ELECTROSURGICAL WAND AND RELATED METHOD AND SYSTEM
First Claim
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1. An electrosurgical wand comprising:
- an elongate housing that defines a handle end and a distal end;
a connector comprising a first and second electrical pins;
a first discharge aperture on the distal end of the elongate housing, the first discharge aperture fluidly coupled to a first fluid conduit, and the first fluid conduit within the elongate housing;
a first active electrode of conductive material disposed on the distal end of the elongate housing, and the first active electrode electrically coupled to the first electrical pin;
a first return electrode of conductive material disposed within the first fluid conduit proximate to the first aperture such that at least some fluid flowing in the first fluid conduit contacts the first return electrode before discharging through the first discharge aperture toward the first active electrode, and the first return electrode electrically coupled to the second electrical pin; and
an aspiration aperture on the distal end of the elongate housing fluidly coupled to a second fluid conduit, the second fluid conduit within the elongate housing.
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Abstract
An electrosurgical wand. At least some of the illustrative embodiments are electrosurgical wands including an elongate housing that defines a handle end and a distal end, a first discharge aperture on the distal end of the elongate housing, a first active electrode of conductive material disposed on the distal end of the elongate housing, a first return electrode of conductive material disposed within the first fluid conduit, and an aspiration aperture on the distal end of the elongate housing fluidly coupled to a second fluid conduit.
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Citations
35 Claims
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1. An electrosurgical wand comprising:
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an elongate housing that defines a handle end and a distal end; a connector comprising a first and second electrical pins; a first discharge aperture on the distal end of the elongate housing, the first discharge aperture fluidly coupled to a first fluid conduit, and the first fluid conduit within the elongate housing; a first active electrode of conductive material disposed on the distal end of the elongate housing, and the first active electrode electrically coupled to the first electrical pin; a first return electrode of conductive material disposed within the first fluid conduit proximate to the first aperture such that at least some fluid flowing in the first fluid conduit contacts the first return electrode before discharging through the first discharge aperture toward the first active electrode, and the first return electrode electrically coupled to the second electrical pin; and an aspiration aperture on the distal end of the elongate housing fluidly coupled to a second fluid conduit, the second fluid conduit within the elongate housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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flowing a conductive fluid within a fluid conduit disposed within a electrosurgical wand, the conductive fluid flows past a return electrode disposed within the fluid conduit, and is then discharged through a discharge aperture; applying electrical energy between an active electrode and the return electrode; forming, responsive to the energy, a plasma proximate to the active electrode; and treating a wound by placing the active electrode adjacent to the wound, and translating the active electrode along the wound. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A system comprising:
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an electrosurgical controller, the electrosurgical controller configured to produce radio frequency (RF) energy at an active terminal with respect to a return terminal; an electrosurgical wand coupled to the electrosurgical controller, the electrosurgical wand comprising; an elongate housing that defines a handle end and a distal end; a first discharge aperture on the distal end of the elongate housing, the first discharge aperture fluidly coupled to a first fluid conduit, and the first fluid conduit within the elongate housing; a first active electrode of conductive material disposed on the distal end of the elongate housing, and the first active electrode electrically coupled to the active terminal; a first return electrode of conductive material disposed within the first fluid conduit proximate to the first aperture such that at least some fluid flowing in the first fluid conduit contacts the first return electrode before discharging through the first discharge aperture toward the first active electrode, and the first return electrode electrically coupled to the return terminal; and an aspiration aperture on the distal end of the elongate housing fluidly coupled to a second fluid conduit, the second fluid conduit within the elongate housing. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification