Shock absorbing element for a load bearing prosthesis
US5735905A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00592
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a method and structure for absorbing shock in a load bearing prosthesis, particularly in a load-bearing skeletal prosthesis. Where the prosthesis is a hip-joint replacement, the invention provides a method and structure for absorbing shock (1) at the interface between the femoral head and cup, and (2) at the interface between the femur and the stem of the prosthesis. Where the prosthesis is a femoral head prosthesis, the prosthesis is formed using two separate components which are mechanically connected using an elastomeric component. The connection permits relative motion between the structural components of the prosthesis, with the elastomeric component acting as a passive shock absorbing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.