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US 7,981,164 B1Granted
Knee prosthesis
OwnerMichael W. Schultzinventor
Life of this patent
Estimating the term…
Abstract
A knee prosthesis for providing a user with a natural walking gait and flexion resistance. The knee prosthesis includes a support assembly; a flexion resistance member being supported upon the support assembly; a pivot assembly being pivotally connected to the support assembly and being fastened to a user's leg socket; and a flexion resistance drive assembly interconnecting said pivot assembly and said flexion resistance member.
Claims13
A knee prosthesis comprising:
- a support assembly including a pair of plate members being spacedly arranged and disposed generally parallel to one another, each of said plate members including an elongate roller guide slot, each said elongate roller guide slot being disposed through a respective said plate member, each said elongate roller guide slot having an upper portion which is angled relative to a longitudinal axis of a respective said plate member and also having a lower portion which is angled relative to the longitudinal axis of a respective said plate member, said upper portion of each said elongate roller guide slot being disposed at a greater angle than that of said lower portion relative to the longitudinal axis of a respective said plate member to reduce flexion resistance during a user's normal gait and at a beginning of any degree of flexion;
- a flexion resistance member being supported upon said support assembly;
- a pivot assembly being pivotally connected to said support assembly and being fastened to a user's leg socket;
- and
- a flexion resistance drive assembly interconnecting said pivot assembly and said flexion resistance member.
2 more elements
A knee prosthesis comprising:
- a support assembly including a pair of plate members being spacedly arranged, each of said plate members including an elongate roller guide slot, each said plate member having an opening being disposed therethrough, said support assembly having interchangeable plate inserts being removably and individually fastened in each said opening of a respective said plate member;
- a flexion resistance member being supported upon said support assembly;
- a pivot assembly being pivotally connected to said support assembly and being fastened to a user's leg socket;
- and
- a flexion resistance drive assembly interconnecting said pivot assembly and said flexion resistance member.
2 more elements
A knee prosthesis comprising:
- a support assembly including a pair of plate members being spacedly arranged;
- a flexion resistance member being supported upon said support assembly;
- a pivot assembly being pivotally connected to said support assembly and being fastened to a user's leg socket, said pivot assembly including a pivot member having a main portion;
- and
- a flexion resistance drive assembly interconnecting said pivot assembly and said flexion resistance member, said flexion resistance drive assembly including a first linkage member being pivotally connected to said flexion resistance member, and also including a second linkage member being engageable and movable relative to said first linkage member and being pivotally connected to said pivot member to activate said flexion resistance member at desired degrees of flexion.
2 more elements
Dependencies are inferred from the claim text.