System and method for hybrid polarized/non-polarized plasma beam coagulation for variable tissue effects
AssigneeCovidien LP
InventorsDANIEL FRIEDRICHS, JOE D. SARTOR
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Abstract
The present disclosure provides a plasma system including an electrosurgical generator; an ionizable media source; and a plasma instrument. The plasma instrument includes a housing having a lumen defined therein terminating in an opening at a distal end thereof, the lumen being in fluid communication with an ionizable media source and a pair of electrodes coupled to the electrosurgical generator. The plasma system also includes a return electrode pad configured to couple to a patient; and a polarization controller electrically coupled to the return electrode, the polarization controller configured to adjust conductive coupling of the return electrode pad to the electrosurgical generator.
Claims20
A plasma system comprising:
- an electrosurgical generator;
- an ionizable media source;
- a plasma instrument comprising:
- a housing having a lumen defined therein terminating in an opening at a distal end thereof, the lumen being in fluid communication with an ionizable media source;
- and
- a pair of electrodes coupled to the electrosurgical generator;
- a return electrode pad configured to electrically couple to a patient;
- and
- a polarization controller electrically coupled to the return electrode pad, the polarization controller configured to adjust conductive coupling of the return electrode pad to the electrosurgical generator.
A plasma system comprising:
- an electrosurgical generator;
- an ionizable media source;
- a plasma instrument comprising:
- a housing having a lumen defined therein terminating in an opening at a distal end thereof, the lumen being in fluid communication with an ionizable media source;
- and
- a pair of electrodes coupled to the electrosurgical generator;
- a return electrode pad configured to couple to a patient;
- and
- a polarization controller electrically coupled to the return electrode, the polarization controller comprising a variable resistance controllable by at least one of the electrosurgical generator or the plasma instrument.
A method comprising:
- supplying ionizable media to a plasma instrument;
- igniting the ionizable media at the plasma instrument by energizing a pair of electrodes disposed within the plasma instrument to form a plasma effluent;
- and
- adjusting variable resistance of a polarization controller coupled to a return electrode pad to control a degree of polarization of the plasma effluent.
Dependencies are inferred from the claim text.