Handheld pipetting apparatus

US8661920B2 · kind B2 · utility

Assignee

• Eppendorf AG · DE

Inventors

• Peter Molitor · Andale, US
• Karl-Friedrich Andres · Bargteheide, DE
• Steffen Hofmann · Steinfeld, DE
• Heinz-Gerhard Kohn · Dransfeld, DE

Key dates

• Filing date: Sep 22, 2010
• Grant date: Mar 4, 2014
• Expiry date: Aug 22, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L2200/023
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A handheld pipetting apparatus for metering liquids, with a handleable pipette housing, at least one accommodation for a fastening portion of a syringe cylinder of a syringe, at least one plunger accommodation in an accommodation body for a plunger fastening portion of a syringe plunger of the syringe, syringe and plunger gripping levers for detachably holding the fastening portion in the accommodation and the plunger fastening portion in the plunger accommodation, at least one displacement device with a displacement chamber and a shiftable chamber wall limiting the same, for displacing a fluid; at least one seat for detachably holding a pipette point, a channel, connecting a hole in the seat with a displacement chamber, and at least one drive device, which is connected to couplable with the accommodation body the and/or the chamber wall, for shifting the accommodation body with respect to the accommodation, the and/or the chamber wall with respect to the displacement chamber.