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Embolus blood clot filter and delivery system

  • US 8,062,327 B2
  • Filed: 05/09/2006
  • Issued: 11/22/2011
  • Est. Priority Date: 08/09/2005
  • Status: Active Grant
First Claim
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1. A blood filter delivery system for a blood filter unit, comprising:

  • an introducer having a coupling port connected to an elongated generally tubular member;

    a storage member coupled to the coupling port of the introducer and a Y-adaptor; and

    a pusher assembly having a distal end disposed in the storage member and a proximal end extending out of the Y-adapter, the pusher assembly including;

    a handle disposed along a longitudinal axis of the pusher assembly proximate the proximal end;

    a pusher pad disposed along the longitudinal axis of the pusher assembly proximate the distal end;

    an elongated member between the handle and the pusher pad, the elongated member having a flexible section with a distal end directly in contact with and continuous with a proximal end of the pusher pad, the flexible section compressed along the longitudinal axis in a predeployed configuration to provide a spring force for filter deployment; and

    a spline member disposed on the pusher assembly along the longitudinal axis between the handle and the pusher, the spline member having a first boss portion and a second boss portion spaced apart along the longitudinal axis to provide a gap therebetween, the first boss portion including a plurality of longitudinal grooves; and

    a blood filter having a plurality of anchor members disposed about the longitudinal axis, each of the anchor members having;

    a portion disposed in each of the plurality of longitudinal grooves, respectively; and

    a hook disposed in the gap.

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