Hip joint prosthesis
US3938198A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1973 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Sep 27, 1993 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthesis for replacement of a damaged joint or load-bearing structure in an animal or human body comprises a shaped structural member, a relatively thick or cushioning coating of a physiologically inert elastomer over the surfaces of the structural member in load-bearing relationship with the skeletal structure of the body, and an open-pore, tissue-ingrowth-receptive fabric coating the elastomer, all elements being firmly bonded to each other. In many embodiments, a stem of the prosthesis comprising the above elements is adapted to be inserted into a bone cavity, and is eventually affixed firmly thereto by fibrous tissue and bony ingrowth. Stability of the stem portion is enhanced by buttresses integral with the base of the stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.