CogniFlex MPK

The CogniFlex MPK gives K3 transfemoral users the safety margin that defines modern microprocessor knees: sensors sample knee angle and moment at 100 Hz, and the hydraulic resistance answers within the same step. Stumble recovery raises flexion resistance the instant an unexpected load arrives mid-swing, while dedicated modes cover stairs, ramps, standing, and two clinician-programmable activities.

A microvalve-controlled hydraulic cylinder provides both swing and stance damping, monitored by an IMU and axial load cell in the carbon-shelled chassis. The battery runs about three days per charge with inductive charging; mass is 1,310 g, build height 162 mm, weatherproofing IP54, weight rating 136 kg.