SEPARATION CAPILLARY INKJET DISPENSING WITH FLAT PIEZOELECTRIC ACTUATOR

A flat bar piezoelectric actuator affixed to a pressure chamber with one or more separation capillary tubes exiting near respective nozzle orifices is disclosed. The flat actuator against a flat wall of the pump chamber causes a relatively planar pressure wave to pass by the end of each capillary, t...

Full description

Saved in:
Bibliographic Details
Main Authors Furtaw, Michael D, Lamb, Donald T
Format Patent
LanguageEnglish
Published 24.02.2022
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
Online AccessGet full text

Cover

More Information
Summary:A flat bar piezoelectric actuator affixed to a pressure chamber with one or more separation capillary tubes exiting near respective nozzle orifices is disclosed. The flat actuator against a flat wall of the pump chamber causes a relatively planar pressure wave to pass by the end of each capillary, transporting a precise amount of separated analyte from the capillary out of the nozzle orifice. The nozzle may or may not be tapered. Multiple nozzles can form an inkjet print head that ejects precise droplets of analyte and sheath fluid. The small volume of mixed sheath liquid and analyte can then be jetted through the nozzle at a moving surface, either continuously or as discrete droplets. Relative positions on the surface can indicate separation distances of dispensed analytes.
Bibliography:Application Number: US202117518430