Intraluminal medical device with cannula for controlled retrograde flow
First Claim
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1. An implantable medical device for regulating fluid flow through a body vessel, said implantable medical device comprising:
- a valve member moveable within said body vessel between a first position that permits said fluid flow in a first direction and a second position that substantially prevents said fluid flow in a second direction;
at least one cannula disposed adjacent the valve member and adapted to permit a controlled amount of said fluid flow through said implantable medical device in the second direction; and
means for maintaining an axial position of the valve member within said body vessel.
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Abstract
Prosthetic valves for regulating fluid flow through a body vessel are described. The valves include a valve member that includes at least a portion that is capable of moving to selectively permit and substantially prevent fluid flow through the body vessel, either alone or with one or more additional valve members. A cannula is associated with the valve and permits a controlled amount of fluid flow through the valve, such as retrograde flow while the valve member substantially prevents fluid flow through the body vessel.
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Citations
20 Claims
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1. An implantable medical device for regulating fluid flow through a body vessel, said implantable medical device comprising:
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a valve member moveable within said body vessel between a first position that permits said fluid flow in a first direction and a second position that substantially prevents said fluid flow in a second direction;
at least one cannula disposed adjacent the valve member and adapted to permit a controlled amount of said fluid flow through said implantable medical device in the second direction; and
means for maintaining an axial position of the valve member within said body vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable medical device for regulating fluid flow through a body vessel, said implantable medical device comprising:
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an expandable support frame having radially compressed and radially expanded configurations;
at least one valve member attached to the expandable support frame, the at least one valve member including at least a portion that is moveable between a first position that permits said fluid flow in a first direction and a second position that substantially prevents said fluid flow in a second direction;
a cannula disposed adjacent the at least one valve member and adapted to permit a controlled amount of said fluid flow through said implantable medical device in the second direction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An implantable medical device for regulating fluid flow through a body vessel, said implantable medical device comprising:
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an expandable support frame having radially compressed and radially expanded configurations;
a first valve member attached to the expandable support frame and moveable between first and second positions;
a second valve member attached to the expandable support frame and moveable between third and fourth positions, the second valve member cooperating with the first valve member to define a valve opening that selectively opens and closes with movement of the first and second valve members to permit and substantially prevent fluid flow through said implantable medical device;
a first cannula disposed through the first valve member and adapted to permit a first controlled amount of fluid flow through said implantable medical device; and
a second cannula disposed through the second valve member and adapted to permit a second controlled amount of fluid flow through said implantable medical device.
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Specification