Variable length electrodes for delivery of irrigated ablation
First Claim
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1. 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.
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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.
199 Citations
25 Claims
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1. A hemostat-type ablation device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A hemostat-type ablation device comprising:
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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. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification