Coatings for the manufacture and application of polyhydroxyalkanoate medical devices
US9326841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Oct 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Biocompatible coatings and spin finishes that can be applied to polyhydroxyalkanoate (PHA) polymers, and medical devices made from PHA polymers, have been developed. The coatings impart good lubricity to PHA polymers, particularly to fibers and braids made from these materials, making the coatings ideal for use on medical devices such as PHA braided sutures. The spin finishes can be applied to PHA fibers to facilitate their manufacture, and also for their conversion to other products, including medical textiles. The spin finishes serve to protect multifilament fiber bundles, and keep them intact following extrusion, and also to impart lubricity to the fiber bundles and monofilament fibers so that they are not damaged in subsequent processing steps particularly in textile processing. The coating reduces tissue drag of, for example, braided sutures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.