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1. (WO2018142761) BALLOON CATHETER

Pub. No.:    WO/2018/142761    International Application No.:    PCT/JP2017/044098
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Fri Dec 08 00:59:59 CET 2017
IPC: A61M 25/10
A61L 29/06
A61L 29/14
A61M 25/01
Applicants: JAPAN LIFELINE CO., LTD.
日本ライフライン株式会社
Inventors: SEKI, Ryo
関 涼
OKAWA, Yasuhiro
大川 靖洋
Title: BALLOON CATHETER
Abstract:
The purpose of the present invention is to provide a balloon catheter having high capability of passing through a fine blood vessel portion and having high pushability during the passage of the balloon catheter through a lesion such as a constricted portion. This balloon catheter is a rapid exchange type balloon catheter provided with an outer tube (15), a balloon (35), an inner tube (45), and a core wire (55), wherein the front end section (46) of the inner tube (45) is secured to the front end section (36) of the balloon (35) and wherein the rear end section (47) of the inner tube (45) is secured to a portion (16) constituting the outer tube (15). The inner tube 45 is formed only from a PEEK resin. The inner diameter of the inner tube (45) is in the range of 0.39 to 0.42 mm, the wall thickness of the inner tube (45) is in the range of 30 to 50 μm, and a bending load measured by a three-point bending test is in the range of 1.5 to 5.0 gf.