Electrosurgical Instrument
AssigneeSpiretion Inc. d/b/a Olympus Respiratory America
InventorsBrandon J. Shuman, Peter A. Lambe, Christopher A. Saleira, Zoie R. Engman
Life of this patent
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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. The coil includes a fluid transmission feature that allows a fluid to flow distally for cooling the coil.
Claims18
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, the coil comprises:
- a straight section;
- a coil section;
- and
- a fluid transmission feature,
- 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.
A system for treating tissue comprising:
- an energy source;
- a fluid source;
- and
- an electrosurgical instrument comprising:
- a needle connected to the energy source, the needle being a first electrode, wherein the needle is in fluid communication with the fluid source;
- and
- 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, the coil comprising:
- a straight section;
- a coil section;
- and
- a fluid transmission feature configured to wick fluid transmitted by the fluid source via the needle,
- wherein as the needle and the coil are inserted into a target tissue and energized with the energy source, the needle and the coil apply current to the target tissue to coagulate the target tissue.
Dependencies are inferred from the claim text.