Invention Grant
- Patent Title: Assessment of electrode coupling for tissue ablation
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Application No.: US15013065Application Date: 2016-02-02
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Publication No.: US10182860B2Publication Date: 2019-01-22
- Inventor: Saurav Paul , Hong Cao , Kedar R. Belhe , Riki Thao
- Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.
- Applicant Address: US MN Maple Grove
- Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
- Current Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
- Current Assignee Address: US MN Maple Grove
- Agency: Marsh Fischmann & Breyfogle LLP
- Agent Russell T. Manning
- Main IPC: A61B18/12
- IPC: A61B18/12 ; A61B5/053 ; A61B18/14 ; 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
- US20160220298A1 ASSESSMENT OF ELECTRODE COUPLING FOR TISSUE ABLATION Public/Granted day:2016-08-04
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