Device and method for ablating tissue
First Claim
1. A method of sealing body tissue comprising:
- engaging body tissue between first and second ablating members of an electrosurgical device further including an elongate member having a distal end, the first and second ablating members coupled to the distal end and at least one of the first and second ablating members comprises a fluid delivery channel having at least one fluid exit opening to permit exit of a fluid from the fluid delivery chamber;
wherein the first ablating member engages a first surface of the body tissue and the second ablating member engages a second surface of the body tissue; and
providing radiofrequency energy of opposite polarity to the first and second ablating members such that the body tissue residing between the first and second ablating members is sealed at least one of at the cellular level and the vascular level.
2 Assignments
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Accused Products
Abstract
An electrosurgery medical device is enhanced with unique solution-assistance, and comprises, in combination, co-operating device jaws including jaw portions for manipulating tissue, and a plurality of solution infusion openings defined and spaced along each of the jaw portions, for receiving electrolytic solution and infusing the solution onto and into tissue to be manipulated, along said jaw portions. As preferred, the device further comprises at least one, and most preferably, many, longitudinal groove(s) along at least one and most preferably, both, of the jaw portions, with the solution infusion openings located in the groove or grooves. The solution is energized with RF energy and contributes to the functions and beneficial effects of the instrument. The solution exits the openings in the grooves at sufficient flow rates to separate substantially all the operative surfaces of the device from tissue, thereby substantially completely preventing adherence between the operative surfaces and tissue. The solution is further energized to a range of energy densities such that tissues to be affected are sealed against flow of blood, lymphatic fluids, air, and other bodily fluids and gases.
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Citations
32 Claims
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1. A method of sealing body tissue comprising:
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engaging body tissue between first and second ablating members of an electrosurgical device further including an elongate member having a distal end, the first and second ablating members coupled to the distal end and at least one of the first and second ablating members comprises a fluid delivery channel having at least one fluid exit opening to permit exit of a fluid from the fluid delivery chamber; wherein the first ablating member engages a first surface of the body tissue and the second ablating member engages a second surface of the body tissue; and providing radiofrequency energy of opposite polarity to the first and second ablating members such that the body tissue residing between the first and second ablating members is sealed at least one of at the cellular level and the vascular level. - 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, 25, 26, 27, 28, 29, 30, 31)
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32. A method of sealing body tissue comprising:
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engaging body tissue between first and second ablating members of an ablation device further including an elongate member having a distal end, the first and second ablating members coupled to the distal end; wherein the first ablating member engages a first surface of the body tissue and the second ablating member engages a second surface of the body tissue; compressing the body tissue residing between the first and second ablating members; supplying a fluid to at least a portion of the body tissue; and providing radiofrequency energy of opposite polarity to the first and second ablating members such that the body tissue residing between the first and second ablating members is sealed by the energized, supplied fluid.
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Specification