CA2616967A1 - A method of making porous self-cohered web materials - Google Patents

A method of making porous self-cohered web materials Download PDF

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Publication number
CA2616967A1
CA2616967A1 CA002616967A CA2616967A CA2616967A1 CA 2616967 A1 CA2616967 A1 CA 2616967A1 CA 002616967 A CA002616967 A CA 002616967A CA 2616967 A CA2616967 A CA 2616967A CA 2616967 A1 CA2616967 A1 CA 2616967A1
Authority
CA
Canada
Prior art keywords
stretched
cohered
self
web material
porous web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002616967A
Other languages
French (fr)
Other versions
CA2616967C (en
Inventor
Ted R. Farnsworth
Charles Flynn
Charles F. White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gore Enterprise Holdings Inc
Original Assignee
Gore Enterprise Holdings, Inc.
Ted R. Farnsworth
Charles Flynn
Charles F. White
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gore Enterprise Holdings, Inc., Ted R. Farnsworth, Charles Flynn, Charles F. White filed Critical Gore Enterprise Holdings, Inc.
Publication of CA2616967A1 publication Critical patent/CA2616967A1/en
Application granted granted Critical
Publication of CA2616967C publication Critical patent/CA2616967C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/52—Hydrogels or hydrocolloids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges

Abstract

The present invention is directed to a method of making implantable bioabsorbable non-woven self-cohered web materials having a high degree of porosity. The web materials are very supple and soft, while exhibiting proportionally increased mechanical strength in one or more directions. The web materials often possess a high degree of loft. The web materials can be formed into a variety of shapes and forms suitable for use as implantable medical devices or components thereof.

Claims (14)

1. A method of making a highly porous bioabsorbable self-cohered web material comprising:
providing a bioabsorbable polymeric material capable of forming self-cohering spun-bonded filaments;
extruding said bioabsorbable polymeric material through at least one heated spinneret forming at least one continuous filament thereby;
allowing said collected continuous filament to self-cohere to different portions of the continuous filament to form a porous web material;
stretching said self-cohered porous web material in at least one direction at a ratio of at least one to one (1:1); and heating said stretched self-cohered porous web material to anneal said bioabsorbable polymeric material.
2. The method of claim 1 further comprising collecting said continuous filament on a moving collector.
3. The method of claim 1 wherein said stretched self-cohered porous web material is heated and annealed under restraint.
4. The method of claim 1 wherein said stretched self-cohered porous web material is heated and annealed without restraint.
5. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of four to one (4:1).
6. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of five to one (5:1).
7. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of six to one (6:1).
8. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of seven to one (7:1).
9. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of eight to one (8:1).
10. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of nine to one (9:1).
11. The method of claim 1 wherein said stretched self-cohered porous web material is stretched at a ratio of ten to one (10:1).
12. The method of claim 1 further comprising forming said stretched self-cohered porous web material into a tubular construction.
13. The method of claim 1 further comprising placing a hydrogel material on at least one surface of at least one of said filaments.
14. The method of claim 13 further comprising releasably placing a bioactive species within said hydrogel material.
CA2616967A 2005-07-29 2006-07-21 A method of making porous self-cohered web materials Active CA2616967C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/192,744 US7850810B2 (en) 2005-07-29 2005-07-29 Method of making porous self-cohered web materials
US11/192,744 2005-07-29
PCT/US2006/028503 WO2007015986A2 (en) 2005-07-29 2006-07-21 A method of making porous self-cohered web materials

Publications (2)

Publication Number Publication Date
CA2616967A1 true CA2616967A1 (en) 2007-02-08
CA2616967C CA2616967C (en) 2010-11-30

Family

ID=37693008

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2616967A Active CA2616967C (en) 2005-07-29 2006-07-21 A method of making porous self-cohered web materials

Country Status (8)

Country Link
US (2) US7850810B2 (en)
EP (2) EP2489769B1 (en)
JP (1) JP5015925B2 (en)
AT (1) ATE541075T1 (en)
AU (1) AU2006276059B2 (en)
CA (1) CA2616967C (en)
ES (2) ES2528025T3 (en)
WO (1) WO2007015986A2 (en)

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Also Published As

Publication number Publication date
ATE541075T1 (en) 2012-01-15
WO2007015986A2 (en) 2007-02-08
EP1910599A2 (en) 2008-04-16
ES2379980T3 (en) 2012-05-07
US20110089592A1 (en) 2011-04-21
EP1910599A4 (en) 2010-04-07
EP2489769B1 (en) 2014-11-26
US7850810B2 (en) 2010-12-14
US8377241B2 (en) 2013-02-19
WO2007015986A3 (en) 2007-04-19
JP2009502334A (en) 2009-01-29
EP2489769A1 (en) 2012-08-22
JP5015925B2 (en) 2012-09-05
EP1910599B1 (en) 2012-01-11
CA2616967C (en) 2010-11-30
ES2528025T3 (en) 2015-02-03
AU2006276059B2 (en) 2009-10-29
AU2006276059A1 (en) 2007-02-08
US20070023131A1 (en) 2007-02-01

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