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, wherein the upper portion of the valve membrane is attached to a bottom region of the first support portion and the lower portion of the membrane is attached to a top region of the second support portion.
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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.
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Citations
19 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, wherein the upper portion of the valve membrane is attached to a bottom region of the first support portion and the lower portion of the membrane is attached to a top region of the second support portion. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9)
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7. 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, first and second linking members 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 being movable between a first position to enable blood flow and a second position to inhibit blood flow, the valve membrane further comprising a third region folded over the second linking member for attachment, wherein the upper portion of the valve membrane is attached to a bottom region of the first support portion and the lower portion of the membrane is attached to a top region of the second support portion.
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10. 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 and third portions, the first portion attached at a first region of the support, the third portion attached at a second region of the support, and 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, wherein the first and a third portions of the valve membrane form a flap wrapped around a portion of the support, and the second portion forms a flap movable with respect to the first and third portions to create an opening for antegrade blood flow. - View Dependent Claims (11)
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12. 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 and third portions, the first portion attached at a first region of the support, the third portion attached at a second region of the support, and 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, wherein the valve membrane further comprises a 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 (13)
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14. 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, and a valve membrane supported by the support and having a first condition to enable blood flow and a second condition to inhibit blood flow, the valve membrane positioned in the vessel at a first angle extending across the vessel to traverse a longitudinal axis of the vessel such that opposite ends of the membrane are adjacent opposing walls of the vessel, and the membrane remaining substantially at the first angle in the first and second conditions, wherein the valve membrane has a first region unattached to the support. the first unattached region formed by at least one cut in the membrane, the first unattached region creating an opening adjacent the support during antegrade blood flow.
- View Dependent Claims (15)
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16. 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, and a valve membrane supported by the support and having a first condition to enable blood flow and a second condition to inhibit blood flow, the valve membrane positioned in the vessel at a first angle extending across the vessel to traverse a longitudinal axis of the vessel such that opposite ends of the membrane are adjacent opposing walls of the vessel, and the membrane remaining substantially at the first angle in the first and second conditions, wherein the valve membrane has a second region unattached to the support and spaced from the first region, the second unattached region formed by at least one cut in the membrane, the second unattached region creating an opening adjacent the support during antegrade blood flow, wherein the second unattached region moves adjacent the support to close the opening adjacent the support during retrograde blood flow.
- View Dependent Claims (17, 18, 19)
Specification