Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue and expandable push devices for use with same
First Claim
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31. A method of forming a lesion in body tissue, comprising the steps of:
- positioning a first probe including a first probe body defining a proximal portion and a distal portion, a loop structure associated with the distal portion, and at least one operative element associated with the loop structure such that the loop structure is at least adjacent the tissue;
positioning a second probe including a second probe body defining a proximal portion and a distal portion and an expandable push structure associated with the distal portion such that the expandable push structure is adjacent the loop structure; and
urging the loop structure in the direction of the tissue with the expandable push structure.
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Abstract
An apparatus that facilitates the creation of circumferential lesions in body tissue. The apparatus includes a first probe having a loop structure that supports electrodes or other operative elements against the body tissue and a second probe with an expandable push structure that may be used to urge the loop structure against body tissue.
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Citations
47 Claims
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31. A method of forming a lesion in body tissue, comprising the steps of:
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positioning a first probe including a first probe body defining a proximal portion and a distal portion, a loop structure associated with the distal portion, and at least one operative element associated with the loop structure such that the loop structure is at least adjacent the tissue;
positioning a second probe including a second probe body defining a proximal portion and a distal portion and an expandable push structure associated with the distal portion such that the expandable push structure is adjacent the loop structure; and
urging the loop structure in the direction of the tissue with the expandable push structure. - View Dependent Claims (1, 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, 32, 33, 34, 35, 36, 37)
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36-1. A method as claimed in claim 31, wherein the step of positioning a first probe adjacent tissue comprises positioning the first probe adjacent pulmonary vein tissue.
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38. A sheath use with a probe including at least one operative element, the sheath comprising:
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an elongate body defining a probe lumen, a proximal portion, a distal portion, and a distal opening; and
an expandable push structure associated with the distal portion. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification