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US 2019/0099216 A1Published application
Electrosurgical instrument
OwnerBrandon J. Shuman, Peter Lambe +3inventors
InventorsBrandon J. Shuman, Peter Lambe, Chenhao Fu, Zoie R. Engman, Cassandra A. Saleira
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Abstract
An electrosurgical instrument includes a needle configured as a first electrode and a coil extending through the needle and configured as a second electrode. The coil movable relative to the needle, and as the needle and the coil are inserted into tissue and energized with an electrical energy source, the needle and the coil apply current to the tissue to coagulate the tissue.
Claims29
An electrosurgical instrument comprising:
- a needle configured as a first electrode;
- and
- a coil extending through the needle and configured as a second electrode, the coil being movable relative to the needle,
- wherein as the needle and the coil are inserted into tissue and energized with an electrical energy source, the needle and the coil apply current to the tissue to coagulate the tissue.
1 more element
A method of treating tissue, the method comprising:
- positioning an applicator in a passageway;
- extending a needle through the applicator, the needle being a first electrode;
- piercing the needle into tissue;
- advancing a coil through the needle, a distal portion of the coil piercing into the tissue, the coil being a second electrode;
- and
- energizing the needle and the coil with an electrically energy source in a bipolar mode to coagulate the tissue.
3 more elements
A system for treating tissue comprising:
- an energy source;
- and
- a needle connected to the energy source, the needle being a first electrode;
- a coil extending through the needle and connected to the energy source, the coil being a second electrode and being movable relative to the needle,
- wherein as the needle and the coil are inserted into tissue and energized with the electrical energy source, the needle and the coil apply current to the tissue to coagulate the tissue.
2 more elements
Dependencies are inferred from the claim text.