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US 2014/0180077 A1Published application
Tissue ablation catheter and methods of ablating tissue
AssigneeVolcano Corporation
InventorsScott Huennekens, Cheryl D. Rice
Life of this patent
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Abstract
Catheters having expandable members, e.g., balloons, incorporating heating elements and temperature sensors for controlled delivering of energy to tissues, i.e., to treat diseases, especially hypertension. The invention also describes methods for monitoring and controlling the amount of energy delivered to the tissue.
Claims20
A balloon catheter for ablating a tissue of a subject, comprising
- an expandable balloon having a first temperature sensor integrated into a balloon wall;
- a catheter body having a distal end and a proximal end and configured to deliver the expandable balloon to a tissue with the distal end of the catheter;
- a lumen in fluid communication with the expandable balloon and the proximal end of the catheter;
- and
- a second temperature sensor, located at the distal end of the catheter and configured to measure a temperature of a fluid within the balloon.
2 more elements
A method for applying energy to a tissue in a subject, comprising:
- placing an expandable member having a temperature sensor in proximity to a tissue;
- expanding the expandable member to cause the expandable member to contact the tissue;
- providing a heated fluid to the expandable member;
- applying energy to the tissue;
- measuring a temperature of the tissue with the temperature sensor in the presence of the heated fluid;
- and
- determining if it is safe to apply more energy to the tissue by comparing the measured temperature to a predetermined temperature.
4 more elements
Dependencies are inferred from the claim text.