Coated biomaterials and methods for making same
US4976736A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/414
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Biomaterials useful for onthopedicanel dental applications is disclosed. These materials have a base portion of calcium carbonate and a surface layer of a synthetic phosphate such as hydroxyapatite. The base portion may be a calcium carbonate structure having three-dimensional interconnected porosity such as may be found in porous skeletal carbonate of marine life, e.g. coral porites skeletal aragonite, or it may be porous or non-porous granules of calcium carbonate. A method for making the biomaterials is also disclosed. The synthetic phosphate surface is made using a hydroconversion reaction with a soluble or solubilized phosphate such as ammonium dibasic phosphate ((NH4).sub.2 HPO4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.