Ablation system with feedback
First Claim
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1. A tissue ablation system comprising:
- an esophageal probe having a flexible shaft with a proximal end, a distal end, an exterior wall, and a first location element;
a first catheter including at least one ablation element for delivering energy to cardiac tissue, the first catheter having a flexible shaft with a proximal end, a distal end, an exterior wall, and a second location element;
andan interface unit for delivering energy to the first catheter, the interface unit programmed to;
calculate a distance between the first and second location elements; and
determine a temperature threshold for the ablation element based at least in part on the calculated distance.
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Abstract
Devices, systems and methods are disclosed for the ablation of tissue and treatment of cardiac arrhythmia. An ablation system includes an ablation catheter that has an array of ablation elements and a location element, an esophageal probe also including a location element, and an interface unit that provides energy to the ablation catheter. The distance between the location elements, determined by calculating means of the system, can be used by the system to set or modify one or more system parameters.
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Citations
42 Claims
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1. A tissue ablation system comprising:
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an esophageal probe having a flexible shaft with a proximal end, a distal end, an exterior wall, and a first location element; a first catheter including at least one ablation element for delivering energy to cardiac tissue, the first catheter having a flexible shaft with a proximal end, a distal end, an exterior wall, and a second location element; and an interface unit for delivering energy to the first catheter, the interface unit programmed to; calculate a distance between the first and second location elements; and determine a temperature threshold for the ablation element based at least in part on the calculated distance. - 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, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An ablation system comprising:
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a first catheter having at least one ablation element for delivering energy to cardiac tissue; a second catheter having a sensor and a location element; and an interface unit for providing energy to the at least one ablation element, the interface unit operable to determine the distance between the location element and the at least one ablation element, and define a temperature threshold for the ablation element based at least in part on the determined distance.
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Specification