Device for regulating blood flow
First Claim
Patent Images
1. An implantable device for regulating blood flow through a blood vessel, comprising:
- a) an elongated support dimensioned and configured to be implanted in a blood vessel, the support including axially spaced apart first and second substantially annular support portions and a first linking member linking the axially spaced apart portions to one another; and
b) a valve membrane extending between the axially spaced apart support portions and having an upper portion, a lower portion and an intermediate portion, the valve membrane including a first region and a second lower region, the first region folded over the first linking member for attachment and the second region being adjacent the first region and unattached to the first linking member, the second region movable between a first position to enable blood flow and a second position to inhibit blood flow.
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Abstract
An implantable device for regulating blood flow through a blood vessel comprising an elongated support dimensioned and configured to be implanted in a blood vessel. The support includes a linking member linking axially spaced apart portions to one another. A valve membrane extends between the axially spaced apart support portions and includes first region folded over the first linking member and attached thereto and a second region adjacent the first region and unattached to the first linking member. The second region is movable between a first position to enable blood flow and a second position to inhibit blood flow.
14 Citations
16 Claims
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1. An implantable device for regulating blood flow through a blood vessel, comprising:
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a) an elongated support dimensioned and configured to be implanted in a blood vessel, the support including axially spaced apart first and second substantially annular support portions and a first linking member linking the axially spaced apart portions to one another; and b) a valve membrane extending between the axially spaced apart support portions and having an upper portion, a lower portion and an intermediate portion, the valve membrane including a first region and a second lower region, the first region folded over the first linking member for attachment and the second region being adjacent the first region and unattached to the first linking member, the second region movable between a first position to enable blood flow and a second position to inhibit blood flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable device for regulating blood flow through a blood vessel, comprising:
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a) an elongated support dimensioned and configured to be implanted in a blood vessel; and b) a valve membrane supported by the support and including first, second, third, and fourth portions, the first portion attached at a first region of the support, the third portion attached at a second region of the support, the second portion positioned between the first and third portions and unattached to the support, the second portion movable with respect to the support between a first position to enable blood flow and a second position closer to the support to inhibit blood flow, and the fourth portion separate from the second portion and unattached to the support, the fourth portion movable with respect to the support between a first position to enable blood flow and a second position to inhibit blood flow. - View Dependent Claims (12, 13, 14)
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15. An implantable device for regulating blood flow through a blood vessel, comprising:
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a) an elongated support dimensioned and configured to be implanted in a blood vessel and engagable with a blood vessel wall, the support including axially spaced apart first and second support portions, and a first linking member linking the axially spaced apart first and second support portions to one another, wherein the first linking member comprises first and second connecting members each having a first end connected to the first support portion and a second end connected to the second support portion, wherein the first ends of the first and second connecting members extend from and share a common point of the first support portion and the second ends of the first and second connecting members extend from separate points of the second support portion; and b) a valve membrane attached to the linking member, the valve membrane having an upper portion attached to a first section of the support and a lower portion attached to a second section of the support, the valve membrane having an enabling condition to enable blood flow when blood flows in one direction and an inhibiting condition to inhibit blood flow when blood flows in an opposite direction, the upper attached portion of the membrane and the lower attached portion of the membrane remaining substantially fixed in position in both the enabling condition and the inhibiting condition and the lower and upper attached portions remaining adjacent opposing regions of the vessel wall in both conditions. - View Dependent Claims (16)
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Specification