Piezoelectric micropipette
AssigneeCellsorter Kft.
InventorBálint Szabó
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Abstract
The invention relates to a piezoelectric micropipette, which comprises a capillary tube forming the pipette, and an expansion chamber connected to the capillary tube, the expansion chamber having a flexible element and being connected to a piezoelectric actuator. According to the invention the flexible element of the micropipette is arranged in the expansion chamber, and the flexible element is connected to a rigid displacing element, and a piezoelectric actuator is connected to the rigid displacing element.
Claims20
A piezoelectric micropipette comprising a housing with a lower housing member and an upper housing member releasably connected to the lower housing member, a capillary tube and an expansion chamber connected to the capillary tube through the lower housing member, the expansion chamber having a flexible element and being connected to a piezoelectric actuator characterised in that the expansion chamber is formed in the lower housing member, the flexible element is a solid ring-shaped compressible flexible element of a substantially constant cross-section in operation for aspirating and dispensing very small amounts of a liquid down to the nanoliter range with an accuracy down to the picoliter range, arranged in the expansion chamber, and a rigid displacing element is arranged between the flexible element and the piezoelectric actuator.
Dependencies are inferred from the claim text.