Coronary bypass implant
AssigneeHeartStent Corporation
InventorsMark B. Knudson, William L. Giese
Life of this patent
Estimating the term…
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.
Claims19
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.
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 blood flow path closes at least once during a cycle of the heart.
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:
- 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.
Dependencies are inferred from the claim text.