hybrid knee joint

Hybrid knee joint has rotary Hydraulic Dampener that during the stance phase, allows the knee to flex/yield at a controlled rate. During the swing phase, the microprocessor-controlled pneumatic cylinder  functions to provide cadence responsive swing control. At heel strike the MRS system detects the ground reaction force which initiates the rotary hydraulic Dampener and produces resistance to flexion. This allows the knee to yield at a controlled rate. As the stance phase progresses and the weight passes through the toes, the MRS turns off the hydraulic resistance to allow the transition into the swing phase. A proximity sensor within the microprocessor detects the time taken for each walking cycle, using knee joint flexion data. The microprocessor  activates the needle valve of the pneumatic cylinder causing it to adjust to the patients walking speed.