MAGNETORHEOLOGICALLY ACTUATED PROSTHETIC KNEE

摘要

The invention in some embodiments relates to a magnetorheologically actuated prosthetic knee. The knee in one embodiment comprises an extension assist to facilitate knee extension. The knee in another embodiment comprises a flexible diaphragm that substantially prevents or mitigates undesirable pressure build-up the chamber. The knee in yet another embodiment comprises a specially configured dynamic seal that is utilized to seal a magnetorheological fluid comprising a liquid and solid particles within the chamber of the knee. Advantageously, the knee allows an amputee to move comfortably, safely and in a substantially natural and life-like manner in various dynamic and static states, terrains and topography.