An apparatus for the treatment of a medical liquid has a liquid treatment machine and a cassette that is insertable in the machine. The cassette has a rigid base body with fitted chambers and passages and a foil that covers the chambers and passages. Actuators and sensors are arranged in the liquid treatment...http://www.google.fr/patents/US7648627?utm_source=gb-gplus-shareBrevet US7648627 - Device for treating a medical liquid