MXPA03004395A - Estructura tubular de politetrafluoroetileno expandido de micropared de alta densidad. - Google Patents

Estructura tubular de politetrafluoroetileno expandido de micropared de alta densidad.

Info

Publication number
MXPA03004395A
MXPA03004395A MXPA03004395A MXPA03004395A MXPA03004395A MX PA03004395 A MXPA03004395 A MX PA03004395A MX PA03004395 A MXPA03004395 A MX PA03004395A MX PA03004395 A MXPA03004395 A MX PA03004395A MX PA03004395 A MXPA03004395 A MX PA03004395A
Authority
MX
Mexico
Prior art keywords
high density
graft
mandrel
wall
radial strength
Prior art date
Application number
MXPA03004395A
Other languages
English (en)
Inventor
Randy Earl Saylor
Original Assignee
Bard Peripheral Vascular Inc
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 Bard Peripheral Vascular Inc filed Critical Bard Peripheral Vascular Inc
Publication of MXPA03004395A publication Critical patent/MXPA03004395A/es

Links

Classifications

    • 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
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/18—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
    • 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
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/04—Macromolecular materials
    • A61L31/048—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • 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
    • B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
    • B29C55/24—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes radial
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
    • Y10S623/901—Method of manufacturing prosthetic device

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Transplantation (AREA)
  • Biomedical Technology (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

La presente invenciones refiere a una estructura de PTFEe de micropared de alta densidad con retencion a la sutura y resistencia radial incrementada y a un metodo para producir la misma. El material de la invencion tambien logra una reduccion considerable en el espesor de pared y porosidad. El metodo de manufactura involucra la manipulacion de un injerto de pTFEe extruido estandar. El injerto es colocado dentro de un tubo restrictivo y es dilatado como globo a aproximadamente cuatro veces su diametro original, despues de lo cual se coloca sobre un mandril conformado de manera similar que proporciona un ajuste de apriete. Este mandril cargado se coloca dentro de un laminador en donde la pared entera del injerto es movida entre placas metalicas hasta quedar suficientemente laminada. El mandril cargado se coloca entonces dentro de un horno o estufa calentado a una temperatura superior al punto de fusion cristalino del PTFE para bloquear los cambios dentro de la microestructura. El producto final tiene las caracteristicas deseadas de espesor de pared reducido, alta densidad resistencia radial superior a la promedio y retencion a la sutura aumentada.
MXPA03004395A 2000-11-22 2001-11-21 Estructura tubular de politetrafluoroetileno expandido de micropared de alta densidad. MXPA03004395A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71892300A 2000-11-22 2000-11-22
PCT/US2001/043468 WO2002041804A1 (en) 2000-11-22 2001-11-21 High density microwall expanded polytetrafluoroethylene tubular structure

Publications (1)

Publication Number Publication Date
MXPA03004395A true MXPA03004395A (es) 2004-04-20

Family

ID=24888108

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03004395A MXPA03004395A (es) 2000-11-22 2001-11-21 Estructura tubular de politetrafluoroetileno expandido de micropared de alta densidad.

Country Status (9)

Country Link
US (1) US7226558B2 (es)
EP (1) EP1341483B1 (es)
JP (1) JP4215505B2 (es)
AT (1) ATE406146T1 (es)
AU (1) AU2002216683A1 (es)
CA (2) CA2710960A1 (es)
DE (1) DE60135577D1 (es)
MX (1) MXPA03004395A (es)
WO (1) WO2002041804A1 (es)

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Also Published As

Publication number Publication date
US7226558B2 (en) 2007-06-05
ATE406146T1 (de) 2008-09-15
EP1341483A1 (en) 2003-09-10
CA2710960A1 (en) 2002-05-30
WO2002041804A1 (en) 2002-05-30
JP4215505B2 (ja) 2009-01-28
DE60135577D1 (de) 2008-10-09
AU2002216683A1 (en) 2002-06-03
CA2436781A1 (en) 2002-05-30
US20040164445A1 (en) 2004-08-26
CA2436781C (en) 2010-11-02
JP2004513745A (ja) 2004-05-13
EP1341483B1 (en) 2008-08-27

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