[미국특허]
Suspension liner having external surface peripheral profiles
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-002/78
A61F-002/50
A61F-005/01
A61F-002/80
출원번호
US-0135330
(2005-05-24)
발명자
/ 주소
Bjarnason,Asmundur Bergmann
출원인 / 주소
Ossur hf
대리인 / 주소
Bacon &
인용정보
피인용 횟수 :
85인용 특허 :
21
초록▼
A close-ended residual limb suspension liner includes a distal portion, a proximal portion, and a center portion extending between the distal and proximal portions. An outer surface of the liner includes at least one peripheral profile portion having an undulating wall thickness comprising a plurali
A close-ended residual limb suspension liner includes a distal portion, a proximal portion, and a center portion extending between the distal and proximal portions. An outer surface of the liner includes at least one peripheral profile portion having an undulating wall thickness comprising a plurality of projections arranged in a pattern.
대표청구항▼
I claim: 1. A residual limb suspension liner for a prosthesis, comprising: a closed-ended, tubular sleeve having an axis, and defining along the axis a distal portion, a proximal portion, and a center portion extending between the distal and proximal portions; wherein an internal surface of the sle
I claim: 1. A residual limb suspension liner for a prosthesis, comprising: a closed-ended, tubular sleeve having an axis, and defining along the axis a distal portion, a proximal portion, and a center portion extending between the distal and proximal portions; wherein an internal surface of the sleeve is defined by a continuously cured elastomeric material layer; wherein an external surface of the sleeve forms a non-peripheral profile portion having a uniform wall thickness and the external surface further forms at least one peripheral profile portion integrally formed from the elastomeric layer and having an undulating wall thickness extending into the proximal and center portions of the sleeve; wherein the maximum thickness of the undulating wall thickness is substantially the same as the non-peripheral profile portion uniform wall thickness. 2. The suspension liner according to claim 1, wherein the at least one peripheral profile portion defines a plurality of annular projections extending radially outwardly from and about the sleeve axis. 3. The suspension liner according to claim 2, wherein the plurality of projections are generally uniformly spaced from one another. 4. The suspension liner according to claim 1, wherein the at least one peripheral profile portion defines a plurality of longitudinal projections extending longitudinally along the sleeve about the circumference thereof. 5. The suspension liner according to claim 4, wherein the plurality of projections are generally uniformly spaced from one another. 6. The suspension liner according to claim 1, wherein the at least one peripheral profile portion defines a plurality of annular projections extending obliquely relative to the sleeve axis. 7. The suspension liner according to claim 1, wherein the external surface of the sleeve is arranged for direct contact against a hardened prosthetic socket. 8. The suspension liner according to claim 1, wherein the peripheral profile portion only extends in the proximal and center portions of the sleeve. 9. A residual limb suspension liner for a prosthesis, comprising: a closed-ended, tubular sleeve having an axis, and defining along the axis a distal portion, a proximal portion, and a center portion extending between the distal and proximal portions; wherein the tubular sleeve comprises a tubular shaped elastomeric layer defining an internal surface of the liner, and an elasticized fabric secured to the elastomeric layer, the elasticized fabric defining an external surface of the liner; wherein the external surface of the liner forms a non-peritheral profile portion having a uniform wall thickness and the external surface further forms at least one peripheral profile portion formed from the elastomeric layer and having an undulating wall thickness extending into the proximal and center portions of the sleeve; wherein the maximum thickness of the undulating wall thickness is substantially the same as the non-peripheral profile portion uniform wall thickness. 10. The suspension liner according to claim 9, wherein the at least one peripheral profile portion defines a plurality of annular projections extending radially outwardly from and about the sleeve axis. 11. The suspension liner according to claim 10, wherein the plurality of projections are generally uniformly spaced from one another. 12. The suspension liner according to claim 9, wherein the at least one peripheral profile portion comprises a plurality of longitudinal projections extending longitudinally along the sleeve about the circumference thereof. 13. The suspension liner according to claim 9, wherein the plurality of projections are generally uniformly spaced from one another. 14. The suspension liner according to claim 9, wherein the at least one peripheral profile portion comprises a plurality of annular projections extending obliquely relative to the sleeve axis. 15. The suspension liner according to claim 9, wherein the elasticized fabric has a higher stiffness along a first direction than along a second direction that is orthogonal to the first direction. 16. The suspension liner according to claim 9, wherein the external surface of the sleeve is arranged for direct contact against a hardened prosthetic socket. 17. The suspension liner according to claim 9, wherein the peripheral profile portion only extends in the proximal and center portions of the sleeve. 18. A residual limb suspension liner for a prosthesis, comprising: a closed-ended, tubular sleeve having an axis, and defining along the axis a distal portion, a proximal portion, and a center portion extending between the distal and proximal end portions; wherein the external surface of the liner defines a non-peripheral profile portion having a uniform wall thickness and the external surface further defines at least one peripheral profile portion having an undulating wall thickness; wherein the maximum thickness of the undulating wall thickness is substantially the same as the non-peripheral profile portion uniform wall thickness; wherein the at least one peripheral profile portion includes a plurality of annular projections extending radially outwardly from and about the sleeve axis generally along the center portion of the sleeve; wherein the at least one peripheral profile portion further comprises a plurality of longitudinal projections extending longitudinally along the sleeve about the circumference thereof and generally along the proximal portion of the sleeve. 19. The suspension liner according to claim 18, wherein the external surface of the sleeve is arranged for direct contact against a hardened prosthetic socket. 20. The suspension liner according to claim 18, wherein the peripheral profile portion only extends in the proximal and center portions of the sleeve.
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