Lower leg prosthesis with improved rollover

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/76 (2006.01) A61B 5/103 (2006.01) A61F 2/66 (2006.01)

Patent

CA 2580108

A foot prosthesis (100) having improved rollover and stability. The prosthesis (100) includes a first plate (130) and a mounting block (140) having a mounting portion configured to be coupled to a user of the prosthesis (100), an attachment portion and a gap portion (147), with the mounting block (140) attached to the first plate (130) at the attachment portion with a gap (147) between the mounting block gap portion (147) and the first plate (130). Also included is a resilient element (150) positioned at least partially within the gap (147), the resilient element (150) configured generally to dissipate stress in the first plate (130) and control deflection between the first plate (130) and the mounting block (140). The mounting block (140) may be substantially rigid with the area of the first plate (130) attached to the mounting block (140) becoming substantially rigid while the remainder of the first plate (130) is at least partially flexible. The resilient element (150) may be interchangeable to adjust performance of the prosthesis (100).

L'invention concerne une prothèse du pied possédant des caractéristiques de rotation et de stabilité améliorées. Cette prothèse se compose d'une première plaque et d'un bloc de montage comportant une partie de montage conçue pour être couplée à un utilisateur de la prothèse, une partie de fixation et une partie comprenant un espace, le bloc de montage étant fixé à la première plaque au niveau de la partie de fixation, avec un espace entre la partie du bloc de montage comprenant un espace et la première plaque. La prothèse comprend également un élément souple disposé au moins en partie dans l'espace. Cet élément souple est conçu globalement pour dissiper la contrainte au niveau de la première plaque et pour contrôler la flexion entre la première plaque et le bloc de montage. Le bloc de montage peut être sensiblement rigide, la zone de la première plaque fixée au bloc de montage devenant sensiblement rigide alors que le reste de la première plaque est au moins partiellement flexible. L'élément souple est interchangeable et peut être remplacé pour ajuster les performances de la prothèse.

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