Implants for bones, joints and tooth roots
US4146936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1976 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Dec 29, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved implant for a bone, a joint and tooth root comprising a metallic base material and a coating layer of hydroxyapatite which is formed by thermally sprayed hydroxyapatite powder or a mixture of hydroxyapatite powder and ceramic powder around the outer surface of the metallic base material, optionally a layer of a bonding agent and further a layer of ceramics are formed between the metallic base material and the layer of hydroxyapatite. The implant has a sufficient mechanical strength (e.g. impact strength) and further a good affinity to tissues of living bodies and is useful for implantation in various bones including tooth roots in living bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.