JAPAN LIFELINE CO.; LTD.;日本ライフライン株式会社;JAPAN LIFELINE CO., LTD.
发明人:
MORI, Kenji,森 謙二,森 謙二
申请号：
JPJP2013/058878
公开号：
WO2013/183339A1
申请日:
2013.03.26
申请国别(地区):
JP
年份:
2013
代理人:
摘要：
An electrode catheter is provided with: a shaft (10) having a lumen (11) serving as a fluid passage； an irrigation member (20)； and a distal end electrode (30). Irrigation openings (25A) for supplying liquid, which is supplied from the shaft (10), to the surface of the distal end electrode (30) are provided in the irrigation member (20) at equal angular intervals. The distal end of the irrigation member (20) has formed therein liquid guide grooves (26) respectively extending from the irrigation openings (25A) toward the distal end. The distal end electrode (30) has a spherical distal end section (31) including a maximum-diameter section (39) and also has a proximal end section (32). Liquid guide grooves (36) are formed in the surface of the distal end electrode (30), and the liquid guide grooves (36) respectively continue to the guide grooves (26) in the irrigation member (20) and extend toward the distal end until the liquid guide grooves (36) reach at least the maximum-diameter section (39).As a result, the electrode catheter is configured in such a manner that cauterization does not cause an abnormal temperature rise in a part of the distal end electrode, that the surface of the distal end electrode exhibits an excellent cooling effect and an excellent effect of preventing the formation of a thrombus, and that the electrode catheter can perform efficient cauterization treatment.L'invention concerne un cathéter à électrode, qui comprend : une tige (10) ayant une lumière (11) servant de passage de fluide ； un élément d'irrigation (20) ； et une électrode d'extrémité distale (30). Des ouvertures d'irrigation (25A) pour fournir un liquide, qui est fourni à partir de la tige (10), à la surface de l'électrode d'extrémité distale (30) sont ménagées dans l'élément d'irrigation (20) à intervalles angulaires égaux. L'extrémité distale de l'élément d'irrigation (20) a des rainures de guidage de liquide (26) formées à l'intérieur de celui-ci, s'étendant respectivement des o
