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Axially detachable embolic coil assembly

  • US 5,350,397 A
  • Filed: 11/13/1992
  • Issued: 09/27/1994
  • Est. Priority Date: 11/13/1992
  • Status: Expired due to Term
First Claim
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1. A pusher-coil assembly for use in occluding a selected site within a vessel comprising:

  • (a) a vasoocclusive coil having a proximal end and a distal end and having an enlarged member with a diameter, said enlarged member fixedly attached to the coil'"'"'s proximal end;

    (b) a pusher housing having a distal end and having a socket at its distal end, said socket having a throat aperture diameter smaller than the diameter of the enlarged member within which the enlarged member is held; and

    (c) a plunger located within the pusher housing, said plunger axially movable relative to the pusher housing and coil from a first position to a second position, which axial movement pushes the coil and the enlarged member through the socket throat and thus uncouple the coil from the pusher housing.

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