CARTRIDGE FOR DISPENSING PARTICLES AND A REAGENT FLUID

摘要

The invention provides for a method of dispensing a mixture of particles (119) and reagent fluid (116) using a cartridge (102). The cartridge comprises: a first reservoir (114) at least partially filled with a reagent fluid (116); a second reservoir (118) at least partially filled with particles (119); a pumping chamber (126); at least one first pumping chamber conduit (120, 120') connecting the first reservoir and the pumping chamber; at least one second pumping chamber conduit (122, 122') connecting the second reservoir and the pumping chamber; an outlet (124) for dispensing the reagent fluid and the particles from the cartridge; an outlet conduit (130) connecting the outlet to the pumping chamber; and a valve (132) for sealing the outlet conduit. The method comprises the steps of: closing (200) the valve; applying (202) a force to transport a first defined volume of reagent fluid and second defined volume of particles into the pumping chamber to form a mixture of reagent fluid and particles; opening (204) the valve; and forcing (206) the mixture from the pumping chamber to dispense the mixture from the outlet.