Title:
医療器具に使用される二軸配向多層ポリマーチューブ
Document Type and Number:
Japanese Patent JP2005519649
Kind Code:
A
Abstract:
A tubular extruded member particularly suitable for use in medical devices such as intravascular catheters and guide wires, wherein the extruded tubular member includes multiple layers having biaxial helical orientation in different directions. A counter-rotation extrusion process may be used to orient the layers in different biaxial helical directions. The counter-rotation extrusion process provides orientation in two different circumferential directions in addition to a longitudinal direction. By combining the dual direction or biaxial helical orientation with multiple layers, different layers of the tubular member may be tailored to have the desired mechanical properties.
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Inventors:
One, lishao
Application Number:
JP2003510239A
Publication Date:
July 07, 2005
Filing Date:
May 01, 2002
Export Citation:
Assignee:
Boston Scientific Limited
International Classes:
A61L29/00; A61L31/00; A61M25/00; A61M25/01; B29C48/09; B29C48/32; B29C48/33; B29L9/00; B29L23/00; (IPC1-7): A61M25/00; A61L29/00; A61L31/00; A61M25/01; B29C47/06; B29C47/20
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda