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Title:
METHOD FOR PRODUCING BALLOON CATHETER
Document Type and Number:
WIPO Patent Application WO/2021/049261
Kind Code:
A1
Abstract:
A method for producing a balloon catheter comprises: a cylindrical object preparation step of preparing a cylindrical object (10) having a spatial part (11) extending in a far-near direction therein; a balloon preparation step of preparing a balloon (1); a balloon arrangement step of arranging the balloon (1) in the cylindrical object (10) and pressurizing the inside of the balloon (1) to expand the balloon (1); and a balloon contraction step of depressurizing the inside of the balloon (1) and contracting the balloon (1) to form a blade shape part (3). In a cross section orthogonal to the far-near direction of the cylindrical object (10) in the balloon arrangement step, the cylindrical object (10) has a portion P2 at which a distance from a gravity point P1 of the cylindrical object (10) to an inner surface of the cylindrical object (10) is short and a portion P3 at which a distance from the gravity point P1 of the cylindrical object (10) to the inner surface of the cylindrical object (10) is long. A distance D1 from the gravity point P1 to the portion P2 is 50% or more and 95% or less of the distance D2 from the gravity point P1 to the portion P3.

Inventors:
NAKANO YOSHINORI (JP)
KOJIMA MASAHIRO (JP)
KOGA YOJIRO (JP)
TSUEDA MASATO (JP)
Application Number:
PCT/JP2020/031104
Publication Date:
March 18, 2021
Filing Date:
August 18, 2020
Export Citation:
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Assignee:
KANEKA CORP (JP)
International Classes:
B29C49/00; A61M25/10
Foreign References:
US20010047149A12001-11-29
US20060091585A12006-05-04
JPH05293174A1993-11-09
JP2014140462A2014-08-07
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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