COAXIAL NEEDLE AND PIPETTING DEVICE

摘要

#CMT# #/CMT# The coaxial needle has a hollow suction lance (14) for sucking liquid from a pipette container (12) and a hollow insertion lance (16). The hollow introduction lance partly encloses the suction lance such that a liquid channel is formed for introducing liquid in the pipette container between an external wall of the suction lance and an inner wall of the insertion lance. The suction lance has an open end for accommodating liquid from a pipette container and another open end for delivery the liquid to a connecting piece. #CMT# : #/CMT# Independent claims are also included for the following: (1) a pipette device with a drive unit; and (2) a method for pipetting. #CMT#USE : #/CMT# Coaxial needle for a pipette device for microscope, particularly microscope of cell samples (all claimed). #CMT#ADVANTAGE : #/CMT# The coaxial needle has a hollow suction lance for sucking liquid from a pipette container and a hollow insertion lance, and hence ensures simplified and improved coaxial needle for fast and effective removing of a liquid from sample chambers. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic side view of a drive device for operating a coaxial needle. 12 : Pipette container 14 : Hollow suction lance 16 : Hollow insertion lance 88,94 : Pressures pistons 92,98 : Fastening elements.