Wavefront direction mapping catheter system
July 11, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMultipolar electrosurgical device and method Method for cardiac pacing and sensing using combination of electrodes Method and azimuthal probe for localizing the emergence point of ventricular tachycardias Catheter for mapping and ablation and method therefor Method for catheter mapping and ablation Endocardial mapping and ablation system utilizing a separately controlled ablation catheter and method Catheter for mapping and ablation and method therefor Device and method for multi-phase radio-frequency ablation Catheter for mapping and ablation and method therefor Catheter having a multiple durometer InventorAssigneeApplicationNo. 678163 filed on 07/11/1996US Classes:600/377, Electrode implanted in body607/8, Computing energy required or contact impedance607/122, Catheter or endocardial (inside heart) type607/125With nonlinear locating portionExaminersPrimary: Kamm, William E.Assistant: Layno, Carl H. Attorney, Agent or FirmForeign Patent References
International ClassesA61B 005/04A61B 005/040.2 A61N 001/05 AbstractA 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. | |
