Electrosurgical unit and system
AssigneeMedtronic Advanced Energy LLC
InventorsJohn Gearheart, David Hubelbank, Jesse Smith, Vini Podany
Life of this patent
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Abstract
Systems, such as an electrosurgical unit, and method for use with an active electrode and a plurality of return electrodes are disclosure. An electrosurgical treatment is provided to tissue via the active electrode at a treatment site and a first return electrode of the plurality of return electrodes at the treatment site. An impedance measurement is received or determined of an impedance in the tissue between the active electrode at the treatment site and a second return electrode of the plurality of return electrodes at a site remote from the treatment site.
Claims20
A non-transitory computer readable medium to store computer executable instructions to control a processor to:
- provide an electrosurgical treatment to tissue via an active electrode at a treatment site and a first return electrode of a plurality of return electrodes at the treatment site, the active electrode and the first return electrode in bipolar operation at the treatment site;
- determine an impedance measurement of an impedance in the tissue between the active electrode at the treatment site and a second return electrode of the plurality of return electrodes at a site remote from the treatment site;
- and
- take an action in response to a plateau detected in the determined impedance measurement.
An electrosurgical unit for use with an active electrode and a plurality of return electrodes, the electrosurgical unit comprising:
- a memory to store a set of instructions;
- and
- a processor to execute the set of instructions to:
- provide an electrosurgical treatment to tissue via the active electrode at a treatment site and a first return electrode of the plurality of return electrodes at the treatment site the active electrode and the first return electrode in bipolar operation at the treatment site;
- determine an impedance measurement of an impedance in the tissue between the active electrode at the treatment site and a second return electrode of the plurality of return electrodes at a site remote from the treatment site;
- and
- take an action in response to a plateau detected in the determined impedance measurement.
An electrosurgical unit configured to provide a treatment with a bipolar electrosurgical device at a treatment site, the bipolar electrosurgical device having an active electrode and a first return electrode at the treatment site, and a second return electrode at a remote site, comprising:
- an RF circuit operably coupled to an output having an active electrode connection and a first return connection, the active electrode connection and the first return connection configured to be coupled to the bipolar electrosurgical device, the RF circuit configured to provide a bipolar operation of the bipolar electrosurgical device via the active electrode connection and the first return connection with a treatment signal;
- a detection circuit configured to be operably coupled to the active electrode connection and the first return electrode connection, the detection circuit further configure to be operably coupled to a second return electrode connection, the second return electrode connection configured to be coupled to a second return electrode at a remote site;
- and
- a processor operably coupled to the detection circuit and configured to detect a potential difference from the treatment signal between the active electrode connection and the second return electrode connection and a current from the treatment signal in the second return electrode connection, to determine an impedance measurement based on the potential difference and the current during bipolar operation, and to take an action in response to a plateau detected in the determined impedance measurement.
Dependencies are inferred from the claim text.