WO2000001420A3 - Medical devices made by rotating mandrel extrusion - Google Patents
Medical devices made by rotating mandrel extrusion Download PDFInfo
- 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
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
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.
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 (11)
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 |
US20030165647A1 (en) * | 2002-03-04 | 2003-09-04 | 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 |
DE112005003523A5 (en) * | 2005-01-28 | 2008-01-03 | Mmr Marketing & Management Ag Rotkreuz | Extruder system for strand forming a fluid |
AU2012203471B2 (en) * | 2005-01-28 | 2013-10-31 | Mmr Marketing & Management Ag Rotkreuz | Extruder system for extruding a fluid |
WO2014081650A1 (en) * | 2012-11-21 | 2014-05-30 | 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 |
Citations (4)
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 |
-
1999
- 1999-05-27 WO PCT/US1999/011746 patent/WO2000001420A2/en active Application Filing
Patent Citations (4)
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)
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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