Prosthetic foot with tunable performance

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/66 (2006.01) A61F 2/00 (2006.01) A61F 2/50 (2006.01) A61F 2/76 (2006.01)

Patent

CA 2442104

A prosthetic foot (70) incorporates a foot keel (71) and a calf shank (72) connected to the foot keel to form an ankle joint area of the prosthetic foot. The foot keel has forefoot and hindfoot portions and an upwardly arched midfoot portion extending between the forefoot and midfoot portions. The calf shank includes a downward convexly curved lower end which is adjustably attached at a portion thereof to the foot keel by way of a releasable fastener arrangement which includes a coupling element (73) intermediate the calf shank and foot keel. The coupling element includes a resilient material forming a joint permitting subtalar joint-like motion of the prosthetic foot in gait.

L'invention porte sur une prothèse de pied (70) comportant une semelle (71) et une tige (72) reliée à la tige par une zone articulée. La semelle présente une partie avant, une partie arrière et une partie médiane cambrée les séparant. La tige comporte une extrémité inférieure convexe dirigée vers le bas, reliée par l'une de ses parties à la semelle au moyen d'une fixation amovible comportant un élément de liaison (73) intermédiaire entre la tige et la semelle. L'élément de liaison consiste en un matériau élastique formant un joint conférant à la prothèse pendant la marche des mouvements analogues à ceux de l'articulation sous-astragalienne.

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