Electrosurgical plenum
First Claim
Patent Images
1. An electrosurgical tool comprising:
- a lumen;
an at least rigid plenum formed from a non-conductive material and disposed on a distal end of said lumen, said plenum disposed at least partially around a first electrode, said plenum comprising a plurality of openings and said plenum shielding tissue from said first electrode; and
said first electrode coaxial with a second electrode.
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Accused Products
Abstract
An electrosurgical probe having a plenum which prevents contact of the active electrode with tissue, while simultaneously allowing a fluid/interfacing agents to contact the active electrode.
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Citations
38 Claims
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1. An electrosurgical tool comprising:
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a lumen; an at least rigid plenum formed from a non-conductive material and disposed on a distal end of said lumen, said plenum disposed at least partially around a first electrode, said plenum comprising a plurality of openings and said plenum shielding tissue from said first electrode; and said first electrode coaxial with a second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for performing an electrosurgical procedure comprising:
performing an electrosurgical procedure by contacting first and second electrodes with an aqueous fluid at an area to be treated, wherein the first and second electrodes are coaxially arranged and wherein an at least rigid non-conductive plenum is disposed at least partially around the first electrode and wherein the plenum comprises one or more openings which permit the entry of the aqueous fluid while preventing anatomically-specific tissue structures from contacting the first electrode. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An electrosurgical tool comprising:
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an at least rigid plenum comprising a non-conductive material disposed at least partially around a first electrode, said plenum comprising a plurality of openings, said openings comprising a size which permits fluid to enter a chamber of said plenum; and a second electrode, said first and said second electrodes coaxial with one another. - View Dependent Claims (20, 21, 22, 23)
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24. An electrosurgical tool comprising:
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an at least rigid non-conductive plenum disposed at least partially around a first electrode, said plenum comprising a plurality of openings which permit fluid to enter said plenum, said openings comprising less than about 100% of any side or tip of said plenum; and a second electrode, said first and said second electrodes coaxial. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. An electrosurgical tool comprising:
an at least rigid non-conductive plenum disposed at least partially around an electrode, said plenum comprising one or more openings which permit fluid to enter a chamber of said plenum, said plenum not entirely open on a distal tip thereof, said openings arranged only on said distal tip, and wherein an exterior of said plenum comprises a textured surface. - View Dependent Claims (32, 33, 34)
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35. An electrosurgical tool comprising:
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a first electrode surrounded on all sides and ends by an at least rigid plenum surface, said plenum surface comprising one or more openings having a size which permits flow of an aqueous fluid past said electrode; and a second electrode, said first and second electrodes coaxial with one another.
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36. An electrosurgical tool comprising:
an at least rigid non-conductive plenum disposed at least partially around an electrode, said plenum comprising one or more openings which permit fluid to enter a chamber of said plenum, said plenum not entirely open on a distal tip thereof, said openings arranged only on said distal tip, and wherein said plenum comprises a sharpened edge. - View Dependent Claims (37, 38)
Specification