Porous metal overlay for an implant surface
US4976738A · kind A · utility
108Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1985 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Dec 2, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00544
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The porous metal overlay for an implant surface is comprised of a plurality of layers of stacked metal grids. Each layer is provided with pores which are of a size which decrease in the direction of the implant surface steadily, that is, without enlargement in an intermediate layer. The progressively decreasing porous sizes provide for a steady ingrowth and nourishment of the ingrowing tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.