EP 3528952 A1 20190828 - PIPETTING DEVICE WITH AN EASILY REPLACEABLE MAGNET PISTON
Title (en)
PIPETTING DEVICE WITH AN EASILY REPLACEABLE MAGNET PISTON
Title (de)
PIPETTIERVORRICHTUNG MIT EINFACH AUSTAUSCHBAREM MAGNETKOLBEN
Title (fr)
DISPOSITIF DE PIPETTAGE À PISTON MAGNÉTIQUE FACILEMENT REMPLAÇABLE
Publication
Application
Priority
- DE 102016220425 A 20161018
- EP 2017075953 W 20171011
Abstract (en)
[origin: WO2018073074A1] The invention relates to a pipetting device for aspirating and dispensing metering liquids, comprising the following: - at least one guide tube (30) which extends along a cylinder axis (Z), said cylinder axis (Z) defining an axial direction that runs along the longitudinal direction of the cylinder axis, a radial direction that runs orthogonally thereto, and a circumferential direction that runs circumferentially around the cylinder axis, - a piston (10) which is received in the guide tube (30) in an axially movable manner relative to the guide tube, - a coupling formation which is designed to temporarily or permanently couple a pipetting tip, and - a drive device (32) for driving the piston (10) in an axial direction relative to the guide tube (30), wherein the guide tube (30) has a coupling-side longitudinal end (48) which is positioned closer to the coupling formation and a maintenance-side longitudinal end (50) which is opposite the coupling-side longitudinal end (48) and which is positioned farther from the coupling formation. The piston (10) comprises at least one permanent magnet (14a,... 14m), and the drive device (32) has a coil assembly (32) which at least partly surrounds the guide tube (30) in the circumferential direction and which can be energized. The maintenance-side longitudinal end (50) of the guide tube (30) is open or is closed in an openable manner by a lid (52) which is intended to be releasable such that a piston (10) removal longitudinal end (54) positioned closer to the maintenance-side longitudinal end (50) of the guide tube (30) can be moved axially out of the guide tube by an external magnetic field.
IPC 8 full level
B01L 3/02 (2006.01); G01N 35/10 (2006.01); H01F 7/02 (2006.01)
CPC (source: EP US)
B01L 3/0217 (2013.01 - EP US); B01L 3/0227 (2013.01 - EP US); B01L 2200/0605 (2013.01 - US); B01L 2300/0832 (2013.01 - US); B01L 2400/043 (2013.01 - EP US); H01F 7/1615 (2013.01 - EP US)
Citation (search report)
See references of WO 2018073074A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102016220425 A1 20180419; EP 3528952 A1 20190828; US 2019255522 A1 20190822; US 2020282390 A9 20200910; WO 2018073074 A1 20180426
DOCDB simple family (application)
DE 102016220425 A 20161018; EP 17790987 A 20171011; EP 2017075953 W 20171011; US 201716343249 A 20171011