Invention Grant
- Patent Title: Assessment of electrode coupling for tissue ablation
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Application No.: US12095701Application Date: 2006-12-06
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Publication No.: US09283025B2Publication Date: 2016-03-15
- 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/US2006/061712 WO 20061206
- International Announcement: WO2007/067939 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
- US20100241117A1 Assessment of Electrode Coupling for Tissue Ablation Public/Granted day:2010-09-23
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