Electrosurgical device with internal digestor electrode
First Claim
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1. An electrosurgical wand for electrosurgically treating a target tissue comprising:
- an elongate shaft having a proximal handle end and a distal end;
a first active electrode surface disposed on the distal end of the shaft and a first digester electrode surface recessed away from the first active electrode surface and electrically connected with the first active electrode surface; and
an aspiration aperture disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen; and
a return electrode located proximal to the active electrode comprising a crescent shaped discharge aperture, the crescent shaped aperture comprising a central axis coaxial with a first largest opening portion of the aperture and wherein the central axis is further disposed approximately in line with the first active electrode surface; and
wherein the crescent aperture further comprises two narrower opening portions that extend from the central axis, in a lateral and distal direction.
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Abstract
An electrosurgical wand is described, for treating a target tissue using electrosurgical energy, which has an elongate shaft with a handle end and a distal end. A first active electrode surface is disposed on the distal end of the shaft and a first digester electrode surface is recessed away from the first active electrode surface and electrically connected with the first active electrode surface. An aspiration aperture is also disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen.
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Citations
10 Claims
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1. An electrosurgical wand for electrosurgically treating a target tissue comprising:
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an elongate shaft having a proximal handle end and a distal end; a first active electrode surface disposed on the distal end of the shaft and a first digester electrode surface recessed away from the first active electrode surface and electrically connected with the first active electrode surface; and an aspiration aperture disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen; and a return electrode located proximal to the active electrode comprising a crescent shaped discharge aperture, the crescent shaped aperture comprising a central axis coaxial with a first largest opening portion of the aperture and wherein the central axis is further disposed approximately in line with the first active electrode surface; and
wherein the crescent aperture further comprises two narrower opening portions that extend from the central axis, in a lateral and distal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification