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US 9,788,932 B2Granted
Vascular filter
AssigneeCook Medical Technologies LLC
InventorKasper Klausen
Life of this patent
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Abstract
A filter comprises an inner, anchoring basket arranged concentrically inside an outer, alignment basket. The anchoring basket comprises a plurality of anchoring struts terminating in barbs. The alignment basket includes a plurality of alignment struts, which terminate downstream of the anchoring struts. A lumen is provided through hubs of the filter so that the filter can be deployed over a guidewire.
Claims18
A vascular filter, the filter having a collapsed configuration and an expanded configuration, the filter including:
- a first basket including a plurality of first legs cut from a first tube and extending from a first hub, the first hub including an uncut portion of the first tube;
- a second basket including a plurality of second legs cut from a second tube and extending from a second hub, the second hub including an uncut portion of the second tube;
- wherein the first hub is disposed concentrically within the second hub to form a filter hub, such that the pluralities of legs nest within one another;
- wherein the filter has a first end, the filter hub being located at or towards the first end, and a second end, the first legs terminating at the second end in the expanded configuration;
- wherein the second legs terminate at a position intermediate the first end and the second end in the expanded configuration, and wherein there are a greater number of second legs than first legs;
- and a lumen extending through the hubs to receive a guidewire during deployment.
3 more elements
Dependencies are inferred from the claim text.