Devices and methods for controlling movement of an electrosurgical electrode
First Claim
1. A method for controlling the movement of an electrosurgical electrode of an electrosurgical device within a target tissue comprising:
- inserting the electrosurgical electrode into the target tissue;
moving the electrode to a radially extended, outwardly bowed, operational state;
initiating the delivery of energy to an electrosurgical electrode to cut a target tissue;
rotating the electrosurgical electrode;
monitoring an electrical characteristic associated with the electrosurgical electrode while rotating the electrosurgical electrode; and
adjusting the speed of rotation of the electrosurgical electrode based on the monitoring step to maintain an effective arc.
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Accused Products
Abstract
An electrosurgical electrode assembly having a cutting device including a catheter with a proximal and distal end, and an electrode carried on the distal end of the catheter. A controller is connected to the cutting device. A data acquisition system is connected to the controller and is capable of monitoring voltage and current output. A microprocessor may also be connected to the data acquisition system for processing voltage and current data from the data acquisition system. A generator is also connected to the data acquisition system. The controller initiates movement of the electrode upon arc initiation at the electrode. Methods of using the devices herein are also disclosed.
38 Citations
23 Claims
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1. A method for controlling the movement of an electrosurgical electrode of an electrosurgical device within a target tissue comprising:
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inserting the electrosurgical electrode into the target tissue;
moving the electrode to a radially extended, outwardly bowed, operational state;
initiating the delivery of energy to an electrosurgical electrode to cut a target tissue;
rotating the electrosurgical electrode;
monitoring an electrical characteristic associated with the electrosurgical electrode while rotating the electrosurgical electrode; and
adjusting the speed of rotation of the electrosurgical electrode based on the monitoring step to maintain an effective arc. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for controlling the operation of a percutaneously-placed electrosurgical electrode of an electrosurgical device within a target tissue comprising:
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inserting the electrosurgical electrode into the target tissue;
moving the electrode to a radially extended, outwardly bowed, operational state;
delivering energy to a percutaneously-placed electrosurgical electrode to create an arc thereat while rotating said electrode to cut a target tissue;
monitoring an electrical characteristic associated with the electrosurgical electrode while rotating the electrosurgical electrode; and
adjusting the speed of rotation of the electrosurgical electrode based upon the monitoring step to maintain an effective arc.
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Specification