Title:
可膨張性部材を備えた周囲切除装置アセンブリ
Document Type and Number:
Japanese Patent JP2007516802
Kind Code:
A
Abstract:
The present invention involves a surgical device and method of use, particularly an assembly and method incorporating a peanut or barbell shaped expandable member along the distal region of an ablation device to facilitate ablation of a circumferential region of tissue engaged by the expandable member. The ablation device assembly includes an elongate body with a proximal end portion, a distal end portion, and a longitudinal axis. A contact member is located along the distal end portion of the elongate body. The contact member has a circumferential wall and is expandable from a radially collapsed condition to a radially expanded condition. The contact member also includes a single chamber having first and second bulbous sections separated by a longitudinal mid-section, wherein the first bulbous section has a smaller outside diameter than the second bulbous section when the contact member is in the expanded condition. The ablation device also has an ablation element having an ablative energy source that is located along the distal end portion, wherein the ablation element cooperates with the contact member such that the ablative energy source emits a substantially circumferential pattern of energy through the circumferential wall.
Inventors:
Bora Sumita
Application Number:
JP2006547548A
Publication Date:
June 28, 2007
Filing Date:
December 23, 2004
Export Citation:
Assignee:
Biosense Webster, Inc.
International Classes:
A61B17/00; A61B18/00; A61B18/02; A61B18/04; A61B18/14; A61B18/18; A61B18/20; A61F2/958; A61M25/00; A61N7/02
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Hideaki Tazawa
Hamada Hatsune
Konobu Kato
Hideaki Tazawa
Hamada Hatsune