DEVICE AND METHOD FOR ABLATING TISSUE
First Claim
1. A method of ablating tissue, comprising:
- positioning a medical device including a deformable and helical distal portion in contact with a continuous tissue region, the helical distal portion including a plurality of turns each having a diameter, the diameter of each turn being greater than the diameter of the next distal turn;
compressing the helical distal portion against the continuous tissue region, deforming the distal portion into a substantially concentric spiral; and
activating one or more treatment elements and ablating the continuous tissue region.
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Accused Products
Abstract
A method and system for ablating a tissue region. In an exemplary embodiment, the method includes positioning a medical device including a deformable and helical distal portion in contact with a tissue region, the a helical distal portion including a plurality of turns each having a diameter, the diameter of each turn being greater than the diameter of the next distal turn, compressing the helical distal portion against the tissue region, deforming the distal portion into a substantially concentric spiral, and activating one or more treatment elements and ablating the target tissue. The method may further include advancing the uncompressed helical distal portion into a hollow anatomical feature, such as a pulmonary vein, and activating one or more treatment elements and ablating the target tissue.
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Citations
20 Claims
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1. A method of ablating tissue, comprising:
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positioning a medical device including a deformable and helical distal portion in contact with a continuous tissue region, the helical distal portion including a plurality of turns each having a diameter, the diameter of each turn being greater than the diameter of the next distal turn; compressing the helical distal portion against the continuous tissue region, deforming the distal portion into a substantially concentric spiral; and activating one or more treatment elements and ablating the continuous tissue region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for ablating tissue, comprising:
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placing a medical device having a deformable and helical distal portion in contact with a continuous tissue region; shortening the length of the helical distal portion and deforming the helical distal portion into a substantially concentric flattened spiral; and activating one or more treatment elements and ablating the continuous target tissue. - View Dependent Claims (16, 17, 18, 19)
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20. A system for ablating tissue, comprising:
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a medical device including a deformable and helical distal portion in contact with a continuous tissue region, the helical distal portion including a plurality of turns, each turn having a greater diameter than the immediately distal turn; and a console including a cryogenic coolant reservoir.
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Specification