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US 8,574,187 B2Granted
System and method of an electrosurgical controller with output RF energy control
AssigneeArthroCare Corporation
InventorDuane W. Marion
Life of this patent
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Abstract
An electrosurgical controller with output RF energy control. At least some of the illustrative embodiments are electrosurgical controllers configured to change a first output voltage on the first active terminal relative to the first return terminal by selective control of a number of turns of the primary winding of a transformer used to create the output voltage.
Claims9
An electrosurgical controller comprising:
- a wand connector disposed on an outer surface of the electrosurgical controller, the wand connector configured to couple to a connector of an electrosurgical wand, and the wand connector comprising a plurality of electrical pins;
- a voltage generator comprising:
- an alternating current (AC) to direct current (DC) (AC-to-DC) conversion circuit;
- a primary winding of a transformer coupled to the AC-to-DC conversion circuit;
- and
- a secondary winding of the transformer, the secondary winding defines a first active terminal coupled to a first electrical pin of the wand connector and a second active terminal coupled to a second electrical pin of the wand connector;
- the electrosurgical controller is configured to simultaneously provide radio frequency (RF) energy having a first voltage to the first electrical pin and RF energy having a second voltage to the second electrical pin, wherein the first voltage is higher than the second voltage.
4 more elements
Dependencies are inferred from the claim text.