Electrosurgical system
First Claim
1. An electrosurgical system comprising:
- an electrosurgical instrument arranged to grasp and fuse tissue using radio frequency (RF) energy; and
an electrosurgical generator connectable to the electrosurgical instrument and configured to supply the RF energy through the electrosurgical instrument, the generator comprising;
an RF amplifier to supply RF energy through the electrosurgical instrument; and
a controller arranged to monitor a phase angle of the supplied RF energy, the controller being configured to signal the RF amplifier to adjust voltage of the supplied RF energy when the monitored phase angle is equal to a predefined phase value, wherein the predefined phase value is zero degrees.
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Accused Products
Abstract
An electrosurgical generator arranged to supply radio frequency (RF) energy to fuse tissue is provided. The generator is arranged to supply RF energy through a removably coupled electrosurgical instrument to fuse tissue grasped by the instrument. The generator monitors a phase angle of the supplied RF energy and adjusts or terminates the supplied RF energy based on the monitored phase angle in comparison to predetermined thresholds and conditions to optimally fuse the tissue. The electrosurgical instrument conducts radio frequency energy to fuse tissue captured between the jaws and a blade to mechanically cut tissue between the jaws. A conductive post positioned on the jaw adjacent to the blade.
1128 Citations
18 Claims
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1. An electrosurgical system comprising:
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an electrosurgical instrument arranged to grasp and fuse tissue using radio frequency (RF) energy; and an electrosurgical generator connectable to the electrosurgical instrument and configured to supply the RF energy through the electrosurgical instrument, the generator comprising; an RF amplifier to supply RF energy through the electrosurgical instrument; and a controller arranged to monitor a phase angle of the supplied RF energy, the controller being configured to signal the RF amplifier to adjust voltage of the supplied RF energy when the monitored phase angle is equal to a predefined phase value, wherein the predefined phase value is zero degrees. - View Dependent Claims (2, 3, 4, 5)
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6. An electrosurgical system comprising:
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an electrosurgical instrument arranged to grasp and fuse tissue using radio frequency (RF) energy; and an electrosurgical generator connectable to the electrosurgical instrument and configured to supply the RF energy through the electrosurgical instrument, the generator comprising; an RF amplifier to supply RF energy through the electrosurgical instrument; and a controller arranged to monitor a phase angle of the supplied RF energy, the controller configured to identify a first voltage of the supplied RF energy when the monitored phase angle starts decreasing. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification