Title:
示差温度測定法を用いたアブレーションカテーテルの接触の感知
Document Type and Number:
Japanese Patent JP5781301
Kind Code:
B2
Abstract:
Tissue ablation is carried out using insertion tube having at least one ablation electrode, a first temperature sensor disposed on the distal portion sufficiently proximate the ablation electrode to detect heat generated during the ablation procedure, a second temperature sensor disposed on the distal portion sufficiently distant from the ablation electrode to be unable to detect the heat, and electronic logic circuitry linked to the first temperature sensor and the second temperature sensor and programmed to compute a temperature differential between respective temperatures sensed by the first temperature sensor and the second temperature sensor when conveying the electromagnetic energy. Satisfactory contact status between the ablation electrode and the target tissue is indicated when the temperature differential exceeds a predetermined threshold.
Inventors:
Asaph Gobari
Christopher Thomas Beekler
Athanasios Papio Anne
Christopher Thomas Beekler
Athanasios Papio Anne
Application Number:
JP2010285651A
Publication Date:
September 16, 2015
Filing Date:
December 22, 2010
Export Citation:
Assignee:
Biosense Webster (Israel), Ltd.
International Classes:
A61B18/12; A61M25/092
Domestic Patent References:
| JP2007152139A | ||||
| JP2005052641A | ||||
| JP2004148131A | ||||
| JP2008080152A |
Foreign References:
| US6425894 |
Attorney, Agent or Firm:
Konobu Kato
Takafumi Oshima
Takafumi Oshima