 710 provides a soft and compliant interface between the surfaces of the substantiallyrigid splint member 720 and the body of the user. This allows thedorsal splint 700 to more closely conform to the user's body. - Proximal and
distal straps 740 are provided to maintain thedorsal splint 700 on the body of the user. Thestraps 740 may be sewn or otherwise attached to theflexible member 710, for example via slots and loops along the edges of theflexible member 710. Alternatively, straps 740 may be riveted or otherwise fastened to the anterior and proximal surfaces of the substantiallyrigid splint member 720.Straps 740 may be of any suitable type or construction, such as those discussed above and below. - The
overmold 730 andflexible member 710 provide a flexible interface between the rigid edges of the substantiallyrigid splint member 720 and the user's body. Thus, irritation due to the hard and sometimes sharp edges is reduced or eliminated. Accordingly, thedorsal splint 700 provides a more comfortable fit for the prolonged use during sleeping for both the user and any person sharing the same bed as the user. These features are an improvement over conventional dorsal splints that do not provide adequate protection from the rigid, and sometimes sharp, edges of the dorsal splints. - In alternative embodiments, living hinges, of the type described herein, may be provided to increase the flexibility of the wider portions of the
dorsal splint 700 in order to allow greater conformance to the user's body. Further embodiments of a dorsal splint are discussed in more detail below. - An embodiment of an alterable
dorsal splint 800 is shown inFIGS. 8A-C . - The alterable
dorsal splint 800 includes substantially rigid upper andlower splint members - The
upper member 810 includes anterior and posterior surfaces and is shaped and configured to engage the dorsal aspect of the lower leg. The upper member further includes first and second wing portions extending respectively from first and second sides of the upper portion. The upper posterior surface is generally concave in shape to accommodate the fore leg, or shin. The shape of the concavity may be uniform or non-uniform along the posterior surface. In order to provide a low profile dorsal splint, the upper anterior surface may have a contoured shape to match the shape of the upper posterior surface. The upper portion may have any suitable thickness in order to provide the appropriate rigidity and support to thedorsal splint 800. The thickness may be uniform or non-uniform across the width, and along the length of the upper portion. - The
lower portion 820 is shaped and configured to engage the dorsal aspect of the user's foot. Thus, the distal surface of the lower portion has a substantially concave shape. A flared distal end portion may be provided to avoid rigid corners that would dig into the flesh of the dorsal surface of the user's foot. As with the upper portion, the concavity and thickness of the lower portion may be uniform or non-uniform. - An
intermediate connector portion 830, such as a hinge or joint, is provided between the upper 810 and lower 820 portions. Theintermediate connector portion 830 is formed to allow relative rotation between the upper 810 and lower 820 portions in order to reduce the overall size or length of thedorsal splint 800 when the splint is not in use. - A flexible edge overmold or living hinges, as previously discussed, may be provided for one or both of the upper 810 and lower 820 portions. A suitable flexible inner member and/or suitable fastening and tightening mechanisms, as discussed above and below, may also be provided.
- As shown in
FIG. 8A , a flip type hinge is provided as theintermediate connector portion 830. This hinge type is common in mobile phones, and may be referred to as a “flip phone” hinge. This hinge allows the upper 810 and lower 820 portions to be opened and closed in a manner so that when closed, thelower portion 820 lies against theupper portion 810. In this manner the overall length of thedorsal splint 800 is reduced when the splint is not in use. - The hinge may be provided with suitable locking mechanisms, as will be recognized by the skilled artisan, such as a spring biasing mechanism, in order to prevent the accidental movement of the upper 810 and lower 820 portions with respect to each other.
- In an alternate configuration, as shown in
FIG. 8B , a ball joint swivel bearing connection is provided. This connection provides relative rotation between the upper 810 and lower 820 portions in three axes. A locking mechanism may be provided to lock the upper 810 and lower 820 portions from relative movement, as will be recognized by a skilled artisan. In this manner the angle of dorsiflexion may be adjusted. Also thedorsal splint 800 may be adjusted for different inherent angles of abduction/adduction in user's feet. Of course, when the dorsal splint is not in use the upper 810 and lower 820 portions may be rotated to lie against each other in order to reduce the overall size and length of the splint. - In yet another alternate configuration, as shown in
FIG. 8C , a single axis swivel connection is provided such that the upper 810 and lower 820 portions may be rotated in substantially a plane to lie against one another. As previously discussed, this allows the overall size and length of thedorsal splint 800 to be reduced. - The combination of the three portions serves to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed or altered by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- Further embodiments of a dorsal splint are discussed in more detail below.
- An embodiment of a flexible (or flex)
edge strap 900 for use with a dorsal splint is shown inFIG. 9 . - The
flex edge strap 900 is formed from two layered materials. The first layer ofmaterial 910 may be a thin layer of flexible material such as urethane foam or neoprene. The first layer ofmaterial 910 has or defines a first width. - The second layer of
material 920 may be layer of non-stretch material, such as woven nylon. Thesecond layer 920 further includes hook receiving material. Thesecond layer 920 has a width that is less than the width of thefirst layer 910 of flexible material. - The two
layers second layer 920 may be centered along thefirst layer 910, or may be offset or aligned along an edge of thefirst layer 910. Thesecond layer 920 may be provided along the entire length of thefirst layer 910, or only along selected portions of thefirst layer 910. In this manner the lengthwise stretch of the strap may be controlled by the second,non-stretch layer 920. - When the
second layer 920 is centered along the length of thefirst layer 910 thestrap 900 becomes a flexible edge strap. Thestrap 900 is therefore able to conform to the anatomy of the user so as to reduce pressure points. The width of the second,non-stretch layer 920 may be varied to alter the amount of flex along the edges of thestrap 900. - Hook material is provided along the ends of the
strap 900 so that thestrap 900 may be closed against itself when the hook material engages with the hook receiving material of the second,non-stretch layer 920. - A skilled artisan will recognize many suitable materials that may be used to form each of the layers of the
strap 900. Thestrap 900 may be utilized in any of the above or below discussed embodiments of a dorsal splint. - Further embodiments of a dorsal splint are discussed in more detail below.
- Another embodiment of a collapsible
dorsal splint 1000 is shown inFIGS. 10A and 10B . - In the embodiment shown in
FIGS. 10A and 10B , aflexible member 1030, includes first, second, third, andfourth pockets second pockets flexible member 1030 from the proximal end towards the distal end, and are formed along a centerline of theflexible member 1030. Thepockets flexible member 1030 of the transition between the ankle engaging portion and the foot engaging portion. Alternatively, thepockets flexible member 1030. Of course, more than two pockets may be utilized. - The
flexible member 1030 having a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot is provided. Theflexible member 1030 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials. Theflexible member 1030 is provided with at least one pocket or pouch along a first or second surface. - The
pockets flexible member 1030. Alternatively, the openings may be along the distal end, or along either surface of theflexible member 1030. The open ends may be maintained open or closed off in a manner described below. - Substantially rigid first and
second splint members second pockets splint members splint members - The substantially
rigid splint members rigid splint members - Each substantially
rigid splint member splint members splint members - The first and
second splint members second pockets splint members splint members pockets - The
flexible member 1030 also includes third andfourth pockets fourth pockets flexible member 1030. The third andfourth pockets flexible member 1030 and along the distal portions of the first andsecond pockets pockets flexible member 1030. They may be provided with any suitable shape. - First and second substantially rigid removable stays (or splint members) 1040, 1050, are provided for insertion into the third and
fourth pockets stays splint members splint members -
Straps 1060 of any suitable configuration are provided at least along the proximal and distal portions of thedorsal splint 1000. Thestraps 1060 may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners. - The substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- The use of two
splint members dorsal splint 1000 in half, allows thedorsal splint 1000 to take a lower profile while not attached to a user, for ease of storage. This configuration further allows thedorsal splint 1000 to better conform to the user's lower leg, ankle, and foot, by allowing thesplint 1000 to flex around its centerline. Of course, if thesplint members dorsal splint 1000 is more suitable for travel, so a user may use the splint every night, even while traveling. - Another embodiment of a collapsible dorsal splint 1100 is shown in
FIG. 11 . - The
flexible member 1130 is provided with at least one pocket or pouch along a first or second surface. - As shown in
FIG. 11 , aflexible member 1130 includes a single pocket orpouch 1132 that extends length-wise along the entireflexible member 1130. The pocket may be open at a proximal end, or along the distal end, or along either surface of theflexible member 1130. First, second, andthird splint members pockets 1132. Thesplint members splint members pocket 1032 the open ends may be closed or selectively closed by threads, adhesives, zipper closures, or in any other suitable manner. - Substantially rigid first and
second splint members pockets 1032. Thesplint members splint members - A
third splint member 1122 is provided between the first andsecond splint members third splint member 1122 may be rigid in the manner of the other splint members, or alternatively, may be made from a flexible material, such as plastic. Suitable materials may include thermoplastic elastomers, silicones, or urethanes. - The
flexible member 1130 may be similar to the previously discussed flexible member. Theflexible member 1130 has a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot. Theflexible member 1130 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials. - The substantially
rigid splint members rigid splint members - Each substantially
rigid splint member splint members splint member -
Straps 1140 of any suitable configuration are provided at least at the proximal and distal portions of thedorsal splint 1000. Thestraps 1140 may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners. - The substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- The use of two
splint members splint member 1122 to essentially divide the dorsal splint 1100 in half, allows the dorsal splint 1100 to take a lower profile while not attached to a user, for ease of storage and for reduced shelf space during display. This configuration further allows the dorsal splint 1100 to better conform to the user's lower leg, ankle, and foot, by allowing the splint 1100 to flex around its centerline. - Of course, if the
splint members - Another embodiment of a collapsible
dorsal splint 1200 is shown inFIG. 12 . - A
flexible member 1230, similar to the previously discussed flexible member, has a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot is provided. Theflexible member 1230 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials. Theflexible member 1230 may be provided with at least one pocket or pouch along a first or second surface. - As shown in
FIG. 12 , theflexible member 1230 includes a plurality of pockets orpouches 1240 that apportion the width and length along the entireflexible member 1230. The pockets may be open at proximal ends, along distal ends, or along either surface of theflexible member 1230. - Substantially rigid
segmented splint members 1220 are provided to be received within thepockets 1240. Thesplint members 1220 have portions that are shaped and configured to engage portions of the dorsal aspect of the lower leg, ankle, and the foot. - The substantially rigid
segmented splint members 1220 may be formed from any suitable material, for example any appropriate thermoplastic or thermosetting polymer, carbon, carbon fiber epoxy composite, plastic, fiber reinforced plastic, molded chopped fibers, laminates, metal or any other suitable material. Exemplary materials include, but are not limited to, nylons, glass filled nylon, polypropylenes, vinyls, polyvinyl chlorides, high density polyethylene, epoxies, urethanes, and polyesters. The substantiallyrigid splint members 1220 may be formed in any suitable manner, for example injection molding, casting, or curing. - Each substantially
rigid splint member 1220 includes anterior and posterior surfaces that have the desired amount of uniform or non-uniform curvature in order to be complementary shaped to the appropriate portion of the user's lower leg, ankle and foot. A skilled artisan will recognize that thesplint members 1220 may have any suitable and desired shape. - The
splint members 1220 are either removably, or fixedly, received inpockets 1240. Thesplint members 1220 are inserted into the pockets. If it is desired to maintain thesplint members 1220 fixedly in thepocket 1240 the open ends may be closed or selectively closed by threads, adhesives, zipper closures, or any other suitable manner. - Straps of any suitable configuration are provided at least at the proximal and distal portions of the
dorsal splint 1200. The straps may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners. - The substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- The use of a plurality of
splint members 1240, allows thedorsal splint 1200 to take a collapsed lower profile while not attached to a user, for ease of storage. This configuration further allows thedorsal splint 1200 to better conform to the user's lower leg, ankle, and foot, by allowing thesplint 1200 to flex around the user's lower leg, ankle, and foot. Of course, if thesplint members 1240 are allowed to be removable, or are appropriately shaped, the flexible member may be completely flattened or nearly completely flattened, thus reducing the space required for storage. Thus, thedorsal splint 1200 is more suitable for travel, so a user may use the splint every night, even while traveling. - Another embodiment of a collapsible
dorsal splint 1300 is shown inFIGS. 13A-C . - A
flexible member 1330, similar to the previously discussed flexible member, has a shape and configuration to conform to the dorsal surfaces of the lower leg, ankle, and foot is provided. Theflexible member 1330 may be made from any suitable materials, such as softgood, foam covered with suitable fabrics, or any other suitable materials. Theflexible member 1330 is provided with at least one pocket or pouch along a first or second surface. - As shown in
FIG. 13B , theflexible member 1330 includes a single pocket orpouch 1332 that extends length-wise along theflexible member 1330. The pocket may be open at a proximal end, or along the distal end, or along either surface of theflexible member 1330. - Substantially rigid first and
second splint members pockets 1032. Thesplint members splint members - The substantially
rigid splint members rigid splint members - Each substantially
rigid splint member splint members splint members - The first and
second splint members pocket 1332. Thesplint members pocket 1332. If it is desired to maintain thesplint members pocket 1332 the open end may be closed or selectively closed by threads, adhesives, zipper closures, or any other suitable manner. -
Straps 1340 of any suitable configuration are provided at least at the proximal and distal portions of thedorsal splint 1300. Thestraps 1340 may include hook material and/or hook receiving material, or any other suitable fasteners, such as buckles or snap fasteners. - The substantially rigid portions combined serve to position a user's foot, ankle, and lower leg in a dorsiflexion position. The angle of dorsiflexion may be fixed by the relationship of the three members. Exemplary angles of dorsiflexion are in the range of 80° to 90°. In particular, a range of 85° to 90° provides a suitable range of dorsiflexion.
- The use of two
splint members dorsal splint 1300 in half, allows thedorsal splint 1300 to take a collapsed or lower profile while not attached to a user, for ease of storage. This configuration further allows thedorsal splint 1300 to better conform to the user's lower leg, ankle, and foot, by allowing thesplint 1300 to flex around its centerline. Of course, if thesplint members dorsal splint 1300 is more suitable for travel, so a user may use the splint every night, even while traveling. - In an alternative embodiment, first, second, and third substantially rigid splint members may be provided and three pockets may be provided within the flexible member. The first and second splint members may be sewn in, or otherwise fixedly received within first and second pockets in the flexible member. The third splint member may then be removable received within the third pocket, in a manner previously discussed. Thus, the dorsal splint may have a lower profile when not in use to reduce the amount of storage space required.
- Various embodiments of a
dorsal splint 100 are illustrated inFIGS. 14 , 15, 16, and 17A-C. Thedorsal splint 100 of these embodiments has the same basic structure and configuration as discussed above with respect to the embodiments shown inFIGS. 1A-E , 2, 2A, and 4A-E. - As shown in
FIG. 14 , instead of a strap of hook and hook receiving material, anelastic fabric strap 170 is provided. The strap may have any suitable configuration to provide a comfort fit, such as an elongated opening along the portion of the strap that contacts the plantar surface of the foot. - As shown in
FIG. 15 , a pad orbladder 196 is provided between thestrap 170 and the plantar surface of the foot. Anysuitable pad 196 may be used, such as a gel pad, for example silicone gel or any suitable gel. Thegel pad 196 may be utilized to provide therapeutic benefits, such as heating or cooling. Alternatively, abladder 196 may be used in place of the gel pad. The bladder may be closed and formed of materials that will expand very little to define a single size. An inflatable or expandable bladder may also be used. The bladder may be filled with any suitable fluid, such as water or air, in order to define a particular size pad. Different size pads or bladders, or the expandable bladder, may be provided to alter the amount of dorsiflexion provided by thedorsal splint 100. - As shown in
FIG. 16 , the substantiallyrigid splint member 110 includeslower wing portions 132 along the edges of thelower portion 134 of the substantiallyrigid splint member 110. At least oneslot 134 is provided in each of thelower wing portions 132 for receiving strap ends in a manner previously discussed. Thelower wing portions 132 may be provided with living hinges in a similar manner as discussed above. As also discussed above, theovermold 138 encases an outer edge of thelower portion 124 of the substantiallyrigid splint member 110 and further encompasses theslots 134 in thelower wing portions 132. This configuration provides the benefits, as discussed above, of a better and more comfortable fit for thedorsal splint 100. - A
distal strap 170 is provided for engaging theslots 134 in thelower portion 124 of the substantiallyrigid splint member 110. In order to adjust the angle of dorsiflexion, a plurality of interchangeable straps may be provided having different thicknesses. For example, the portion of thestrap 170 that contacts the plantar surface of the foot may have a first thickness, and the edges of the strap that engage the slots may have a second thickness that is less than the first thickness. A second, interchangeable strap may be provided having a third thickness in the portion of the strap that contacts the plantar surface of the foot, while having the same second thickness along the edges. The third thickness may be less than or greater than the first thickness and the second thickness along the edges may be less than the third thickness. In this manner, the dorsiflexion may be adjusted by the use of different straps. - An alternate embodiment of the
lower wing portion 132 is shown inFIG. 17A . In this embodiment, twoslots 134 are provided in each of thelower wing portions 132, for receiving the ends of adual strap 190, as shown inFIGS. 17B and 17C . Thedual strap 190 has first andsecond strap portions portion 195. The first andsecond strap portions second strap portions - The connecting
portion 195 may be formed from a somewhat flexible or stretchy material, such as a urethane foam, or neoprene, or any other suitable material, in order to provide a comfortable fitting surface for the plantar surface or to conform to the convex shape of the plantar surface of the user's foot. The connectingportion 195 may be provided with hook and/or hook receiving material so that the ends of the first andsecond strap portions - Of course, the different features discussed herein may be utilized with any of the previously disclosed embodiments. Specifically, any of the straps utilizing gel pads or bladders may be utilized with any dorsal splint disclosed herein.
- An embodiment of a
hybrid strap 1800 for use with a dorsal splint is shown inFIG. 18 . - The
hybrid strap 1800 is formed from a layer offlexible material 1810 which may be a thin layer of flexible material such as urethane foam or neoprene. The layer offlexible material 1810 has or defines a first width, which may be uniform or non-uniform. -
Strips 1820 of non-stretch material, such as woven nylon having widths that are less than the width of the layer offlexible material 1810 are provide along the length of the layer offlexible material 1810. Thus, the length of the hybrid strap is fixed. In alternative configurations, the non-stretch material can be shorter than stretch material so it only limits the overall stretch of the strap. Also, the materials may have non-linear shapes (half moon, etc.) in order to vary the strap stretch across the width of the strap. - The
strips 1820 and the layer offlexible material 1810 are connected together in any suitable manner, such as by sewing or adhesive. Thestrips 1820 may aligned along the edges of the layer offlexible material 1810, or offset from the edges. In this manner the lengthwise stretch of the strap is limited, and the length of the strap is fixed. - The width of the
strap 1800 is varied by the flexibility of the layer offlexible material 1810. Thus a more comfortable strap is provided that maintains the splint in position on the foot or calf with a consistent strength, due to the fixed strap length, is provided. - Hook and/or loop material is provided along the layer of
flexible material 1810. Fasteners of hook and/orloop material 1830 are provided along the width at each end of the layer offlexible material 1810. The fasteners may also be of non-stretch material, so that the ends of thestrap 1800 may be easily passed through slotted portions in the dorsal splint. - The
strap 1800 may be utilized in any of the embodiments of a dorsal splint discussed herein. - An alternate configuration of a
strap 170 is shown inFIG. 19 , as previously mentioned. Thestrap 170 may be a thermoformed padding strap. Thestrap 170 includesfoam 176, non-stretchunbroken loop material 174 on one side, andstretch material 180 on the other side where a pattern is formed. Thethermoformed side 180 is positioned against the skin, thus providing cushioning. In this way, thestrap 170 has a defined and limited length; however, the cushioning of thefoam 176 allows conformity of thestrap 170 against the foot. Holes may be strategically placed (where the pad thickness is completely knocked down) on the thermoformed area to provide breathability. - A further embodiment of a
distal strap assembly 2060 for use with adorsal splint 2000 is shown inFIGS. 20A-C . In this configuration, aflexible edge overmold 2038 extends around and encompasses the periphery of thedorsal splint 2000.Slots 2034 in the lower portion of thedorsal splint 2000 provide attachment points forstraps 2070 of thestrap assembly 2060. - The
strap assembly 2060 also includes adistal bottom piece 2080 that has a width W that is as large as the average male's foot for preventing Morton's neuroma, a noncancerous (benign) growth of nerve tissue that can develop in a nerve of the foot, often between the third and fourth toes. The condition involves a thickening of the tissue around one of the digital nerves leading to the toes. - The
distal bottom piece 2080 includes twoouter layers 2082 of soft material that are secured to each other at least around two or three edges in order to form a pocket orpouch 2086 therebetween. A cushion orfoam layer 2084 is also provided within thepouch 2086 towards the proximalouter layer 2082. Thecushion layer 2084 is secured at its edges to at least one of theouter layers 2082. - At least one substantially rigid stay or insert 2090 may be inserted into the
pouch 2086 in order to provide structural support to thedistal bottom piece 2080 and the plantar surface of the foot, as shown inFIG. 20B . The stay or insert 2090 may be made from any of the above mentioned materials. As shown inFIG. 20C in an alternate configuration, two stays or inserts 2090 are provided into thepouch 2086, which may separate the two stays or inserts 2090 via a seam 2092 that extends the length of thedistal bottom piece 2080. In a further variation, theinsert 2090 may be cut down the middle in order to reduce the size of the packaging required for thedorsal splint 2000. - Attachment points in the form of D-
rings 2088 are provided along the sides of thedistal bottom piece 2080 for engagement with thestraps 2070. As best seen inFIG. 20B , one end of eachstrap 2070 engages arespective slot 2034 in thedorsal splint 2000 and thestraps 2070 pass through a respective D-ring 2088. The other ends of thestraps 2070 wrap around the proximal surface of the lower portion of thedorsal splint 2000. Thestraps 2070 may thus engage each other to complete the attachment. Alternatively, patches of hook or hook receiving material, such as those shown inFIG. 2A may be provided on or embedded in the proximal surface of the lower portion of thedorsal splint 2000 so the other ends of thestraps 2070 may be anchored thereto. - As previously mentioned, the
insert piece 2090 can be removable depending on the user's need. Alternatively, theinsert piece 2090 or pieces may be retained in the pocket orpouch 2086 in a manner similar to those previously discussed. - In observing
FIGS. 21A-21C , another embodiment of asplint member 2100 is shown. According to this embodiment, thesplint member 2100 includes many of the features belonging to other embodiments described herein including a substantially rigidintermediate portion 2102 surrounded by anedge overmold 2104 and living hinges 2108. These features may be similar to those described in connection with the basic embodiment ofFIGS. 1A-1E . - The
splint member 2100, in a variation of other embodiments described herein, includes an aluminum stay 2106 (depicted by dashed lines) which is preferably embedded or encased within theintermediate portion 2102. Thealuminum stay 2106 is preferably bendable atbend area 2118 along with theintermediate portion 2102 in order to custom-fit or modify the therapeutic angle of thesplint member 2100. However, when worn on a leg, thestay 2106 effectively retains its bent shape so as to maintain its shape and the shape of theintermediate portion 2102. It is only when thesplint member 2100 is not in use or being worn that one may modify the shape of thesplint member 2100. - As depicted in
FIG. 21D , thesplint member 2100, by way of thestay 2106, may be bent from an originalsplint member shape 2128A to a modified splint member shape, as exemplified by 2128B. Thesplint member 2100 generally bends at or around thebend area 2118, as shown inFIG. 21A . - The
intermediate portion 2102 defines a plurality of locatingapertures 2124 which reveal the location of thestay 2106 located within theintermediate portion 2102. Theintermediate portion 2102 defines a recessedportion 2119 located around thebend area 2118 which facilitates and indicates the bending of thestay 2106. Other apertures may be located on the intermediate portion to further reveal thestay 2106 and to reduce weight of theintermediate portion 2102. - The
intermediate portion 2102 defines anupper neck 2103 and alower neck 2105, and abulbous portion 2107. The upper andlower necks intermediate portion 2102 and minimize extension of the rigid splint material over the foot and ankle. As a result of the upper andlower necks edge overmold 2104 definesflap portions - The edge overmold therefore has sections of greater size, defined by length, width or thickness, located along the length of the rigid splint member. The overmold edge sections may be tailored in size according to locations of the foot and ankle to provide increased of cushioning.
- Additionally, the
intermediate portion 2102 forms anopening 2110 which corresponds to anopening 2130 formed within thestay 2106. These correspondingopenings stay 2106 is properly aligned with theintermediate portion 2102. A recessedportion 2114 is located on thebulbous portion 2107 and surrounds theopening 2110, and allows for the location of a fastener material, such as a loop fabric, to be inserted therein. The geometry of thebulbous portion 2107 provides a greater area to secure fastener material and corresponding straps. - Turning to the posterior of the
splint member 2100, while it is preferable that thestay 2106 is embedded within theintermediate portion 2102, it is evident fromFIGS. 21B and 21C that thestay 2106 may slightly bulge alonglines 2122 of theintermediate portion 2102. Further, cross-tabs 2120 may be molded or applied to the posterior side of theintermediate portion 2102 for the location of a fastener material, such as a hook fabric to be inserted therein. - Another feature of the embodiment of
FIGS. 21A-21B is the provision of venting throughslots slots splint member 2100 so as to allow for adequate ventilation through the straps and the splint member. The slots further reduce material of the intermediate portion, and may be combined withrecesses 2112 so as to minimize the weight of the splint member. The slots or recesses may be provided at a plurality of locations of the splint member and are not limited to the arrangement shown herein. As for theholes 2116, these are provided to locate and stabilize thestay 2106 in place during the molding process. Therecesses 2112 may extend through the entirety of thesplint member 2100 so as to allow for better breathability, as in theslots splint member 2100, or can be provided for ornamental purposes. -
FIGS. 22A-22D exemplify astrap system 2200 which may be used in combination with embodiments ofsplint members 2202 described herein. Thisstrap system 2200 is provided to snugly secure thesplint member 2202 to the foot, ankle and calf portions of the wearer. Padding is provided along with the strapping to more comfortably and stably connect the splint member to the wearer. - The
strap system 2200 includes anankle portion 2204 and a toe andplantar portion 2206 which are connected by abridge portion 2208. Acalf portion 2210 extends from theankle portion 2204. Aninterior padding liner 2224 may be secured to the posterior surface of thesplint member 2202 so as to cushion the foot and leg when thestrap system 2200 tightens thesplint member 2202 against the foot and leg. The interior padding may be of any type described herein, such as a thermoformed padding having localized areas of different degrees of compressibility corresponding to different parts of the foot, ankle and leg, or a continuous padding having generally uniform compressibility and consistent thickness. - The
ankle portion 2204 includes aheel stirrup 2222 which secures thestrap system 2200 to the heel and under the foot. Theankle portion 2204 includes opposedstraps ankle portion 2204 over the anterior surface of the splint member. Theankle portion 2204 also includes generally stretchable straps 2231, 2233 connecting to thepadding liner 2224 and thestraps straps straps - The splint member may define a recessed portion, as in the
recess 2114 inFIG. 21A , which accommodates a hook and loop material and secures to corresponding hook and loop material on thestrap 2226. Astrap locator 2234 may be located on thesplint member 2202 to retain the straps in a position relative to the splint member 2202 (i.e., the splint member may be formed from plastic upon which the straps may slide). - The
calf portion 2210 includes opposedtabs slots 2230 which are formed on thesplint member 2202. Thetabs calf portion 2210 fasten to one another via fasteners, such as with corresponding hook and loop material. - The
ankle portion 2204 connects to thetoe portion 2206 via thebridge portion 2208. Thebridge portion 2208 may be formed from a stretchable material so as to accommodate movement of different portions of the leg and foot and different foot sizes. Alternatively, thebridge portion 2208 may be substantially non-stretchable so as to maintain the ankle andtoe portions - Turning to the
toe portion 2206, this secures to thesplint member 2202 via asleeve 2230 fitted to closely conform to the corresponding toe portion of thesplint member 2202. Anedging 2232 extending from thesleeve 2230 wraps about peripheral edge portions of thesplint member 2202 into portions corresponding to theankle portion 2204 andcalf portion 2210 of thestrap system 2200. The interior side of thesleeve 2230 forms part of theinner padding liner 2224 and the edging 2232 likewise forms part of or connects to theinterior padding liner 2224. Thesleeve 2230 and the edging 2232 may be secured to thesplint member 2202 by suitable fasteners such as hook and loop material. - The
toe portion 2206 includes an angled pull defined by stitching ordivider 2227 which joins two opposingends straps straps straps - The
toe portion 2206 also includes aplantar pad 2228. Thisplantar pad 2228 may be formed from a high density foam or rigid plastic sheet placed along the plantar portion of thetoe portion 2206 where the metatarsals will be when the splint member worn. Portions of theplantar pad 2229 may comprise island pads that have increased areas of compressibility or are distinguished from other areas on the basis of surface area or other geometry in order to accommodate the corresponding region of the foot. As with similar embodiments described herein, the plantar pad is included to provide rigidity to avoid pressure points on the heads of the metatarsal joints so as to prevent Morton's neuroma. - The
toe portion 2206 further includesopenings 2218 formed on bothstraps strap system 2200 is tightly secured to the leg and foot. This pressure relief on the side of the foot also assists in preventing Morton's neuroma. - Lastly, the
toe portion 2206 includes atoe stopper 2220 connecting or securable to the front end of thesleeve 2230 and theinner padding liner 2224. Further, thetoe stopper 2220 provides a visual guide for proper application of the splint member to the foot. The splint member is found to be more functional when the bottom end of the splint member is placed close to the end of the foot. Thetoe stopper 2220 visually guides the wearer to maintain the toes from passing through or inadequately approaching the end of the splint member during application. Additionally, thetoe stopper 2220 is positioned to maintain the angle of the flexion of the foot by maintaining better contact with the shell and foot. - The strapping
system 2200 may be formed in the manner of any of the other strap embodiments described herein, and is not limited to the padding and individual straps shown herein. - The disclosed embodiments of a dorsal splint and straps for use with a dorsal splint provide great flexibility for dorsal splints having better and more comfortable fit, improved ability to hold a functional angle of the foot in flexion for optimum therapeutic value, and for dorsal splints that may have lower profiles for retail display, storage, and traveling.
- It is understood that the size of the dorsal splint and the components thereof can be adjusted so that different users having different sized legs, ankles, and feet may benefit from the present design. Specifically, the width, thickness and length of the splint member may be varied to accommodate different sized users. Of course, many of the improvements disclosed herein, such as the overmold and the living hinge, allow a single size dorsal splint to comfortably fit a larger number of different sized users.
- Of course, it is to be understood that not necessarily all objects or advantages may be achieved in accordance with any particular embodiment of the invention. Thus, for example, those skilled in the art will recognize that the invention may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein.
- The skilled artisan will recognize the interchangeability of various features from different embodiments. In addition to the variations described herein, other known equivalents for each feature can be mixed and matched by one of ordinary skill in this art to construct a dorsal splint in accordance with principles of the present invention.
- Although this invention has been disclosed in the context of certain exemplary embodiments and examples, it therefore will be understood by those skilled in the art that the present invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses of the invention and obvious modifications and equivalents thereof. Thus, it is intended that the scope of the present invention herein disclosed should not be limited by the particular disclosed embodiments described above.
Claims (20)
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US13/090,383 US9943431B2 (en) | 2007-05-21 | 2011-04-20 | Orthopedic device |
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US13/090,383 Active 2031-03-10 US9943431B2 (en) | 2007-05-21 | 2011-04-20 | Orthopedic device |
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US (3) | US20080294083A1 (en) |
EP (1) | EP2150214B1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
WO2008153675A1 (en) | 2008-12-18 |
EP2150214A4 (en) | 2014-04-16 |
EP2150214A1 (en) | 2010-02-10 |
US9943431B2 (en) | 2018-04-17 |
EP2150214B1 (en) | 2015-11-11 |
US20080294082A1 (en) | 2008-11-27 |
CN101711141A (en) | 2010-05-19 |
US20110196275A1 (en) | 2011-08-11 |
US7727174B2 (en) | 2010-06-01 |
CN101711141B (en) | 2013-04-24 |
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