PIPETTING HEAD, PIPETTING DEVICE COMPRISING A PIPETTING HEAD, AND METHOD FOR PIPETTING USING A PIPETTING HEAD

• Main Authors: WILMER, Jens, SCHNEIDER, Dominik
• Format: Patent
• Language: English; French; German
• Published: 24.03.2021
• Subjects: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TRANSPORTING

A pipetting head comprises a carrier, at least one attachment held on the carrier and configured to secure at least one pipette tip, and two O-rings retained on the at least one attachment and configured to contact the sealing seat of the at least one pipette tip. The inner diameter of the sealing seat of the at least one pipette tip is smaller than an outer diameter of a respective O-ring where the sealing seat contacts a respective O-ring. The respective O-ring is deformed while the pipette tip is slid onto the at least one attachment to securely clamp the at least one pipette tip. The sealing seat of the at least one pipette tip is dimensioned such that the at least one attachment exerts a force on the pipette tip to deform the at least one pipette tip when it is securely clamped on the at least one attachment.