EP0199531A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Wound dressing
Assignee: Unitika Ltd
•
Filing: 1986-04-16
•
Granted: —
•
Expires: 2006-04-16
Abstract
Abstract Disclosed is a wound dressing comprising a nonwoven fabric composed of(A) a chitin fiber having a thickness of less than one denier and a strength of not less than 2 g/d, and(b) a fibrous binder,which is suitable for dressings of skin defect wounds, which has compatibility to a living body and good fitness property to the surface of wounds and which is insoluble with exudates.
Inventors
- 👤 Koji Kifune
- 👤 Yasuhiko Yamaguchi
- 👤 Hiroyuki Tanae
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:10
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/225; A61L15/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
35 words
A wound dressing comprising a nonwoven fabric composed of (A) a chitin fiber having a thickness of less than one denier and a strength of not less than 2 g/d, and (b) a fibrous binder.
Claim 2
Dependent Claim
35 words
A wound dressing comprising a nonwoven fabric composed of (A) a chitin fiber having a thickness of less than one denier and a strength of not less than 2 g/d, and (b) a fibrous binder.
Claim 3
Dependent Claim
23 words
The dressing of claim 1 in which the chitin fiber has a thickness of more than 0.2 denier and less than 1 denier.
Claim 4
Dependent Claim
35 words
The dressing of claim 1 in which the fibrous binder is formed from polyvinyl alcohol, carboxymethyl cellulose, gelatin, starch, acrylic acid ester, vinyl acetate, ethylepe, vinyl acetate copolymer, vinyl chloride, natural rubber or synthetic rubber
Claim 5
Dependent Claim
31 words
The dressing of claim 1 in which the weight ratio of the chitin fiber to the fibrous binder is within the range of from 80 : 20 to 95 : 5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.