Bioceramic compositions
US6972130B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/64
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a synthetic, poorly crystalline apatite (PCA) calcium phosphate containing a biologically active agent and/or cells (preferably tissue-forming or tissue-degrading cells). The compositions provided by the present invention are useful for a variety of in vivo and in vitro applications, including drug delivery (for example, to bony sites, the central nervous system, intramuscular sites, subcutaneous sites, interperitoneal sites, and occular sites) tissue growth (preferably bone or cartilage) osseous augmentation, and methods of diagnosing disease states by assaying tissue forming potential of cells isolated from a host. The invention also provides methods of preparing delivery vehicles, of altering delivery vehicle characteristics, and of delivering biologically active agents to a site. The invention further provides in vitro cell culture systems and cell encapsulation materials. The invention is useful for both medical and veterinary applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.