Apparatus for providing coronary retroperfusion and/or left ventricular assist and methods of use

摘要

Apparatus and methods for reducing the load on a patient's left ventricle while perfusing ischemic myocardium are provided using a first conduit having an inlet end configured for insertion into the left atrium, left ventricle or aorta coupled to a second conduit having an outlet end configured for insertion into the coronary venous vasculature via the coronary ostium. A motor-driven or hydraulically-actuated pump may be coupled between an outlet end of the first conduit and an inlet end of the second conduit to direct flow between the first and second conduits. Control circuitry is provided for use with the motor-driven pump to control the pump with a user selected duty cycle.