Self furling umbrella frame for carotid filter
First Claim
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1. A system for capturing embolic or foreign material in a vessel, comprising:
- an elongate wire having a proximal end and a distal end;
a capturing device operatively connected to the elongate wire, having an expanded condition and a contracted position, the capturing device further having an inner surface and an outer surface;
a plurality of first struts attached to the capturing device inner surface and a plurality of second struts attached to the capturing structure outer surface;
the first and second struts further comprising at least a portion of a helical configuration; and
the capturing device assuming a self folding position in the contracted condition as both the first and second struts rotate with respect to the other struts.
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Abstract
A capture device for removal of clots and foreign bodies from vasculature or filtering of particulate from blood flow. The parachute-like capture device is connected to an elongate wire located within a longitudinally elongated tubular member. The capture device is radially expandable and is refolded to a reduced profile during contraction.
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Citations
17 Claims
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1. A system for capturing embolic or foreign material in a vessel, comprising:
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an elongate wire having a proximal end and a distal end; a capturing device operatively connected to the elongate wire, having an expanded condition and a contracted position, the capturing device further having an inner surface and an outer surface; a plurality of first struts attached to the capturing device inner surface and a plurality of second struts attached to the capturing structure outer surface; the first and second struts further comprising at least a portion of a helical configuration; and the capturing device assuming a self folding position in the contracted condition as both the first and second struts rotate with respect to the other struts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification