Medical probes for creating and diagnosing circumferential lesions within or around the ostium of a vessel
First Claim
1. A probe for ablating tissue, comprising:
- an outer elongate probe body including a distal ablative structure having an open architecture defining an interior space;
a lumen extending through the outer probe body, the lumen configured to slidably receive an inner elongate probe body, the lumen having an exit port out which the inner probe body can extend within the interior space; and
one or more ablative elements mounted to the distal ablative structure, wherein the one or more ablative elements are arranged to create a circumferential lesion.
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Accused Products
Abstract
The present inventions provide assemblies, probes, and methods for creating circumferential lesions in tissue, e.g., the tissue within or around the ostium of a vessel. An ablation probe with an ablative structure can be placed in contact within or around the ostium of the vessel. A diagnostic probe can be introduced through a lumen within the ablation probe and inserted into the vessel. The energy can be provided to the ablative structure to create a circumferential lesion within or around the ostium of the vessel, and the diagnostic structure can be used to diagnose the tissue to determine whether the circumferential lesion can be properly created.
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Citations
46 Claims
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1. A probe for ablating tissue, comprising:
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an outer elongate probe body including a distal ablative structure having an open architecture defining an interior space;
a lumen extending through the outer probe body, the lumen configured to slidably receive an inner elongate probe body, the lumen having an exit port out which the inner probe body can extend within the interior space; and
one or more ablative elements mounted to the distal ablative structure, wherein the one or more ablative elements are arranged to create a circumferential lesion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A probe assembly for ablating tissue, comprising:
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an outer probe including an elongate probe body having a distal ablative structure, a lumen having an exit port, and one or more ablative elements mounted to the distal ablative structure; and
an inner probe configured to be slidably disposed within the lumen of the outer probe, the inner probe including an elongate probe body having a distal diagnostic structure configured to extend out the exit port, and one or more diagnostic elements mounted to the distal diagnostic structure. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A medical probe, comprising:
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an outer elongate probe body having a distal open helical structure;
a lumen extending through the outer probe body, the lumen configured to slidably receive an inner elongate probe body, the lumen having an exit port out which the inner probe body can extend along the helical structure; and
one or more operative elements mounted to the helical structure. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A method of creating a circumferential lesion adjacent an anatomical vessel, comprising:
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placing an ablation probe within or around an ostium of a vessel, the ablation probe comprising one or more ablative elements;
circumferentially arranging the one or more ablative elements within or around the vessel;
inserting a diagnostic probe through the ostium of the vessel, wherein the diagnostic probe is disposed within the vessel while the ablation probe is placed within or around the ostium of the vessel;
creating a circumferential lesion within or around the ostium of the vessel by energizing the one or more ablative elements; and
measuring diagnostic signals within the vessel with the diagnostic probe. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of electrically isolating a pulmonary vein from the left atrium of a heart, the method comprising:
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placing an ablation probe within or around an ostium of the pulmonary vein, the ablation probe comprising one or more ablative elements;
circumferentially arranging the one or more ablative elements within or around the ostium of the pulmonary vein;
inserting a mapping probe through the ostium of the pulmonary vein, wherein the diagnostic probe is disposed within the pulmonary vein while the ablation probe is placed within or around the ostium of the pulmonary vein;
creating a circumferential lesion within or around the ostium of the pulmonary vein by energizing the one or more ablative elements; and
measuring electrophysiology signals within the pulmonary vein with the mapping probe. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification