EP0213563B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and material for prevention of surgical adhesions
Assignee: Ethicon Inc
•
Filing: 1986-08-21
•
Granted: 1991-05-29
•
Expires: 2006-08-21
Abstract
Abstract An absorbable fabric which effectively reduces the incidence of postoperative adhesions when used as a physical barrier at the operative site is a warp knit fabric of oxidized regenerated cellulose or other bioresorbable material. The barrier fabric is particularly characterized by having a density of 8 to 15 mg/cm<sup>2</sup> and an open area porosity of 12 to 20 percent.
Inventors
- 👤 Cary Bruce Linsky
- 👤 Timothy Joseph Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 18:44
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/16; A; A61; A61B; A61B90/00; A61L; A61L31/00; A61L31/04; A61L31/042; A61L31/043; A61L31/044; A61L31/14; A61L31/148; A61B90/08; A61B2090/0815; A61B2090/0816; D10; D10B; D10B2509/00; D10B2509/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
A postoperative adhesion barrier comprising a conformable fabric constructed of a bioresorbable material consisting of oxidized regenerated cellulose or proteinaceous fibers derived from algin or collagen, said fabric being characterized by having a density of 8.0 to 15 mg/cm² and a porosity of 12 to 20 percent open area.
Claim 2
Dependent Claim
20 words
The adhesion barrier of claim 1 wherein the numerical ratio of said porosity to said density is 1.0 or greater.
Claim 3
Dependent Claim
17 words
The adhesion barrier of claim 1 or 2 wherein said fabric has a knit or nonwoven construction.
Claim 4
Dependent Claim
14 words
The adhesion barrier of claim 3 wherein said fabric has a warp knit construction.
Claim 5
Dependent Claim
43 words
An absorbable, postoperative adhesion barrier according to claim 1 or 2 comprising a warp knit fabric of oxidized regenerated cellulose, said fabric being characterized by having a density of 8.0 to 15 mg/cm² and a porosity of 12 to 20 percent open area.
Claim 6
Dependent Claim
34 words
The adhesion barrier of claim 5 wherein said fabric is derived from continuous filament bright rayon yarn having a total denier of from 40 to 80 and containing from 10 to 25 individual filaments.
Claim 7
Dependent Claim
20 words
The adhesion barrier of claim 5, wherein said fabric is derived from a 60 denier, 18 filament bright rayon yarn.
Claim 8
Dependent Claim
14 words
The adhesion barrier of claim 5 wherein said fabric is a tricot knit fabric.
Claim 9
Dependent Claim
46 words
An absorbable, postoperative adhesion barrier according to any of the claims 5 to 8, comprising a warp knit tricot fabric of oxidized regenerated cellulose, said fabric being characterized by a density of 9 to 13 mg/cm² and a porosity of 15 to 19 percent open area.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.