Transfemoral prosthetic systems and methods for operating the same

US8057550B2 · kind B2 · utility

Assignee

• Össur hf · IS

Inventors

• Arinbjörn Viggo Clausen · Reykjavík, IS
• Magnús Oddsson · Hafnarfjordur, IS

Key dates

• Filing date: Mar 23, 2009
• Grant date: Nov 15, 2011
• Expiry date: Jun 23, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/769
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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 ankle adjusts for the incline or decline. In certain embodiments, adjustments, such as a toe lift function, are automatically performed after about three strides of the transfemoral prosthetic device user and/or when each of the strides has a stride speed of at least about 0.55 meters/second.