An apparatus simulating blood circulation in the human body which allows sphygmic diagnosis simulation to be performed by measuring simulated arterial pulses along a simulated artery portion which simulates an artery portion leading to either the left or right hand of the blood circulating system of...http://www.google.es/patents/US5396895?utm_source=gb-gplus-sharePatente US5396895 - Apparatus for simulating blood circulation