APPARATUS FOR PROVIDING CORONARY RETROPERFUSION AND METHODS OF USE

摘要

Apparatus and methods for perfusing ischemic myocardium, and optionally for reducing the load on a patient's left ventricle, are provided using an inlet conduit (11) having an inlet end (21) configured for insertion into an oxygenated blood source, (i.e., left atrium, left ventricle, aorta, pulmonary vein, subclavian artery, brachycephalic artery, radial artery, femoral artery, etc.). The conduit is coupled to an outlet conduit (12) configured for insertion into the coronary venous vascullature via the coronary ostium. The point of coupling (13) of the conduits may include a valve (45) for limiting a peak pressure, a motor or hydraulically actuated pump, or control circuitry (19) provided to control the pump with a user selected duty cycle.