Ft. Wayne, IN –Trelleborg Sealing Solutions worked with Freedom Innovations to supply five components for a computer-controlled damper inside Freedom’s Pliรฉโข MPC knee. Components included a Zurconยฎ AS Wiper, Zurconยฎ L-Cup, bushing, Turconยฎ Slydringยฎ and custom FKM (fluoroelastomer) bladder, ensuring leak-free performance.
The damper is a monotube, with air on one side and oil on the other. Inside, the Zurconยฎ AS Wiper keeps contamination out. The Zurconยฎ L-Cup is the main rod seal, and the Turconยฎ Slydringยฎ is the main piston seal. Absorbing side load, the bushing keeps the rod from hitting the sides of the damper, while the custom FKM bladder forms a barrier between the oil and the air. The end result is low friction, no stick-slip and no leakage.
An industry-leading Actuator Response Time (A.R.T.) supported by advanced microprocessor programming, allows the knee to make nearly instantaneous adjustments to knee position and velocity. With a reaction time ten times faster than the blink of an eye, the device provides a precise response to actual gait dynamics as they occur, rather than a step behind. The result is a prosthetic knee that requires less cognitive effort, freeing the user to look beyond the next step and enjoy what lies ahead, even including water sports, since the Pliรฉโข is completely water-resistant.
::Design World::
