Patent ID: 8329119

Claim:
A reagent preparation and dispensing device comprising: a body; a reagent reservoir containing a reagent, the reagent reservoir disposed within the body, the reagent reservoir including a reagent reservoir seal; a solution reservoir containing a solution, the solution reservoir disposed within the body; a barrel movably coupled within the body, the barrel including the solution reservoir and a piercing edge at a first barrel end, the piercing edge sized and shaped for piercing of the reagent reservoir seal; an activator movably coupled with the body to open the reagent reservoir and the solution reservoir, the activator movable to mix the solution with the reagent to reconstitute the reagent and form a specified amount of a reagent mixture; a plunger movably coupled with the barrel and coupled with the activator, the barrel and the plunger form a flushing chamber, the plunger is configured to force flushing fluid into the reagent reservoir and the flushing fluid correspondingly forces the specified amount of reagent mixture through a dispensing reservoir tip; the plunger is movable relative to the barrel between an unsealed condition and a sealed condition, and: in the unsealed condition a flushing fluid vent extends between the plunger and a barrel wall allowing the flushing fluid in the flushing chamber to vent to atmosphere, and in the sealed condition the flushing fluid vent is closed and movement of the activator and the plunger forces the flushing fluid into the reagent reservoir; and the dispensing reservoir tip is coupled with the body, the dispensing reservoir tip is sized and shaped to hold the specified amount of the reagent mixture, and the dispensing reservoir tip sized and shaped to dispense the specified amount of the reagent mixture outside of the device.