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Implantable vascular device

  • US 7,597,710 B2
  • Filed: 11/25/2003
  • Issued: 10/06/2009
  • Est. Priority Date: 02/03/2000
  • Status: Expired due to Term
First Claim
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1. A method of manufacturing an implantable valve prosthesis for a tubular bodily passage, comprising the steps of:

  • providing a flexible biomaterial and a support frame including a plurality of bends and interconnected sides to define a closed circumference with an aperture therethrough, the support frame includes a first configuration for intravascular delivery into said bodily passage and a second configuration for implantation therein, the plurality of bends in the first configuration comprising at least a first pair of opposite bends and a second pair of opposite bends;

    forming a slit in the flexible biomaterial;

    placing the flexible biomaterial against the support frame such that an overhang portion thereof extends beyond the closed circumference;

    orienting said slit between one of the first and second pair of opposite bends;

    folding the overhang portion of the flexible biomaterial over the sides, generally enclosing the sides within the folded overhang portion;

    welding a portion of the folded overhang portion to itself by a series of heat welds along the sides and bends to secure the folded overhang portion of the flexible biomaterial to the sides enclosed therein; and

    folding the support frame to the second configuration about a diagonal axis across the aperture of the support frame by bringing the first pair of opposite bends in closer proximity to form a first end of said implantable prosthesis and the second pair of opposite bends in closer proximity to form a second end of said implantable valve prosthesis.

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