Implantable vascular device
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.
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Citations
3 Claims
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1. A method of manufacturing an implantable valve prosthesis for a tubular bodily passage, comprising the steps of:
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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. - View Dependent Claims (2, 3)
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Specification