Surgical generator for ultrasonic and electrosurgical devices
First Claim
1. A surgical generator for use with at least one surgical instrument, comprising:
- a power supply;
an output stage;
an ultrasonic generator module to provide at the output stage an ultrasonic drive signal for driving an ultrasonic surgical device; and
an electrosurgical generator module to provide at the output stage an electrosurgical drive signal for driving an electrosurgical device, wherein at least one of providing the ultrasonic drive signal or providing the electrosurgical drive signal comprises;
recalling a waveform sample from a look-up table (LUT);
modifying the waveform sample to generate a modified waveform based on voltage and current feedback information to pre-distort the waveform sample on a dynamic ongoing basis;
indexing each stored voltage and current feedback data pair based on a corresponding LUT sample that was output when the voltage and current feedback data pair was acquired;
synchronizing the LUT sample and the voltage and current feedback data pair to correct timing and stability of the pre-distorted waveform sample; and
providing the modified waveform to the output stage.
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Accused Products
Abstract
A surgical generator is disclosed including an ultrasonic generator module to provide at an ultrasonic drive signal for driving an ultrasonic surgical device and an electrosurgical generator module to provice an electrosurgical drive signal for driving an electrosurgical device. At least one of providing the ultrasonic drive signal or providing the electrosurgical drive signal includes recalling a waveform sample from a look-up table (LUT), modifying the waveform sample to generate a modified waveform based on voltage and current feedback information to pre-distort the waveform sample on a dynamic ongoing basis, indexing each stored voltage and current feedback data pair based on a corresponding LUT sample that was output when the voltage and current feedback data pair was acquired, synchronizing the LUT sample and the voltage and current feedback data pair to correct timing and stability of the pre-distorted waveform sample, and providing the modified waveform to an output stage.
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Citations
6 Claims
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1. A surgical generator for use with at least one surgical instrument, comprising:
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a power supply; an output stage; an ultrasonic generator module to provide at the output stage an ultrasonic drive signal for driving an ultrasonic surgical device; and an electrosurgical generator module to provide at the output stage an electrosurgical drive signal for driving an electrosurgical device, wherein at least one of providing the ultrasonic drive signal or providing the electrosurgical drive signal comprises; recalling a waveform sample from a look-up table (LUT); modifying the waveform sample to generate a modified waveform based on voltage and current feedback information to pre-distort the waveform sample on a dynamic ongoing basis; indexing each stored voltage and current feedback data pair based on a corresponding LUT sample that was output when the voltage and current feedback data pair was acquired; synchronizing the LUT sample and the voltage and current feedback data pair to correct timing and stability of the pre-distorted waveform sample; and providing the modified waveform to the output stage.
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2. A surgical generator for use with at least one surgical instrument, the surgical generator comprising:
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an output stage; and at least one programmable logic device to control the output stage, wherein the at least one programmable logic device is programmed to; cause the output stage to provide an ultrasonic drive signal to drive an ultrasonic surgical device; and cause the output stage to provide an electrosurgical drive signal to drive an electrosurgical device, wherein causing the output stage to provide at least one of the ultrasonic drive signal or the electrosurgical drive signal comprises; recalling a waveform sample from a look-up table (LUT); modifying the waveform sample to generate a modified waveform based on voltage and current feedback information to pre-distort the waveform sample on a dynamic ongoing basis; indexing each stored voltage and current feedback data pair based on a corresponding LUT sample that was output when the voltage and current feedback data pair was acquired; synchronizing the LUT sample and the voltage and current feedback data pair to correct timing and stability of the pre-distorted waveform sample; and providing the modified waveform to the output stage. - View Dependent Claims (3, 4, 5, 6)
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Specification