Certain embodiments of the invention relate to increasing the functionality of a transfemoral prosthetic device. In one embodiment, the transfemoral prosthetic device is configured such that the prosthetic knee maintains a load consistent with a healthy knee walking on level ground, while the prosthetic...http://www.google.sh/patents/US8057550?utm_source=gb-gplus-sharePatent US8057550 - Transfemoral prosthetic systems and methods for operating the same
