Electrosurgical generator control apparatus
AssigneeCimarron Instruments, Inc.
InventorsWarren L. Childs, William T. Cronenwett
Life of this patent
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Abstract
A control unit for use with a hand-held probe and an electrosurgical generator is disclosed to include a power input transformer which isolates the primary power supply from two electrically isolated circuits within the control unit. A first one of the electrical circuits receives a channel select signal from a hand-held probe connected thereto and, in response thereto, actuates either a first channel circuit or a second channel circuit within the second circuit. Each of the first and second channel circuits includes an alternating current actuated relay for electromagnetically moving a switch element therein in response to the channel select circuit so that either a first or a second control signal is provided to the electrosurgical generator.
Claims21
An apparatus for controlling an electronic surgical instrument which includes an alternating current signal generator means and a workpiece engaging means, said apparatus comprising:
- first channel circuit means for providing a first control signal to said alternating current signal generator means;
- second channel circuit means for providing a second control signal to said alternating current signal generator means;
- means for providing said first channel circuit means and said second channel circuit means with an alternating current to;
- and
- channel select means for selectably actuating either said first channel circuit means or said second channel circuit means so that when said first channel circuit means is actuated, the first control signal is provided to said alternating current signal generator means to activate the generation thereby of a first alternating current signal surgically usable by said workpiece engaging means and so that when said second channel circuit means is actuated, the second control signal is provided to said alternating current signal generator means to activate the generation thereby of a second alterating current signal surgically usable by said workpiece engaging means.
An apparatus for controlling an electronic surgical instrument which includes an alternating current signal generator means and a workpiece engaging means, said apparatus comprising:
- first channel circuit means for providing a first control signal to said alternating current signal generator means;
- second channel circuit means for providing a second control signal to said alternating current signal generator means;
- means for energizing said first channel circuit means and said second channel circuit means with an alternating current, said means for energizing including:
- a first electrical winding having an input means for connecting said first electrical winding to a source of alternating current;
- a second electrical winding;
- a third electrical winding associated with said first channel circuit means and said second channel circuit means;
- and
- core means for inductively coupling said first electrical winding with said second and third electrical windings;
- and
- channel select means, associated with said second electrical winding, for selectably actuating either said first channel circuit means or said second channel circuit means so that when said first channel circuit means is actuated, the first control signal is provided to said alternating current signal generator means to activate the generation thereby of a first alternating current signal surgically usable by said workpiece engaging means and so that when said second channel circuit means is actuated, the second control signal is provided to said alternating current signal generator means to activate the generation thereby of a second alternating current signal surgically usable by said workpiece engaging means.
An apparatus for controlling an electronic surgical instrument which includes an alternating current signal generator means and a workpiece engaging means, said apparatus comprising:
- power input means, including:
- a first electrical winding having an input means for connecting said first electrical winding directly to a source of alternating current;
- a second electrical winding;
- a third electrical winding;
- and
- core means for inductively coupling said first electrical winding with said second and third electrical windings;
- channel circuit means for providing a control signal to said alternating current signal generator means, said channel circuit means including a relay having a coil associated with said third electrical winding;
- and
- channel select means, associated with said second electrical winding, for selectably actuating said channel circuit means to provide the control signal to said alternating current signal generator means.
An apparatus for controlling an electronic surgical instrument which includes an alternating current signal generator means and a workpiece engaging means, said apparatus comprising:
- power input means, including:
- a first electrical winding having an input means for connecting said first electrical winding to a source of alternating current;
- a second electrical winding;
- a third electrical winding;
- and
- core means for inductively coupling said first electrical winding with said second and third electrical windings;
- channel circuit means for providing a control signal to said alternating current signal generator means, said channel circuit means including a relay having a coil associated with said third electrical winding;
- and
- channel select means, associated with said second electrical winding, for selectably actuating said channel circuit means to provide the control signal to said alternating current signal generator means, said channel select means including:
- first input means for connecting said second electrical winding to said channel select means;
- second input means for receiving an alternating current signal generated by said alternating current signal generator means;
- third input means for receiving a channel select signal from said workpiece engaging means;
- workpiece signal output means associated with said second input means for transferring the alternating current signal to said workpiece engaging means;
- and
- coupling means for connecting said first input means and said third input means to said channel circuit means.
Dependencies are inferred from the claim text.