Circuit for controlling arc energy from an electrosurgical generator
First Claim
1. A circuit, comprising:
- a generating unit for generating at least a current; and
a diode-resistor block having a pair of electrical components configured to divide the current into at least two paths, one path of the at least two paths including one of a resistor and a potentiometer in series with the pair of electrical components, wherein arc energy variations produced by the generating unit are controlled by the diode-resistor block.
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Accused Products
Abstract
A circuit is disclosed which minimizes the amount of tissue vaporized during a first half (positive half cycle) of an electrosurgical current cycle and minimizes the amount of current applied to tissue during a second half (negative half cycle) of the electrosurgical current cycle to control thermal spread. The circuit is preferably provided within an electrosurgical generator which is capable of controlling the amount of energy delivered to a patient during electrosurgery on a per arc basis. Also, a method of controlling arc energy via the circuit is disclosed. The method includes the steps of generating a current via a generating unit and dividing the current into two paths via a diode-resistor block, one path including one of a resistor and a potentiometer in series with a pair of electrical components, wherein arc energy variations produced by the generating unit are controlled by the diode-resistor block.
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Citations
20 Claims
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1. A circuit, comprising:
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a generating unit for generating at least a current; and a diode-resistor block having a pair of electrical components configured to divide the current into at least two paths, one path of the at least two paths including one of a resistor and a potentiometer in series with the pair of electrical components, wherein arc energy variations produced by the generating unit are controlled by the diode-resistor block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling arc energy via a circuit, the method comprising the steps of:
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generating at least a current via a generating unit; and dividing the current into at least two paths via a diode-resistor block having a pair of electrical components, one path of the at least two paths including one of a resistor and a potentiometer in series with the pair of electrical components, wherein arc energy variations produced by the generating unit are controlled by the diode-resistor block. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A circuit, comprising:
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a generating unit for generating at least a current; and a diode-resistor block having a pair of diodes biased opposite each other and configured to divide the current into at least two paths, one path of the at least two paths including one of a resistor and a potentiometer in series with the pair of diodes; wherein arc energy variations produced by the generating unit are controlled by the diode-resistor block and maintained at a predetermined minimum voltage value. - View Dependent Claims (20)
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Specification