Medical device for the delivery and/or the extraction of fluid to and/or from a patient, said medical device comprising a pumping unit (1) for pumping a fluid, a warming chamber (2) with an inlet (3) and an outlet (4) and containing a heating element (5) for warming said fluid, fluid volume measuring...http://www.google.ca/patents/US7887509?utm_source=gb-gplus-sharePatent US7887509 - Fluid volume measurement device for medical use
