Priming mechanisms for drop ejection devices

Provided is a priming mechanism for priming a biofluid drop ejection device having a drop ejection opening leading to an ejection reservoir. The priming mechanism includes a vacuum unit which generates a vacuum force, connected to a vacuum nozzle. The vacuum nozzle is located over the drop ejection...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HADIMIOGLU, BABUR B, HORINE, DAVID A, ELROD, SCOTT A, NOOLANDI, JAAN, ROY, JOY, BRUCE. RICHARD H
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BEER BIOCHEMISTRY CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE CHEMISTRY ENZYMOLOGY METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING NOZZLES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SPIRITS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	Provided is a priming mechanism for priming a biofluid drop ejection device having a drop ejection opening leading to an ejection reservoir. The priming mechanism includes a vacuum unit which generates a vacuum force, connected to a vacuum nozzle. The vacuum nozzle is located over the drop ejection opening. A disposable sleeve or tubing is attached to the vacuum nozzle and is placed in operational contact with the drop ejection opening. A fluid height detection sensor is positioned to sense a fluid height within at least one of the disposable tubing and the vacuum nozzle. Upon sensing a predetermined fluid height, by the fluid height detection sensor, the priming operation is completed, and the primer mechanism is removed from the operational contact with the drop ejection opening.