Prosthetic devices having a region of controlled porosity
US4038703A · kind A · utility
94Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1975 |
| Grant date | Aug 2, 1977 |
| Priority date | — |
| Expiry date | Nov 14, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00574
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved prosthetic device having its exterior surface formed to provide a region of controlled porosity to promote the ingrowth of bone and/or tissue. A metal coil spring is secured to a metal substrate at a plurality of points, as by being disposed in a groove having a depth about equal to the loop diameter of the spring. Adjacent loops of the spring are preferably spaced apart from one another, and adjacent side-by-side spring sections may be interleaved with one another, with the interleaved loops being affixed to each other by common bonds at their points of junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.