Embolic containment system with asymmetric frictional control
First Claim
1. A system for treating a vascular condition, the system comprising:
- a hollow guidewire;
a core wire inserted through the hollow guidewire, the core wire including a tapered undulating section carried within the hollow guidewire; and
an embolic containment device coupled between a distal end of the hollow guidewire and a distal end of the core wire, wherein the tapered undulating section of the core wire provides frictional control of the embolic containment device based on a direction of axial translation within the hollow guidewire.
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Accused Products
Abstract
A system for treating a vascular condition, including a hollow guidewire, a core wire inserted through the hollow guidewire, and an embolic containment device. The core wire includes a tapered undulating section carried within the hollow guidewire. The embolic containment device is coupled between a distal end of the hollow guidewire and a distal end of the core wire. The tapered undulating section of the core wire provides frictional control of the embolic containment device based on a direction of core wire translation within the hollow guidewire. A method of treating a vascular condition and a guidewire-based embolic filter system are also disclosed.
106 Citations
20 Claims
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1. A system for treating a vascular condition, the system comprising:
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a hollow guidewire;
a core wire inserted through the hollow guidewire, the core wire including a tapered undulating section carried within the hollow guidewire; and
an embolic containment device coupled between a distal end of the hollow guidewire and a distal end of the core wire, wherein the tapered undulating section of the core wire provides frictional control of the embolic containment device based on a direction of axial translation within the hollow guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of treating a vascular condition, the method comprising:
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providing a core wire inserted through a hollow guidewire, the core wire including a tapered undulating section carried within the hollow guidewire;
providing an embolic containment device coupled between a distal end of the hollow guidewire and a distal end of the core wire;
axially translating the core wire in a first direction relative to the hollow guidewire;
expanding the embolic containment device based on the axial translation in the first direction; and
controlling the axial translation in the first direction based on frictional resistance between the tapered undulating section and an internal surface of the hollow guidewire. - View Dependent Claims (17, 18, 19)
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20. A guidewire-based embolic filter system comprising:
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a hollow guidewire; and
a core wire inserted through the hollow guidewire, the core wire including frictional control means for providing control of the expansion and contraction of an embolic filter based on a translational direction of the core wire within the hollow guidewire.
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Specification