Electrosurgical device and methods
First Claim
1. A method of utilizing a bipolar probe between a vertebral body and a tumor located at least partially within the vertebral body, the method comprising:
- delivering energy to nervous tissue near the tumor using the bipolar probe, the bipolar probe having an active tip including at least two electrodes, the at least two electrodes including at least a tubular outer electrode defining a first lumen having a longitudinal axis and a tubular inner electrode defining a second lumen having a longitudinal axis extending coaxially with the longitudinal axis of the first lumen along at least a portion of the outer electrode; and
cooling the outer electrode and the inner electrode by flowing a coolant within the second lumen of the inner electrode when the energy is being delivered to the nervous tissue to limit charring of tissue surrounding the surface of the at least two electrodes.
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Accused Products
Abstract
An electrosurgical bipolar probe with internal cooling for use in systems and methods for lesioning in bone and other tissue is disclosed. The bipolar probe includes tubular electrodes configured such that the inner surface of the electrodes are cooled, directly or indirectly, while keeping the electrodes electrically isolated. An exemplary disclosed method of using a bipolar probe having an active tip having at least two electrodes for delivering energy includes the steps of: advancing the active tip into a bone tissue; delivering energy substantially between the electrodes in a bipolar manner; and supplying cooling fluid to the active tip for internal cooling of the electrodes. Some versions of the method further include the steps of monitoring the temperature of tissue to which the energy is being delivered; and controlling the delivery of energy in suspense to the temperature of the tissue.
23 Citations
20 Claims
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1. A method of utilizing a bipolar probe between a vertebral body and a tumor located at least partially within the vertebral body, the method comprising:
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delivering energy to nervous tissue near the tumor using the bipolar probe, the bipolar probe having an active tip including at least two electrodes, the at least two electrodes including at least a tubular outer electrode defining a first lumen having a longitudinal axis and a tubular inner electrode defining a second lumen having a longitudinal axis extending coaxially with the longitudinal axis of the first lumen along at least a portion of the outer electrode; and cooling the outer electrode and the inner electrode by flowing a coolant within the second lumen of the inner electrode when the energy is being delivered to the nervous tissue to limit charring of tissue surrounding the surface of the at least two electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An ablation system for delivering energy to nervous tissue near a tumor located at least partially within a vertebral body, the ablation system comprising:
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a generator configured to supply power to the ablation system; a bipolar probe configured to deliver the energy to the nervous tissue near the tumor, the bipolar probe having an active tip including at least two electrodes, the at least two electrodes including at least a tubular outer electrode defining a first lumen having a longitudinal axis and a tubular inner electrode defining a second lumen having a longitudinal axis extending coaxially with the longitudinal axis of the first lumen along at least a portion of the outer electrode; and a coolant supply configured to cool the outer electrode and the inner electrode by flowing a coolant within the second lumen of the inner electrode when the energy is being delivered to the nervous tissue to limit charring of tissue surrounding the surface of the at least two electrodes. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification