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Balloon expandable crush-recoverable stent device

  • US 7,763,065 B2
  • Filed: 07/21/2004
  • Issued: 07/27/2010
  • Est. Priority Date: 07/21/2004
  • Status: Active Grant
First Claim
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1. A balloon expandable crush-recoverable stent, comprising:

  • at least two radial elements arranged to form a tubular member, the radial elements being slidably interconnected for allowing the tubular member to expand from a collapsed diameter to an expanded diameter, at least one radial element comprising;

    a locking mechanism for maintaining the tubular member in the expanded diameter after deployment, the locking mechanism comprising a plurality of teeth disposed on a first deflectable member that extends from a first end of the at least one radial element to a second end thereof, the locking mechanism further comprising a locking tab disposed at the first end of the at least one radial element; and

    a constraining mechanism integrated into the at least one radial element for maintaining the tubular member in the collapsed diameter until released by radial expansion, the constraining mechanism comprising at least one recess disposed on a first containment member that extends from the first end of the at least one radial element to the second end thereof, the constraining mechanism further comprising a hold-down tab disposed at the second end of the at least one radial element;

    wherein the radial elements are fabricated from a shape-memory material for providing crush-recoverability.

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