Electrocardiographic (ECG) recorders and electrocardiographic (ECG) digital plasters sold as a unit; heart monitors; heart rate monitors; medical apparatus for diagnosing suspected heart attacks; medical apparatus for preventing or reversing heart failure; medical apparatus for treating congestive heart failure; medical device, namely, a device for improving cardiac performance through aortic flow therapy; medical device, namely, a device for measuring arterial blood flow in the eye; medical ...