Electrosurgical needle electrode
First Claim
Patent Images
1. An electrosurgical needle for conveying electrosurgical power to tissue to achieve a predetermined electrosurgical effect, comprising:
- an electrically conductive needle element having a first section and a first tapered section tapering towards and terminating at a distalmost conductor tip; and
an insulation layer having a second tapered section generally following the contours of and overlaying the conductive needle element and at least a portion of the first tapered section such that the distalmost conductor tip is exposed while the insulation layer overlays the remainder of the electrically conductive needle element.
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Abstract
An electrosurgical needle includes a body having at least one conductive element in the form of a needle that is surrounded by an insulation layer except at a conductor tip portion of the conductive element. The conductor tip portion and insulation layer each have unique geometric shapes and composition of the parts to reduce or eliminate the production of smoke and eschar and reduce tissue damage. The electrosurgical needle electrode is configured to concentrate the flow of electrosurgical energy at the tip region.
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Citations
45 Claims
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1. An electrosurgical needle for conveying electrosurgical power to tissue to achieve a predetermined electrosurgical effect, comprising:
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an electrically conductive needle element having a first section and a first tapered section tapering towards and terminating at a distalmost conductor tip; and an insulation layer having a second tapered section generally following the contours of and overlaying the conductive needle element and at least a portion of the first tapered section such that the distalmost conductor tip is exposed while the insulation layer overlays the remainder of the electrically conductive needle element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A sterile package kit for use in performing an electrosurgical
a sterile package; - and
a disposable electrosurgical needle sealed within the sterile package, the disposable electrosurgical needle comprising; an electrically conductive needle element having a first section and a first tapered section terminating at a distalmost conductor tip, and an insulation layer having a second tapered section overlaying the conductive needle element which tapers on all sides of the first tapered section to expose the distalmost conductor tip forming a primary reaction region while the insulation layer overlays the remainder of the electrically conductive needle element. - View Dependent Claims (44, 45)
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Specification