Device for regulating blood
First Claim
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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 ring portions and a first linking member, the annular ring portions circumscribing a longitudinal axis of the elongated support, the first linking member coupled to the first annular ring portion at a first end and coupled to the second annular ring portion at a second end, the first and second ends are substantially opposing each other such that the first linking member traverses the longitudinal axis of the elongated support; and
b) a valve membrane extending between the axially spaced-apart annular ring 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
24 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 ring portions and a first linking member, the annular ring portions circumscribing a longitudinal axis of the elongated support, the first linking member coupled to the first annular ring portion at a first end and coupled to the second annular ring portion at a second end, the first and second ends are substantially opposing each other such that the first linking member traverses the longitudinal axis of the elongated support; and b) a valve membrane extending between the axially spaced-apart annular ring 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, the support including axially spaced-apart first and second ring members and a first linking member, the ring members circumscribing a longitudinal axis of the elongated support, the first linking member coupled to the first ring member at a first end and coupled to the second ring member at a second end, the first and second ends are substantially opposing each other such that the first linking member traverses the longitudinal axis of the elongated support; 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. - View Dependent Claims (12, 13, 14, 15)
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16. The 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 ring portions and a first linking member, the ring portions circumscribe a longitudinal axis of the elongated support, the first linking member coupled to the first ring portion at a first end and coupled to the second ring portion at a second end, the first and second ends are substantially opposing each other such that the first linking member traverses the longitudinal axis of the elongated support; and b) a valve membrane attached to the first 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 (17)
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18. An implantable device for regulating blood flow through a blood vessel, comprising:
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an elongated support dimensioned and configured to be implanted in a blood vessel, the elongated support comprising axially spaced-apart first and second ring members that circumscribe a longitudinal axis of the elongated support; 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 within the elongated support at a first angle extending from the first ring member at a first position to the second ring member at a second position, which opposes the first position, such that the valve membrane traverses the longitudinal axis of the elongated support, the valve membrane remaining substantially at the first angle in the first and second conditions. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification