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WO2000001420A3 - Medical devices made by rotating mandrel extrusion - Google Patents

Medical devices made by rotating mandrel extrusion Download PDF

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Publication number
WO2000001420A3
WO2000001420A3 PCT/US1999/011746 US9911746W WO0001420A3 WO 2000001420 A3 WO2000001420 A3 WO 2000001420A3 US 9911746 W US9911746 W US 9911746W WO 0001420 A3 WO0001420 A3 WO 0001420A3
Authority
WO
WIPO (PCT)
Prior art keywords
matrix
fibers
mandrel
die
polymer
Prior art date
Application number
PCT/US1999/011746
Other languages
French (fr)
Other versions
WO2000001420A2 (en
Inventor
Hans W Kramer
Original Assignee
Medtronic 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 Medtronic Inc filed Critical Medtronic Inc
Publication of WO2000001420A2 publication Critical patent/WO2000001420A2/en
Publication of WO2000001420A3 publication Critical patent/WO2000001420A3/en

Links

Classifications

    • 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
    • A61L29/06—Macromolecular materials obtained otherwise than 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92809—Particular value claimed
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor
    • B29L2031/7542—Catheters

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A tubing, and a device and method for manufacturing same, involves combining a plurality of strengthening fibers with a polymer matrix. For the method of the present invention, a thermoplastic polymer component is blended with a plurality of liquid crystal polymer particles. This mix is heated to a temperature below approximately 270 °C and extruded to establish the thermoplastic polymer component as a matrix, and to force the particles into elongated fibers embedded in the matrix. Specifically, each fiber is forced into having an aspect ratio greater than about fifty to one. Both the die and mandrel are heated during the extrusion process, to ensure uniform distribution of fibers within the polymer matrix. For the device of the present invention, a passageway is formed between a die and a mandrel through which the polymer mix is extruded. Depending on the particular tubing characteristics desired, the mandrel may or may not be selectively rotated relative to the die during extrusion, resulting in fibers oriented in a helical or a longitudinal configuration, respectively.
PCT/US1999/011746 1998-07-01 1999-05-27 Medical devices made by rotating mandrel extrusion WO2000001420A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10865698A 1998-07-01 1998-07-01
US09/108,656 1998-07-01

Publications (2)

Publication Number Publication Date
WO2000001420A2 WO2000001420A2 (en) 2000-01-13
WO2000001420A3 true WO2000001420A3 (en) 2002-09-19

Family

ID=22323399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/011746 WO2000001420A2 (en) 1998-07-01 1999-05-27 Medical devices made by rotating mandrel extrusion

Country Status (1)

Country Link
WO (1) WO2000001420A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6284333B1 (en) * 1997-09-10 2001-09-04 Scimed Life Systems, Inc. Medical devices made from polymer blends containing low melting temperature liquid crystal polymers
EP1344549B1 (en) * 2002-03-04 2009-11-04 Terumo Kabushiki Kaisha Medical tubing and extrusion die for producing the same
US7727442B2 (en) 2003-07-10 2010-06-01 Boston Scientific Scimed, Inc. Medical device tubing with discrete orientation regions
US7601285B2 (en) 2003-12-31 2009-10-13 Boston Scientific Scimed, Inc. Medical device with varying physical properties and method for forming same
US7264458B2 (en) 2004-01-07 2007-09-04 Boston Scientific Scimed, Inc. Process and apparatus for forming medical device balloons
DK176540B1 (en) 2004-09-24 2008-07-21 Cambi Bioethanol Aps Process for the treatment of biomass and organic waste in order to extract desired biologically based products
US7951116B2 (en) 2004-11-12 2011-05-31 Boston Scientific Scimed, Inc. Selective surface modification of catheter tubing
CA2596134C (en) 2005-01-28 2015-07-21 Mmr Marketing & Management Ag Rotkreuz Extruder system for extruding a fluid
AU2012203471B2 (en) * 2005-01-28 2013-10-31 Mmr Marketing & Management Ag Rotkreuz Extruder system for extruding a fluid
US20140142571A1 (en) * 2012-11-21 2014-05-22 Ticona Llc Liquid Crystalline Polymer Composition for Melt-Extruded Substrates
KR102309873B1 (en) 2020-09-29 2021-10-08 주식회사 바스플렉스 Nozzle tip assembly for multi lumen catheter manufacturing
CN116160656A (en) * 2023-01-16 2023-05-26 赛诺医疗科学技术股份有限公司 Extrusion die, equipment and method for small-caliber PU plastic pipe and PU plastic pipe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189156A (en) * 1989-01-17 1990-07-25 Mitsubishi Cable Ind Ltd Catheter
US5248305A (en) * 1989-08-04 1993-09-28 Cordis Corporation Extruded tubing and catheters having helical liquid crystal fibrils
EP0662385A1 (en) * 1994-01-07 1995-07-12 Cordis Europa N.V. Method for manufacturing a tube-like extrusion profile and a catheter made in accordance with this method
WO1996038194A2 (en) * 1995-06-01 1996-12-05 Scimed Life Systems, Inc. Flow assisted catheter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189156A (en) * 1989-01-17 1990-07-25 Mitsubishi Cable Ind Ltd Catheter
US5248305A (en) * 1989-08-04 1993-09-28 Cordis Corporation Extruded tubing and catheters having helical liquid crystal fibrils
EP0662385A1 (en) * 1994-01-07 1995-07-12 Cordis Europa N.V. Method for manufacturing a tube-like extrusion profile and a catheter made in accordance with this method
WO1996038194A2 (en) * 1995-06-01 1996-12-05 Scimed Life Systems, Inc. Flow assisted catheter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9036, Derwent World Patents Index; Class A96, AN 90-270625, XP002115058 *

Also Published As

Publication number Publication date
WO2000001420A2 (en) 2000-01-13

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