ELECTROSURGICAL METHODS AND SYSTEMS
First Claim
1. An electrosurgical controller comprising:
- a processor;
a memory coupled to the processor;
a voltage generator operatively coupled to the processor, the voltage generator comprising an active terminal;
a wand connector configured to couple to a connector of an electrosurgical wand;
a peristaltic pump comprising a rotor coupled to an electric motor, the electric motor operatively coupled to the processor;
wherein the memory stores a program that, when executed by the processor, causes the processor to;
command the voltage generator to deliver output energy to an active electrode of an electrosurgical wand, the output energy within a predetermined first energy range, and during periods of time when output energy is being delivered within the first energy range the program causes the processor to;
control flow of fluid drawn into an aperture of the electrosurgical wand at a first flow rate by control of the peristaltic pump;
detect when the active electrode is in operational relationship with tissue; and
increase speed of the peristaltic pump responsive to detection that the active electrode is in operational relationship with tissue; and
command the voltage generator to deliver output energy to the active electrode within a predetermined second energy range, and during periods of time when output energy is being delivered within the second energy range the program causes the processor to;
control flow of fluid drawn into the aperture of the electrosurgical wand at a second flow rate by control of the peristaltic pump;
detect when the active electrode is in operational relationship with tissue; and
decrease speed of the peristaltic pump responsive to detection that the active electrode is in operational relationship with tissue.
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Accused Products
Abstract
Electrosurgical methods and systems. At least some of the illustrative embodiments are methods including maintaining plasma proximate to an active electrode in a first energy range, and a second energy range. During periods when plasma is proximate to the active electrode, the illustrative method may include controlling flow of fluid drawn into an aperture of an electrosurgical wand, and in some situations increasing fluid flow drawing into the aperture responsive to the active electrode being in operational relationship with tissue, and in other cases decreasing fluid flow drawing into the aperture responsive to the active electrode being in operational relationship with tissue. Further, during periods when plasma is proximate to the active electrode, the illustrative method may include providing output energy at a default energy setpoint, and then providing output energy at a second energy setpoint.
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Citations
18 Claims
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1. An electrosurgical controller comprising:
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a processor; a memory coupled to the processor; a voltage generator operatively coupled to the processor, the voltage generator comprising an active terminal; a wand connector configured to couple to a connector of an electrosurgical wand; a peristaltic pump comprising a rotor coupled to an electric motor, the electric motor operatively coupled to the processor; wherein the memory stores a program that, when executed by the processor, causes the processor to; command the voltage generator to deliver output energy to an active electrode of an electrosurgical wand, the output energy within a predetermined first energy range, and during periods of time when output energy is being delivered within the first energy range the program causes the processor to; control flow of fluid drawn into an aperture of the electrosurgical wand at a first flow rate by control of the peristaltic pump; detect when the active electrode is in operational relationship with tissue; and increase speed of the peristaltic pump responsive to detection that the active electrode is in operational relationship with tissue; and command the voltage generator to deliver output energy to the active electrode within a predetermined second energy range, and during periods of time when output energy is being delivered within the second energy range the program causes the processor to; control flow of fluid drawn into the aperture of the electrosurgical wand at a second flow rate by control of the peristaltic pump; detect when the active electrode is in operational relationship with tissue; and decrease speed of the peristaltic pump responsive to detection that the active electrode is in operational relationship with tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electrosurgical controller comprising:
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a processor; a memory coupled to the processor; a voltage generator operatively coupled to the processor, the voltage generator comprising an active terminal; a peristaltic pump comprising a rotor coupled to an electric motor, the electric motor operatively coupled to the processor; wherein the memory storing a program that, when executed by the processor, causes the processor to; command the voltage generator to provide output energy to the active terminal at a first default energy setpoint, the first default energy setpoint within a first energy range; and
thencommand the voltage generator to provide output energy to the active terminal at a second energy setpoint, the second energy setpoint different than the first default energy setpoint, the second energy setpoint within the first energy range, and transitioning to the second energy setpoint responsive to the electrosurgical controller receiving a command. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification