Patent ID: 8337779

Claim:
A reagent open mechanism of a luminescence measurement system which is capable of setting a reagent cartridge where a reagent is filled in a concave and an opening of the concave is sealed by a film, comprising: a triaxial actuator configured for horizontal movement represented by X axis and Y axis and vertical movement is represented by Z axis; a reagent dispensing nozzle operably connected to and driven by the triaxial actuator and capable of withdrawing a reagent from the reagent cartridge; a needle operably connected to and driven by the triaxial actuator and configured to open a hole in the film; a fixation block to which the reagent dispensing nozzle and the needle are operably connected, the fixation block being configured to arrange the reagent dispensing nozzle and the needle in such a location that the reagent dispensing nozzle or the needle does not contact with component elements of the luminescence measurement system including the reagent cartridge in the Z-axis operation during film opening time or reagent dividing and dispensing time; and a control section configured to output a drive signal to the triaxial actuator for moving the needle in an X-axis direction and/or a Y-axis direction within an opening range of the concave in a state in which the needle is inserted into the film.