Injectable liquid copolymers for soft tissue repair and augmentation
US5824333A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Nov 6, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/0059
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides injectable, bioabsorbable liquid copolymers suitable for use as a soft tissue repair or augmentation material in animals comprising a liquid polymer selected from the group consisting of liquid polymers of a plurality of at least two different first lactone repeating units and liquid polymers of a plurality of first lactone and second lactone repeating units; wherein the first lactone repeating units are selected from the group consisting of .epsilon.-caprolactone repeating units, trimethylene carbonate repeating units, ether lactone repeating units (which for the purpose of this invention shall mean 1,4-dioxepan-2-one and 1,5-dioxepan-2-one) and combinations thereof and the second lactone repeating units are selected from the group consisting of glycolide repeating units, lactide repeating units (which for the purpose of this invention are defined to be L-lactide, D-lactide, or D,L-lactide repeating units), p-dioxanone repeating units and combinations thereof. Additionally, the present invention also discloses methods of using these liquid copolymers for tissue augmentation and repair as well as kits which include prefilled containers to facilitate t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.