Polycentric knees allow users to walk with outstanding safety: during the INITIAL CONTACT phase, the knee is locked in a completely extended position. In order to support patients at best, suggesting the best knee for them, we had to know the behavior of each knee considering the trajectory of his CIR (Istantaneus Rotation Center). As follow You can see the shadow of the CIR during a complete flexion of each knee compared to the load line.

Polycentric Pneumatic Knee Joint: specific for people approaching to walk with variable CIR (Center Instantaneous Rotation) but need pneumatic flexion and swing softness. Studied geometry allows “prosthetic shortening” during the PUSH OFF phase avoid to stumble. Extension and flexion completely assisted and customizable on each patient due to the 2 pneumatic valves. This knee is tested according to ISO 10328.

Warranty 36 months.

Very high CIR and close to the hip, low fatigue to start flexion.

Posterior CIR to the load line.

Very closed CIR to the load line, good for voluntary control.


Thanks to the pyramidal adapter suitable for each knee, it’s possible to change the CIR position compared to the LOAD LINE in order to offer users more safety or more voluntary control.

Community ambulation.
Variable cadence gait (or potential).
Most environmental barriers.

Code 6.002.02.PN


Flexion angle 150°

Component Weight 750 g
Material Aluminum alloy 7075
Maximum User Weight 130 Kg