Method for preparing a biomaterial based on hydroxyapatite, resulting biomaterial and surgical or dental use
US6521264B1 · kind B1 · utility
31Cited by
5References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 11, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Jan 11, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00836
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A solid powder product with a Ca/P ratio of between 1.40 and 1.90 is prepared from tricalcium phosphate and tetracalcium phosphate. An aqueous solution containing calcium ions and phosphate ions with a Ca/P ratio higher than 0.20 and lower than 0.50 is prepared. The aqueous solution and the solid powder product and optionally water are mixed to obtain a mixture with a liquid/solid weight ratio of between 0.30 and 0.65 and a resulting paste with a Ca/P ratio of between 1.50 and 1.67.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.