Electrical ablation devices and methods
First Claim
Patent Images
1. An electrical ablation apparatus comprising:
- an elongated body, comprising;
a proximal end;
a distal end;
a non-conductive tip at the distal end; and
a tapered segment intermediate the proximal end and the distal end, wherein the tapered segment comprises a chamfer cut;
a conductive sheath at least partially surrounding the tapered segment; and
an electrical conductor electrically connected to the conductive sheath.
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Abstract
An ablation apparatus may generally comprise an elongated body having a proximal end and a distal end and a non-conductive tip at the distal end, a conductive sheath at least partially surrounding a portion of the elongated body intermediate the proximal end and the tip, and an electrical conductor electrically connected to the conductive sheath. The ablation apparatus may comprise a first electrode having a first diameter and a plurality of second electrodes each having a second diameter, wherein the first diameter is greater than the second diameter. Methods of using the ablation apparatus are also described.
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Citations
21 Claims
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1. An electrical ablation apparatus comprising:
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an elongated body, comprising; a proximal end; a distal end; a non-conductive tip at the distal end; and a tapered segment intermediate the proximal end and the distal end, wherein the tapered segment comprises a chamfer cut; a conductive sheath at least partially surrounding the tapered segment; and an electrical conductor electrically connected to the conductive sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electrical ablation apparatus, comprising:
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an elongate portion, comprising; a tapered segment comprising a cutout; and a non-conductive cutting edge; a conductive sheath positioned at least partially around the tapered segment proximal to the non-conductive cutting edge; and an electrical conductor electrically connected to the conductive sheath. - View Dependent Claims (12, 13, 14, 15)
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16. An electrical ablation apparatus, comprising:
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a body, including; a non-conductive proximal portion; a non-conductive distal portion comprising a distal tip; and a tapered portion intermediate the non-conductive proximal portion and the non-conductive distal portion, wherein the tapered portion comprises an elongate opening; a conductive intermediate portion circumferentially surrounding at least a portion of the elongate opening; and an electrical conductor electrically connected to the conductive intermediate portion. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification