An apparatus for analyzing the biomechanical behaviour of the cardiac muscle and for diagnosing pathological conditions of the heart. The apparatus measures and records the rise and fall of intra-ventricular pressure monitored by a transducer installed in a cardiac catheter or in an arterial probe. The...http://www.google.es/patents/US4592364?utm_source=gb-gplus-sharePatente US4592364 - Apparatus for the diagnosis of heart conditions
