Two-phase compositions for absorbable surgical devices
US4744365A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Sep 22, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L31/129
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbable, annealed surgical device made from a multi-phase, polymeric composition derived from lactide and glycolide is disclosed. Preferably, the composition has two phases, both phases are continuous, the first phase has about 0-about 25% m glycolide moieties, the overall composition has up to 45% m glycolide moieties, and the first phase constitute at least 50% (and preferably not more than about 95%) by weight of the composition. The device has a high distortion temperature, good resistance to hot-wet creep, but yet loses tensile strength in vivo quickly. The composition per se is injection-moldable, can be annealed, and is not brittle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.