Patent ID: 7685893

Claim:
A syringe block ( 10 ), adapted to be used in an automatic liquid-sample analysis machine ( 1 ), said block comprising a collector ( 3 ) and plural syringes ( 11 - 16 ) among which: a first one of said plural syringes takes an untreated blood sample, a second one of said plural syringes handles a diluting product ( 41 ), a third one of said plural syringes handles a lytic product ( 42 ), a fourth one of said plural syringes handles a cleaning product ( 43 ), and at least a fifth one of said plural syringes forms an air pump, each syringe of said plural syringes comprising a casing and a piston ( 21 - 26 ) between which is defined an internal volume, said collector comprising electronic switch valves ( 31 ), first ducts ( 5 ) linking the electronic switch valves directly to the respective internal volumes and second ducts ( 6 ) extending from the electronic switch valves in the direction of respective containers for liquids ( 41 - 44 ), wherein the pistons of all the plural syringes are rigidly linked to each other such that they simultaneously carry out a single movement (M) inside their respective casings, different positions of the electronic switch valves enabling a task to be carried out with one of said plural syringes, while others of said plural syringes have a neutralized function, although respective pistons of said others of said plural syringes carry out the single movement with said one of said plural syringes, the casings of all of the plural syringes being mounted directly on the collector ( 3 ).