Methods and systems related to electrosurgical wands
First Claim
1. An electrosurgical wand comprising:
- an elongate housing that defines a handle end and a distal end;
a tubing member coupled to the elongate housing;
a spacer of non-conductive material disposed on the distal end, the spacer defining an end surface and an outer surface;
a conductive electrode with a primary aperture extending through the conductive electrode and disposed on the spacer end surface, the conductive electrode defining an electrode outer perimeter;
a spacer aperture extending through a thickness of the spacer up to the primary aperture, the spacer aperture fluidly coupled to the tubing member; and
a first flow channel defined within the spacer, fluidly connected with the tubing member and terminating with a first flow channel aperture disposed on the spacer outer surface and abutting the electrode outer perimeter, configured to draw liquids and gases around the electrode outer perimeter and through the first flow channel aperture so as to aid visibility of the conductive electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
Electrosurgical wands. At least some of the illustrative embodiments are electrosurgical wands having features that reduce contact of tissue with an active electrode of a wand, decrease the likelihood of clogging, and/or increase the visibility within surgical field. For example, wands in accordance with at least some embodiments may comprise standoffs, either along the outer perimeter of the active electrode, or through the main aperture in the active electrode, to reduce tissue contact. Wands in accordance with at least some embodiments may implement slots on the active electrodes to increase bubble aspiration to help keep the visual field at the surgical site clear. Wands in accordance with at least some embodiments may implement aspiration flow pathways within the wand that increase in cross-sectional area to reduce the likelihood of clogging.
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Citations
22 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 tubing member coupled to the elongate housing; a spacer of non-conductive material disposed on the distal end, the spacer defining an end surface and an outer surface; a conductive electrode with a primary aperture extending through the conductive electrode and disposed on the spacer end surface, the conductive electrode defining an electrode outer perimeter; a spacer aperture extending through a thickness of the spacer up to the primary aperture, the spacer aperture fluidly coupled to the tubing member; and a first flow channel defined within the spacer, fluidly connected with the tubing member and terminating with a first flow channel aperture disposed on the spacer outer surface and abutting the electrode outer perimeter, configured to draw liquids and gases around the electrode outer perimeter and through the first flow channel aperture so as to aid visibility of the conductive electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An electrosurgical wand comprising:
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an elongate housing that defines a handle end and a distal end; a tubing member coupled to the elongate housing; a spacer of non-conductive material disposed on the distal end, the spacer having an end surface and outer surface; a conductive electrode disposed on the spacer end surface, the conductive electrode defines a tissue treatment surface having an electrode outer peripheral edge surface; a spacer aperture extending through a thickness of the spacer, the spacer aperture fluidly coupled to the tubing member, the spacer aperture configured to provide a conduit for gasses, tissue and liquid; a plurality of flow channels extending through the spacer and fluidly coupled to the spacer aperture, the plurality of flow channels terminating with a corresponding plurality of apertures at the spacer outer surface adjacent the electrode outer peripheral edge surface, configured to draw gasses and liquids away from the tissue treatment surface over the electrode outer peripheral edge surface and through the plurality of flow channel apertures.
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22. An electrosurgical wand comprising:
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an elongate housing that defines a handle end and a distal end; a tubing member coupled to the elongate housing; a spacer of non-conductive material disposed on the distal end; a conductive electrode disposed on the spacer, the conductive electrode comprises an electrode outer perimeter and a primary aperture; a spacer aperture extending through a thickness of the spacer up to the primary aperture and fluidly coupled to the tubing member, the spacer aperture configured to provide a conduit for gasses, tissue and liquids; an electrode aperture extending through the conductive electrode and fluidly coupled to the spacer aperture, the electrode aperture disposed adjacent the outer perimeter and configured to provide a conduit limited to gasses only; and a fluid flow channel terminating at a fluid flow aperture on an outer surface of the spacer abutting the electrode outer perimeter, the fluid flow channel fluidly coupled to the electrode aperture, the fluid flow channel configured to draw fluid disposed adjacent the primary aperture over the electrode outer perimeter.
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Specification