Tissue coagulation method and device using inert gas
First Claim
1. An electrosurgical apparatus for coagulating tissue, comprising:
- a first tube having a proximal end and a distal end, the proximal end configured to receive pressurized ionizable gas and the distal end configured to deliver ionized gas towards a treatment area;
at least one electrode positioned to selectively ionize the pressurized ionizable gas prior to the pressurized ionizable gas exiting the distal end of the first tube, the electrode adapted to be operatively coupled to an electrical energy source; and
a second tube having proximal and distal ends, the second tube configured to selectively evacuate the ionized gas and dislodged tissue material from the treatment area, wherein the distal end of the first tube extends distally beyond the distal end of the second tube and wherein the distal end of the second tube extends distally beyond a distal end of the at least one electrode,wherein the electrosurgical apparatus is configured for simultaneous use for monopolar ablation and to ionize the ionizable gas while the distal end of the second tube extends distally beyond the distal end of the at least one electrode.
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Accused Products
Abstract
A gas-enhanced electrosurgical method and apparatus for coagulating tissue. The apparatus includes a first tube with a proximal end and a distal end. The proximal end of the first tube is configured to receive pressurized ionizable gas. The distal end of the first tube is configured to deliver ionized gas towards a treatment area. The apparatus also includes at least one electrode positioned to selectively ionize the pressurized ionizable gas before the pressurized ionizable gas exits the distal end of the first tube. The electrode is adapted to operatively couple to an electrical energy source. The apparatus also includes a second tube with proximal and distal ends. The second tube is configured to selectively evacuate the ionized gas and dislodged tissue material from the treatment area.
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Citations
17 Claims
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1. An electrosurgical apparatus for coagulating tissue, comprising:
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a first tube having a proximal end and a distal end, the proximal end configured to receive pressurized ionizable gas and the distal end configured to deliver ionized gas towards a treatment area; at least one electrode positioned to selectively ionize the pressurized ionizable gas prior to the pressurized ionizable gas exiting the distal end of the first tube, the electrode adapted to be operatively coupled to an electrical energy source; and a second tube having proximal and distal ends, the second tube configured to selectively evacuate the ionized gas and dislodged tissue material from the treatment area, wherein the distal end of the first tube extends distally beyond the distal end of the second tube and wherein the distal end of the second tube extends distally beyond a distal end of the at least one electrode, wherein the electrosurgical apparatus is configured for simultaneous use for monopolar ablation and to ionize the ionizable gas while the distal end of the second tube extends distally beyond the distal end of the at least one electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for coagulating tissue, the method including the steps of:
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providing an electrosurgical apparatus, the electrosurgical apparatus including a first tube, at least one electrode positioned to selectively ionize pressurized ionizable gas prior to the pressurized ionizable gas exiting the first tube, and a second tube, wherein a distal end of the first tube extends distally beyond a distal end of the second tube and wherein the distal end of the second tube extends distally beyond a distal end of the at least one electrode; inserting a portion of the electrosurgical apparatus into tissue; activating the first tube with a first electrical potential; activating a second structure with a second electrical potential; delivering gas through the first tube towards the treatment area; removing gas from the treatment area via the second tube; and simultaneously ablating tissue in a monopolar manner and ionizing the pressurized ionizable gas flowing through the electrosurgical apparatus while the distal end of the second tube extends distally beyond the distal end of the at least one electrode. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification