IMPLANTABLE VASCULAR DEVICE
First Claim
1. A medical product, comprising:
- a stentless valve having a plurality of membranes free from any separate support frame, the plurality of membranes implantable in a body lumen in the absence of a stent and thereupon movable between a first position and a second position, wherein the membranes are movable in response to fluid flow through the lumen; and
an endoluminally advanceable delivery device having an expandable member upon which said stentless valve is mounted, the expandable member configured for expansion in the lumen for forcing the valve against the wall of the lumen for delivery of the valve.
8 Assignments
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
26 Claims
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1. A medical product, comprising:
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a stentless valve having a plurality of membranes free from any separate support frame, the plurality of membranes implantable in a body lumen in the absence of a stent and thereupon movable between a first position and a second position, wherein the membranes are movable in response to fluid flow through the lumen; and an endoluminally advanceable delivery device having an expandable member upon which said stentless valve is mounted, the expandable member configured for expansion in the lumen for forcing the valve against the wall of the lumen for delivery of the valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of treating a patient, comprising:
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delivering a medical product to a body lumen, the product including a stentless valve and further a catheter having an expandable member upon which the stentless valve is mounted, the stentless valve having a plurality of membranes free from any separate support frame, the plurality of membranes implantable in the body lumen in the absence of a stent and thereupon movable between a first position and a second position, wherein the membranes are movable in response to fluid flow through the lumen; expanding the expandable member in the body lumen so as to force the valve against a wall of the body lumen; and removing the catheter from the body lumen such that the valve remains anchored in the body lumen in the absence of a stent. - View Dependent Claims (15, 16)
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17. A medical product, comprising:
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a balloon catheter; a stentless valve removably mounted on the balloon catheter for percutaneous introduction into a body lumen of a patient, the valve comprising one or more leaflets and lacking radial expandability sufficient to anchor itself to the wall of the body lumen; and one or more barbs attached to the stentless valve, wherein the balloon catheter is configured to expand in the body lumen to force the stentless valve against the wall of the lumen such that the one or more barbs become embedded in the wall to anchor the valve in the body lumen in the absence of a stent.
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18. A method of controlling flow in a body lumen, the method comprising:
forcing a membrane of a stentless valve against a wall of a body lumen with a balloon such that a barb attached to the membrane extends into the wall and anchors the membrane in the body lumen in the absence of a stent, wherein the anchored membrane is thereupon moveable between a first position and a second position in response to the direction of fluid flow through the lumen, wherein said membrane in said first position restricts fluid flow through the lumen in a first direction alone or in combination with one or more additional membranes, and wherein said membrane in said second position permits fluid flow through the lumen in the first direction alone or in combination with one or more additional membranes. - View Dependent Claims (19, 20)
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21. A method of controlling flow in a body lumen, the method comprising:
moving a membrane of a valve between a first position and a second position in response to the direction of fluid flow through the lumen, wherein the valve is percutaneously implanted in the body lumen and is free from any separate support frame, wherein said membrane in said first position restricts fluid flow through the lumen in a first direction alone or in combination with one or more additional leaflets, and wherein said membrane in said second position permits fluid flow through the lumen in the first direction alone or in combination with one or more additional leaflets.
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22. A method for treating a patient comprising:
providing a percutaneously implanted valve anchored in a body lumen of the patient in the absence of a stent, the percutaneously implanted valve comprising one or more leaflets and lacking radial expandability sufficient to anchor itself to the wall of the body lumen. - View Dependent Claims (23, 24, 25, 26)
Specification