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1. (WO2018008250) ELECTRODE CATHETER

Pub. No.:    WO/2018/008250    International Application No.:    PCT/JP2017/017735
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Thu May 11 01:59:59 CEST 2017
IPC: A61B 5/042
Applicants: JAPAN LIFELINE CO., LTD.
日本ライフライン株式会社
Inventors: MASUDA Takuya
桝田 拓也
SASAKI Takuya
佐々木 卓也
Title: ELECTRODE CATHETER
Abstract:
The purpose of the present invention is to provide an electrode catheter wherein even if a basket-shaped electrode assembly is expanded, proximal and distal portions thereof can be sufficiently irrigated with a liquid. This electrode catheter is provided with a catheter shaft (10), an electrode assembly (30), and a pipe (60). The pipe (60) has an irrigation lumen (60L) formed therein, and a distal irrigation opening group (61G) comprising openings (61) for irrigating the distal portion of the electrode assembly (30) and a proximal irrigation opening group (62G) comprising openings (62) for irrigating the proximal portion of the electrode assembly (30) are formed on the outer circumferential surface of the pipe (60). By pulling the pipe (60), the electrode assembly (30) is expanded and a part of the region in which the proximal irrigation opening group (62G) is formed is withdrawn into the catheter shaft (10) so that a liquid is jetted from the irrigation lumen through the openings (62) which are not withdrawn into the catheter shaft (10) and the openings (61) of the distal irrigation opening group (61G).