Invention Grant
- Patent Title: Assessment of electrode coupling of tissue ablation
- Patent Title (中): 评估组织消融的电极耦合
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Application No.: US12095688Application Date: 2006-12-06
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Publication No.: US09271782B2Publication Date: 2016-03-01
- Inventor: Saurav Paul , Kedar Ravindra Belhe , Hong Cao , Chou Thao
- Applicant: Saurav Paul , Kedar Ravindra Belhe , Hong Cao , Chou Thao
- Applicant Address: US MN St. Paul
- Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
- Current Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
- Current Assignee Address: US MN St. Paul
- Agency: Marsh Fischmann & Breyfogle LLP
- International Application: PCT/US2006/061714 WO 20061206
- International Announcement: WO2007/067941 WO 20070614
- Main IPC: A61B18/12
- IPC: A61B18/12 ; A61B18/14 ; A61B19/00 ; A61B18/00

Abstract:
An electrode catheter and a method for assessing electrode-tissue contact and coupling are disclosed. An exemplary electrode catheter comprises an electrode adapted to apply electrical energy. A measurement circuit is adapted to measure impedance between the electrode and ground as the electrode approaches a target tissue. A processor determines a contact and coupling condition for the target tissue based at least in part on reactance of the impedance measured by the measurement circuit. In another exemplary embodiment, the electrode catheter determines the contact and coupling condition based at least in part on a phase angle of the impedance.
Public/Granted literature
- US20100228247A1 Assessment of electrode coupling of tissue ablation Public/Granted day:2010-09-09
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