improved kniegelenksmechanismus a prosthesis for kniegelenksbehinderungen

摘要

An improved four bar knee joint mechanism (40) for use in knee disarticulation prosthesis is shown, including a coupler link (45) forming a negative angle with the horizontal when said knee joint mechanism is in a stance position, an anterior link (46), a fixed link (43) in a horizontal position when said knee joint is in the extended or stance position, and a posterior link (47), the dimensions of the links and the angle the coupler link makes with the horizontal being chosen to optimize the instant center of the mechanism.