High strength, fast absorbing, melt processable, gycolide-rich, poly(glycolide-co-p-dioxanone) copolymers
US5633343A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/664
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Absorbable, segmented copolymers of aliphatic polyesters based on lactone monomers glycolide, and p-dioxanone are described. The segmented copolymers exhibit a broad range of properties, especially high strength and stiffness, and fast absorption rates and breaking strength retention (BSR) profiles, useful in a variety of medical devices. Most importantly, for suture applications where Vicryl.RTM.-like polyglcolide-polylactide sutures with excellent tensile properties, but shorter BSR profiles than Vicryl.RTM. are needed. The copolymers of the present invention have such properties, making them useful in plastic surgery where faster absorption times would lead to less tissue scarring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.