Chemically and enzymatically modified collagen hemostatic agent
US4215200A · kind A · utility
46Cited by
13References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 2, 1978 |
| Grant date | Jul 29, 1980 |
| Priority date | — |
| Expiry date | Oct 2, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Polymers of quaternary-structured collagen of minimum length, diameter and periodicity, and containing a relatively high positive electrostatic charge are claimed as hemostatic agents. Specific examples are guanidnated polymers of the type described, esterified polymers, and esterified-guanidinated polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.