Multiple-sided intraluminal medical device
First Claim
1. An artificial venous valve configured for use in an incompetent vein of a leg or foot comprising:
- an artificial valve device adapted for deployment from a catheter lumen within an incompetent vein of a leg or foot;
said artificial valve device having a self-expanding frame of resilient material, said frame having a plurality of side elements interconnected by a plurality of oppositely facing bends, said frame having a compressed configured adapted for loading within a catheter lumen wherein said bends are compressed and adjacent ones of said side elements are positioned generally beside one another in close proximity, and an expanded configuration wherein said side elements of the frame are adapted to conform to the wall of the vein; and
said artificial valve device further having flexible covering material attached to said frame so as to act as an artificial valve with said frame in said expanded configuration, wherein said flexible covering material comprises submucosa;
said flexible covering material defining edge portions having an attachment extending along first and second ones of said side elements adapted to conform to the wall of the vein, said attachment and first and second ones of said side elements defining periphery portions of at least one curved structure between said artificial valve;
said flexible covering material configured to displace toward the wall of the vein in an open condition of said artificial valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A multiple-sided medical device comprises a closed frame of a single piece of 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 that comprises a self-expanding stent. The stent is pushed from a delivery catheter into the lumen of a duct or vessel. One or more barbs are attached to the frame of the device for anchoring or to connect additional frames. A covering of fabric or other flexible material such as DACRON, PTFE, or collagen, is sutured or attached to the frame to form an occlusion device, a stent graft, or an artificial valve such as for correcting incompetent veins in the lower legs and feet. A partial, triangular-shaped covering over the lumen of the device allows the valve to open with normal blood flow and close to retrograde flow.
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Citations
12 Claims
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1. An artificial venous valve configured for use in an incompetent vein of a leg or foot comprising:
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an artificial valve device adapted for deployment from a catheter lumen within an incompetent vein of a leg or foot;
said artificial valve device having a self-expanding frame of resilient material, said frame having a plurality of side elements interconnected by a plurality of oppositely facing bends, said frame having a compressed configured adapted for loading within a catheter lumen wherein said bends are compressed and adjacent ones of said side elements are positioned generally beside one another in close proximity, and an expanded configuration wherein said side elements of the frame are adapted to conform to the wall of the vein; and
said artificial valve device further having flexible covering material attached to said frame so as to act as an artificial valve with said frame in said expanded configuration, wherein said flexible covering material comprises submucosa;
said flexible covering material defining edge portions having an attachment extending along first and second ones of said side elements adapted to conform to the wall of the vein, said attachment and first and second ones of said side elements defining periphery portions of at least one curved structure between said artificial valve;
said flexible covering material configured to displace toward the wall of the vein in an open condition of said artificial valve.
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2. An artificial venous valve configured for use in an incompetent vein of a leg or foot, comprising:
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a device adapted for deployment from a catheter lumen within an incompetent vein of a leg or foot;
said device having a self-expanding frame of resilient material, said frame having a plurality of side elements interconnected by a plurality of oppositely facing bends, said frame having a compressed configuration adapted for loading within a catheter lumen wherein said bends are compressed and adjacent ones of said side elements are positioned generally beside one another in close proximity, and an expanded configuration wherein sides elements of the frame are adapted to conform to the wall of the vein in a path extending at least partially longitudinally along the wall of the vein when said frame is deployed thereagainst; and
said device further having collagenous sheet material including an attachment extending along said side elements of said frame so as to act as an artificial valve with said frame in said expanded configuration wherein said collagenous sheet material comprises submucosa;
said collagenous sheet material attached along said side elements adapted to conform to the wall of the vein in the path extending at least partially longitudinally along said frame and having peripheral portions extending along said path, said cup configured to cup retrograde blood flow between said collagenous sheet material and the wall of the vein in a closed condition of said artificial valve;
said collagenous sheet material configured to displace toward the wall of the vein in an open condition of said artificial valve.
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3. A medical device for deployment of an artificial valve within an incompetent vein of a leg or foot, comprising:
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(a) a catheter having a lumen; and
(b) an artificial venous valve received in the lumen of the catheter, the artificial venous valve comprising;
a self-expanding frame of resilient material, said frame having a plurality of side elements interconnected by a plurality of oppositely facing bends, said frame having a compressed configuration adapted for loading within the lumen of the catheter wherein said bends are compressed and adjacent ones of said elements are positioned generally beside one another in close proximity, and an expanded configuration wherein sides elements of the frame are adapted to conform to the wall of the vein when said frame is deployed thereagainst; and
said device further having collagenous sheet material including an attachment extending along said side elements of said frame so as to act as an artificial valve with said frame in said expanded configuration wherein said collagenous sheet material comprises submucosa;
said collagenous sheet material attached along said side elements adapted to conform to the wall of the vein in the path extending at least partially longitudinally along the wall of the vein and thereby defining a cup extending along said path, said cup configured to cup retrograde blood flow between said collagenous sheet material and the wall of the vein in a closed condition of said artificial valve;
said collagenous sheet material configured to displace toward the wall of the vein in an open condition of said artificial valve.
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4. An artificial vascular valve, comprising:
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a frame of resilient material, the frame having a compressed configuration for delivery, and an expanded configuration for deployment at a vascular site; and
a covering comprising submucosa attached to said frame so as to act as an artificial valve with said frame in said expanded configuration, said covering including at least one attached portion comprising submucosa attached extending along side elements of said expandable frame adapted to conform to a wall of the vascular site when said frame is said side elements to forcibly press the at least one portion comprising submucosa against the wall of the vascular site when said frame is expanded, said covering further including at least one movable portion comprising submucosa extendable transverse to the wall of the vascular site and adapted to be movable toward and away from the wall of the vascular site with said frame expanded at the vascular site. - View Dependent Claims (5)
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6. A medical device for delivery of an artificial vascular valve, comprising:
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(a) a catheter having a lumen; and
(b) an artificial vascular valve received within the lumen of the catheter, the artificial vascular valve comprising;
a frame of resilient material, the frame having a compressed configuration for receipt within the lumen of the catheter, and an expanded configuration for deployment within a vascular vessel; and
a covering comprising submucosa attached to said frame so as to act as an artificial valve with said frame in said expanded configuration, said covering including at least one attached portion comprising submucosa attached extending along side elements of said expandable frame adapted to conform to a wall of the vascular vessel to thereby cause said side elements to forcibly press the at least one attached portion comprising submucosa against the wall of the vascular vessel when said frame is expanded in the vascular vessel, said covering further including at least one movable portion comprising submucosa extendable transverse to the wall to the vascular vessel and adapted to be movable toward and away from the wall of the vascular vessel with said frame expanded in the vascular vessel. - View Dependent Claims (7)
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8. A medical device for deployment at a vascular site, comprising:
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a frame that is expandable for deployment of the medical device at a vascular site; and
flexible covering material comprising submucosa, said flexible covering material including at least one portion attached to the frame along side elements of the frame adapted to conform to a wall of the vascular site to thereby cause said side elements to forcibly press the flexible covering material against the wall of the vascular site with the frame in an expanded configuration, said flexible covering material further including at least one portion configured to provide flexible covering material extending transversely to the wall of the vascular site to partially, completely of selectively restrict blood flow to the vascular site. - View Dependent Claims (9, 10, 11)
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12. A method for providing an artificial vascular valve in a vascular vessel, comprising:
providing within said vascular vessel an artificial valve device, said artificial valve device having an expandable frame of resilient material and a covering comprising submucosa attached to said frame so as to act as an artificial valve, said covering including at least one attached portion comprising submucosa attached extending along side elements of said expandable frame adapted to conform to a wall of the vascular vessel to thereby cause said side elements to forcibly press the at least one attached portion comprising submucosa against the wall of the vascular vessel when said frame is expanded in the vascular vessel, said covering further including at least one movable portion comprising submucosa extendable transverse to the wall of the vascular vessel and adapted to be movable toward and away from the wall of the vascular vessel with said frame expanded in the vascular vessel.
Specification