FR2442713A1 - Structure poreuse de polytetrafluorethylene et procede pour sa preparation - Google Patents
Structure poreuse de polytetrafluorethylene et procede pour sa preparationInfo
- Publication number
- FR2442713A1 FR2442713A1 FR7929579A FR7929579A FR2442713A1 FR 2442713 A1 FR2442713 A1 FR 2442713A1 FR 7929579 A FR7929579 A FR 7929579A FR 7929579 A FR7929579 A FR 7929579A FR 2442713 A1 FR2442713 A1 FR 2442713A1
- Authority
- FR
- France
- Prior art keywords
- face
- preparation
- stretching
- porous
- fibers
- 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
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- 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
- A61L27/14—Macromolecular materials
- A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
- A61L29/041—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
- A61L29/146—Porous materials, e.g. foams or sponges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Transplantation (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biomedical Technology (AREA)
- Medicinal Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Gastroenterology & Hepatology (AREA)
- Manufacturing & Machinery (AREA)
- Cardiology (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Dermatology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
Structure poreuse de polytétrafluoréthylène à structure microfibreuse constituée de fibres et de noeuds reliés entre eux par ces fibres, et sa préparation. Une face de la structure microfibreuse est fortement orientée dans une direction et l'autre face est fortement orientée dans une direction perpendiculaire, avec variation progressive de l'orientation d'une face à l'autre. On prépare cette structure qui peut consister en un tube par étirage de l'article de polytétrafluoréthylène dans une direction, chauffage de l'article à une température supérieure à 327 degrés C environ en empêchant la rétraction, et frittage qui conduit à une orientation plus forte dans une direction perpendiculaire à la direction d'étirage que dans la direction d'étirage. Un tube poreux selon l'invention peut être utilisé avantageusement comme prothèse vasculaire.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53148928A JPS581656B2 (ja) | 1978-11-30 | 1978-11-30 | ポリテトラフルオロエチレン多孔質体及びその製造方法 |
JP53148929A JPS6037736B2 (ja) | 1978-11-30 | 1978-11-30 | 管状臓器補綴材 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2442713A1 true FR2442713A1 (fr) | 1980-06-27 |
FR2442713B1 FR2442713B1 (fr) | 1982-11-19 |
Family
ID=26478971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7929579A Granted FR2442713A1 (fr) | 1978-11-30 | 1979-11-30 | Structure poreuse de polytetrafluorethylene et procede pour sa preparation |
Country Status (9)
Country | Link |
---|---|
US (1) | US4332035A (fr) |
AU (1) | AU521190B2 (fr) |
CA (1) | CA1147109A (fr) |
DE (1) | DE2947743C2 (fr) |
FR (1) | FR2442713A1 (fr) |
GB (1) | GB2037294B (fr) |
IT (1) | IT1120048B (fr) |
NL (1) | NL179352C (fr) |
SE (1) | SE435151B (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990005490A1 (fr) * | 1988-11-17 | 1990-05-31 | Brown University Research Foundation | Canaux de guidage a charge electrique pour nerfs |
US5030225A (en) * | 1987-03-13 | 1991-07-09 | Brown University Research Foundation | Electrically-charged nerve guidance channels |
WO1995010247A1 (fr) * | 1993-10-08 | 1995-04-20 | Impra, Inc. | Greffon vasculaire renforce et son procede de fabrication |
Families Citing this family (79)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4713070A (en) * | 1978-11-30 | 1987-12-15 | Sumitom Electric Industries, Ltd. | Porous structure of polytetrafluoroethylene and process for production thereof |
FI78393C (fi) * | 1982-09-10 | 1989-08-10 | Gore & Ass | Syntetiskt protes foer ersaettning eller reparation av ligament eller senor. |
US5049155A (en) * | 1982-09-10 | 1991-09-17 | W. L. Gore & Associates, Inc. | Prosthesis for tensile-load-carrying tissue and method of manufacture |
US5258040A (en) * | 1982-09-10 | 1993-11-02 | W. L. Gore & Associates | Prosthesis for tensile load-carrying tissue and method of manufacture |
DE3425027A1 (de) * | 1983-07-08 | 1985-01-17 | Sumitomo Electric Industries, Ltd., Osaka | Fluorharz-filter |
US4550447A (en) * | 1983-08-03 | 1985-11-05 | Shiley Incorporated | Vascular graft prosthesis |
US4647416A (en) * | 1983-08-03 | 1987-03-03 | Shiley Incorporated | Method of preparing a vascular graft prosthesis |
JPS61293450A (ja) * | 1985-05-27 | 1986-12-24 | 城 靖 | 人工血管 |
CA1292597C (fr) * | 1985-12-24 | 1991-12-03 | Koichi Okita | Prothese tubulaire a structure composite |
JPS62152470A (ja) * | 1985-12-24 | 1987-07-07 | 住友電気工業株式会社 | 管状臓器補綴材 |
US4767418A (en) * | 1986-02-13 | 1988-08-30 | California Institute Of Technology | Luminal surface fabrication for cardiovascular prostheses |
JPS62279920A (ja) * | 1986-05-28 | 1987-12-04 | Daikin Ind Ltd | 多孔質熱収縮性テトラフルオロエチレン重合体管及びその製造方法 |
US4743480A (en) * | 1986-11-13 | 1988-05-10 | W. L. Gore & Associates, Inc. | Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby |
GB8700249D0 (en) * | 1987-01-07 | 1987-02-11 | Ici Plc | Vascular prosthesis |
US4877029A (en) * | 1987-03-30 | 1989-10-31 | Brown University Research Foundation | Semipermeable nerve guidance channels |
US5026513A (en) * | 1987-10-19 | 1991-06-25 | W. L. Gore & Associates, Inc. | Process for making rapidly recoverable PTFE |
US4877661A (en) * | 1987-10-19 | 1989-10-31 | W. L. Gore & Associates, Inc. | Rapidly recoverable PTFE and process therefore |
DE3879613T2 (de) * | 1987-10-19 | 1993-10-07 | Gore & Ass | Schnellrückstellbares PTFE und Verfahren zu dessen Herstellung. |
US4973609A (en) * | 1988-11-17 | 1990-11-27 | Memron, Inc. | Porous fluoropolymer alloy and process of manufacture |
US5141522A (en) * | 1990-02-06 | 1992-08-25 | American Cyanamid Company | Composite material having absorbable and non-absorbable components for use with mammalian tissue |
DE4036551C2 (de) * | 1990-08-14 | 1997-04-24 | Reinhard Weber | Filterpatrone sowie deren Herstellung |
FR2675038B3 (fr) * | 1991-04-10 | 1993-07-16 | France Chirurgie Instrumentation | Support de mesoprothese. |
CA2108278A1 (fr) * | 1991-06-04 | 1992-12-05 | Hoo Y. Chung | Produits poreux fabriques a partir de polytetrafluoroethylene traite par un perfluoroether liquide et methodes de fabrication de ces produits |
CA2110499C (fr) * | 1991-06-14 | 1998-06-23 | Stanislaw L. Zukowski | Polytetrafluoroethylene poreux expanse, modifie en surface; methode de preparation |
US5366631A (en) * | 1992-02-10 | 1994-11-22 | Pall Corporation | Composite, supported fluorocarbon media |
AU676831B2 (en) * | 1992-03-13 | 1997-03-27 | Atrium Medical Corporation | Controlled porosity expanded polytetrafluoroethylene products and fabrication |
JPH0767895A (ja) * | 1993-06-25 | 1995-03-14 | Sumitomo Electric Ind Ltd | 抗菌性人工血管及び抗菌性手術用縫合糸 |
EP0758953B1 (fr) | 1994-05-06 | 2004-03-03 | IMPRA, INC., a subsidiary of C.R. BARD, INC. | Ensemble pour le traitement d'un conduit du corps |
DK63894A (da) * | 1994-06-06 | 1996-01-08 | Meadox Medicals Inc | Kateter med stent samt fremgangsmåde til fremstilling af et sådant kateter med stent |
EP0767684B1 (fr) * | 1994-06-27 | 2005-05-25 | Bard Peripheral Vascular, Inc. | Polytetrafluoroethylene expanse radialement, et extenseurs endovasculaires expansibles formes avec cette matiere |
DE69524501T2 (de) * | 1994-08-12 | 2002-05-29 | Meadox Medicals, Inc. | Mit einen Heparin enhaltendes Kollagendichtmittel imprägniertes Gefässtransplantat |
US5665114A (en) * | 1994-08-12 | 1997-09-09 | Meadox Medicals, Inc. | Tubular expanded polytetrafluoroethylene implantable prostheses |
GB9419859D0 (en) * | 1994-10-03 | 1994-11-16 | Westone Prod Ltd | Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss |
GB2308827B (en) * | 1994-10-03 | 1998-12-23 | Westone Prod Ltd | Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss |
US5782789A (en) * | 1994-10-19 | 1998-07-21 | Atrium Medical Corporation | Macrochannel phosthetic/delivery patch |
US5552100A (en) * | 1995-05-02 | 1996-09-03 | Baxter International Inc. | Method for manufacturing porous fluoropolymer films |
US5800512A (en) * | 1996-01-22 | 1998-09-01 | Meadox Medicals, Inc. | PTFE vascular graft |
US6428571B1 (en) * | 1996-01-22 | 2002-08-06 | Scimed Life Systems, Inc. | Self-sealing PTFE vascular graft and manufacturing methods |
US5747128A (en) * | 1996-01-29 | 1998-05-05 | W. L. Gore & Associates, Inc. | Radially supported polytetrafluoroethylene vascular graft |
US6099791A (en) * | 1996-03-08 | 2000-08-08 | Baxter International Inc. | Methods of manufacture of multiaxially oriented fluoropolymer films |
US5607478A (en) * | 1996-03-14 | 1997-03-04 | Meadox Medicals Inc. | Yarn wrapped PTFE tubular prosthesis |
US5928279A (en) | 1996-07-03 | 1999-07-27 | Baxter International Inc. | Stented, radially expandable, tubular PTFE grafts |
US6517571B1 (en) | 1999-01-22 | 2003-02-11 | Gore Enterprise Holdings, Inc. | Vascular graft with improved flow surfaces |
US6221097B1 (en) * | 1999-03-22 | 2001-04-24 | Scimed Life System, Inc. | Lubricated sleeve material for stent delivery |
US6780497B1 (en) * | 1999-08-05 | 2004-08-24 | Gore Enterprise Holdings, Inc. | Surface modified expanded polytetrafluoroethylene devices and methods of producing the same |
US6342294B1 (en) * | 1999-08-12 | 2002-01-29 | Bruce G. Ruefer | Composite PTFE article and method of manufacture |
US6756094B1 (en) * | 2000-02-28 | 2004-06-29 | Scimed Life Systems, Inc. | Balloon structure with PTFE component |
US6716239B2 (en) | 2001-07-03 | 2004-04-06 | Scimed Life Systems, Inc. | ePTFE graft with axial elongation properties |
US7029495B2 (en) * | 2002-08-28 | 2006-04-18 | Scimed Life Systems, Inc. | Medical devices and methods of making the same |
US7320948B2 (en) * | 2002-12-20 | 2008-01-22 | Kimberly-Clark Worldwide, Inc. | Extensible laminate having improved stretch properties and method for making same |
JP4101100B2 (ja) | 2003-04-02 | 2008-06-11 | 宇明泰化工股▲ふん▼有限公司 | 衣料用非対称性多孔質ポリテトラフルオロエチレン膜 |
JP3795027B2 (ja) * | 2003-04-02 | 2006-07-12 | 宇明泰化工股▲ふん▼有限公司 | フィルター用非対称性多孔質ポリテトラフルオロエチレン膜 |
US7418464B2 (en) * | 2004-01-27 | 2008-08-26 | International Business Machines Corporation | Method, system, and program for storing data for retrieval and transfer |
DE102004047004B4 (de) * | 2004-09-28 | 2017-07-13 | Medi-Globe Gmbh | Implantat, vorzugsweise zur Behandlung der gastroösophagealen Refluxkrankheit |
US7651653B2 (en) | 2004-12-22 | 2010-01-26 | Kimberly-Clark Worldwide, Inc. | Machine and cross-machine direction elastic materials and methods of making same |
TWI317363B (en) * | 2005-05-31 | 2009-11-21 | Univ Chung Yuan Christian | Composite membranes containing polytetrafluoroethylene and method for forming the same |
EP1782760A1 (fr) * | 2005-11-04 | 2007-05-09 | Haavard Haugen | Implant pour le traitement du reflux gastro-oesophagien |
JP4821466B2 (ja) * | 2006-07-03 | 2011-11-24 | 富士ゼロックス株式会社 | 液滴吐出ヘッド |
ES2639183T3 (es) * | 2007-09-19 | 2017-10-25 | The Charles Stark Draper Laboratory, Inc. | Estructuras microfluídicas con sección transversal circular |
US20090234332A1 (en) * | 2008-03-17 | 2009-09-17 | The Charles Stark Draper Laboratory, Inc | Artificial microvascular device and methods for manufacturing and using the same |
US20110186165A1 (en) * | 2009-10-05 | 2011-08-04 | Borenstein Jeffrey T | Three-dimensional microfluidic platforms and methods of use and manufacture thereof |
US20110082563A1 (en) * | 2009-10-05 | 2011-04-07 | The Charles Stark Draper Laboratory, Inc. | Microscale multiple-fluid-stream bioreactor for cell culture |
US9839540B2 (en) | 2011-01-14 | 2017-12-12 | W. L. Gore & Associates, Inc. | Stent |
US10166128B2 (en) | 2011-01-14 | 2019-01-01 | W. L. Gore & Associates. Inc. | Lattice |
US9283072B2 (en) | 2012-07-25 | 2016-03-15 | W. L. Gore & Associates, Inc. | Everting transcatheter valve and methods |
US9931193B2 (en) | 2012-11-13 | 2018-04-03 | W. L. Gore & Associates, Inc. | Elastic stent graft |
US9101469B2 (en) | 2012-12-19 | 2015-08-11 | W. L. Gore & Associates, Inc. | Prosthetic heart valve with leaflet shelving |
US9968443B2 (en) | 2012-12-19 | 2018-05-15 | W. L. Gore & Associates, Inc. | Vertical coaptation zone in a planar portion of prosthetic heart valve leaflet |
US10279084B2 (en) * | 2012-12-19 | 2019-05-07 | W. L. Gore & Associates, Inc. | Medical balloon devices and methods |
US9144492B2 (en) | 2012-12-19 | 2015-09-29 | W. L. Gore & Associates, Inc. | Truncated leaflet for prosthetic heart valves, preformed valve |
US10842918B2 (en) | 2013-12-05 | 2020-11-24 | W.L. Gore & Associates, Inc. | Length extensible implantable device and methods for making such devices |
US9827094B2 (en) | 2014-09-15 | 2017-11-28 | W. L. Gore & Associates, Inc. | Prosthetic heart valve with retention elements |
ES2956016T3 (es) | 2016-04-21 | 2023-12-11 | Gore & Ass | Endoprótesis ajustables diametralmente |
CN115568980A (zh) | 2017-09-12 | 2023-01-06 | W.L.戈尔及同仁股份有限公司 | 用于假体瓣膜的瓣叶框架附连件 |
WO2019067219A1 (fr) | 2017-09-27 | 2019-04-04 | W. L. Gore & Associates, Inc. | Valvule prothétique à cadre extensible et systèmes et procédés associés |
AU2018342223B2 (en) | 2017-09-27 | 2021-04-01 | Edwards Lifesciences Corporation | Prosthetic valves with mechanically coupled leaflets |
AU2018347852B2 (en) | 2017-10-13 | 2021-08-19 | Edwards Lifesciences Corporation | Telescoping prosthetic valve and delivery system |
JP7052032B2 (ja) | 2017-10-31 | 2022-04-11 | ダブリュ.エル.ゴア アンド アソシエイツ,インコーポレイティド | 組織内方成長を促進する医療用弁及び弁膜 |
US11497601B2 (en) | 2019-03-01 | 2022-11-15 | W. L. Gore & Associates, Inc. | Telescoping prosthetic valve with retention element |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2222200A1 (fr) * | 1973-03-19 | 1974-10-18 | Sumitomo Electric Industries | |
FR2265345A1 (fr) * | 1974-04-02 | 1975-10-24 | Gore & Ass | |
FR2336622A1 (fr) * | 1975-12-24 | 1977-07-22 | Sumitomo Electric Industries | Tubulures en polytetrafluoroethylene poreux, et leur procede de preparation |
FR2363351A1 (fr) * | 1976-09-03 | 1978-03-31 | Sumitomo Electric Industries | Procede pour produire des pellicules poreuses asymetriques et produits de ce procede |
FR2364107A1 (fr) * | 1976-09-13 | 1978-04-07 | Sumitomo Electric Industries | Tubes microporeux et procede de fabrication de tels tubes |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA962021A (en) * | 1970-05-21 | 1975-02-04 | Robert W. Gore | Porous products and process therefor |
US4208745A (en) * | 1976-01-21 | 1980-06-24 | Sumitomo Electric Industries, Ltd. | Vascular prostheses composed of polytetrafluoroethylene and process for their production |
JPS5289298A (en) * | 1976-01-21 | 1977-07-26 | Sumitomo Electric Industries | Blood vessel prosthetics of tetrafluoroethylene resin |
GB1537448A (en) * | 1976-08-20 | 1978-12-29 | Sumitomo Electric Industries | Vascular prostheses and process for production thereof |
-
1979
- 1979-11-27 CA CA000340685A patent/CA1147109A/fr not_active Expired
- 1979-11-27 DE DE2947743A patent/DE2947743C2/de not_active Expired
- 1979-11-28 US US06/098,283 patent/US4332035A/en not_active Expired - Lifetime
- 1979-11-28 IT IT50927/79A patent/IT1120048B/it active
- 1979-11-28 AU AU53273/79A patent/AU521190B2/en not_active Expired
- 1979-11-29 GB GB7941151A patent/GB2037294B/en not_active Expired
- 1979-11-29 SE SE7909867A patent/SE435151B/sv not_active IP Right Cessation
- 1979-11-29 NL NLAANVRAGE7908646,A patent/NL179352C/xx not_active IP Right Cessation
- 1979-11-30 FR FR7929579A patent/FR2442713A1/fr active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2222200A1 (fr) * | 1973-03-19 | 1974-10-18 | Sumitomo Electric Industries | |
FR2265345A1 (fr) * | 1974-04-02 | 1975-10-24 | Gore & Ass | |
FR2336622A1 (fr) * | 1975-12-24 | 1977-07-22 | Sumitomo Electric Industries | Tubulures en polytetrafluoroethylene poreux, et leur procede de preparation |
FR2363351A1 (fr) * | 1976-09-03 | 1978-03-31 | Sumitomo Electric Industries | Procede pour produire des pellicules poreuses asymetriques et produits de ce procede |
FR2364107A1 (fr) * | 1976-09-13 | 1978-04-07 | Sumitomo Electric Industries | Tubes microporeux et procede de fabrication de tels tubes |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030225A (en) * | 1987-03-13 | 1991-07-09 | Brown University Research Foundation | Electrically-charged nerve guidance channels |
WO1990005490A1 (fr) * | 1988-11-17 | 1990-05-31 | Brown University Research Foundation | Canaux de guidage a charge electrique pour nerfs |
WO1995010247A1 (fr) * | 1993-10-08 | 1995-04-20 | Impra, Inc. | Greffon vasculaire renforce et son procede de fabrication |
Also Published As
Publication number | Publication date |
---|---|
SE7909867L (sv) | 1980-05-31 |
NL179352B (nl) | 1986-04-01 |
NL7908646A (nl) | 1980-06-03 |
US4332035A (en) | 1982-06-01 |
SE435151B (sv) | 1984-09-10 |
DE2947743C2 (de) | 1983-12-08 |
AU5327379A (en) | 1980-06-05 |
NL179352C (nl) | 1986-09-01 |
IT1120048B (it) | 1986-03-19 |
DE2947743A1 (de) | 1980-06-04 |
FR2442713B1 (fr) | 1982-11-19 |
IT7950927A0 (it) | 1979-11-28 |
GB2037294A (en) | 1980-07-09 |
AU521190B2 (en) | 1982-03-18 |
CA1147109A (fr) | 1983-05-31 |
GB2037294B (en) | 1983-05-25 |
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