Microprocessor Control System
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Suction Suspension System
Above the knee amputees require a knee joint and lower leg to ambulate. The knee joint and lower leg components attach to a socket. Custom sockets are created for each individual amputee and fit onto their residual limb using a number of systems and methods to stay in place.
The socket is created with a lock body at the bottom of the socket which attaches to a knee and or pylon (a metal tube) then down to the prosthetic foot. A below the knee amputee would have a pylon coming directly out of their socket which would then attach to their prosthetic foot. The completed device is known as a prosthetic or prosthesis. Every amputee is unique and they’re prosthetic should compliment their needs based on their activity level and ADL’s.
Generally there are two types of prosthetic knees: Mechanical and microprocessor. The difference between a mechanical knee and a microprocessor knee is in its functionality. They both have a hinge that replace the knee joint. Mechanical knees operate using a hydraulic system or a locking system. The responsiveness of your knee is often controlled by friction and the body powered movements of the amputee themselves. Microprocessor knees are controlled by a computer system that actually learns an amputees gait and walking patterns and can be programmed for specific types of use. This system offers a more stable and efficient gait and natural walking pattern.