Wavefront direction mapping catheter system

Details Wavefront direction mapping catheter system Wavefront direction mapping catheter system

1996-07-11

1998-05-26

Kamm, William E.

Surgery

Diagnostic testing

Structure of body-contacting electrode or electrode inserted...

607122, 607125, 607 8, A61B 504, A61B 50402, A61N 105

Patent

active

057556644

ABSTRACT:
A wavefront direction mapping catheter system is disclosed which includes a wire catheter that, when placed on the inner surface of the heart, identifies the direction of the electric field wavefront, and provides output signals for indicating the manner in which a position controller of the system is to be operated for moving the distal tip portion of the catheter toward the source of the wavefront. The distal tip portion of the catheter includes a bipolar electrode array, preferably including first and second pairs of orthogonally arranged bipolar electrodes which provide signals to an analyzer of the system, whereby vector analysis of the wavefront is performed. The signal analysis permits the catheter to be moved toward and positioned at the source of the wavefront or within the wavefront circuit, with the present system thereafter being configured to effect radio frequency energization of the bipolar electrode array for tissue ablation.

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