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Patent Searching and Data


Title:
CATHETER
Document Type and Number:
WIPO Patent Application WO/2021/019924
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a catheter in which a proximal-end section possesses rigidity and a distal-end section is flexible and unlikely to peel off. A catheter 1 includes a first tube-like part 11 and a second tube-like part 21, wherein the first tube-like part 11 is formed: so as to be equipped with a large-diameter section 11A that extends toward a proximal end from a distal end and a small-diameter section 11B that is provided so as to extend toward the proximal end from a proximal end of the large-diameter section 11A and that has a smaller outer diameter than the outer diameter of the large-diameter section 11A; so that the outer circumference of the small-diameter section 11B is covered with the second tube-like part 21; and so that the flexural rigidity of a material forming the first tube-like part 11 becomes lower than the flexural rigidity of a material forming the second tube-like part 21.

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Inventors:
THITIYATORN CHAIYAMOM (JP)
WANCHAT CHAIYAWUTH (JP)
Application Number:
PCT/JP2020/022934
Publication Date:
February 04, 2021
Filing Date:
June 10, 2020
Export Citation:
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Assignee:
ASAHI INTECC CO LTD (JP)
International Classes:
A61M25/00
Domestic Patent References:
WO2019026220A12019-02-07
Foreign References:
JPH09506541A1997-06-30
JP2017140242A2017-08-17
JPH11347129A1999-12-21
JP2005501613A2005-01-20
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
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