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US 7,618,463 B2Granted
Energy returning prosthetic joint
AssigneeOssur Hf
InventorsMagnus Oddsson, Vilhjalmur Freyr Jonsson, Christophe Guy Lecomte
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Abstract
An energy returning prosthetic joint arranged for use as a knee joint in prosthetic limbs includes a biasing or spring member connected to upper and lower attachment members. The spring member includes a composite material having an energy returning property. A cushion may be provided within the range of curvature of the spring member, or be connected to frame members in order to limit motion of the spring member.
Claims16
An energy returning prosthetic joint, comprising:
- a lower frame member having a lower portion and an upper portion;
- an upper mount member pivotally connected to the upper portion of the lower frame member;
- a biasing member having an upper end and a lower end, the lower end of the biasing member connected to the lower portion of the lower frame member and the upper end of the biasing member connected to the upper mount member;
- and
- a damper disposed between the biasing member and the lower frame member;
- wherein during a stance phase, the damper and the biasing member are arranged to provide stance flexion and, during a swing phase, the biasing member is arranged to provide energy return.
3 more elements
Dependencies are inferred from the claim text.