Pipette tip, pipetting device, pipette tip actuating device and method for pipetting in the NL range

US8071049B2 · kind B2 · utility

Assignees

• Roland Zengerle · DE
• Hermann Sandmaier · DE

Inventors

• Peter Koltay · March, DE
• Wolfgang Streule · Waldkirch, DE

Key dates

• Filing date: Feb 10, 2006
• Grant date: Dec 6, 2011
• Expiry date: Sep 11, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L2400/0481
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A changeable pipette tip includes a first end having a fluid opening and a second end having a pipe elastic in the radial direction having an orifice. The orifice and the fluid opening are in fluid connection. The first end is designed to be coupled to a matching coupling unit of a pipetting unit such that liquid may be sucked into the fluid area through the orifice by an actuating unit in the pipetting unit. In order to eject liquid as free-flying droplets or as a jet from the orifice of the pipe elastic in the radial direction, a volume change of a portion of the pipe elastic in the radial direction is effected.