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EMBOLIC PROTECTION DEVICE

  • US 20110082492A1
  • Filed: 10/05/2009
  • Published: 04/07/2011
  • Est. Priority Date: 10/05/2009
  • Status: Active Grant
First Claim
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1. An embolic filter comprising:

  • a first hub having an axial lumen therethrough, said lumen defining a longitudinal axis of the filter and adapted to receive a guidewire therethrough;

    a second hub having an axial lumen therethrough, said lumen coinciding with the longitudinal axis of the filter and adapted to receive a guidewire therethrough wherein the first and second hubs are displaced along the longitudinal axis;

    a first plurality of struts each having a first end, a second end, and a length, said first ends being directly connected to the first hub and the said second ends of the first plurality of struts being biased to expand away from the longitudinal axis of the filter;

    a second plurality of struts each having a first end, a second end, and a length, said first ends directly connected to the second hub and the said second ends of the struts being biased to expand away from the longitudinal axis of the filter, wherein the lengths of the first plurality of struts is substantially the same as the lengths of the second plurality of struts and the two pluralities of struts assume equivalent angles with the longitudinal axis in an expanded state;

    at least a first population and a second population of support elements directly connected to the second ends of the respective first and second pluralities of struts such that each population of support elements defines a plane transverse to the longitudinal axis of the filter, said planes being relatively displaced along the longitudinal axis of the filter;

    a filter sac attached at its open end to the support elements and extending beyond the planes of the support elements in at least one of a proximal or distal direction;

    at least one band element slidable over the hubs and the struts thereby moving those portions of the struts which are coupled to the support elements closer to the longitudinal axis of the filter; and

    a control element attached to the band, said control element adapted to move the band along the longitudinal axis of the filter and over at least a portion of the longitudinal struts.

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