Title:
アブレーションカテーテル及びアブレーション機器
Document Type and Number:
Japanese Patent JP6507226
Kind Code:
B2
Abstract:
The present invention relates to an ablation catheter (1) for the ablation of tissues comprising: a telescopic tubular body (4) in turn comprising an external tubular body (4a) and an internal tubular body (4b) concentric with each other, and a rod-like guiding element (5) at least partly housed in the internal tubular body (4b) with at least one free end (5a) protruding from the internal tubular body (4b) in correspondence with a distal end of the telescopic body (4); a positioning head (2, 2″, 2′″, 2°, 2*, 2{circumflex over ( )}) and an ablation head (3) in correspondence with the distal end of the telescopic body (4), the positioning head (2,2″,2″′,2′,2*,2{circumflex over ( )}) being situated in the proximity of the free end (5a) of the rod-like guide, and the ablation head (3) in the proximity of the positioning head (2, 2″, 2″′, 2°, 2*, 2{circumflex over ( )}), in a remote position with respect to the free end (5a); a control handpiece at a proximal end of the telescopic body (4) coupled with the guiding element (5), the ablation head (3), the positioning head (2, 2″, 2′″, 2°, 2*, 2{circumflex over ( )}) and the telescopic tubular body (4); wherein the ablation head (3) comprises at least two ablation elements or petals (3a) that can be moved from a rest position in which they are housed in the external tubular body (4a) and an operating position in which they protrude from the external tubular body (4a) like a petal; wherein each of the ablation elements or petals (3a) comprises: a continuous ablation electrode (3b) which extends without interruption over a circumferential peripheral portion of each petal (3a), substantially along an arc of circumference having a longitudinal axis of the rod-like guiding element (5) as its centre; two side portions (3c) of the petal (3a), each connected to an end of the ablation electrode (3b), in correspondence with a curved section, the side portions (3c) and the ablation electrode (3b) being integral with each other, formed by means of the same folded metallic conductor, each ablation petal (3a) being separate and distinct from another ablation petal (3a) of the ablation head, all the ablation petals (3a) of the ablation head being separately connected to a distinct electric energy generator to cause a radiofrequency ablation and/or a pulsed filed ablation in a powered ablation electrode condition (3b).
Inventors:
Parfler, Enrico
Application Number:
JP2017500464A
Publication Date:
April 24, 2019
Filing Date:
March 18, 2015
Export Citation:
Assignee:
Atricus S.P.A.
International Classes:
A61B18/14
Domestic Patent References:
| JP2003514612A | ||||
| JP2010155082A | ||||
| JP2014504909A |
Foreign References:
| US20110276047 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Kato Kazunori