公开(公告)号：US20200246788A1

公开(公告)日：2020-08-06

申请号：US16065628

申请日：2016-12-21

Applicant: EPPENDORF AG

Inventor： Holger LINK ,  Tobias DAVID ,  Hedda MERKENS

IPC: B01L3/02

Abstract: The invention further relates to a method for producing said pipetting device. The invention relates to a pipetting device, in particular for pipetting a fluid sample by suctioning into a pipetting container using air under a pipetting pressure, having the following:—a valve assembly with at least one valve device for adjusting a pipetting pressure, said valve device having a valve chamber;—at least one pump device which is connected to the valve chamber in order to generate a chamber pressure in the valve chamber;—a pipetting channel which is connected to the pipetting container, and—a bypass channel which is open towards the surroundings, wherein—the pipetting channel and the bypass channel are each connected to the valve chamber; and—the at least one valve device has a closure element with a closure surface which is designed such that the chamber pressure is distributed to the pipetting channel and the bypass channel in a metered manner by the valve device in order to generate the desired pipetting pressure in the pipetting channel. The invention further relates to a method for producing said pipetting device.

公开(公告)号：US20200086310A1

公开(公告)日：2020-03-19

申请号：US16575304

申请日：2019-09-18

Applicant: Eppendorf AG

Inventor： Tobias DAVID

IPC: B01L3/02 ,  B01L9/00

Abstract: The invention relates to a holding apparatus for holding a pipetting container, in particular a serological pipette, at a pipetting apparatus, comprising a tubular connecting section that is configured to hold the tube-shaped end of a pipetting container in a pipetting position by means of a clamping connection, a clamping connection device that is arranged at the connecting section and that comprises a spring device for the establishment of the clamping connection and an air chamber device for releasing the clamping connection by means of a vacuum. Furthermore, the invention relates to a pipetting apparatus with that holding apparatus.

公开(公告)号：US20200209274A1

公开(公告)日：2020-07-02

申请号：US16634092

申请日：2018-07-26

Applicant: EPPENDORF AG

Inventor： Uwe DUNKER ,  Michael SCHICKE ,  Tobias DAVID

IPC: G01N35/10 ,  G01N35/00

Abstract: The invention relates to methods and to pipetting apparatuses for detecting at least one performance state of the suction mechanism of a pipetting device used for pipetting. Such a method and such a pipetting apparatus each use an electronic control device, a suction mechanism which, amongst other things, has an electrically powered motor, a measurement device have a pressure sensor or a measurement device acquiring the motor current for characterizing the physical work which is performed by the suction mechanism, wherein the pipetting device can partly be provided with a resistance device by means of which, during the execution of the method, the mechanical, in particular the hydraulic, resistance of the suction mechanism against the physical work performed by the motor is increased, wherein the control device is configured to detect a performance state of the pipetting apparatus, to acquire at least one value of this measurement value in function of a defined movement of the piston element, to store the at least one value of this measurement value in the data storage device.

公开(公告)号：US20200009547A1

公开(公告)日：2020-01-09

申请号：US16483398

申请日：2018-02-02

Applicant: Eppendorf AG

Inventor： Jens GERKEN ,  Christian EGGERT ,  Tobias DAVID ,  Wolfgang GOEMANN-THOSS ,  Peter SCHMIDT ,  Uwe DUNKER ,  Philip MULLER

IPC: B01L3/02 ,  G06F3/01 ,  G06F3/0346

Abstract: The invention relates to a handheld fluid transfer apparatus, more particularly a pipette or repeater pipette, and a laboratory system comprising the handheld fluid transfer apparatus, which comprises: a control apparatus, which comprises a data processor capable to execute a control program for controlling at least one electronically controllable function of the handheld fluid transfer apparatus using input data, a user interface device for receiving a user input, the user interface device comprising a motion sensor device for measuring motion data of the handheld fluid transfer apparatus and for providing at least one motion data sequence, which contains subsequently measured motion data, a motion data memory for storing the at least one motion data sequence, an evaluation device being configured to determine the input data in dependence on the evaluation of the at least one motion data sequence. The invention furthermore relates to a method for operating the fluid transfer apparatus or the laboratory system.

公开(公告)号：US20130243666A1

公开(公告)日：2013-09-19

申请号：US13782791

申请日：2013-03-01

Applicant: EPPENDORF AG

Inventor： Holger LINK ,  Tobias DAVID

IPC: B01L3/02 ,  B23P15/00

CPC classification number: B01L3/021 ,  B01L3/0213 ,  B01L2300/14 ,  B01L2400/0487 ,  B01L2400/049 ,  B01L2400/065 ,  B23P15/001 ,  Y10T29/49405

Abstract: The invention relates to a pipetting apparatus, in particular for pipetting a fluid sample by aspiration into a pipetting container by means of air under a pipetting pressure, said pipetting apparatus comprising: a valve arrangement having at least one valve device for setting a pipetting pressure, wherein the valve device comprises a valve chamber; at least one pump device, which is connected to the valve chamber to generate a chamber pressure in the valve chamber; a pipetting channel, to which the pipetting container can be connected, and; a bypass channel, which is open to the surrounding environment; wherein the pipetting channel and the bypass channel are each connected to the valve chamber; and wherein the at least one valve device is designed such that, to generate the desired pipetting pressure in the pipetting channel, the chamber pressure is distributed in a metered manner by the valve device between the pipetting channel and the bypass channel. The invention further relates to a method for producing this pipetting apparatus.

Abstract translation: 本发明涉及一种移液装置，特别是用于通过在移液压力下通过空气抽吸到移液容器中来吸移流体样品，所述移液装置包括：阀装置，其具有至少一个用于设定移液压力的阀装置， 其中所述阀装置包括阀室; 至少一个泵装置，其连接到所述阀室以在所述阀室中产生室压力; 移液管可以连接到移液管上; 旁路通道，对周围环境开放; 其中所述移液通道和所述旁通通道各自连接到所述阀室; 并且其中所述至少一个阀装置被设计成使得为了在所述移液通道中产生期望的移液压力，所述腔室压力通过所述阀装置在所述移液通道和所述旁路通道之间以计量方式分配。 本发明还涉及一种生产该移液装置的方法。