Endocardial mapping and ablation system utilizing separately controlled steerable ablation catheter with ultrasonic imaging capabilities and method
September 14, 2013. 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 ReferencesNeedle with ultrasonically reflective displacement scale Cardiac ultrasonically marked leads and method for used same Catheter apparatus, system and method for intravascular two-dimensional ultrasonography Laser catheter with imaging capability Ultrasonic imaging catheter having rotational image correlation Endocardial mapping and ablation system and catheter probe Method for mapping, ablation, and stimulation using an endocardial catheter Endocardial catheter for mapping and/or ablation with an expandable basket structure having means for providing selective reinforcement and pressure sensing mechanism for use therewith, and method Deflectable loop electrode array mapping and ablation catheter for cardiac chambers Apparatus and method for intra-cardiac ablation of arrhythmias InventorAssigneeApplicationNo. 121166 filed on 09/14/1993US Classes:600/374, Electrode placed in or on heart600/393, Plural electrodes carried on single support600/466, Catheter600/470, By inflatable ballon600/471, Tool (e.g., ablation, abrasion, cutting)607/122, Catheter or endocardial (inside heart) type607/123Stimulating plural chambers (e.g., atrium and ventricle)ExaminersPrimary: Pfaffle, Krista M.Attorney, Agent or FirmForeign Patent References
International ClassesA61B 005/04A61N 001/05 AbstractEndocardial mapping and ablation system for introduction into a chamber of the heart formed by a wall and having a passage leading thereto comprising a catheter probe having a distal extremity adapted to be positioned in the chamber of the heart. The catheter probe is comprised of a plurality of flexible longitudinally extending circumferentially spaced-apart arms adapted to be disposed within the chamber of the heart. Electrodes are carried by the arms and are adapted to be moved into engagement with the wall of the heart. Markers visibly ultrasonically are carried by the arms for encoding the arms so that the one arm can be distinguished from another. An ablation catheter is carried by and is slidably mounted in the catheter probe and has a distal extremity movable into the chamber of the heart while the catheter probe is disposed therein. The ablation catheter has control means whereby the distal extremity can be moved independently of movement of the catheter probe while the distal extremity of the catheter probe is in the chamber of the heart. An ablation electrode is carried by the distal extremity of the ablation catheter. Ultrasonic viewing means is carried by the distal extremity of the ablation catheter. The distal extremity of the ablation catheter is movable into positions to view ultrasonically the markers carried by the arms of the catheter probe so that the arms can be identified and the spacing of the arms can be ascertained. | |
