Artificial knee joint
US7195647B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 29, 2003 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/6818
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An artificial knee joint includes an upper seat, a lower seat adapted to be connected fixedly to a prosthetic lower leg, and a driving device. The upper seat includes a seat body connected to the lower seat by the driving device, and a movable member connected pivotally to the seat body and adapted to be connected fixedly to a residual thigh. The driving device includes a rotating shaft journalled within the seat body. When a downward force and an upward force are applied respectively to the movable member and the seat body, a gripping member presses against the rotating shaft so as to prevent rotation of the rotating shaft and thus relative movement of the lower seat and the seat body of the upper seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.