Multiaxis controlled motion knee orthosis
US4723539A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1985 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Oct 30, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2005/0165
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to an appliance for controlling an unstable knee joint in the sagittal, coronal and transverse planes, comprising femoral and tibial cuffs joined by links which are interconnected to provide a novel mechanical joint wherein camming slots are formed in one of the links with cams disposed on the other link, the slots comprising straight segments and arcuate segments so as to provide approximately 8 millimeters of sliding movement between the femur and tibia, followed by relative rotation about the center of radius of the femoral condyle as the leg is flexed. The tibial cuff is conformed about the boney prominence or shin of the tibia to inhibit rotation of the leg beneath the knee within the brace itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.