System and method for mapping and ablating body tissue of the interior region of the heart
First Claim
1. A catheter for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region, comprising:
- a handle assembly;
a shaft having a proximal end coupled to the handle assembly, and a distal end, the shaft extending along an axis;
a distal ring provided at the distal end and oriented perpendicular to the axis of the shaft, the distal ring having a plurality of electrodes positioned in spaced-apart manner about the distal ring; and
an ablation element positioned spaced apart from the distal ring.
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Accused Products
Abstract
A catheter for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region has a handle assembly, and a shaft having a proximal end coupled to the handle assembly. The catheter also has a mapping element provided adjacent its distal end, and an ablation element positioned spaced apart along the shaft from the mapping element. The mapping element is first positioned at the desired treatment location in the selected annulus region and the desired treatment location is mapped. The ablation element is then positioned at the desired treatment location by moving the mapping element away from the desired treatment location, and the desired treatment location is ablated.
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Citations
20 Claims
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1. A catheter for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region, comprising:
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a handle assembly;
a shaft having a proximal end coupled to the handle assembly, and a distal end, the shaft extending along an axis;
a distal ring provided at the distal end and oriented perpendicular to the axis of the shaft, the distal ring having a plurality of electrodes positioned in spaced-apart manner about the distal ring; and
an ablation element positioned spaced apart from the distal ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region, comprising:
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a catheter having;
a handle assembly;
a shaft having a proximal end coupled to the handle assembly, and a distal end, the shaft extending along an axis;
a distal ring provided at the distal end and oriented perpendicular to the axis of the shaft, the distal ring having a plurality of electrodes positioned in spaced-apart manner about the distal ring; and
an ablation element positioned spaced apart from the distal ring;
an energy source coupled to the ablation element; and
means coupled to the plurality of electrodes for processing electrical signals received from the plurality of electrodes. - View Dependent Claims (11, 12, 13, 14)
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15. A method of ablating tissue in a body cavity, comprising:
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providing a catheter having a shaft having a proximal end and a distal end, with the distal end of the shaft having a mapping element and an ablation element that is separate and spaced apart from the mapping element;
positioning the mapping element at the desired treatment location in the body cavity;
mapping the desired treatment location;
positioning the ablation element at the desired treatment location by moving the mapping element away from the desired treatment location; and
ablating the desired treatment location. - View Dependent Claims (16, 17, 18, 19)
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20. A catheter for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region, comprising:
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a handle assembly; and
a shaft having a proximal end coupled to the handle assembly, and a distal end, the shaft extending along an axis and further including a mapping element positioned adjacent the distal end, and an ablation element positioned spaced apart along the shaft from the mapping element.
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Specification