System and method for delivery of energy to tissue while compensating for collateral tissue
AssigneeVytronUS, Inc.
InventorsHira V. Thapliyal, David A. Gallup, James W. Arenson
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Abstract
A tissue ablation method for treating atrial fibrillation in a patient comprises locating an ostium of a pulmonary vein and positioning an interventional catheter adjacent the ostium. The interventional catheter has an energy source. Collateral tissue adjacent the ostium is located and tissue around the ostium is ablated with energy from the energy source so as to form a contiguous lesion circumscribing the ostium. The lesion blocks aberrant electrical pathways in the tissue so as to reduce or eliminate the atrial fibrillation. The ablating is modified so as to avoid ablating or otherwise damaging the collateral tissue.
Claims14
A method for ablating tissue, said method comprising:
- providing a catheter having an ultrasound transducer adjacent a distal end thereof and a sensor adjacent the ultrasound transducer;
- positioning the ultrasound transducer and the sensor adjacent target tissue;
- ablating the target tissue with a beam of ultrasound from the ultrasound transducer thereby forming a continuous lesion in the target tissue;
- sensing collateral tissue adjacent the target tissue with the sensor;
- and
- modifying the ablating based on feedback from the sensing thereby avoiding or minimizing ablation of the collateral tissue.
A system for ablating tissue, said system comprising:
- a catheter having an ultrasound transducer adjacent a distal end thereof and a sensor adjacent the ultrasound transducer,
- wherein the ultrasound transducer is adapted to deliver a beam of ultrasound energy to target tissue thereby ablating the target tissue and forming a continuous lesion in the target tissue, and
- wherein the sensor is adapted to detects collateral tissue adjacent the target tissue, and
- wherein the sensor provides feedback to the ultrasound transducer so as to avoid ablation of the collateral tissue based on the detection of the collateral tissue.
Dependencies are inferred from the claim text.