Composite femoral implant having increased neck strength
US5163962A · kind A · utility
13Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Aug 30, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0028
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is an improvement in a femoral implant for a hip prosthesis involving a longitudinal shaft having a neck extending therefrom at an acute angle .theta. to the longitudinal direction made of layers of carbon fiber in a polymeric matrix, each layer containing unidirectional fibers and the layers arranged such that carbon fibers are oriented in the longitudinal direction and the .+-..theta. direction. The improvement involves balancing at least 50% of the layers in the .+-..theta. direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.