Implantable biodegradable material and process for its production
US5709875A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1994 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Sep 30, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/604
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a material which can be implanted in living tissue, in particular bony tissue, and having a rate of biodegradation adapted to the rate at which the tissue is regenerated; this material may comprise an active substance in order to achieve a therapeutic effect of prolonged duration. This material comprises (a) a calcium phosphate with apatitic or triclinic structure comprising HPO.sub.4 and PO.sub.4 groups, (b) a biodegradable oside or polyoside, in particular dextran, (c) if required, an active substance comprising amine groups such as netilmicin and/or gentamicin in sulphate form. The implantable material according to the invention may be produced without heat by compacting its various constituents in the powdery state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.