of use the system includes an autotransfusion device a removable cassette a cardiotomy reservoir a container for holding washing fluid and a reservoir for containing processed blood the removable cassette includes a centrifugal cell a peristaltic pump and multiple clamps each having fixed and sliding elements the cassette has a housing and multiple ducts for connection to the cardiotomy reservoir application_number US 81900401 A description referring now to the figures cardiotomy reservoir 1 receives blood from the operating field pouch 2 contains concentrated washed blood for reinfusion to the patient and container 3 contains washing liquid reservoir 1 pouch 2 and container 3 are connected by ducts 4 5 and 6 respectively to cassette 7 within cassette 7 ducts 4 5 and 6 are connected as shown in particular in fig3 to a single tube 8 of which a portion is preferably noose shaped by virtue of the particular shape of the end 7 a of a tab 7 b of cassette 7 as best seen in fig1 and 2 tube 8 is inserted in peristaltic pump 9 and extends to centrifugal cell 10 which is meant to be turned by conventional means not shown in the figure a duct 11 a for connection to a waste pouch 11 leads out from centrifugal cell 10 again referring to fig3 end portions 4 a 5 a and 6 a of the ducts 4 5 and 6 respectively before coupling to the tube 8 are accommodated in the cassette 7 so that they are co planar when cassette 7 is inserted in an autotransfusion device as shown in.