WO2017182451A1 - Dispositif de connexion destiné à être fixé à un membre ou une orthèse prothétique - Google Patents

Dispositif de connexion destiné à être fixé à un membre ou une orthèse prothétique Download PDF

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Publication number
WO2017182451A1
WO2017182451A1 PCT/EP2017/059148 EP2017059148W WO2017182451A1 WO 2017182451 A1 WO2017182451 A1 WO 2017182451A1 EP 2017059148 W EP2017059148 W EP 2017059148W WO 2017182451 A1 WO2017182451 A1 WO 2017182451A1
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WO
WIPO (PCT)
Prior art keywords
connection device
inner peripheral
cover
prosthetic
orthosis
Prior art date
Application number
PCT/EP2017/059148
Other languages
English (en)
Inventor
Christoffer LINDHE
Simon SVEDBERG
Christopher Henriksson
Richard DYKES
Jakob Nilsson
Original Assignee
C Lindhextend Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by C Lindhextend Ab filed Critical C Lindhextend Ab
Publication of WO2017182451A1 publication Critical patent/WO2017182451A1/fr

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Classifications

    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5001—Cosmetic coverings

Definitions

  • the present invention relates to a connection device for attaching to a prosthetic limb or to a part of an orthosis. It further relates to a cover for attaching to an arm or leg prosthesis or to a part of an orthosis, the cover comprising the connection device.
  • auxiliary equipment may be covers for the basic prosthetic structure.
  • Such covers may have a purely protective function, a combined protective and aesthetic/cosmetic function or a purely cosmetic function.
  • personalized prosthetic covers may have a purely protective function, a combined protective and aesthetic/cosmetic function or a purely cosmetic function.
  • personalized prosthetic covers may have a purely protective function, a combined protective and aesthetic/cosmetic function or a purely cosmetic function.
  • personalized prosthetic covers as well as to provide of other types of functional units such as holders for tools, electronic devices, etc. in order to achieve an individually adapted functionality and appearance of the prosthesis.
  • amputees as well as people using orthotic devices may wish to use different devices and combinations of devices at different occasions.
  • an amputee may wish to use a different type of prosthetic cover when wearing clothes which expose the prosthesis than when the prosthesis is concealed beneath the wearer's clothes.
  • connection devices which require at least one hand for holding the prosthetic cover in place while attaching it to the prosthesis.
  • connection devices which require at least one hand for holding the prosthetic cover in place while attaching it to the prosthesis.
  • the existing auxiliary devices are often difficult for the user to attach without help from another person.
  • the attachment process is time consuming and cumbersome, which makes frequent changes of auxiliary devices for prostheses impractical.
  • the auxiliary devices include protective covers for prostheses and orthoses; cosmetic/esthetic covers for prostheses and orthoses; covers having both an esthetic/cosmetic function and a protective function; orthoses; personalized and/or functional units such as tools and electronic equipment; holders for items and devices, etc.
  • a further object of the invention is to provide a cover for attaching to an arm prosthesis or a leg prosthesis or an orthosis, which is easy to rapidly attach. This and other objects may be achieved by the subject-matter of claim 14.
  • the connection device adapted for attachment to a rod-shaped element on a leg prosthesis or an arm prosthesis or on an orthosis comprises a first part and a second part.
  • the first part and the second part are releasably connectable to each other and form an encircling unit together.
  • the encircling unit comprises a channel for encircling a part of the prosthetic limb or orthosis.
  • the circumference of the channel is constituted by an inner peripheral circumference of the first part and an inner peripheral circumference of the second part.
  • the first part and the second part comprise fastening members, respectively, for releasably connecting the first part to the second part.
  • At least one of the first and the second parts comprises a portion which is adapted for carrying an auxiliary device.
  • connection device is characterized in that the inner peripheral circumference of the first part is greater than the inner peripheral circumference of the second part.
  • connection device of this kind By having a connection device of this kind several advantageous effects may be achieved.
  • a positive effect is the improved easiness and rapidity by which the connection device can be attached to an artificial limb or an orthosis.
  • the inner peripheral circumference of the first part of the connection device being greater than the inner peripheral circumference of the second part of the connection device implies that the first part of the connection device contributes more than half of the circumference of the channel of the encircling unit which is formed when the two parts of the connection device are connected to each other.
  • the channel in the encircling unit may have a regular circumferential shape, such as a circular shape or may have a shape deviating from a perfect circular shape, as set out herein.
  • the channel may have an inner circumference which is partly defined by one or more circle segment and partly by one or more segment having another shape such as a linear shape.
  • the inner channel may comprise protruding elements, such as ridges or knobs and/or inset elements such as dimples and grooves.
  • the first part of the connection device can be coupled to a prosthetic limb or an element of an orthosis by simply pushing the first part onto a part of a prosthetic limb or orthosis.
  • the part of a prosthetic limb or an orthosis to which a connection device as disclosed herein is arranged to be attached is a rod-shaped element having an outer periphery.
  • the channel in the annual unit formed by the first and second parts of the connection device as disclosed herein, is preferably configured such that it will fit snugly around the intended part of the prosthetic limb or the orthosis with the first part encircling a larger proportion of the circumference of the prosthetic limb or orthosis than the second part.
  • connection device When attaching the connection device to the prosthetic limb or to an orthosis, the first part of the connection device is pressed against the rod-shaped element on the prosthetic limb or of the orthosis from the side of the connection device which is provided with fastening members for fastening the first part of the connection device to the second part of the connection device.
  • the fastening members are arranged at outer ends of the first part of the connection device which outer ends between them define a passage into the first part channel which is the part of the channel in the encircling unit which is formed in the first part of the connection device.
  • the width of the passage into the first part channel is smaller than a largest width of the first part channel which means that a rod-shaped element on a prosthetic limb having a largest width corresponding to the largest width of the first part channel cannot be introduced into the first part channel without application of a force.
  • the width of the passage into the first part channel may be from 98 percent to 60 percent of a largest width of the first part channel, more preferably from 98 percent to 75 percent, most preferably from 98 percent to 85 percent.
  • the first part of the connection device is made of a resiliency flexible material
  • the outer ends of the first part are caused to flex apart until the rod-shaped element on the prosthetic limb or the orthosis can pass between the outer ends of the first part and into the first part channel, where after the outer ends of the first part resiliency flex back and lock the inserted part of the prosthetic limb or the orthosis in the first part channel.
  • the surfaces of the outer ends of the first part may be angled such that the passage into the first part channel narrows in a direction into the first part channel.
  • the snap-in fastening of the first part of the connection device on the prosthetic limb or orthosis provides for an initial automatic retention of the first part of the connection device and any auxiliary device carried by the first part of the connection device on the prosthetic limb or orthosis.
  • the first part is clamped onto a target portion of the prosthetic limb or orthosis and is provisionally held in place in a self-supporting manner during the rest of the attachment procedure.
  • the second part of the connection device can easily be connected to the first part by means of the fastening members of the first and second part respectively and without having to worry about at the same time holding the first part in a correct position on the prosthetic limb or orthosis.
  • connection device as disclosed herein has the positive effect of enabling attachment using one hand only. This is advantageous for users of the connection device as it greatly simplifies attachment of the connection device to a prosthetic limb.
  • the connection device as disclosed herein can easily be handled by a user without the need for assistance from a further person.
  • the connection device offers a means for swiftly and easily applying and removing an auxiliary device to or from a prosthetic limb or orthosis as well as for changing between different devices.
  • the connection device considerably improves the possibilities e.g. of an amputee to control and manage the use of his or her own prosthesis.
  • connection device as disclosed herein may offer particular advantages for users 5 having only one hand, or having reduced functionality in one or both hands or arms.
  • the connection device also provides for rapid connectability. This is advantageous as it enables, for example, an amputee using a prosthetic limb to easily change between different auxiliary devices in different situations, such as when performing different activities, thereby increasing quality of life as well as functionality and
  • connection device comprising a first and a second part which together encircle the limb in question is that it enables an improved variation and flexibility in the type and form of auxiliary device or devices which can be attached, for example, on a prosthetic limb.
  • An auxiliary device can be carried by one or both of the first and second parts of the connection device, such as first and
  • connection device 15 second parts of a prosthetic cover or of an orthosis or a cover or other supplement for an orthosis being carried by the first and second parts of the connection device, respectively. Furthermore, the first and second parts of the connection device can carry two different auxiliary devices respectively. It is further envisaged that auxiliary devices may be releasably attached to the connection device, such that an auxiliary device may be
  • connection device 20 detached from the connection device and, optionally, substituted for another auxiliary device.
  • the inner peripheral circumference of the first part may preferably be from 58 percent to 90 percent of the circumference of the channel of the encircling unit, more preferably from 25 58 percent to 80 percent, most preferably from 58 percent to 75 percent.
  • the channel in the encircling unit may have a cross-sectional shape, chosen from the group of: circular channels, modified circular channels, octagonal channels and hexagonal channels.
  • a modified circular channel is a channel having a 30 cross-sectional shape which is defined to at least 65% by an arc of a circle, but to less than 100% of an arc of a circle.
  • Artificial limbs generally have at least one rod-shaped element having a circular, modified circular, octagonal or hexagonal cross-section onto which a connecting device as
  • connection device as disclosed herein may also be used for attaching auxiliary equipment to an element of an orthosis, such as covers, body fill-out parts, and any other type equipment, as disclosed herein.
  • a section of the inner peripheral circumference of the first part may comprise an engagement structure which is adapted for engagement with the prosthetic limb or orthosis.
  • the engagement structure may further improve the initial attachment of the first part of the connection device to the prosthetic limb or orthosis. It adds to the snap-in function inherent in the structure of the first part and being an effect of the inner peripheral circumference comprising more than half of the circumference of the encircling unit.
  • the engagement structure has the positive effect of further improving fixation of the first part of the connection device on the prosthetic limb or orthosis.
  • the engagement structure may provide an inherent guiding of the first part of the connection device into a correct position during attachment.
  • the engagement structure can stabilize the first part of the connection device and may e.g. provide a rotational restriction of the first part of the connection device when attached to a prosthetic limb or orthosis.
  • the engagement structure can provide inherent guiding to achieve the correct orientation and/or alignment of the first part of the connection device on the prosthetic limb. All of the above mentioned positive effects improve ease of handling and control of correct attachment.
  • the engagement structure may be an integral part of the inner peripheral circumference of the first part, such as a portion of the surface on the inner peripheral circumference being shaped to mate with a correspondingly shaped surface on a rod-shaped element on a prosthetic limb or orthosis or being provided with friction enhancing means such as a roughened and/or rubbery surface, etc.
  • This provides for a simple construction of the connection device with a minimum of parts and components which also contributes to low manufacturing costs. It further provides an improved engagement between the connection device, i.e. the first part and the prosthetic limb, and in particular, it may aid in retaining the first part of the connection device in a correct position on the prosthetic limb or orthosis when connecting the second part with the first part.
  • the engagement structure of the first part may comprise or consist of a planar surface on the inner peripheral circumference of the first part.
  • the planar surface may form part of a channel in the encircling unit having a modified circular shape, as defined herein, or may be a side of a channel having a polygonal cross-sectional shape. This may provide for improved attachment of the first part on a prosthetic limb or orthosis as the planar surface may mate with a corresponding planar surface on a part of a prosthetic limb and may prevent the first part of the connection device from rotating in relation to the prosthetic limb.
  • this engagement structure can provide for inherent control of correct orientation and alignment of the connection device on a prosthetic limb given that it is adapted for engagement with a correspondingly mating structure on the limb. This has the positive effect of further improving the ease of handling and rapid connectability of an auxiliary device being attached to a prosthetic limb or orthosis using the connection device as it allows a user to quickly identify a correct rotational position of the connection device in relation to the corresponding part of the prosthetic limb or orthosis.
  • the engagement structure may comprise or consist of one or more protruding elements, i.e. one or more male engagement elements. This provides for a further improved engagement between the first part and a prosthetic limb or orthosis.
  • the enhanced engagement between the first part of the connection device and the prosthetic limb is in addition to the engagement feature which is inherent in the structure of the first part having an inner peripheral circumference comprising more than half of the circumference of the encircling unit.
  • An engagement structure comprising or consisting of protruding elements such as one or more ridges, knobs, etc.
  • the engagement structure may comprise or consist of one or more female engagement elements such as grooves, dimples, etc. which are arranged to engage with
  • the engagement structure of the inner peripheral circumference of the first part may comprise or consist of a friction enhancing material.
  • the friction enhancing material may be any suitable friction enhancing material such as natural or synthetic rubber, a roughened surface on the first part, etc.
  • a friction enhancing material may be applied as a coating or as a layer of material which is attached to the inside of the first part of the connection device.
  • the friction enhancing material may be formed integrally with the first part of the connection device, such as by injection moulding or after treatment of a formed first part.
  • connection device It is further possible to provide also the inner peripheral circumference of the second part of the connection device with engagement elements, friction enhancing material, etc. as disclosed for the first part of the connection device.
  • connection device as disclosed herein is adapted for attachment to a rod-shaped element on a leg prosthesis or an arm prosthesis or on an orthosis.
  • a rod-shaped element on a leg prosthesis may e.g. be a wrist portion of a leg prosthesis.
  • the rod-shaped component of e.g. a leg prosthesis may be a wrist portion. It is common to manufacture such parts in standardized sizes in order to facilitate coupling of the leg prostheses to a foot prostheses and to connection arrangements for attaching auxiliary devices to the prostheses. Accordingly, it may be preferred that the connection device is sized and configured for cooperation with standardized rod-shaped components of a prosthetic limb.
  • the connection device may comprise an auxiliary device or be adapted for fastening of an auxiliary device for an arm or leg prosthesis or an orthosis.
  • the auxiliary device may be chosen from the group of: a protective prosthetic cover, a cosmetic cover, a combined prosthetic and cosmetic cover, a personalized and/or functional unit.
  • Useful auxiliary devices include electronic devices, such as mobile phones, as well as tools, bags, holders and other equipment which a user may find handy to carry on the body.
  • the fastening members arranged at the ends of the first and second parts of the connection device are preferably mating fastening members.
  • the fastening members may be chosen from the group of: magnets, screw-thread connections, male/female coupling elements, snap-in connections and slide-in connections.
  • connection device This provides for a simple locking engagement which is easy to lock and which maintains the connection device in an engaged position, forming an encircling unit which may encircle a rod-shaped element on a prosthetic limb or an orthosis.
  • magnets makes attaching of the connection device easy also for persons having reduced hand mobility.
  • Using magnets further provides for a natural correct positioning and attachment of the second part to the first part. The magnetic attraction forces causes the second part to automatically be brought to the desired position on the first part and no additional force needs to be applied to complete the engagement between the parts. This is advantageous since attachment can be made with a single hand and requiring minimal dexterity and hand strength. Even further, the use of magnets provides a rapid connection of the connection device.
  • connection device is easily and rapidly released by using for example hand force to separate the two parts. It further has the positive effect of providing for easy manufacturing and low manufacturing costs.
  • the above mentioned advantages are also applicable to the use of snap-in connections.
  • the use of screw-thread connections although somewhat less easy to manipulate may provide for a stronger attachment to the prosthetic limb or orthosis.
  • a threaded fastening on the connection device may be desirable in order to ascertain that the connection device remains secured to the prosthetic limb or orthosis as long as the user so wishes, and is only releasable by unscrewing. This is advantageous for example in cases where an amputee uses an auxiliary device attached to the prosthesis by means of the connection device and in which cases it is of functional importance that the auxiliary device does not release due to an applied external force.
  • One example could be during sports activities.
  • connection between the first and second parts of the connection device comes apart upon impact, such as when a user of a prosthetic cover falls and the prosthetic cover hits a ground surface.
  • Fasteners such as magnets which self-release without damage to the connection under such circumstances may help in dampening the fall, and may also protect the prosthetic cover and the prosthesis from damage.
  • the inner peripheral circumference of the encircling unit may be adapted to a standard circumference of a rod-shaped element on an arm or leg prosthesis. This has the positive effect that the connection device can be used on/attached to a wide diversity of arm or leg prostheses.
  • the resiliency flexible material may be a polymeric material, such as a thermoplastic material.
  • a preferred thermoplastic material may be polyamide.
  • Other useful materials may be composites of polymers and reinforcing materials, e.g. fibers or particles, metals such as aluminium or titanium, rubber or wood.
  • Using a polymeric material such as polyamide for the connection device provides a light-weight, yet tough and resistant connection device, and in particular, it provides sufficient resilient flexibility to the connection device. This is advantageous since it contributes to the 'snap-on' feature of the first part when attaching the connection device to a prosthetic limb. Further it provides for easy manufacturing and low manufacturing costs as thermoplastic polymers can be formed into a desired shape by production methods such as 3D-printing and injection moulding.
  • the present disclosure also relates to a prosthetic cover for attaching to an arm prosthesis or to a leg prosthesis.
  • the prosthetic cover comprises a connection device as disclosed herein.
  • the prosthetic cover comprises a first part.
  • the first part of the prosthetic cover is attached to or attachable to the first part or the second part of the connection device.
  • the cover can be adapted for being attached to either part of the connection device, allowing a user to choose the location of the cover part in relation to the prosthesis.
  • the cover part has a single designated attachment location.
  • the prosthetic cover according may further comprise a second part.
  • the second part of the prosthetic cover may be attached to or attachable to the other, of the first and the second parts, of the connection device.
  • Fig. 1 a shows a connection device as disclosed herein in a non-connected state
  • Fig. 1 b shows a connection device as disclosed herein in a connected state
  • Fig.l c shows a connection device as disclosed herein in a connected state and being attached to a part of a prosthetic limb
  • Fig. 2 shows a part of a connection device as disclosed herein and comprising an engagement structure of a first type
  • Fig. 3 shows a part of a connection device as disclosed herein and comprising an engagement structure of a second type
  • Fig. 4 shows a prosthetic cover as disclosed herein and being attached to a prosthetic leg
  • Fig. 5 shows a prosthetic cover as disclosed herein and being attached to a prosthetic leg
  • Fig. 6 shows a prosthetic cover comprising a connection device as disclosed herein;
  • Fig. 7 shows a prosthetic cover comprising a connection device as disclosed herein.
  • connection devices and the prosthetic covers shown in the figures are provided as examples only and should not be considered limiting to the invention as disclosed herein.
  • the connection devices shown in the figures are intended for fastening to a prosthetic limb. However, it is to be understood that the connection devices are equally applicable for attaching auxiliary devices to a rod-shaped element on an orthosis.
  • connection device 1 which is adapted for attachment to a rod-shaped element on a prosthetic limb, such as an artificial arm or leg.
  • the connection device 1 comprises a first part 3 and a second part 4.
  • the first part 3 and the second part 4 of the connection device 1 are releasably connectable to each other.
  • the encircling unit 5 comprises a through-going channel 6 which is shaped and sized for being applied to a target part of the prosthetic limb and for encircling the target part of the limb.
  • the circumference of the channel 6 is constituted by the combination of the inner peripheral circumference 1 1 of the first part 3 of the connection device 1 and the inner peripheral circumference 12 of the second part 4 of the connection device 1.
  • the inner peripheral circumference 1 1 of the first part 3 is greater than the inner peripheral circumference 12 of the second part 4.
  • a length of the inner peripheral circumference 1 1 of the first part 3 constitutes more than half of the length of the circumference of the channel 6.
  • the length of the inner peripheral circumference 1 1 of the first part 3 may preferably be from 58 percent to 90 percent of the length of the circumference of the channel 6 of the encircling unit 5, more preferably from 58 percent to 80 percent, most preferably from 58 percent to 75 percent.
  • a section 13 of the inner peripheral circumference 1 1 of the first part 3 comprises an engagement structure 15 being adapted for engagement with the prosthetic limb.
  • the engagement structure 15 is in Figs. 1 a and 1 b depicted as a layer of a friction enhancing material.
  • the engagement structure 15 is an optional feature of the connection device 1.
  • the engagement structure on the second part 4 may be of the same type as the engagement structure on the first part or may be of a different type, e.g. as illustrated in Figs. 2 and 3.
  • the engagement structure 15 may form an integral part of the inner peripheral circumference 1 1 of the first part 3 as illustrated in Figs. 2 and 3 or may be applied to a pre-formed first part 3 as a coating or a layer of a high friction material as is illustrated by the friction enhancing engagement structure 15 shown in Figs. 1 a and 1 b.
  • the channel 6 which is shown in Figs. 1 a-1 c has a circular shape.
  • a circular shape of the channel 6 in the connection device 1 may be preferred as it may be fitted to a wide range of prosthetic limbs having rod-shaped cylindrical parts with a standardized diameter. In such instances there is no need for designing the connection device 1 with an inner channel 6 being specifically adapted to the shape of a particular prosthesis.
  • each of the first part 3 of the connection device 1 and the second part 4 of the connection device 1 comprises fastening members 7, 8 for releasably connecting the first part 3 to the second part 4.
  • the fastening members 7, 8 are depicted in Figs. 1 a and 1 b as magnets and are inset in the end surfaces 14, 16 of the respective part 3, 4, such that the fastening members 7, 8 are flush with the end surfaces 14, 16 of the respective parts 3, 4.
  • magnets need not be exposed at the end surfaces 14, 16 of the first and second parts 3, 4 of the connection device 1 but can be concealed beneath the surface of the respective part 3,4.
  • connection devices 1 may be preferred in many applications, as set out herein, embodiments using screw-thread connections, slide-in connections, or snap-in connections as fastening members are also contemplated for the connection devices 1 as disclosed herein.
  • Alternative fastening members will give a different interface appearance between the first and second parts 3, 4 of the connection device 1.
  • the first and/or the second parts 3, 4 of the connection device 1 comprises a portion 9 being adapted for carrying an auxiliary device. This portion 9 is located on the outer peripheral
  • the portion 9 which is adapted for carrying an auxiliary device may extend along the complete outer peripheral circumference or along a major part of the outer peripheral circumference.
  • connection portions 9 shown Fig. 1 a-1 c are surfaces on the parts 3,4 of the connecting device 1 which are provided with particular means for attaching an auxiliary device or which are selected as being suitable for attaching an auxiliary device such as a prosthesis cover, a holder for a tool, or an electronic device, etc., as set out herein.
  • the auxiliary device or a connector part on the auxiliary device may be permanently attached to the connection portion 9 by any suitable means such as by means of adhesive or welding.
  • a connection portion 9 on one or both of the first and second parts 3, 4 of the connection device 1 may be provided with a fastening element 18 as illustrated in Fig. 2.
  • the fastening element 18 may be any type of conventional fastening element of the type which is intended to mate with a corresponding fastening element on the auxiliary device to create a temporary, releasable engagement between the connection device 1 and the auxiliary device.
  • Such mating fastening elements include hook-and-loop fasteners, snap-in fasteners , slide-in fasteners, magnetic fasteners, etc.
  • the fastening element 18 in Fig. 2 is a male fastening element which is intended for engagement with a corresponding female fastening element on the auxiliary device. It is to be understood that the connection device 1 may instead carry the female fastening element while the male fastening element is arranged on the auxiliary device.
  • At least the first part 3 of the connection device 1 is made of a resiliency flexible material. This enables the first part 3 to be attached to the prosthetic limb by pressing the first part 3 onto a part of the prosthetic limb until the portions of the first part 3 on either side of the passage 19 between the ends 20 of the first part 3 of the connection device 1 are flexed slightly apart to let the part of the prosthetic limb pass through the restriction formed between the ends 20 of the first part 3 of the connection device 1.
  • Both the first and the second parts 3, 4 may be made of a resiliency flexible material.
  • the resiliency flexible material may be a polymeric material, such as a thermoplastic material.
  • a particularly preferred material may be polyamide.
  • Other useful materials include polymer composites, as set out herein.
  • the surfaces 14, 16 of the outer ends 20 of the first part 3 may be angled such that the passage into the first part channel 6 narrows in a direction into the first part channel 6.
  • FIGS. 2 and 3 show first parts 3 of a connection device 1 having the same general function as the connection device 1 shown in Figs. 1 a - 1 c.
  • the parts which have already been described with reference to Figs. 1 a - 1 c are hence not further discussed unless there are further issues or facts related to them.
  • Figs. 2 and 3 disclose alternative embodiments of engagement structures 15 which are useful in the connection devices as disclosed herein.
  • the engagement structures 15 in Figs. 2 and 3 are shown arranged on the larger first part 3 of a connection device 1.
  • the second part 4 of the connection devices as disclosed herein may be provided with an engagement structure.
  • An engagement structure 15 on the second part 4 of the connection device may be provided in addition to an engagement structure 15 on the first part 3 of the connection device 1 , or as an alternative thereto. When only one engagement structure 15 is provided, it is generally preferred that it is arranged on the first part 3 of the connection device 1 .
  • the engagement structure 15 of the first part 3 takes the form of a planar surface 17 on the inner peripheral circumference 1 1 of the first part 3 of the connection device 1 . Further depicted is a correspondingly mating surface on a rod- shaped element 2.
  • This arrangement may be particularly useful in embodiments when the connection device 1 is used for attaching to a prosthetic limb, wherein the part of the prosthetic limb to which the connection device is attached may be specifically designed to interact with the connection device for achieving a good provisional fastening of the connection device on the prosthetic limb.
  • the second part 2 is held in place on the prosthetic limb by a combination of the clamping force achieved by the first part 3 being sized and shaped to encircle more than half of the circumference of the prosthetic limb and the mating contours of the engagement structure and the outer surface of the prosthetic limb.
  • circumference 1 1 of the first part 3 may also be advantageous in embodiments when the connection device 1 is used for attaching an auxiliary device to a natural limb, such as the lower portion of the arm, i.e. the wrists.
  • the wrists have more of an oval peripheral circumference comprising close to planar surfaces.
  • a first part 3 in which the engagement structure forms a planar surface 17 on the inner peripheral circumference 1 1 may be useful also in connection devices for attaching to a natural limb.
  • An auxiliary device attached to the connection device 1 may in this arrangement be an orthosis.
  • FIG. 3 a further embodiment of an engagement structure 15 of the first part 3 is shown.
  • the engagement structure 15 in Fig. 3 consists of protruding elements.
  • three protruding elements in the form of ridges extending in the same direction as the channel in the connection device 1 are depicted.
  • Other types of protruding elements include knobs and spikes.
  • the engagement structure 15 may comprise protruding elements such that the engagement structure may be described as forming a corrugated shape.
  • a rod-shaped element 2 is part of a prosthetic limb.
  • connection device is intended for attaching to a prosthetic limb.
  • engagement structure 15 may instead comprise grooves for receiving protruding elements on a correspondingly mating surface of the rod-shaped element 2.
  • connection device 1 is adapted for attaching to a prosthetic limb 2 and for being a connector between the prosthetic limb and an auxiliary device which is permanently attached to the connection device 1 or which may be removably attached to the connection device 1. Accordingly, the connection device 1 is adapted for carrying an auxiliary device.
  • auxiliary devices are protective prosthetic covers, cosmetic/esthetic prosthetic covers, prosthetic covers having an esthetic/cosmetic function and a protective function, personalized and/or functional units such as tools and electronic equipment, e.g. mobile phones.
  • the auxiliary device may be connected to the first and/or second parts 3, 4 of the connection device 1 using fixating means, such as gluing or welding, or using releasable means such as screws, slide-in connections or snap-in connections.
  • connection device 1 is adapted for attachment to a rod-shaped element 2 on a leg prosthesis or an arm prosthesis.
  • an auxiliary device for attachment to the leg or arm prosthesis may be a prosthetic cover, such as a protective cover and/or a cosmetic cover, a personalized and/or functional unit.
  • a functional unit may for example comprise a holder for a mobile phone or a tool.
  • the inner peripheral circumference of the encircling unit 5 may be adapted to a standard circumference of a rod-shaped element on an arm or leg prosthesis.
  • Existing prostheses exhibit varying design solutions but commonly include one or more rod- shaped elements or portions which may have a standard diameter, such as 30 mm or 34 mm.
  • the location of the rod-shaped element or elements on the prosthesis may differ depending on type of prosthesis.
  • auxiliary device such as a prosthetic cover and/or a cosmetic cover, a personalized and/or functional unit
  • connection device 1 attachment of an auxiliary device, such as a prosthetic cover and/or a cosmetic cover, a personalized and/or functional unit, to a connection device 1 may be adapted such that a correct or desired position of the auxiliary device in relation to the prosthesis may be achieved, independent of the location on the prosthesis of the rod-shaped element to which the connection device 1 is attached.
  • a prosthetic cover 30 comprising a first part 31 is shown.
  • the prosthetic cover 30 further comprises a two-part connection device 1 as disclosed herein.
  • the prosthetic cover 30 is shown in Fig. 4 while being attached to a leg prosthesis.
  • the prosthetic cover may be attached to an arm prosthesis. Further, as shown in Fig. 4, the first part 31 of the prosthetic cover 30 is attached to the first part 3 of the connection device 1 . However, the first part 31 of the prosthetic cover 30 may alternatively be attached to the second part 4 of the connection device 1.
  • a prosthetic cover 30 comprising a second part 32, in addition to the first part 31 of the prosthetic cover 30, is shown.
  • the prosthetic cover 30 further comprises a connection device 1 as disclosed herein.
  • the prosthetic cover 30 is shown while being attached to a leg prosthesis 25.
  • the prosthetic cover 30 may be attached to an arm prosthesis.
  • the second part 32 of the prosthetic cover 30 is shown in Fig. 5 to be attached to the second part 4 of the connection device 1 .
  • the second part 32 of the prosthetic cover 30 is attached to the first part 3 of the connection device 1 .
  • a prosthetic cover 30 comprising a connection device 1 to a prosthesis 25 e.g. as shown in Figs. 4 and 5
  • the first part 31 of the prosthetic cover 30 is first attached to the rod-shaped element 2 by snapping the first part 3 of the connection device 1 onto the rod-shaped element 2 as described herein.
  • the second part 32 of the prosthetic cover 30 is connected to the first part 31 of the prosthetic cover 30 by connecting the second part 4 of the connection device 1 to the first part 3 of the connection device 1 by means of the fastening members 7, 8 arranged on the first and the second parts 3, 4 of the connection device 1 respectively.
  • first and second parts 3, 4 of the connection device 1 are formed integral with the first and second parts 31 , 32 of the prosthetic cover 30 respectively. This provides for an easy and low-cost manufacturing process of a connectable prosthetic cover. For example, 3D-printing technique may be used. It may further be preferred that the first and second parts 3, 4 of the connection device 1 are releasably connected by means of magnets.
  • connection device 1 and the prosthetic cover may be provided with 5 fastening elements for permanent or temporary fastening of the prosthetic cover to the connection device e.g. as illustrated in Fig. 2.
  • the prosthetic cover may be attached to the fastening device after application of the fastening device to the target part of the prosthetic limb.
  • a prosthetic cover 30 comprising a connection device 1 as set out herein for attaching to a leg prosthesis is depicted in Figs 6 and 7.
  • the prosthetic cover 30 comprises a first part 31 and a second part 32 which are attached to the first part 3 and second part 4 of the connecting device 1 , respectively.
  • Fig 6 shows the parts 31 , 32 of the prosthetic cover 30 separated, as before attachment
  • Fig 7 shows the parts 31 , 32 of the prosthetic cover
  • the prosthetic cover 30 is depicted in Figs.
  • first part 31 of the prosthetic cover 30 mimics the shape of a calf.
  • the first and/or second parts 31 , 32 of the prosthetic cover 30 may comprise connecting elements 33 positioned on opposing longitudinal side edges 34, 35 of each part 31 , 32 of the prosthetic cover, which opposing
  • connecting elements 33 contribute to fixation of the parts 31 , 32 of the prosthetic cover 30.
  • the connecting elements 33 are optional features of the prosthetic cover 30 as disclosed herein. And further, the connecting elements 33 may be provided in different shapes and numbers along the longitudinal

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne un dispositif de connexion (1) conçu pour être fixé à une prothèse de jambe ou à une prothèse de bras ou à une orthèse comprenant une première partie (3) et une seconde partie (4), la première partie (3) et la seconde partie (4) pouvant être reliées l'une à l'autre de manière amovible. Les première et seconde parties forment ensemble une unité d'encerclement (5), qui comprend un canal (6) pour encercler une partie du membre ou de l'orthèse prothétique. Une circonférence du canal (6) est constituée par une circonférence périphérique intérieure (11) de la première partie (3) et une circonférence périphérique intérieure (12) de la seconde partie (4). La première partie (3) et la seconde partie (4) comprennent des éléments de fixation (7, 8) pour relier de manière amovible la première partie (3) à la seconde partie (4). Au moins l'une des première et seconde parties (3, 4) comprend une partie (9) pour transporter un dispositif auxiliaire (10). Au moins la première partie (3) est constituée d'un matériau élastiquement souple. La circonférence périphérique intérieure (11) de la première partie (3) est supérieure à la circonférence périphérique intérieure (12) de la seconde partie (4). L'invention concerne également un couvercle (30) pour une prothèse ou une orthèse comprenant le dispositif de connexion (1).
PCT/EP2017/059148 2016-04-18 2017-04-18 Dispositif de connexion destiné à être fixé à un membre ou une orthèse prothétique WO2017182451A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1650517 2016-04-18
SE1650517-4 2016-04-18

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WO2017182451A1 true WO2017182451A1 (fr) 2017-10-26

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018064725A1 (fr) * 2016-10-05 2018-04-12 Ajkp Pty Ltd Améliorations apportées ou liées à des prothèses
WO2021003537A1 (fr) 2019-07-10 2021-01-14 Arthesis Ltd. Couvercle de prothèse
FR3102669A1 (fr) * 2019-11-05 2021-05-07 Med In 3D Coque d’habillage de prothèse de membre inférieur
WO2021207373A1 (fr) * 2020-04-08 2021-10-14 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Prothèse de membre supérieur
ES2931989A1 (es) * 2021-06-24 2023-01-05 Fiixit Orthotic Lab S L Dispositivo alineador de cubiertas protesicas a protesis

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602960A (en) * 1970-05-12 1971-09-07 Kabel Metallwerke Ghh Clamp for mounting elliptical waveguides
US20070150069A1 (en) * 2005-09-08 2007-06-28 Japan Labour Health And Welfare Organization Modularized prosthesis leg cover and method for manufacturing the same
DE102010049894A1 (de) * 2010-10-29 2012-05-03 Otto Bock Healthcare Gmbh Protheseneinrichtung und Verkleidung für eine Protheseneinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602960A (en) * 1970-05-12 1971-09-07 Kabel Metallwerke Ghh Clamp for mounting elliptical waveguides
US20070150069A1 (en) * 2005-09-08 2007-06-28 Japan Labour Health And Welfare Organization Modularized prosthesis leg cover and method for manufacturing the same
DE102010049894A1 (de) * 2010-10-29 2012-05-03 Otto Bock Healthcare Gmbh Protheseneinrichtung und Verkleidung für eine Protheseneinrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018064725A1 (fr) * 2016-10-05 2018-04-12 Ajkp Pty Ltd Améliorations apportées ou liées à des prothèses
WO2021003537A1 (fr) 2019-07-10 2021-01-14 Arthesis Ltd. Couvercle de prothèse
FR3102669A1 (fr) * 2019-11-05 2021-05-07 Med In 3D Coque d’habillage de prothèse de membre inférieur
WO2021089932A1 (fr) * 2019-11-05 2021-05-14 Med In 3D Coque d'habillage de prothèse de membre inférieur
WO2021207373A1 (fr) * 2020-04-08 2021-10-14 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Prothèse de membre supérieur
ES2931989A1 (es) * 2021-06-24 2023-01-05 Fiixit Orthotic Lab S L Dispositivo alineador de cubiertas protesicas a protesis

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