JP3206295U - Joint orthosis - Google Patents

Abstract

Provided is a joint orthosis that can suppress unnecessary deformation before the cast stay is cured even if it is attached to the wearer after the cast stay before curing is provided on the joint orthosis. A joint orthosis 1 includes support portions 2R and 2L that cover a covering portion of a human body, holding portions 21R and 21L that are connected to the support portion and hold deformable support members 31R and 31L that support the covering portion, And at least one fixed belt portion 3a, 3b connected to the holding portion. In this joint orthosis, the holding part may be connected to the support part in the circumferential direction of the support part and in a direction perpendicular to the circumferential direction of the support part. In this joint orthosis, the retention rate of the fixed belt portion may be 1.0 to 25%. [Selection] Figure 7

Description

  The present invention relates to a joint orthosis that covers a joint of a human body. In particular, the present invention relates to a joint orthosis that fixes a joint such as a wrist or an ankle by holding a support member.

  Currently, in the medical field in the orthopedic field, there are demands for various joint braces that are equipped with a cast stay having a shape that matches the affected area of the patient and that quickly fixes the affected area of the patient. For example, Patent Literature 1 discloses a joint orthosis that holds a cast stay in a pocket and fixes a main body with a fixing belt that fixes an instep and an ankle upper portion and a fixing belt that extends from the bottom of the foot to the ankle. Yes. And it is said that the fixing property and fitting property are excellent when worn, and the affected part can be stably fixed and held.

JP 2004-154430 A

  However, the joint orthosis disclosed in Patent Document 1 fixes the orthosis and the patient when the deformable cast stay before curing (hereinafter simply referred to as a cast stay) is mounted on the patient after being mounted on the orthosis. The fixing belt that tightens the cast stay and deforms before the cast stay is cured. As a result, it becomes difficult to form a shape that fits the affected area of the patient after curing and does not hurt the affected area.

  The present invention has been made in view of such a problem, and even if the cast stay before curing is provided on the joint orthosis and attached to the wearer, unnecessary deformation occurs before the cast stay is cured. It aims at providing the joint orthosis which can be suppressed.

  In order to solve the above problems, the present invention provides a support part that covers a covering part of a human body, a holding part that is connected to the support part and holds a deformable support member that supports the covering part, and at least connected to the holding part. There is provided an articulated orthosis comprising one fixing belt portion.

  In this joint orthosis, the holding part may be connected to the support part in the circumferential direction of the support part and in a direction perpendicular to the circumferential direction of the support part. In this joint orthosis, the retention rate of the fixed belt portion may be 1.0 to 25%.

  According to the joint orthosis of the present invention, even if the cast stay before curing is provided on the orthosis and attached to the patient, the cast stay can be prevented from being deformed before curing by the fixing belt that fixes the orthosis and the patient.

It is a perspective view which shows the front opening state seen from the front side of the joint orthosis which concerns on one Embodiment of this invention. It is a left view of the joint orthosis which concerns on one Embodiment of this invention. It is a left view which shows a mode that the cast stay is accommodated in the joint orthosis which concerns on one Embodiment of this invention. It is a right view of the joint orthosis which concerns on one Embodiment of this invention. It is a right view which shows a mode that the cast stay is accommodated in the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows an example of the mounting process when mounting | wearing a leg | foot with the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows an example of the mounting process when mounting | wearing a leg | foot with the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows an example of the mounting process when mounting | wearing a leg | foot with the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows an example of the mounting process when mounting | wearing a leg | foot with the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows an example of the fixed band of the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows an example of the mounting process when mounting | wearing a leg | foot with the joint orthosis which concerns on one Embodiment of this invention. It is a perspective view which shows the state which mounted | wore the joint orthosis which concerns on one Embodiment of this invention.

  Hereinafter, embodiments to which the present invention can be applied will be described with reference to the drawings. In addition, embodiment described below shows an example of typical embodiment of this invention, and, thereby, the range of this invention is not interpreted narrowly.

<1. Configuration of Joint Orthosis According to One Embodiment>
A configuration of a joint orthosis according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. The joint orthosis 1 according to the present embodiment is an orthosis that covers the joint of the wearer's ankle, and fixes the main body 2 and the main body 2 that covers the lower leg that is the portion from the knee of the wearer to the ankle. A first fixing belt 3 (3a and 3b), a second fixing belt 4 that is connected to the lower part of the body portion 2 and covers the lower part of the wearer's ankle, a third fixing belt 5 that fixes the ankle when worn, Is provided.

  The main body 2 is formed of a support 2R that covers the right side of the lower leg, which is a covering part of the human body, and a support 2L that covers the left side of the lower leg. A crus upper end tab 6a and a crus middle tab 6b are formed at the distal ends of the first fixing belts 3a and 3b, respectively. The second fixing belt 4 includes a right end portion 7R including a forefoot tab, a left end portion 7L, and a foot attachment portion 7c attached to the sole of the wearer. A right surface fastener portion 8R and a left surface fastener portion 8L are formed at both ends of the third fixed belt 5. In the center of the lower part of the main body 2, an opening 9 into which the wearer's heel is inserted is formed. Below, each part is demonstrated in detail.

<2. Main unit>
The main body 2 is arranged so as to cover the lower leg when worn. The main body 2 is formed in a substantially fan shape, and the length in the circumferential direction (arrow X direction shown in FIG. 1) is 250 to 400 mm, preferably 270 to 340 mm. On the other hand, the length of the main body 2 in the direction perpendicular to the circumferential direction (the direction indicated by the arrow Y in FIG. 1) is 200 to 300 mm, more preferably 240 to 280 mm. It should be noted that the size of the ankle joint, particularly the length of the crus in the circumferential direction, is usually different depending on individual differences. For this reason, the length in the circumferential direction of each part and the length in the direction perpendicular to the circumferential direction in the joint orthosis 1 according to the present invention are adjusted to correspond to the thickness of the lower leg of various wearers. be able to.

  Moreover, this main-body part 2 consists of a non-elastic material normally used for shaping | molding of a joint orthosis, for example, is formed as the knitted fabric which knit | knitted the thread | yarn material. For this reason, the main-body part 2 becomes a structure which is hard to expand-contract in the circumference direction of a wearer's leg part, and the direction perpendicular | vertical to the said circumference direction.

In the main body 2, the extension force in the circumferential direction is 5 to 10N, preferably 6 to 8N. On the other hand, in the main body 2, the extension force in the direction perpendicular to the circumferential direction is 40 to 70N, preferably 45 to 65N. Moreover, the holding | maintenance rate of the direction of the circumferential direction of the main-body part 2 and a direction perpendicular | vertical to a circumferential direction is both 1.0-25%, Preferably it is 4.0-21%. By setting the holding ratio in the circumferential direction and the holding ratio in the direction perpendicular to the circumferential direction in the main body part 2 within the above range, the main body part 2 can be stretched according to the stretched state of the wearer's skin. . That is, followability with respect to the body surface of the wearer is ensured, and the fit of the wearer can be improved. In addition, the above-mentioned retention rate (%) can be calculated by the following formula 1.
Retention rate (%) = {tightening force (N) / extension force (N)} × 100 (Formula 1)

  Here, the extension force in the circumferential direction means that when the tensile elongation in the initial state of the main body 2 is 0%, the main body 2 is pulled in the circumferential direction and the tensile elongation becomes 20%. It refers to the stress acting on the main body 2. On the other hand, the extension force in the direction perpendicular to the circumferential direction means that when the tensile elongation in the initial state of the main body 2 is 0%, the main body 2 is pulled in the direction perpendicular to the circumferential diameter. It refers to the stress acting on the main body 2 when it reaches 20%. “Tensile elongation” refers to the elongation ratio of the length of the main body 2 in the circumferential direction or the direction length perpendicular to the circumferential direction.

Here, a method for measuring the stretching force and the tightening force necessary for calculating the retention rate will be described. That is, a constant speed extension type tensile tester (“Autograph (registered trademark)” AG-20KNI, 1 kN load cell manufactured by Shimadzu Corporation) can be used for measuring the extension force. The main body 2 is cut into a predetermined length to prepare a test piece, and the test piece is set to a constant-speed extension type tensile tester with a test piece width of 25 mm and a chuck interval of 100 mm. Then, the test piece is stretched to a tensile elongation of 20% at a rate at which the tensile elongation increases at 100% per minute, and the stress at that time is taken as the tensile force (N). After that, the stress applied to the test piece is pulled for 5 seconds. The tensile force (N) is measured as the stress applied to the test piece when the elongation is removed at a rate of 100% per minute and the tensile elongation is restored to 15%.
In addition, the said measuring method is an example, Comprising: The measuring method of each extension force and each tightening force is not specifically limited, It can measure by a well-known method.

  The yarn material constituting the main body 2 is not particularly limited as long as the retention rate is set within the above range, and may be any of natural fiber and chemical fiber, for example, polyamide fiber, polyester fiber, acrylic Fiber, cellulose fiber (cotton, rayon, polynosic, lyocell, etc.), polyurethane fiber, polyolefin fiber (polyethylene, polypropylene, etc.), acetate fiber, polyvinylidene chloride fiber, polyvinyl chloride fiber, wool (wool) , Animal hair, etc.) alone, or yarns mixed with these fibers can be used. As the type of yarn, monofilament, multifilament, twisted yarn, covered yarn, core yarn and the like can be used, and those subjected to stretch processing or bulk processing may be used.

As the knitting of the main body 2, various knitting structures such as warp knitting or weft knitting can be used. For example, double raschel fabric, flat knitted fabric, rubber knitted fabric (rib knitted fabric), pearl knitted fabric, tack knitted fabric, round Knitted fabrics, flat knitted fabrics, tricot fabrics, Russell fabrics, pile knitted fabrics, spliced yarn knitted fabrics, and the like can be used. Among these, a fabric that can maintain the retention rate within the above range and that can ensure air permeability and improve the wearing feeling is preferable, and a double raschel fabric is preferable.
Here, double raschel fabric is made by joining loops called loops while making a stitch from a single thread, and the elasticity of the loops can contribute to the stretching force, allowing air to permeate through this loop. I can do it. For this reason, air permeability can be ensured by using double Russell fabric. The retention rate is adjusted by inserting elastic yarns such as covered yarns of polyurethane fibers and rubber yarns into the yarns constituting these knitted structures, and adjusting the number of insertions of these elastic yarns. It is possible. As a cylindrical rubber knitted fabric (rib knitted fabric) in which elastic yarn such as polyurethane yarn or rubber yarn is inserted into a ground yarn such as polyamide-based yarn, it can be suitably knitted by a circular knitting machine or a sock knitting machine. Further, the outer surfaces of the support portions 2R and 2L can be formed by looping a yarn material in a loop shape to constitute a surface fastener, and the stay holding portions 21R and 21L can be engaged.

<3. Stay holder>
Next, the stay holding part provided in the joint orthosis 1 according to the present embodiment will be described. As shown in FIGS. 2 and 3, the joint orthosis 1 is a deformable support member that is connected to a support portion 2 </ b> R that covers the right side surface of the crus, which is a covering portion, at the time of wearing, and supports the right side surface of the crus. A stay holding portion 21R that holds a certain cast stay 31R is provided. As shown in FIGS. 4 and 5, the joint orthosis 1 is connected to a support portion 2 </ b> L that covers the left side surface of the crus, which is a covering portion, when worn, and is a deformable support that supports the left side surface of the crus. A stay holding portion 21L that holds a cast stay 31L as a member is provided.

  The stay holding portions 21R and 21L are connected to the support portions 2R and 2L in two directions, a circumferential direction of the support portions 2R and 2L and a direction perpendicular to the circumferential direction of the support portions 2R and 2L, respectively. A pocket for storing and holding the cast stay 31R is formed between the stay holding portion 21R and the support portion 2R. A surface for joining the support portion 2R of the stay holding portion 21R to join the stay holding portion 21R and the support portion 2R in a direction perpendicular to the circumferential direction of the support portion 2R and the circumferential direction of the support portion 2R. Pocket engaging surface fasteners 22a and 22b are formed. Similarly, the stay holding portion 21LR and the support portion 2L are joined to the surface of the stay holding portion 21L to be joined to the support portion 2L in a direction perpendicular to the circumferential direction of the support portion 2L and the circumferential direction of the support portion 2L. Pocket engaging surface fasteners 42a and 42b are formed.

  The cast stays 31 </ b> R and 31 </ b> L are formed in a shape that matches the foot to be attached, and a notch that matches the shape of the opening 9 when the joint device 1 is attached is formed in a portion corresponding to the heel. The cast stays 31R and 31L contribute to the control of torsion of the ankle joint and the movement displacement to the inside and outside of the ankle joint. The “deformability” of the deformable support member may be water curable or thermosetting, can be deformed before the support member is cured, and after being cured. Means something that is not easily deformed. In the present embodiment, water-curable cast stays 31R and 31L are used as an example. In the present embodiment, the cast stays 31R and 31L have notches, but the present invention is not limited to this and may have notches.

  Here, the base fabric of the cast stays 31R and 31L is flexible, has a low moisture content and high tensile strength, and is knitted, woven, and non-woven fabric made of a material that is non-reactive with polyurethane prepolymer composition and easily wettable. Etc. can be used. For example, there are knitted fabrics, woven fabrics, and nonwoven fabrics using glass fibers, aramid fibers, polyester fibers, polyolefin fibers, polyamide fibers, polyacrylic fibers, rayon fibers, cotton fibers and the like. In particular, a raschel knitted product using an aggregate (yarn) of glass fiber and polyester fiber is preferable, and the thickness is preferably about 0.08 to 5 mm.

  The water curable resin impregnated in the base fabric of the cast stays 31R and 31L is a resin that is cured by contact with moisture, such as a polyurethane prepolymer (obtained from the reaction of polyols and excess polyisocyanates). ) As the polyol, polyethylene glycol (PEG), a random or block copolymer of ethylene oxide and propylene oxide, or the like is used. The number average molecular weight of this polyol is preferably about 200 to 4000. When the molecular weight is 200 or less, the rigidity is large and hard and brittle, and when the molecular weight is 4000 or more, the rigidity is small and the strength as a fixing material may be insufficient. Moreover, well-known polyol can also be used with these polyols, for example, polypropylene glycol (PPG), bisphenol-type diol (BP, BPE), etc. can be mixed suitably and used. The ethylene oxide component of the polyol needs to be contained in the polyurethane prepolymer composition in an amount of about 12 wt% or more, preferably about 18 wt% or more.

<4. Fixed belt part>
Next, the first fixed belt portions 3a and 3b included in the joint orthosis 1 according to the present embodiment will be described. As shown in FIGS. 2 and 3, the first fixing belt portions 3 a and 3 b are connected to side edges of the stay holding portion 21 </ b> R in a direction perpendicular to the circumferential direction, and the ankle and the cast stay are attached when the joint device 1 is attached. 31R and 31L are fixed. In FIGS. 1 to 5, the first fixing belts 3a and 3b are separated into two. However, the first fixing belts 3a and 3b may be integrally formed, or three or more may be formed. Good.

  The first fixing belt portions 3a and 3b are formed so as to protrude from the stay holding portion 21R toward the circumferential direction of the main body portion 2, and a crus upper end tab 6a and a crus middle step tab 6b are formed at the respective distal ends. Has been. The first fixed belt portions 3a and 3b are provided in parallel to the circumferential direction. In a state where the joint orthosis 1 is mounted, the support portions 2R and 2L of the main body portion 2 cover the crus from the calf side, and the stay holding portions 21R and 21L holding the cast stays 31R and 31L from above are the crus And the stay holding portions 21R and 21L are fixed by the first fixing belt portions 3a and 3b. The length of the first fixing belt portions 3a and 3b in the circumferential direction (the direction of the arrow X in FIG. 1) is 30 to 120 mm, and preferably 96 to 110 mm. Further, the length of the first fixed belt portions 3a and 3b in the direction perpendicular to the circumferential direction (the direction of the arrow Y in FIG. 1) is 45 to 55 mm, and preferably 48 to 52 mm.

  Such first fixed belt portions 3a and 3b are made of a non-stretchable material used for forming the joint orthosis 1, and are formed, for example, as a knitted fabric knitted from a yarn material. For this reason, the first fixed belt portions 3a and 3b are configured not to expand and contract in the circumferential direction of the wearer's lower leg and in the direction perpendicular to the circumferential direction.

  The extending force in the circumferential direction of the first fixed belt portions 3a and 3b is 40 to 70N, preferably 45 to 65N. On the other hand, the extension force in the direction perpendicular to the circumferential direction of the first fixed belt portions 3a and 3b is 40 to 70N, preferably 45 to 65N. Further, the holding ratios of the first fixed belt portions 3a and 3b in the circumferential direction and the direction perpendicular to the circumferential direction are both 1.0 to 25%, preferably 4.0 to 21%.

  Since the retention rate of the first fixed belt portions 3a and 3b is set in the above range, the first fixed belt portions 3a and 3b are difficult to expand. Therefore, the first fixed belt portions 3a and 3b tend to contract after being expanded. It becomes difficult to apply extra force to do. For this reason, it is not necessary to apply unnecessary force to the cast stays 31R and 31L before curing. That is, when the cast stays 31R and 31L before curing are provided in the joint orthosis 1 and attached to the patient, the cast stays 31R and 31L are uncured by the first fixing belt portions 3a and 3b for fixing the joint orthosis 1 and the patient. Can be prevented from being deformed. Further, by extending and contracting the first fixed belt portions 3a and 3b in accordance with the expansion and contraction of the wearer's skin, followability to the body surface of the wearer is ensured, and the fit of the wearer can be improved. Furthermore, since the retention rate is set in the above range, a desired fixing force can be provided to the joint orthosis 1, and thus the wearer's ankle joint can be appropriately compressed. The definition of the retention rate in the first fixed belt portions 3 a and 3 b is synonymous with the definition of the retention rate in the main body portion 2.

  In the joint device 1 according to the present embodiment, the yarn material and knitting of the knitted fabric of the non-stretchable fabric of the first fixed belt portions 3a and 3b are the same as the yarn material and knitting of the knitted fabric of the main body 2 of the joint device 1. It is. Further, as the material and knitting of the first fixed belt portions 3a and 3b, it is preferable to use a pile knitted fabric made of a polyester fiber material. By using the pile knitted fabric, the holding ratio in the circumferential direction and the direction perpendicular to the circumferential direction can be set in the above range.

  The second fixed belt portion 4 is connected to the lower end portion of the main body portion 2 and includes a right end portion 7R and a left end portion 7L that are provided with forefoot tabs and protrude toward the circumferential direction of the joint device 1. . Further, the second fixed belt portion 4 has a sole attachment portion 7c attached to the sole of the wearer at a position in the center in the circumferential direction of the joint orthosis 1 and a position below the opening 9 of the main body portion 2. I have. In a state where the joint orthosis 1 is mounted, the rear part of the sole of the wearer is mounted on the sole mounting part 7c, the right end part 7R and the left end part 7L are pulled up from both sides of the foot to the instep, and the right end part A forefoot tab formed inside the portion 7R is placed on the outside of the left end portion 7L so as to cover the instep.

  The length of the second fixed belt portion 4 in the circumferential direction (arrow X direction in FIG. 1) is 30 to 90 mm, preferably 60 to 80 mm. Furthermore, the length of the second fixed belt portion 4 in the direction perpendicular to the circumferential direction (the arrow Y direction in FIG. 1) is 30 to 70 mm, and preferably 40 to 55 mm.

  Similar to the main body 2, the second fixed belt 4 is made of a non-stretchable material used for forming the joint orthosis 1 and is formed, for example, as a knitted fabric knitted from a yarn material. For this reason, the 2nd fixed belt part 4 becomes a structure which is hard to expand-contract in the circumferential direction of a wearer's lower leg part, and the direction perpendicular | vertical to the said circumferential direction.

The extension force in the circumferential direction of the second fixed belt portion 4 is 5 to 10N, preferably 6 to 8N. On the other hand, the extension force in the direction perpendicular to the circumferential direction of the second fixed belt portion 4 is 40 to 70 N, preferably 45 to 65 N. Further, the holding ratios in the circumferential direction and the direction perpendicular to the circumferential direction of the second fixed belt portion 4 are both 1.0 to 25%, preferably 4.0 to 21%.
Although it becomes difficult to expand and contract when the retention rate of the second fixed belt portion 4 is set within the above range, the second fixed belt portion 4 is expanded and contracted according to the expansion and contraction of the wearer's skin, and thereby the body surface of the wearer is reduced. Followability is ensured and the fit of the wearer can be improved.

  The third fixed belt portion 5 has a substantially rectangular elongated shape, and its central portion is connected to the back side of the sole mounting portion 7c of the second fixed belt portion 4 with the circumferential direction of the joint orthosis 1 as the longitudinal direction. Yes. At both ends of the third fixed belt portion 5, a surface fastener portion 8R for attaching to the outer surface of the stay holding portion 21L and a surface fastener portion 8L for attaching to the outer surface of the stay holding portion 21R are formed. Yes. When the joint orthosis 1 is mounted, the surface fastener portion 8L is attached to the outer surface of the stay holding portion 21R by pulling up the third fixing belt portion 5 from the left side surface to the vicinity of the right side ankle on the instep of the wearer. Then, the third fixing belt portion 5 on the opposite side is crossed and pulled up to attach the surface fastener portion 8R to the outer side surface of the stay holding portion 21L so as to cover the instep.

  The length of the third fixed belt portion 5 in the circumferential direction (arrow X direction in FIG. 1) is 190 to 240 mm, and preferably 200 to 230 mm. Further, the length of the third fixed belt portion 5 in the direction perpendicular to the circumferential direction (the direction of the arrow Y in FIG. 1) is 45 to 55 mm, preferably 48 to 52 mm.

  Unlike the first fixed belt portions 3a and 3b, the material of the third fixed belt portion 5 uses an elastic fabric. Further, in the third fixed belt portion 5, since it is not necessary to form the yarn material on the outer surface in a loop shape, for example, a flat rubber, an oligomer, a rubberized cloth or the like can be used. Among these, it is preferable to use an oligomer.

  Thus, since the material of the third fixed belt portion 5 is different from the material of the first fixed belt portions 3a and 3b, the retention rate in the circumferential direction and the direction perpendicular to the circumferential direction is caused by this. It is different from those of the belt portions 3a and 3b. That is, the extension force in the circumferential direction related to the third fixed belt portion 5 is 5 to 20 N, preferably 10 to 15 N. Further, the retention rate in the circumferential direction of the third fixed belt portion 5 is 50 to 75%, preferably 53 to 74%. The retention rate in the direction perpendicular to the circumferential direction of the third fixed belt portion 5 may be set to an arbitrary retention rate as long as the retention rate in the circumferential direction of the third fixed belt portion 5 can be maintained.

  Here, if the retention rate in the circumferential direction in the third fixed belt portion 5 is greater than 75%, the third fixed belt portion 5 itself tends to be stretched, and when the joint is bent, the third fixed belt portion 5 is not attached to the body surface of the wearer. Although it is easy to follow, when the joint is extended, the third fixed belt portion 5 is not easily contracted, and the followability during the extension movement is not secured, which is not preferable. On the other hand, when the holding ratio in the circumferential direction is less than 50%, the stretchability of the third fixed belt portion 5 itself is impaired, and it is not preferable because it cannot follow the extension movement and bending movement of the joint.

  Here, it is preferable that the opening width in the circumferential direction of the opening 9 is set to 40 to 80 mm. By setting the opening width in the circumferential direction of the opening 9 in the above range, it becomes a mark at the time of mounting, and the mounting work can be simplified. In addition, the extension movement and bending movement of the ankle joint are not hindered, and an appropriate pressure feeling can be given around the ankle of the wearer.

  In addition, in the joint orthosis 1 which concerns on this embodiment shown in FIGS. 1-5, a surface fastener is provided in the edge part of 1st fixing belt part 3a and 3b, 2nd fixing belt part 4, and 3rd fixing belt 5, respectively. The thread holding material is raised in a loop shape on the outer surface of the stay holding portions 21R and 21L and the second fixed belt portion 4 and is engaged, but the structure to be engaged is not limited to this, Surface fasteners are provided on the outer side surfaces of the stay holding portions 21R and 21L and the second fixing belt portion 4, and the first fixing belt portions 3a and 3b, the second fixing belt portion 4 and the third fixing belt 5 are end portions made of yarn material. It is good also as a structure raised in the shape of a loop. Further, the structure for engaging them is not limited to a hook-and-loop fastener, and a known engaging structure can be adopted. For example, a buckle or a snap button may be used.

<5. Example of joint orthosis installation procedure>
Next, an example of a procedure for mounting the joint orthosis 1 according to the present embodiment will be described with reference to FIGS. In the present embodiment, an example of a procedure for mounting on the wearer's right foot 61R will be described. In addition, in this embodiment, although the joint orthosis 1 has shown the state with which a wearer's right leg is mounted | worn, the joint orthosis which concerns on this invention can be mounted | worn with a wearer's right and left leg.

  First, the cast stays 31R and 31L stored in the joint orthosis 1 are prepared. First, the cast stays 31R and 31L before curing are taken out from the aluminum pouch. Next, the removed cast stays 31R and 31L are hydrated. Thereafter, excess water is removed from the water-containing cast stays 31R and 31L. Then, the cast stays 31R and 31L from which excess moisture has been removed are stored in the pockets between the support part and the stay holding part from the direction of the arrow in FIG. 7, and the pockets are closed with the hook-and-loop fasteners 22a and 22b.

  Then, the cast stay 31R from which excess moisture has been removed is stored in the pocket between the support portion 2R and the stay holding portion 21R from the direction of the arrow P in FIG. 7, and the pocket is closed with the hook-and-loop fasteners 22a and 22b. Similarly, the cast stay 31L from which excess water has been removed is stored in the pocket between the support portion 2L and the stay holding portion 21L from the direction of the arrow Q in FIG. 7, and the pocket is closed with the hook-and-loop fasteners 42a and 42b.

  After housing the cast stays 31R and 31L in the joint orthosis 1, the joint orthosis 1 is attached to the right foot 61R which is the affected part of the wearer. First, the joint orthosis 1 is in a front-open state, the rear part of the sole of the wearer is attached to the sole attachment part 7c, and the wearer's heel is inserted into the opening 9 of the main body part 2 of the joint orthosis 1.

  Pull up the right end 7R and left end 7L from both sides of the foot to the instep, and cover the instep with the forefoot tab formed inside the right end 7R on the outside of the left end 7L. Engage with.

  Next, the lower leg part is covered with the support parts 2R and 2L of the main body part 2 from the calf side, and the stay holding parts 21R and 21L holding the cast stays 31R and 31L from the upper side cover the lower leg part, and the first fixing The lower crus middle step tab 6b of the belt portion 3b is engaged with the outer surface of the stay holding portion 21L. Similarly, the lower leg upper end tab 6a of the first fixed belt portion 3a is engaged with the outer surface of the stay holding portion 21L.

  Next, the third fixing belt portion 5 is pulled up from the left side surface to the right side of the upper side of the wearer's foot 61R to attach the surface fastener portion 8L to the outer side surface of the stay holding portion 21R, and is crossed to oppose it. The third fixing belt portion 5 on the side is pulled up to attach the surface fastener portion 8R to the outer side surface of the stay holding portion 21L to fix the ankle.

  Furthermore, the upper end of the joint orthosis 1 may be fixed by a crus fixing strap 1001 shown in FIG. The crus fixing strap 1001 has a substantially rectangular elongated shape, and is formed with hook and loop fastener portions 1010a and 1010b at both ends, and the end portion where the hook and loop fastener portion 1010a is formed and the center portion of the crus fixing strap 1001. A surface fastener portion 1010c is formed near the middle.

  As shown in FIG. 11, the crus fixing strap 1001 is pulled from the rear calf side of the foot 61R to the front shin side so that the end portion where the surface fastener portion 1010a is formed so as to cover the right side surface of the foot 61R. It fixes to the main body 2 with the part 1010a and 1010c. Thereafter, the end portion where the surface fastener portion 1010b is formed so as to cover the left side surface of the foot 61R is pulled toward the front shin side, and the surface fastener portion 1010b is engaged with the crus fixing strap 1001 on the side fixed to the main body 2. To do.

  As shown in FIG. 12, in a state where the ankle is fixed by the joint orthosis 1, the cast stays 31R and 31L wait for the cast stays 31R and 31L to conform to the shape of the foot 61R and harden.

  As described above, the joint device 1 according to the present embodiment has the cast fixtures 31R and 31L before being hardened on the joint device 1 because the first fixing belt portions 3a and 3b have the retention rate as described above. Even if it is worn by the wearer, it is possible to suppress unnecessary deformation from occurring before the cast stays 31R and 31L are cured.

In addition, the mounting procedure of the joint orthosis 1 according to the present embodiment is not limited to the mounting procedure described above. For example, the procedure of fixing the second fixing belt portion 4 before housing the cast stays 31R and 31L. You may go. Moreover, the joint orthosis 1 can be used not only for an ankle but also for a wrist, a waist, and other extremities. Furthermore, the joint orthosis 1 according to the present embodiment can be mounted without using the cast stays 31R and 31L depending on the state of the ankle affected part.

  Hereinafter, the holding | maintenance rate of the joint orthosis which concerns on the form for implementing this invention based on an Example is demonstrated. In addition, the Example described below shows an example of the representative Example of the joint orthosis concerning the form for implementing this invention, and, thereby, the joint concerning the form for implementing this invention The scope of the brace is not interpreted narrowly. In the following embodiments, an example in which the joint device of the present invention is applied to a device covering an ankle joint is shown.

  The inventors measured the retention rate (Example 1 and Example 2) from the first fixed belt part to the third fixed belt part of the joint orthosis according to the embodiment shown in FIGS. 1 to 5. Further, as Comparative Example 1, the retention rate of the third fixing belt portion from the first fixing belt portion of the joint orthosis using all stretchable fabrics was measured. And the extension force of the circumference direction in each joint orthosis and the extension force of the direction perpendicular | vertical to a circumference direction were measured. Here, the extension force in the circumferential direction is an index of the fixing force of the joint orthosis at the time of wearing.

<Example 1>
In the joint orthosis according to the first embodiment, the length of the first fixed belt portion in the circumferential direction is 120 mm, and the length in the direction perpendicular to the circumferential direction is 52 mm. The length of the second fixed belt portion in the circumferential direction is 90 mm, and the length in the direction perpendicular to the circumferential direction is 70 mm. Further, the length of the third fixed belt portion in the circumferential direction is 190 mm, and the length in the direction perpendicular to the circumferential direction is 48 mm.

  The fabric of the first fixed belt portion of Example 1 is a double raschel fabric, the fabric of the second fixed belt portion is a pile knitted fabric, and the third fixed belt portion is a urethane rubber fabric. As a result of measuring the extension force of each part provided with the fabric, the extension force in the circumferential direction of the first fixed belt portion is 58.5N, and the extension force in the direction perpendicular to the circumference direction is 50.2N. Further, the extension force in the circumferential direction of the second fixed belt portion is 7.2 N, the extension force in the direction perpendicular to the circumferential direction is 49.3 N, and the extension force in the circumferential direction of the third fixed belt portion is 11 .7N.

  From this, when calculated using the above equation 1, the retention rate of the first fixed belt portion of Example 1 is 20%, the retention rate of the second fixed belt portion is 23%, and the third fixed belt portion. Is 59%.

<Example 2>
In the joint orthosis according to the second embodiment, the length of the first fixed belt portion in the circumferential direction is 120 mm, and the length in the direction perpendicular to the circumferential direction is 52 mm. The length of the second fixed belt portion in the circumferential direction is 90 mm, and the length in the direction perpendicular to the circumferential direction is 70 mm. Further, the length of the third fixed belt portion in the circumferential direction is 190 mm, and the length in the direction perpendicular to the circumferential direction is 48 mm.

  The fabric of the first fixed belt portion of Example 2 is a double raschel fabric, the fabric of the second fixed belt portion is a pile knitted fabric, and the third fixed belt portion is a urethane rubber fabric. As a result of measuring each part provided with the cloth, the extension force in the circumferential direction of the first fixed belt portion is 61 N, and the extension force in the direction perpendicular to the circumferential direction is 62.7 N. Further, the extension force in the circumferential direction of the second fixed belt portion is 7.2 N, the extension force in the direction perpendicular to the circumferential direction is 49.3 N, and the extension force in the circumferential direction of the third fixed belt portion is 11 .7N.

  From this, when calculated using the above equation 1, the retention rate of the first fixed belt portion of Example 2 is 13%, the retention rate of the second fixed belt portion is 5%, and the third fixed belt portion. Is 62%.

<Comparative Example 1>
In the joint orthosis according to Comparative Example 1, the length of the first fixed belt portion in the circumferential direction is 120 mm, and the length in the direction perpendicular to the circumferential direction is 52 mm. The length of the second fixed belt portion in the circumferential direction is 90 mm, and the length in the direction perpendicular to the circumferential direction is 70 mm. Further, the length of the third fixed belt portion in the circumferential direction is 190 mm, and the length in the direction perpendicular to the circumferential direction is 48 mm.

  The fabric of the first fixed belt portion of Comparative Example 1 is a double raschel fabric, the fabric of the second fixed belt portion is a pile knitted fabric, and the third fixed belt portion is a urethane rubber fabric. As a result of measuring each part provided with the cloth, the extension force in the circumferential direction of the first fixed belt portion is 7.8 N, and the extension force in the direction perpendicular to the circumferential direction is 7.8 N. Further, the extension force in the circumferential direction of the second fixed belt portion is 7.8 N, and the extension force in the direction perpendicular to the circumferential direction is 7.8 N, which is per unit length in the circumferential direction of the third fixed belt portion. The elongation force of 4.3N is 4.3N.

  From this, when calculated using the above Equation 1, the retention rate of the first fixed belt portion of Comparative Example 1 is 54%, the retention rate of the second fixed belt portion is 54%, and the third fixed belt portion. The retention rate is 72%.

<Retention rate of joint orthosis according to Examples 1 and 2 and Comparative Example 1>
When the retention rates of the joint orthosis according to Examples 1 and 2 and Comparative Example 1 are compared, there is no significant difference in the retention rates of the third fixed belt portion using the stretchable fabric. On the other hand, the retention rate of the first fixed belt portion and the second fixed belt portion of Examples 1 and 2 using the non-stretchable fabric is significantly lower than that of Comparative Example 1. From this result, the retention ratio of the first fixed belt portion and the second fixed belt portion is preferably in the range of 1.0 to 25%, and more preferably in the range of 4.0 to 21%. Therefore, if the first fixed belt portion having a holding ratio in the range of 1.0 to 25% is used, the first fixed belt portion is difficult to expand. It becomes difficult to apply extra power. For this reason, even if it equips with a wearer after providing the cast stay before hardening to a joint orthosis, it will become difficult to apply extra force to the cast stay before hardening. Thereby, it can suppress that an unnecessary deformation | transformation arises in a cast stay. In addition, by extending and contracting the first fixed belt portion in accordance with the expansion and contraction of the wearer's skin, followability to the wearer's body surface is ensured, and the fit of the wearer can be improved. In addition, when the second fixing belt portion having a retention rate in the range of 1.0 to 25% is used, the body surface of the wearer is expanded and contracted according to the expansion and contraction of the wearer's skin similarly to the first fixing belt portion. Can be ensured, and the fit of the wearer can be improved.

DESCRIPTION OF SYMBOLS 1 Joint orthosis 2 Main-body part 2R, 2L Support part 3a, 3b 1st fixing belt part 4 2nd fixing belt part 5 3rd fixing belt part 6a, 6b Leg part tab 7R, 7L End part (front leg tab)
7c Foot mounting portion 8R, 8L, 1010a, 1010b, 1010c Surface fastener portion 9 Opening portion 21R, 21L Stay holding portions 22a, 22b, 42a, 42b Pocket engagement surface fasteners 31R, 31L Deformation support member 61R Right foot 1001 Lower leg portion Fixing strap

Claims (9)

A support part that covers the covering portion of the human body;
A holding portion connected to the support portion and holding a deformable support member for supporting the covering portion;
At least one fixed belt portion connected to the holding portion;
A joint orthosis comprising:   The joint device according to claim 1, wherein the holding portion is connected to the support portion in a circumferential direction of the support portion and in a direction perpendicular to the circumferential direction of the support portion.   The joint orthosis according to claim 1 or 2, wherein a retention rate of the fixed belt portion is 1.0 to 25%.   The joint orthosis according to claim 1, further comprising: a first fixing belt portion that fixes the covering portion and the deformable support member.   The joint orthosis according to claim 4, wherein the covering portion is an ankle joint. A second fixing belt for fixing the instep,
The joint orthosis according to claim 5, further comprising a third fixing belt portion that fixes an instep and a back surface of the foot.   The joint orthosis according to claim 6, wherein a retention rate of the third fixed belt portion is 50 to 75%.   The joint device according to claim 6, wherein the support part, the holding part, the first fixing belt part, and the second fixing belt part are formed of a cloth containing polyester. The joint orthosis according to claim 6, wherein the third fixing belt is formed of a cloth containing urethane.

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