Closed chest coronary bypass
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 with said channel retained open during both diastole and systole. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.
Claims17
A method for performing a coronary vessel bypass procedure for supplementing a flow of blood to a coronary vessel, the method comprising:
- forming a blood flow path from a heart chamber directly to the coronary vessel at a site in the vessel positioned between an obstruction in the vessel and tissue of the heart to be supplied with blood by the vessel;
- and
- the forming including placing a conduit in a heart wall between the chamber and the vessel with a first end of the conduit protruding into the chamber and protruding beyond an interior surface of the heart wall.
A method for performing a coronary bypass procedure for supplementing a flow of blood to a coronary vessel, the method comprising:
- forming a blood flow passageway from a heart chamber directly to the coronary vessel at a site in the vessel with the site positioned between an obstruction in the vessel and tissue of the heart to be supplied with blood from the vessel;
- and
- deflecting blood flowing from the heart chamber to the vessel for the blood to be deflected into the vessel without substantial impingement of the blood on a wall of the vessel and wherein the deflecting is provided by a deflection surface positioned between the vessel and the passageway to redirect blood flow from the heart chamber to a flow direction into the vessel.
A method for performing a coronary bypass procedure at a coronary vessel of a heart, the method comprising:
- forming a blood flow passageway directly from a left ventricle of the heart into the coronary vessel at a site in the vessel with the site positioned between an obstruction in the vessel
- and tissue of the heart to be supplied with blood from the vessel and with the blood flow path being open during both systole and diastole.
Dependencies are inferred from the claim text.