CARDIAC ABLATION AND ELECTRICAL INTERFACE SYSTEM AND INSTRUMENT
First Claim
1. A system for ablating tissue and electrically interfacing with a heart, the system comprising:
- an electrosurgical instrument including;
a shaft defining a proximal section and a distal section,a first electrode provided at the distal section,a second electrode provided at the distal section and electrically isolated from the first electrode,a non-conductive handle coupled to the proximal section of the shaft;
a first energy source electrically connected to the electrosurgical instrument; and
a controller controlling delivery of energy from the energy source and monitoring electrical signals from the electrodes, the controller programmed to operate in;
a monopolar mode in which the first and second electrodes are electrically uncoupled and energy from the energy source is delivered to the first electrode in performing an ablation procedure,a bipolar mode in which the electrodes are electrically coupled and serve as opposite polarity poles in at least one of applying energy to, and detecting electrical signals at, a tissue target site in performing a non-ablation procedure.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for ablating tissue and electrically interfacing with a heart including an electrosurgical instrument, an energy source, and a controller. The instrument includes a shaft maintaining first and second electrodes at a distal section. The electrodes are electrically isolated from one another. The controller controls delivery of energy from the energy source, and monitors electrical signals at the electrodes. The controller is programmed to operate in a monopolar mode and a bipolar mode. In the monopolar mode, the first and second electrodes are electrically uncoupled, and energy from the energy source is delivered to the first electrode in performing an ablation procedure. In the bipolar mode, first and second electrodes are electrically coupled and serve as opposite polarity poles to apply energy to a tissue target site, detect electrical signals at a tissue target site, or both.
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Citations
56 Claims
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1. A system for ablating tissue and electrically interfacing with a heart, the system comprising:
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an electrosurgical instrument including; a shaft defining a proximal section and a distal section, a first electrode provided at the distal section, a second electrode provided at the distal section and electrically isolated from the first electrode, a non-conductive handle coupled to the proximal section of the shaft; a first energy source electrically connected to the electrosurgical instrument; and a controller controlling delivery of energy from the energy source and monitoring electrical signals from the electrodes, the controller programmed to operate in; a monopolar mode in which the first and second electrodes are electrically uncoupled and energy from the energy source is delivered to the first electrode in performing an ablation procedure, a bipolar mode in which the electrodes are electrically coupled and serve as opposite polarity poles in at least one of applying energy to, and detecting electrical signals at, a tissue target site in performing a non-ablation procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An electrosurgical instrument for use in ablating tissue and electrically interfacing with a heart, the instrument comprising:
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a shaft defining a proximal section and a distal section; a first electrode provided at the distal section; a second electrode provided at the distal section and electrically insulated from the first electrode; wherein the first electrode has a characteristic different from the second electrode selected from the group consisting of size, shape, and porosity; and a non-conductive handle coupled to the proximal section of the shaft. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method for treating a patient'"'"'s heart, the method comprising:
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providing a surgical instrument including; a shaft defining a proximal section and a distal section, a first electrode provided at the distal section, a second electrode provided at the distal section and electrically isolated from the first electrode, a non-conductive handle coupled to the proximal section of the shaft; performing a non-ablation procedure including; contacting the first and second electrodes against cardiac tissue, operating the first and second electrode as opposite polarity poles, energizing the first and the second electrodes by at least one of an energy from an energy source and a depolarization wave propagating across the contacted cardiac tissue; and performing an ablation procedure including; contacting the first electrode against the cardiac tissue, operating the first electrode as a monopolar pole, delivering energy to only the first electrode from an energy source to create an ablation lesion to isolate an area of cardiac tissue. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification