Invention Grant
- Patent Title: Assessment of electrode coupling for tissue ablation
- Patent Title (中): 组织消融电极耦合评估
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Application No.: US12096070Application Date: 2006-12-06
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Publication No.: US09283026B2Publication Date: 2016-03-15
- Inventor: Saurav Paul , Hong Cao , Kedar Ravindra Belhe
- Applicant: Saurav Paul , Hong Cao , Kedar Ravindra Belhe
- 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/US2006/046565 WO 20061206
- International Announcement: WO2007/067628 WO 20070114
- Main IPC: A61B18/04
- IPC: A61B18/04 ; A61B5/053 ; A61B18/12 ; A61B18/14 ; A61B19/00 ; A61B18/00

Abstract:
An electrode catheter (14) and a method for assessing electrode-tissue contact and coupling are disclosed. An exemplary electrode catheter (14) comprises an electrode (20) adapted to apply electrical energy. A measurement circuit (42) is adapted to measure impedance between the electrode (20) and ground as the electrode approaches a target tissue (24). A processor (50) determines a contact and coupling condition for the target tissue (24) based at least in part on reactance of the impedance measured by the measurement circuit (42). In another exemplary embodiment, the electrode catheter (14) determines the contact and coupling condition based at least in part on a phase angle of the impedance.
Public/Granted literature
- US20080300589A1 Assessment of Electrode Coupling for Tissue Ablation Public/Granted day:2008-12-04
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