Coronary bypass implant
First Claim
Patent Images
1. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
- a hollow blood flow conduit having a first end adapted to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber;
the conduit having a second end adapted to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel such that the second end can be substantially axially aligned with the vessel;
the conduit defining a blood flow path between the openings of the first and second ends; and
wherein the conduit includes a reservoir for accumulating blood from the conduit during periods of high blood pressure and for discharging accumulated blood into the conduit during periods of low blood pressure.
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Accused Products
Abstract
A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.
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Citations
19 Claims
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1. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
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a hollow blood flow conduit having a first end adapted to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber; the conduit having a second end adapted to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel such that the second end can be substantially axially aligned with the vessel; the conduit defining a blood flow path between the openings of the first and second ends; and wherein the conduit includes a reservoir for accumulating blood from the conduit during periods of high blood pressure and for discharging accumulated blood into the conduit during periods of low blood pressure.
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2. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
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a hollow blood flow conduit having a first end adapted to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber; the conduit having a second end adapted to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel such that the second end can be substantially axially aligned with the vessel; the conduit defining a blood flow path between the openings of the first and second ends; and wherein the blood flow path closes at least once during a cycle of the heart. - View Dependent Claims (3)
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4. A method for performing a coronary bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall of a heart having a heart chamber, the method comprising:
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inserting a hollow conduit through the heart wall where the conduit defines a blood flow path between a heart chamber opening and a vessel opening and with the heart chamber opening of the conduit in blood flow communication with the heart chamber; placing the vessel opening of the conduit to direct blood to flow from the blood flow path into the vessel in a flow direction generally parallel with an axis of the vessel. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification