Patent ID: 7981164

Claim:
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.