Controlled release of medicaments using polymers from glycolic acid
US3991766A · kind A · utility
151Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Apr 3, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/602
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Polyhydroxyacetic ester, also called polyglycolic acid (PGA), has surgically useful mechanical properties. On implantation, in living mammalian tissue, the polyglycolic acid is absorbed, and replaced by living tissue. Sutures, clips and storage pellets having medicaments incorporated therein can be used for both their own mechanical properties and as a delayed release system for medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.