TISSUE ABLATION SYSTEM INCLUDING GUIDEWIRE WITH SENSING ELEMENT
First Claim
1. A medical system for ablating tissue, comprising:
- a tissue ablation device defining a lumen; and
a sensing device operable to detect electrical activity of the tissue, the sensing device being slidably positionable through at least a portion of the lumen.
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Abstract
A tissue ablation system for ablating tissue is presented having independent sensing and ablation capabilities. A sensing wire is positioned distally to the ablation region and passed through the ablation device allowing independent movement. The ablation device can ablate a substantial portion of a circumferential region of tissue. The tissue ablation system comprises an ablation device comprised of an elongated catheter with a proximal region and a distal region and an ablation element located proximate the distal region of the catheter. A sensing device having an elongated body with a proximal portion and a distal portion is adapted to be positioned within a vessel at or near a vessel ostium, wherein the sensing device is adapted to be slidably received within a lumen of the ablation device. The sensing device may be shaped in various configurations.
77 Citations
20 Claims
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1. A medical system for ablating tissue, comprising:
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a tissue ablation device defining a lumen; and a sensing device operable to detect electrical activity of the tissue, the sensing device being slidably positionable through at least a portion of the lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical system for ablating tissue, comprising:
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a cryogenic tissue ablation device defining a lumen; and a guide wire slidably positionable through at least a portion of the lumen, the guide wire being transitionable from a substantially straight configuration to a substantially circumferential configuration. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A medical system for ablating tissue, comprising:
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a balloon catheter defining a lumen through at least a portion thereof; a source of cryogenic fluid coupled to the balloon catheter; and a guide wire slidably positionable through at least a portion of the lumen, the guide wire being transitionable from a substantially straight configuration to a substantially circumferential configuration, and the guide wire including at least one electrode to detect electrical activity of the tissue.
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Specification