Tissue bulking and coating compositions
US6652883B2 · kind B2 · utility
106Cited by
25References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Mar 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/36
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Compositions comprising macromers having a backbone comprising units having a 1,2-diol and/or 1,3-diol structure for tissue bulking and coating. Such polymers include poly(vinyl alcohol) (PVA) and hydrolyzed copolymers of vinyl acetate, for example, copolymers with vinyl chloride, N-vinylpyrrolidone, etc. The backbone polymer contains pendant chains bearing crosslinkable groups and, optionally, other modifiers. When crosslinked, the macromers form hydrogels having many properties advantageous for use as agents to bulk and coat tissues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.