Conduit designs and related methods for optimal flow control
First Claim
1. A method of bypassing an at least partially occluded blood vessel, comprising:
- determining a resistance to blood flow of the vessel at a location of an at least partial occlusion;
selecting a conduit having a configuration based on the resistance to blood flow of the vessel at the location of the at least partial occlusion; and
implanting the conduit in a heart wall between a heart chamber and the vessel downstream of the at least partial occlusion to directly flow blood between the chamber and the vessel.
2 Assignments
0 Petitions
Accused Products
Abstract
A bypass conduit and related methods include implanting a bypass in the heart between a heart chamber and an at least partially occluded artery to directly flow blood from the chamber to the artery. The bypass conduit is configured to have a higher resistance to blood flow in a first direction than in a second direction without any active flow control mechanism. The bypass conduit may have a first end defining a first opening and a second end defining a second opening and a wall extending between the two ends that defines a lumen extending between the two openings. The ends and the wall of the conduit are configured to have a higher resistance to blood flow in a first direction than in a second direction. A method of bypassing an at least partially occluded artery includes determining a resistance to blood flow of the artery at a location of an at least partial occlusion and selecting a conduit having a configuration based on the resistance to blood flow of the artery at the location of the at least partial occlusion. The method further includes implanting the conduit in a heart wall between the heart chamber and the artery downstream of the at least partial occlusion to directly flow blood between the chamber and the artery.
304 Citations
42 Claims
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1. A method of bypassing an at least partially occluded blood vessel, comprising:
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determining a resistance to blood flow of the vessel at a location of an at least partial occlusion;
selecting a conduit having a configuration based on the resistance to blood flow of the vessel at the location of the at least partial occlusion; and
implanting the conduit in a heart wall between a heart chamber and the vessel downstream of the at least partial occlusion to directly flow blood between the chamber and the vessel. - View Dependent Claims (2, 3, 4)
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5. A heart implant for bypassing an at least partially occluded blood vessel, the implant comprising:
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a first end defining a vessel opening configured to be placed in flow communication with a blood vessel;
a second end opposite the first end and defining a chamber opening that is smaller than the vessel opening and configured to be placed in flow communication with a heart chamber; and
a wall extending between the first and second ends defining a lumen extending from the vessel opening to the chamber opening, wherein said ends and said wall are configured such that the implant has a greater resistance to blood flow in a first direction from the vessel opening to the chamber opening than in a second direction from the chamber opening to the vessel opening, and wherein the implant is configured to be positioned in the heart such that the second end is closer to the heart chamber than the first end is to the heart chamber. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A heart implant for bypassing an at least partially occluded blood vessel, comprising:
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a first end defining a vessel opening configured to be placed in flow communication with a blood vessel;
a second end opposite the first end and defining a chamber opening that is smaller than the vessel opening and is configured to be placed in flow communication with a heart chamber; and
a wall extending between the first and second ends defining a lumen extending from the vessel opening to the chamber opening, wherein the implant is configured to have a greater resistance to blood flow in a first direction from the vessel opening to the chamber opening than in a second direction from the chamber opening to the vessel opening without any active flow control mechanism, and wherein the implant is configured to be positioned in the heart such that the second end is closer to the heart chamber than the first end is to the heart chamber. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for bypassing an at least partially occluded blood vessel, the method comprising:
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providing an implant having a first end defining a vessel opening, a second end defining a chamber opening, and a wall defining a lumen extending from the vessel opening to the chamber opening, the chamber opening being smaller than the vessel opening; and
placing the vessel opening in flow communication with a blood vessel and the chamber opening in flow communication with a heart chamber, such that the second end is closer to the heart chamber than the first end is to the heart chamber and blood flows through the implant between the heart chamber and the blood vessel;
wherein the ends and the wall are configured such that the implant has a greater resistance to blood flow in a first direction from the vessel opening to the chamber opening than in a second direction from the chamber opening to the vessel opening. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for bypassing an at least partially occluded blood vessel, the method comprising:
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providing an implant having a first end defining a vessel opening, a second end defining a chamber opening, and a wall defining a lumen extending from the vessel opening to the chamber opening, the chamber opening being smaller than the vessel opening; and
placing the vessel opening in flow communication with a blood vessel and the chamber opening in flow communication with a heart chamber, such that the second end is closer to the heart chamber than the first end is to the heart chamber and blood flows through the implant between the heart chamber and the blood vessel;
wherein the implant is configured to have a greater resistance to blood flow in a first direction from the vessel opening to the chamber opening than in a second direction from the chamber opening to the vessel opening without any active flow control mechanism. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification