Variable length electrodes for delivery of irrigated ablation
AssigneeMedtronic, Inc.
InventorsDavid E Francischelli, Richard H. Comben, Michael F Hoey, Rahul Mehra, Jon M. Ocel, Robert Pearson, Paul V. Trescony, Scott E. Jahns
Life of this patent
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Abstract
A device for ablating tissue is provided. The device comprises a conductive element with a channel for irrigating fluid formed therein, which is in contact with a non-conductive microporous interface. All or a portion of the interface may be removable. When the interface is removed, a portion of the conductive element is exposed for use in ablating tissue. Methods of using the device and of removing the interface are also provided.
Claims25
A hemostat-type ablation device comprising:
- a conductive element;
- first and second jaw members configured to receive a portion of tissue between the first and second jaw members, wherein the conductive element is adjacent the first jaw member;
- a lumen extending through at least a portion of the conductive element and adapted to receive a fluid therein such that the fluid is in contact with the conductive element;
- and
- a micro-porous, non-conductive interface positioned adjacent the conductive element and the portion of tissue to allow the fluid to pass from the lumen, through the interface and into contact with the tissue.
A hemostat-type ablation device comprising:
- a conductive wire element;
- and
- first and second jaws configured to receive a portion of tissue between the first and second jaws, wherein the conductive wire element is adjacent at least one of the first and second jaws;
- a lumen extending adjacent at least a portion of the conductive wire element and adapted to receive a fluid therein such that the conductive wire is in contact with the fluid;
- and
- a micro-porous, non-conductive interface positioned adjacent the conductive element and the portion of tissue to allow the fluid to pass from the lumen, through the interface and into contact with the tissue.
Dependencies are inferred from the claim text.