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Medical retrieval device

  • US 7,063,707 B2
  • Filed: 03/06/2003
  • Issued: 06/20/2006
  • Est. Priority Date: 03/06/2002
  • Status: Expired due to Term
First Claim
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1. A medical retrieval device comprising:

  • an elongated shaft including a distal end;

    a cage having a distal end and a proximal end, the proximal end of the cage coupled to the distal end of the shaft, the cage including an inner surface defining a lumen and at least one internal migration barrier,wherein the at least one internal migration barrier comprises an attached end and a free end, the attached end attached to an inside surface of the cage and the free end extending inwardly toward a longitudinal axis of the cage and proximally toward the proximal end of the cage.

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