Unfurling electrode devices with the protection element
First Claim
1. An ablation device for treatment of tissue in body lumens with varying sizes, the device comprising:
- a catheter;
an expansion member coupled with the catheter;
an ablation structure coupled with the expansion member, wherein the ablation structure is configured to furl around the expansion member to a furled configuration as the expansion member contracts and unfurl around the expansion member to an unfurled configuration as the expansion member expands; and
one or more protection elements positioned along the catheter at least distal or proximal to the ablation structure, wherein a radial dimension of the one or more protection elements is greater than a radial dimension of the ablation structure in the furled configuration.
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Accused Products
Abstract
Methods, systems, and devices for providing treatment to a tissue in body lumens are described. The system may include a catheter, an expansion member coupled with a distal portion of the catheter, an ablation structure including one or more longitudinal electrode segments, and an ablation structure support coupled to the ablation structure configured to at least partially unfurl as the expansion member expands and furl as the expansion member contracts. The ablation structure may include multiple separately wired and/or separately controlled longitudinal electrodes, longitudinal electrode zones, or both, such that each longitudinal electrode or longitudinal electrode zone may be selectively enabled or selectively disabled. In some instances, one or more springs are coupled to the ablation structure configured to promote unfurl or furl around the expansion member. In some instances, one or more protection elements are be positioned along the catheter.
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Citations
28 Claims
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1. An ablation device for treatment of tissue in body lumens with varying sizes, the device comprising:
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a catheter; an expansion member coupled with the catheter; an ablation structure coupled with the expansion member, wherein the ablation structure is configured to furl around the expansion member to a furled configuration as the expansion member contracts and unfurl around the expansion member to an unfurled configuration as the expansion member expands; and one or more protection elements positioned along the catheter at least distal or proximal to the ablation structure, wherein a radial dimension of the one or more protection elements is greater than a radial dimension of the ablation structure in the furled configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for treatment of tissue in body lumens with varying sizes, the method comprising:
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inserting an ablation structure coupled with an expansion member into a body lumen, wherein one or more protection elements are positioned along the catheter at least distal or proximal to the ablation structure, wherein a radial dimension of the one or more protection elements is greater than a radial dimension of the ablation structure in a furled configuration; and expanding the expansion member to at least partially unfurl the ablation structure to engage the body lumen, wherein the ablation structure is configured to furl around the expansion member to the furled configuration as the expansion member contracts and unfurl around the expansion member to an unfurled configuration as the expansion member expands. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification