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 Title: |
US5135472:
Non-linting composite gauze material
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Hermann, Paul F.; Boothbay Harbor, ME
Wildstein, Joel S.; Ledyard, CT
Sprague, Henry B.; Stonington, CT
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| Assignee: |
United Foam Plastics Corporation, Georgetown, MA
other patents from UNITED FOAM PLASTICS CORP. (596600) (approx. 5)
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| Published / Filed: |
1992-08-04
/ 1991-09-11
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| Application Number: |
US1991000758168
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| IPC Code: |
Advanced:
A61F 13/00;
A61L 15/26;
A61F 13/15;
IPC-7:
A61F 13/00;
A61L 15/00;
B32B 27/00;
B32B 27/40;
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| ECLA Code: |
A61F13/00A6D; A61F13/00A2; A61L15/26; K61F13/00J12A; K61F13/00J25B; K61F13/00J25L; K61F13/00J27; K61F13/00L5A5;
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| U.S. Class: |
Current:
602/041;
424/446;
428/425.1;
428/507;
Original:
602/041;
424/446;
428/425.1;
428/507;
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| Field of Search: |
604/304,307
424/443,446
428/425.1,507
602/041,42
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| Priority Number: |
| 1987-02-09 |
US1987000013255 |
| 1990-03-06 |
US1990000489379 |
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| Abstract: |
A durable hydrophilic substantially non-linting water absorbent drapable composite material useful as wound dressing comprises cellulose fibers coated with hydrophilic polymer. The cellulose fibers may be open weave cotton gauze. The hydrophilic polymer may comprise a polyurethane foam prepolymer, such as a toluene diisocyanate terminated polyethylene glycol, optimally containing a surfactant. Alternatively, the polymer may comprise a polyethylene oxide, a carboxymethyl cellulose, or a polyvinylpyrrolidone. The water to prepolymer weight ratio of the polyurethane embodiment preferably is within the range of from about 6:1 to about 400:1. The hydrophilic polymer may be a polyethylene oxide carboxymethyl cellulose mixture.
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| Attorney, Agent or Firm: |
Testa, Hurwitz & Thibeault ;
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| Primary / Asst. Examiners: |
Green, Randall L.; Prebilic, Paul
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Related Applications: |
| Application Number |
Filed |
Patent |
Pub. Date |
Title |
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| US1990000489379 | 1990-03-06 |
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| US1987000013255 | 1987-02-09 |
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| Foreign References: |
Buy
PDF |
Publication |
Date |
IPC Code |
Assignee |
Title |
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GB1092902
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1967-11 |
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GB2069327
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1981-08 |
A47L 13/16
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FREUDENBERG CARL KG
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CLEANING CLOTHS |
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| Other Abstract Info: |
DERABS C91-295358
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| Other References: |
"American Cotton Handbook", Merrill et al., (1949), pp. 88-89.
"Surgical Sponges: A Cause of Granuloma and Adhesion Formation", Sturdy et al., Ann. of Surg. 165(1), (1967), pp. 128-134.
"Granulomatous Peritonitis Due to Cellulose Fibers . . . ", Tinker et al., Presented at New York Surgical Society, (Jan. 9, 1974).
"Cellulose Granulomas . . .", Tinker et al., Presented at the 7th Annual Meeting of the Alimentary Track, (May 25-26, 1978).
"Internal Overhealing: The Problem of Intraperitoneal Adhesion", Ellis, World J. of Surg. 4, (1980), pp. 303-306.
"Postoperative Adhesions: Etiology, Prevention, and Therapy", Levinson et al., Clin. Obst. and Gyn. 23(4), (1980), pp. 1213-1220.
"Foam Systems", Saunders et al., Polyurethanes Chemistry and Technology, vol. XVI Part 2, pp. 7-26.
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