Method to deliver blood from a heart chamber to vessel

Abstract

A method for revascularizing a coronary vessel with a conduit through the heart wall having a diameter transition in the myocardial leg, wherein blood flow is in the direction of transition from larger to smaller diameter. A method for revascularizing a coronary vessel using an implant with a myocardial leg having a maximum cross-sectional area proximate a first end, and inserting the first end through the myocardium into a heart chamber so that the implant directs blood flow into the coronary vessel. A transmyocardial implant with a myocardial leg including point of minimum diameter and a first end with a larger diameter, and a vessel leg in fluid communication with the myocardial leg.

1 - 17 . (canceled)  
     
     
         18 . A method for supplementing a flow of blood to a coronary vessel, the method comprising: 
 placing a conduit in a heart wall between a heart chamber and the coronary vessel so that a blood flow path directly between the heart chamber and a posterior of the coronary vessel remains open during both systole and diastole.    
     
     
         19 . The method of  claim 18 , wherein the blood flow path is at a site in the coronary vessel positioned between an obstruction in the coronary vessel and tissue of the heart to be supplied with blood by the coronary vessel.  
     
     
         20 . The method of  claim 18 , wherein the conduit includes a portion placed into the coronary vessel.  
     
     
         21 . The method of  claim 18 , wherein the conduit extends completely through the heart wall.  
     
     
         22 . The method of  claim 18 , wherein the conduit is valveless.  
     
     
         23 . The method of  claim 18 , wherein blood flow path is at a site in the coronary vessel between an obstruction in the coronary vessel and tissue of the heart.  
     
     
         24 . The method of  claim 23 , wherein the obstruction is a natural occlusion.  
     
     
         25 . The method of  claim 18 , wherein the heart chamber is a left ventricle.  
     
     
         26 . The method of  claim 18 , wherein the coronary vessel is a coronary artery.