Conductive member to promote insulative medium formation for facilitating tissue puncture in a liquid medium
AssigneeBoston Scientific Scimed, Inc.
InventorsChristian BALKOVEC, Gareth DAVIES
Life of this patent
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Abstract
An electrosurgical system for puncturing tissue includes an electrosurgical generator configured to generate radiofrequency (RF) energy and a crossing device connected to the electrosurgical generator. The crossing device includes an electrode positioned at a distal tip of the crossing device, wherein the electrode has a surface texture that is configured to form and hold a gaseous insulation layer that is formed when the crossing device is positioned in an electrically conductive liquid medium and is energized by the electrosurgical generator.
Claims20
An electrosurgical system for puncturing tissue, the electrosurgical system comprising:
- an electrosurgical generator configured to generate radiofrequency (RF) energy;
- and
- a crossing device connected to the electrosurgical generator, the crossing device including an electrode positioned at a distal tip of the crossing device, wherein the electrode has a surface texture that is configured to form and hold a gaseous insulation layer that is formed when the crossing device is positioned in an electrically conductive liquid medium and is energized by the electrosurgical generator.
An electrosurgical system for puncturing tissue, the electrosurgical system comprising:
- an electrosurgical generator configured to generate radiofrequency (RF) energy;
- and
- a crossing device connected to the electrosurgical generator, the crossing device including an electrode positioned at a distal tip of the crossing device, wherein the electrode has a helical coil that is configured to form and hold a gaseous insulation layer that is formed when the crossing device is positioned in an electrically conductive liquid medium and is energized by the electrosurgical generator.
A method of operating an electrosurgical system, the method comprising:
- positioning a crossing member, wherein the crossing member includes a crossing device;
- energizing an electrode of the crossing device using an electrosurgical generator;
- forming and coalescing gaseous bubbles on the electrode;
- and
- vaporizing tissue with the energized electrode.
Dependencies are inferred from the claim text.