Conditioning device for preparing multiple analyses

Claim 1

A conditioning device for preparing multiple analyses of an initial liquid sample to be analysed, said device comprising a receptacle, means communicating said receptacle with n calibrated analysis cells in which analysis reagents are inserted, the liquid to be analysed being conveyed from the receptacle to said analysis cells by centrifuging, each of the cells being provided with a capillary liquid-insertion orifice and an air exhaust capillary pipe, the improvement wherein; said device is in the form of a strip unit, said unit including a first end which carries said receptacle, and wherein said communication means includes a first tank which communicates firstly with the first analysis cell via the first capillary liquid-insertion orifice and secondly with a second tank which communicates firstly with a second analysis cell via the second capillary liquid-insertion orifice and secondly with a third tank and so on, the n th tank which is in communication with the (n-1) th tank communicating with the n th analysis cell via the n th capillary liquid-insertion orifice and with an overflow cell located near the second end of the strip unit, the volumes of the tanks being slightly greater than the volumes of the analysis cells to which they are respectively associated, the analysis cells as well as the tanks being substantially aligned along the strip unit, the communication means between the tanks further including means for ensuring successive and not simultaneous filling thereof, said conditioning device being suitable for fixing on a rotary circular plate which forms a rotor and being placed along a radius of said plate, the strip unit end which is fitted with the receptacle being located near the center of the plate, the end which is fitted with the overflow chamber being situated near the periphery of the plate.