Surgical sealant
US10668181B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2017 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Jan 11, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J189/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical sealant consisting of (1) a first agent comprising a gelatin derivative, wherein the gelatin derivative (a) has a weight average molecular weight of from 10,000 to 50,000; (b) has a hydrophobic group bonded thereto, the hydrophobic group being an alkyl group having 6 to 18 carbon atoms; (c) has a molar ratio of imino group/amino group of the gelatin derivative ranging from 1/99 to 30/70; and (d) comprises a structure represented by the following formula: GltnNH—CHR1R2, wherein “Gltn” represents a gelatin residue, R1 is the hydrophobic group, and R2 is a hydrogen atom or the hydrophobic group; and (2) a second agent comprising a crosslinking agent for the gelatin derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.