This unique prosthetic system was designed taking into account that the amputee is able to bear weight on the end of their residual limb, making it ideal for Knee Disarticulate and some Symes amputations.
Developed by POA founder Stan Patterson, CP, the PPS is an innovative, flexible two-piece socket system featuring an attached carbon fiber strut. It allows patients to engage their own muscles in ways impossible with traditional sockets, enabling a natural stride, easier propulsion, and better sensory awareness.
How it Works:
Instead of restricting the residual limb, the PPS flexes and moves with the patient’s natural muscle contractions. By actively firing their muscles, patients control the attached carbon fiber strut—which bends and propels the prosthesis forward with every step.
Fitting and Suspension Process:
The patient measured for and fit with a prosthetic liner made of medical grade silicone. These liners are fabricated on-site in our liner manufacturing lab.
The second component of the system is the prosthetic sock. These socks are layered on top of the liner and act as a wick between the liner and the socket and to accommodate for volume changes within the residual limb.
The residual limb is then placed in the socket and air is evacuated through a one-way expulsion valve. Lastly, a sealing sleeve is rolled up to seal against the liner above the socket trim lines.
