Patent ID: 6517527
Filing Date: 2003-02-11
Classification: A61B,A61M

Abstract:
A method of delivering a therapeutic substance to a plurality of sites in the myocardium with a single penetration into the heart comprising:introducing a tube having a deflectable distal portion and distal tip into the left ventricle of the heart; deflecting the distal tip of the tube so that the tip faces the endocardium; moving the tube in a proximal direction so that the distal tip penetrates the endocardium; ejecting a therapeutic substance through the tube into the myocardium; moving the distal tip from the myocardium by advancing the tube distally; adjusting the position of the tip by changing the deflection angle of the tip or by rotating the tube to a new myocardial location; moving the tube in a proximal direction to insert the distal tip into the myocardium at the new location; ejecting a therapeutic substance from the tube into the myocardium.