Balloon catheter with large area electrodes
AssigneeBiosense Webster (Israel) Ltd.
InventorsAssaf Govari, Christopher Thomas Beeckler
Life of this patent
Estimating the term…
Abstract
A medical apparatus, including a probe having a distal end configured for insertion into a body cavity and containing a lumen that opens through the distal end, and an inflatable balloon deployable through the lumen into the body cavity such that when the balloon is deployed through the lumen and inflated, a distal pole on a distal side of the balloon is located opposite the lumen. In embodiments of the present invention, the medical apparatus also includes an electrode attached to the distal side of the inflatable balloon and extending over at least 50% of an area of the distal side of the balloon that is within 30° of arc from the distal pole.
Claims22
A medical apparatus, comprising:
- a probe having a distal end configured for insertion into a body cavity and containing a lumen that opens through the distal end;
- an inflatable balloon deployable through the lumen into the body cavity such that when the balloon is deployed through the lumen and inflated, a distal pole on a distal side of the balloon is located opposite the lumen;
- and
- an electrode attached to the distal side of the inflatable balloon and extending over at least 50% of an area of the distal side of the balloon that is within 30° of arc from the distal pole.
A method, comprising:
- providing a probe having a distal end configured for insertion into a body cavity and containing a lumen that opens through the distal end;
- providing an inflatable balloon that is deployable through the lumen into the body cavity such that when the balloon is deployed through the lumen and inflated, a distal pole on a distal side of the balloon is located opposite the lumen;
- and
- attaching, to the distal side of the inflatable balloon, an electrode that extends over at least 50% of an area of the distal side of the balloon that is within 30° of arc from the distal pole.
A method, comprising:
- inserting a distal end of a medical probe into a body cavity of a patient, the medical probe comprising:
- a lumen that opens through the distal end,
- an inflatable balloon deployable through the lumen into the body cavity such that when the balloon is deployed through the lumen and inflated, a distal pole on a distal side of the balloon is located opposite the lumen, and
- an electrode attached to the distal side of the inflatable balloon and extending over at least 50% of an area of the distal side of the balloon that is within 30° of arc from the distal pole;
- selecting, in the body cavity, an area of tissue to ablate in a region distal to the catheter;
- controlling an inflation pressure of the balloon responsively to a size of the area;
- pressing the distal side of the balloon against the selected area of the tissue;
- and
- ablating the selected area of the tissue.
Dependencies are inferred from the claim text.