Prosthetic tubular article made with four chemically distinct fibers

• US 4,923,470 A
• Filed: 03/22/1988
• Issued: 05/08/1990
• Est. Priority Date: 04/25/1985
• Status: Expired due to Term

• Current Assignee: Sherwood Services AG
• Original Assignee: American Colloid Company (Minerals Technologies Incorporated)
• Inventors: Dumican, Barry L.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): Prebilic, Paul
• Application Number:
  US07/171,606
• Time in Patent Office: 777 Days
• Field of Search: 128/334 R, 128/335.5, 623/1, 623/2, 623/11, 623/13, 623/66, 606/230
• US Class Current: 623/23.71
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2002/30032 differing in absorbability or resorbability, i.e. in absorption or resorption time
• CPC Class Codes: A61F 2002/30235 tubular, e.g. sleeves
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2250/0031 made from both resorbable and non-resorbable prosthetic parts, e.g. adjacent parts
• CPC Class Codes: A61L 27/18 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 27/26 Mixtures of macromolecular compounds
• CPC Class Codes: A61L 27/44 having a macromolecular matrix
• CPC Class Codes: A61L 27/507 for artificial blood vessels apparatus for applying cells on a blood vessel prosthesis A61F2/062
• CPC Class Codes: A61L 27/58 Materials at least partially resorbable by the body
• CPC Class Codes: C08G 63/64 Polyesters containing both carboxylic ester groups and carbonate groups
• CPC Class Codes: C08L 67/04 Polyesters derived from hydroxycarboxylic acids, e.g. lactones C08L67/06 takes precedence
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates

Abstract

A tubular prosthetic article having at least four chemically distinct fibers is disclosed. A first and second fiber are made of absorbable polymers and a third and fourth fiber are made from nonabsorbable polymers. The absorbable polymers are made from the monomeric units of esters such as glycolic acid, lactic acid, polydioxanone and blends of the same. The nonabsorbable polymers may be made from esters such as polyethylene terephthalate, polybutylene terephthalate, polybutester, or blends of the same. These four chemically distinct fibers may be woven or knitted into a tubular form.

Claims

1. A tubular article useful in prosthetic surgery having a plurality of at least three different fibers, a first and a second fiber manufactured from two chemically distinct absorbable polymers, and a third fiber manufactured from a nonabsorbable polymer, the improvement comprising at least one of the first or second absorbable polymers being selected from the group consisting of a copolymer of glycolic acid, poly(lactic acid), polydioxanone, and blends of the same, and a fourth fiber, the third and fourth fibers being chemically distinct and manufactured from two different nonabsorbable polymers.

3. The tubular article of claim 1 or 2 wherein one of the absorbable polymers comprises up to about fifty percent by weight of trimethylene carbonate linkages.

4. The tubular article of claim 1 or 2 wherein the fibers are knitted or woven together in a concentric relationship.

2. A tubular article useful in prosthetic surgery having a plurality of at least three different fibers, a first and a second fiber manufactured from two different absorbable polymers, and a third fiber manufactured from a nonabsorbable polymer, the improvement comprising the first fiber manufactured from a copolymer of glycolic acid and trimethylene carbonate;

the second fiber manufactured from a homopolymer of glycolic acid;

the third fiber manufactured from a polymer selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, a polybutester, and blends of the same; and

a fourth fiber manufactured from a spandex polymer.

5. The tubular article of claim 2 wherein the first fiber comprises about 35 to 55%;

the second fiber comprises about 15 to 35%;

the third fiber comprises about 10 to 20% of polyethylene terephthalate; and

the fourth fiber comprises about 5 to 15%, all percentages based on the total weight of the article.

6. The tubular article of claim 2 wherein the first, second and third fibers are each texturized by either a false twist or a knit/deknit process.