Plastic bone implant having a reinforced contact surface
US4978355A · kind A · utility
81Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1986 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Jan 6, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00544
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A metal grid is embedded in the contact surface of a plastic implant in order to increase the wear resistance of the plastic implant. The ridge dimensions of the metal grid are chosen so that the elasticity of the plastic implant is not unduly reduced. An additional anchoring surface formed of layers of porous metal may be secured to the embedded grid to provide a surface into which bone tissue may grow in a cementless anchorage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.