Patent ID: 7314598

Claim:
A dispensing device comprising: a plurality of dispensers, each of the dispensers including a nozzle unit comprising a syringe, and a detection sensor integrally formed by connecting its air inlet directly to a through hole formed to extend to the inner face of the syringe, for detecting the internal pressure in the syringe inside; a dispenser driver carrying the dispensers for driving the dispensers vertically or horizontally; and a plate having an array of tube engaging holes in alignment longitudinally and transversely for engaging with tubes to be measured, wherein the pitch between a nozzle leading end of the nozzle unit of a first one of the dispensers and a nozzle leading end of the nozzle unit of a second one of the dispensers arranged adjacent to the first one of the dispensers is equalized to the pitch between the tube engaging holes of the plate arranged in the transverse direction; and a control unit configured to control the suction and discharge of liquid from the nozzle units by slidably moving pistons in the inside of the syringes by motors mounted in frames, respectively.