Endoscopic cap electrode and method for using the same
First Claim
1. An apparatus, comprising:
- a first electrode defining an annular shape having an outer perimeter and an inner perimeter and a tapered tissue contacting surface therebetween; and
a second electrode comprising an elongate conductive portion comprising a tapered tip movable relative to the first electrode, wherein the first electrode and the second electrode are configured to conduct electrical current along a conical path through tissue positioned between the first electrode and the second electrode upon energizing at least one of the first electrode or the second electrode.
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Accused Products
Abstract
An apparatus for treating tissue in a tissue treatment region. The apparatus can comprise an electrode ring having an interior perimeter and an electrode probe having a proximal end and a distal end. The distal end of the electrode probe can be structured to axially translate relative to the interior perimeter of the electrode ring. The electrode ring and the electrode probe can be operably structured to conduct current therebetween when at least one of the electrode ring and the electrode probe is energized by an energy source. Further, the energy source can be a Radio Frequency (RF) energy source, a pulsed energy source, an irreversible electroporation energy source, or a pulsed irreversible electroporation energy source. A current from the energy source can be selected to non-thermally ablate tissue in the tissue treatment region.
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Citations
19 Claims
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1. An apparatus, comprising:
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a first electrode defining an annular shape having an outer perimeter and an inner perimeter and a tapered tissue contacting surface therebetween; and a second electrode comprising an elongate conductive portion comprising a tapered tip movable relative to the first electrode, wherein the first electrode and the second electrode are configured to conduct electrical current along a conical path through tissue positioned between the first electrode and the second electrode upon energizing at least one of the first electrode or the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
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an energy source; a first electrode defining an annular shape having an outer perimeter and an inner perimeter and a tapered surface therebetween configured to contact tissue; and a second electrode comprising an elongate conductive portion comprising a tapered tip movable relative to the first electrode, wherein the first electrode and the second electrode are configured to conduct electrical current along a conical path through tissue positioned between the first electrode and the second electrode upon energizing at least one of the first electrode and the second electrode by the energy source. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method, comprising:
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positioning a first electrode defining an annular shape having an outer perimeter and an inner perimeter and a tapered tissue contacting surface therebetween relative to tissue; moving a second electrode comprising an elongate conductive portion comprising a tapered tip relative to the first electrode to position the second electrode relative to tissue; and energizing at least one of the first electrode and the second electrode to conduct electrical current along a conical path through tissue. - View Dependent Claims (17, 18, 19)
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Specification