Patent ID: 6713022
Filing Date: 2004-03-30
Classification: B01L,G01N

Abstract:
A biofluid drop ejection unit for ejecting biofluid drops, the unit comprising:a biofluid drop ejection mechanism having a transducer which generates energy used to emit biofluid drops; and a reagent cartridge composed of a biochemically inert material for holding a biofluid, isolated from the drop ejection mechanism to avoid contamination between the biofluid drop ejection mechanism and the biofluid of the reagent cartridge, the reagent cartridge designed to be held in a detachable operative connection with the drop ejection mechanism such that upon operation of the drop ejection mechanism, the biofluid is emitted as the biofluid drops, wherein the reagent cartridge is configured to be disposable and the biofluid ejection mechanism is configured to be reusable; and an interior chamber configured to receive the reagent cartridge.