Electrosurgical system
First Claim
Patent Images
1. An electrosurgical system comprising:
- an electrosurgical generator arranged to output electrosurgical energy; and
a bipolar electrosurgical tool removably coupled to the electrosurgical generator, the tool comprising;
a handle comprising;
a stationary handle; and
an actuation handle movably coupled to the stationary handle;
a rotatable elongate shaft extending distally from the handle, the elongate shaft having a proximal end and a distal end defining a central longitudinal axis therebetween;
a first jaw and a second jaw pivotably connected and positioned at the distal end of the elongate shaft, the first jaw having an inner surface, an outer surface, and at least one electrode disposed on the inner surface and the second jaw having an inner surface, an outer surface, and at least one electrode disposed on the inner surface, the first and second jaws actuatable by movement of the actuation handle from an open configuration in which the inner surface of the first jaw is spaced apart from the inner surface of the second jaw to a closed configuration in which the inner surface of the first jaw is proximate the inner surface of the second jaw and arranged to contact tissue and apply the electrosurgical energy to the tissue,wherein the electrosurgical generator supplies electrosurgical energy from the electrosurgical generator through the at least one electrode disposed on the inner surface of the first jaw of a bipolar electrosurgical tool and the at least one electrode disposed on the inner surface of the second jaw of the bipolar electrosurgical tool, determines a first phase angle to identify a tissue type of the tissue between the inner surfaces of the first and second jaws and a predetermined phase angle based on the determined first phase angle, monitors a phase angle of the supplied electrosurgical energy, and ceases the supply of electrosurgical energy from the electrosurgical generator when the monitored phase angle reaches the predetermined phase angle indicating fusion of tissue between the inner surfaces of the first and second jaws.
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Abstract
An electrosurgical system can include an electrosurgical generator, a feedback circuit or controller, and an electrosurgical tool. The feedback circuit can provide an electrosurgery endpoint by determining the phase end point of a tissue to be treated. The electrosurgical system can include more than one electrosurgical tool for different electrosurgical operations and can include a variety of user interface features and audio/visual performance indicators. The electrosurgical system can also power conventional bipolar electrosurgical tools and direct current surgical appliances.
1101 Citations
25 Claims
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1. An electrosurgical system comprising:
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an electrosurgical generator arranged to output electrosurgical energy; and a bipolar electrosurgical tool removably coupled to the electrosurgical generator, the tool comprising; a handle comprising; a stationary handle; and an actuation handle movably coupled to the stationary handle; a rotatable elongate shaft extending distally from the handle, the elongate shaft having a proximal end and a distal end defining a central longitudinal axis therebetween; a first jaw and a second jaw pivotably connected and positioned at the distal end of the elongate shaft, the first jaw having an inner surface, an outer surface, and at least one electrode disposed on the inner surface and the second jaw having an inner surface, an outer surface, and at least one electrode disposed on the inner surface, the first and second jaws actuatable by movement of the actuation handle from an open configuration in which the inner surface of the first jaw is spaced apart from the inner surface of the second jaw to a closed configuration in which the inner surface of the first jaw is proximate the inner surface of the second jaw and arranged to contact tissue and apply the electrosurgical energy to the tissue, wherein the electrosurgical generator supplies electrosurgical energy from the electrosurgical generator through the at least one electrode disposed on the inner surface of the first jaw of a bipolar electrosurgical tool and the at least one electrode disposed on the inner surface of the second jaw of the bipolar electrosurgical tool, determines a first phase angle to identify a tissue type of the tissue between the inner surfaces of the first and second jaws and a predetermined phase angle based on the determined first phase angle, monitors a phase angle of the supplied electrosurgical energy, and ceases the supply of electrosurgical energy from the electrosurgical generator when the monitored phase angle reaches the predetermined phase angle indicating fusion of tissue between the inner surfaces of the first and second jaws. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electrosurgical system comprising:
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an electrosurgical generator arranged to output electrosurgical energy; and a bipolar electrosurgical tool removably coupled to the electrosurgical generator, the tool comprising a first jaw and a second jaw pivotably connected to each other, the first jaw having an inner surface, an outer surface, and at least one electrode disposed on the inner surface and the second jaw having an inner surface, an outer surface, and at least one electrode disposed on the inner surface, the first and second jaws actuatable from an open configuration in which the inner surface of the first jaw is spaced apart from the inner surface of the second jaw to a closed configuration in which the inner surface of the first jaw is proximate the inner surface of the second jaw and arranged to contact tissue and apply the electrosurgical energy to the tissue, wherein the electrosurgical generator supplies electrosurgical energy from the electrosurgical generator through the at least one electrode disposed on the inner surface of the first jaw of the bipolar electrosurgical tool and the at least one electrode disposed on the inner surface of the second jaw of the bipolar electrosurgical tool to fuse tissue between the at least one electrode of the first jaw and the at least one electrode of the second jaw, monitors a phase angle of the supplied electrosurgical energy, and ceases the supply of electrosurgical energy from the electrosurgical generator when a derivative of the monitored phase angle reaches a predetermined derivative phase angle end point indicating fusion of tissue between the first and second jaws. - View Dependent Claims (17, 18, 19, 20, 21)
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22. An electrosurgical system comprising:
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an electrosurgical generator arranged to output electrosurgical energy; and a bipolar electrosurgical tool removably coupled to the electrosurgical generator, the tool comprising a first jaw and a second jaw pivotably connected to each other, the first jaw having an inner surface, an outer surface, and an electrode disposed on the inner surface and the second jaw having an inner surface, an outer surface, and an electrode disposed on the inner surface, the first and second jaws actuatable from an open configuration in which the inner surface of the first jaw is spaced apart from the inner surface of the second jaw to a closed configuration in which the inner surface of the first jaw is proximate the inner surface of the second jaw and arranged to contact tissue and apply the electrosurgical energy to the tissue, wherein the electrosurgical generator supplies electrosurgical energy from the electrosurgical generator through the electrode disposed on the inner surface of the first jaw of the bipolar electrosurgical tool and the electrode disposed on the inner surface of the second jaw of the bipolar electrosurgical tool to fuse tissue therebetween, monitors a phase angle of the supplied electrosurgical energy and determines when fusion of tissue between the inner surfaces of the first and second jaws has occurred when a derivative of the monitored phase angle reaches a predetermined derivative phase angle end point indicating fusion of tissue between the inner surfaces of the first and second jaws. - View Dependent Claims (23, 24, 25)
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Specification