Endovascular tissue removal device
First Claim
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1. An endovascular tissue removal system comprising:
- an expandable mechanism introduceable to the ventricular side of a valve to support the leaflets of the valve in a closed position; and
a tissue removal device advanceable to the leaflets and configured to resect the leaflets as they are supported by the expandable mechanism.
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Abstract
An endovascular tissue removal system including an expandable mechanism introduceable to the ventricular side of a valve to support the leaflets of the valve in a closed position and a tissue removal device advanceable to the leaflets and configured to resect the leaflets as they are supported by the expandable mechanism.
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Citations
29 Claims
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1. An endovascular tissue removal system comprising:
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an expandable mechanism introduceable to the ventricular side of a valve to support the leaflets of the valve in a closed position; and
a tissue removal device advanceable to the leaflets and configured to resect the leaflets as they are supported by the expandable mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An endovascular tissue removal system comprising:
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an expandable mechanism introduceable to the ventricular side of a valve to support the leaflets of the valve in the closed position; and
a tissue removal device advanceable to the leaflets and configured to resect the leaflets as they are supported by the expandable mechanism, the tissue removal device including;
a lumen including a rotatable terminal hub advanceable and vasculature, at least one fiber extending from the hub for ablating tissue, and a second expandable mechanism connected to the fiber for biasing it into position for precisely ablating tissue as the hub rotates.
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24. An endovascular tissue removal system comprising:
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an expandable mechanism introduceable to the ventricular side of a valve to support the leaflets of the valve in the closed position; and
a tissue removal device advanceable to the leaflets and configured to resect the leaflets as they are supported by the expandable mechanism the tissue removal device including;
a lumen including a distal steerable tip portion extending from a joint portion, registration means for holding the joint portion fixed in place in the vasculature, and a source of ablation energy in communication with the lumen whereby tissue can be resected by ablation energy as the tip portion is steered within the vasculature.
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25. An endovascular tissue removal system comprising:
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an expandable mechanism introduceable to the ventricular side of a valve to support the leaflets of the valve in the closed position; and
a tissue removal device advanceable to the leaflets and configured to resect the leaflets as they are supported by the expandable mechanism, the tissue removal device including;
a fiber advanceable within vasculature to ablate tissue, an outer expandable balloon, and an inner expandable balloon spaced from the outer expandable balloon forming a space within which the fiber travels to resect tissue.
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26. A method of endovascularly removing a heart valve, the method comprising:
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introducing an expandable mechanism to the ventricular side of the valve;
expanding the mechanism to support the leaflets of the valve in a closed position; and
resecting the leaflets of the valve as they are supported by the expandable mechanism. - View Dependent Claims (27, 28, 29)
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Specification