IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0341038
(2008-12-22)
|
| 등록번호 |
US-8523951
(2013-09-03)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
- The Ohio Willow Wood Company
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
21 인용 특허 :
97 |
초록
▼
A tube-sock shaped polymeric covering for wearing over an amputation stump. The covering has an open end for receiving the amputation stump and a closed end opposite the open end. The covering includes a docking means for attachment of an external device to the covering. The covering may also includ
A tube-sock shaped polymeric covering for wearing over an amputation stump. The covering has an open end for receiving the amputation stump and a closed end opposite the open end. The covering includes a docking means for attachment of an external device to the covering. The covering may also include one or more areas of reinforcing material that can be present in the form of a strip or rod, for example. The reinforcing material is comprised of a material that is less stretchable than the polymeric material forming the covering, and acts to reduce stretching and/or movement of the covering.
대표청구항
▼
1. A prosthetic component comprising: a layer of durable fabric of a shape having a proximal open end for introduction of a residual leg and a closed distal end for covering a distal end of said residual leg, said fabric of sufficient length to rise from said distal end of a residual leg over an ent
1. A prosthetic component comprising: a layer of durable fabric of a shape having a proximal open end for introduction of a residual leg and a closed distal end for covering a distal end of said residual leg, said fabric of sufficient length to rise from said distal end of a residual leg over an entire portion of said residual leg to be covered by a prosthetic socket; anda block copolymer and plasticizing oil cushioning gel layer secured to only an inside surface of said fabric such that said gel layer is in direct contact with a residual leg and cushions said residual leg inside a prosthetic socket when said prosthetic component is worn by an amputee, said gel absent from an outer surface of said fabric such that said prosthetic component may readily slide into and out of a prosthetic socket without said gel sticking thereto and such that said prosthetic component may be rolled during donning or doffing thereof without said gel causing said prosthetic component to stick to itself;wherein said fabric and gel are of sufficient thickness to stand alone as a sole interface between a residual leg and a prosthetic socket; andwherein said prosthetic component has sufficient flexibility and elasticity to substantially conform to the shape of a residual leg to which it is donned while being sufficiently tight to substantially eliminate air pockets between said residual leg and said gel layer. 2. A prosthetic component according to claim 1, further comprising a docking element secured to said fabric layer at said distal end thereof, said docking element for coupling said prosthetic component to a prosthetic socket of a prosthesis. 3. A prosthetic component according to claim 2, wherein said docking element is molded directly to said fabric. 4. A prosthetic component according to claim 1, wherein said gel layer is seamless. 5. A prosthetic component according to claim 1, wherein said gel layer is thicker at a closed end thereof than at an open end. 6. A prosthetic component according to claim 1, wherein said gel layer is unevenly distributed and results in said prosthetic component having a thinner posterior middle and upper portion, and a thicker distal anterior medial and anterior lateral portion. 7. A prosthetic component according to claim 1, wherein said gel layer is arranged in a recessed Achilles configuration. 8. A prosthetic component according to claim 1, wherein said plasticizing oil is mineral oil. 9. A prosthetic component according to claim 1, having a length from closed end to open end of from 10-25 inches. 10. A prosthetic component according to claim 1, wherein the overall thickness thereof varies from 0.150-0.500 inches. 11. A prosthetic component according to claim 1, wherein said gel further includes a biocide. 12. A prosthetic component according to claim 1, wherein said gel further includes a vitamin. 13. A prosthetic component according to claim 1, wherein said gel has a Shore A hardness of between about 1-20. 14. A prosthetic component according to claim 1, wherein said gel has a Shore 00 hardness of between about 1-100. 15. A prosthetic component according to claim 1, wherein said fabric is a fiber-on-end fabric. 16. A prosthetic component according to claim 1, wherein said fabric is a stretchable nonwoven. 17. A prosthetic cushion liner for enclosing and cushioning a residual leg of an amputee while said residual leg is located within a prosthetic socket, said cushion liner comprising: a durable fabric covering having an open proximal end for introduction of a residual leg and a closed distal end opposite said open end for covering a distal end of said residual leg, said fabric seamlessly coated on only an inside surface thereof with a block copolymer and mineral oil gel composition having a hardness that approximates human skin such that said gel composition will be in direct contact with a residual leg and cushion said residual leg inside a prosthetic socket when said cushion liner is worn by an amputee in conjunction with a prosthesis, said gel absent from an outer surface of said fabric such that a portion of a residual leg covered by said cushion liner may be readily slid into and out of a prosthetic socket without said gel sticking thereto and such that said cushion liner may be rolled during donning or doffing thereof without said gel causing said cushion liner to stick to itself;wherein said fabric and said gel composition are of sufficient length to rise from said distal end of a residual leg over an entire portion of said residual leg to be covered by a prosthetic socket and are of sufficient thickness to allow said cushion liner to function as a sole interface between a residual leg and a prosthetic socket; andwherein said cushion liner has sufficient flexibility and elasticity to substantially conform to the shape of a residual limb to which it is donned. 18. A cushion liner according to claim 17, further comprising a docking element secured to said fabric covering at said distal end thereof, said docking element for coupling said cushion liner to a prosthetic socket of a prosthesis. 19. A cushion liner according to claim 18, wherein said docking element is molded directly to said fabric covering. 20. A cushion liner according to claim 17, wherein said gel composition is thicker at a closed end thereof than at an open end. 21. A cushion liner according to claim 17, wherein said gel composition is unevenly distributed and results in said cushion liner having a thinner posterior middle and upper portion, and a thicker distal anterior medial and anterior lateral portion. 22. A cushion liner according to claim 17, wherein said gel composition is arranged in a recessed Achilles configuration. 23. A cushion liner according to claim 17, wherein said gel composition further includes at least one material selected from the group consisting of a biocide, and a vitamin. 24. A cushion liner according to claim 17, wherein said block copolymer composition has a Shore A hardness of between about 1-20. 25. A cushion liner according to claim 17, wherein said block copolymer composition has a Shore 00 hardness of between about 1-100. 26. A standalone residual leg-prosthetic socket interface in the form of a substantially tube-shaped cushion liner, said cushion liner for enclosing at least a portion of a residual leg without any trapped air pockets when donned and comprising: a durable fabric covering having an open proximal end for introduction of a residual leg and a closed distal end opposite said open end for covering a distal end of said residual leg, said fabric covering being between about 0.025 and 0.200 inches in thickness; anda continuous and seamless layer of a cushioning and shape-conforming block copolymer and mineral oil gel composition residing on only an interior surface of said fabric covering such that said gel composition will be in direct contact with a residual leg and cushion said residual leg inside a prosthetic socket when said cushion liner is worn by an amputee in conjunction with a prosthesis, said gel absent from an outer surface of said fabric such that a portion of a residual leg covered by said cushion liner may be readily slid into and out of a prosthetic socket without said gel sticking thereto and such that said cushion liner may be rolled during donning or doffing thereof without said gel causing said cushion liner to stick to itself, said gel composition being between about 0.150 and 0.500 inches in thickness and extending from said closed end of said fabric covering a sufficient length to cover an entire portion of said residual leg to be inserted into a prosthetic socket. 27. A residual leg-prosthetic socket interface according to claim 26, wherein the thickness of said gel composition is substantially uniform throughout. 28. A residual leg-prosthetic socket interface according to claim 26, wherein said gel composition tapers uniformly from a greater thickness near said closed end to a lesser thickness near said open end. 29. A residual leg-prosthetic socket interface according to claim 26, further comprising a docking element secured to said fabric covering at said distal end thereof, said docking element for coupling said residual leg-prosthetic socket interface to a prosthetic socket of a prosthesis. 30. A residual leg-prosthetic socket interface according to claim 29, wherein said docking element is molded directly to said fabric covering. 31. A prosthetic assembly comprising: a prosthetic leg including a hard prosthetic socket for receiving a portion of an amputee's residual leg;a standalone residual leg-prosthetic socket interface in the form of a substantially tube-shaped cushion liner, said cushion liner further comprising: a durable fabric covering having an open proximal end for introduction of a residual leg and a closed distal end opposite said open end for covering a distal end of said residual leg, said fabric covering being between about 0.025 and 0.200 inches in thickness, anda continuous and seamless cushioning and shape-conforming block copolymer and mineral oil gel composition layer of between about 0.150 and 0.500 inches in thickness residing on only an interior surface of said fabric covering such that said gel composition will be in direct contact with a residual leg and cushion said residual leg inside said prosthetic socket when said cushion liner is worn by an amputee in conjunction with a prosthesis, said gel absent from an outer surface of said fabric covering such that a portion of a residual leg covered by said cushion liner may be readily slid into and out of said prosthetic socket without said gel sticking thereto and such that said cushion liner may be rolled during donning or doffing thereof without said gel causing said cushion liner to stick to itself;wherein said gel composition extends from said closed end of said fabric covering by a length that is at least equivalent to a depth of said prosthetic socket; andwherein said cushion liner has sufficient flexibility and elasticity to substantially conform to the shape of a residual leg to which it is donned while being sufficiently tight to substantially prevent the formation of air pockets between said residual leg and said gel composition layer. 32. A prosthetic assembly according to claim 31, wherein the thickness of said gel composition of said cushion liner is substantially uniform throughout. 33. A prosthetic assembly according to claim 31, wherein said gel composition of said cushion liner tapers uniformly from a greater thickness near said closed end to a lesser thickness near said open end. 34. A prosthetic assembly according to claim 31, further comprising a docking element secured to said fabric covering of said cushion liner at said distal end thereof, said docking element coupling said cushion liner to said prosthetic socket when a liner-covered residual leg is inserted into said socket. 35. A prosthetic assembly according to claim 34, wherein said docking element is molded directly to said fabric covering of said cushion liner.
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