公开(公告)号：US20230110524A1

公开(公告)日：2023-04-13

申请号：US16974160

申请日：2019-04-23

Applicant: Eppendorf AG

Inventor： Burkhardt Reichmuth ,  Uwe Dunker ,  Jens Wilmer ,  Tobias David

IPC: B01L3/02

Abstract: A pipette comprises a pipette housing, a neck configured to clamp on a pipette tip, and a drive apparatus. The drive apparatus comprises a drive element configured to displace a displacement element to draw a liquid sample into the pipette tip and to eject the liquid sample from the pipette tip. A scanning apparatus comprises a scanning element positioned proximate the neck and configured to be displaced relative to the pipette housing by a collar of the pipette tip when clamping the pipette tip onto the neck. A mechanical display apparatus is coupled to the scanning apparatus and comprises a display. When the pipette tip is clamped to the neck the scanning apparatus is configured to adjust the display depending on a height of the collar of the pipette tip relative to the neck, and the neck is configured to accommodate different collar heights.

公开(公告)号：US09028774B2

公开(公告)日：2015-05-12

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, and a method for producing the same, 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.

Abstract translation: 移液装置及其制造方法技术领域本发明涉及移液装置及其制造方法，其特征在于，包括：具有至少一个用于设定移液压力的阀装置的阀装置，其中所述阀装置包括阀室; - 至少一个泵装置，其连接到阀室以在阀室中产生腔室压力; - 移液通道，移液容器可连接到其上; - 对周围环境开放的旁路通道; 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所需的移液压力，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。

公开(公告)号：US11554367B2

公开(公告)日：2023-01-17

申请号：US16735066

申请日：2020-01-06

Applicant: Eppendorf AG

Inventor： Martin Seippel ,  Matthias Kunsch ,  Burkhardt Reichmuth ,  Tobias David ,  Frank Horstmann ,  Jens Wilmer ,  Marc Wilth

IPC: B01L3/02 ,  B01L9/00

Abstract: A pipette for use with a pipette tip includes a housing, a pin on the bottom end of the housing holding a pipette tip having first means for form-fit connection and a second means for form-fit connection which can be shoved onto the pin, constricting the pin, and/or expanding the tip before form-fit connection with the pin, a drive apparatus, at least one locking sleeve arranged concentric to the pin which is guided toward the pin in the housing, wherein the locking sleeve has a locked position having a pin in the inside constricted by shoving on a pipette tip, and/or is bordered on the outside by a tip shoved onto the pin, preventing a release from the pin, and the locking sleeve is upwardly displaceable out of the locked position so that the pin, and/or the tip is released, and the tip is removable from the pin.

公开(公告)号：US11338281B2

公开(公告)日：2022-05-24

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：US20200215528A1

公开(公告)日：2020-07-09

申请号：US16735066

申请日：2020-01-06

Applicant: Eppendorf AG

Inventor： Martin Seippel ,  Matthias Kunsch ,  Burkhardt Reichmuth ,  Tobias David ,  Frank Horstmann ,  Jens Wilmer ,  Marc Wilth

IPC: B01L3/02 ,  B01L9/00

Abstract: A pipette for use with a pipette tip includes a housing, a pin on the bottom end of the housing holding a pipette tip having first means for form-fit connection and a second means for form-fit connection which can be shoved onto the pin, constricting the pin, and/or expanding the tip before form-fit connection with the pin, a drive apparatus, at least one locking sleeve arranged concentric to the pin which is guided toward the pin in the housing, wherein the locking sleeve has a locked position having a pin in the inside constricted by shoving on a pipette tip, and/or is bordered on the outside by a tip shoved onto the pin, preventing a release from the pin, and the locking sleeve is upwardly displaceable out of the locked position so that the pin, and/or the tip is released, and the tip is removable from the pin.