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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
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。
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Patent Agency Ranking
公开(公告)号：US09393561B2
公开(公告)日：2016-07-19
申请号：US13782787
申请日：2013-03-01
Applicant: Eppendorf AG
Inventor： Holger Link
CPC classification number: B01L3/021 , B01L3/0217 , B01L2300/0861 , G01N35/1065
Abstract: The invention relates to a pipetting device for pipetting at least one fluid laboratory sample into at least one pipetting vessel, said device having a main body extending along an axis direction, at least one connecting section, to which at least one pipetting vessel can be connected by an at least partially axial connecting movement along the positive axis direction, wherein the at least one connecting section is connected to the main body so as to be movable at least in the axis direction, a spring mechanism, by which the at least one connecting section is supported with spring loading on the main body at least in a first operating state of the pipetting device, such that the at least one connecting section, during the connecting movement, can perform a spring-assisted deflection movement along the positive axis direction, wherein an auxiliary mechanism is provided on the pipetting device and is designed to act on the deflection movement of the at least one connecting section in at least a second operating state of the pipetting device, wherein the pipetting device is designed such that the user can alternately put it into the first operating state or the second operating state. The invention further relates to a multi-channel pipetting device.
Abstract translation: 本发明涉及一种用于将至少一个流体实验室样品移液到至少一个移液容器中的移液装置，所述装置具有沿轴向方向延伸的主体，至少一个连接部分，至少一个移液管可连接到该移液管 通过沿着所述正轴方向的至少部分轴向的连接运动，其中所述至少一个连接部分至少连接到所述主体以至少在所述轴线方向上可移动;弹簧机构，所述至少一个连接 至少在吸移装置的第一操作状态下，弹簧加载在主体上，使得至少一个连接部分在连接运动期间能够沿着正轴方向执行弹簧辅助的偏转运动， 其中辅助机构设置在所述移液装置上并且被设计成作用于所述至少一个连接部分的在所述偏转运动 所述移液装置的至少第二操作状态，其中所述移液装置被设计成使得所述用户可以交替地将其置于所述第一操作状态或所述第二操作状态。 本发明还涉及一种多通道移液装置。
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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.
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公开(公告)号：US12290805B2
公开(公告)日：2025-05-06
申请号：US17366146
申请日：2021-07-02
Applicant: Eppendorf AG
Inventor： Marc Wilth , Holger Link
IPC: B01L3/02
Abstract: A multichannel pipetting head comprises a plunger actuator comprising at least one groove with an upper border, and a lower border. A plurality of plunger-cylinder units, wherein each plunger-cylinder unit comprises a cylinder and a plunger comprising a plunger head. The plunger head comprises a projecting upper abutment region adjoining the upper border, a projecting lower abutment region adjoining the lower border and laterally offset relative to the projecting upper abutment region, a plurality of guides. Each of the cylinders is coupled to a neck and held on each of the plurality of guides. During lateral movement of the plurality of guides, the plunger head is configured to tilt in the groove and to be held with the upper abutment region abutting the upper border and with the lower abutment region abutting the lower border of the groove due to restoring forces that occur during tilting in the plunger-cylinder units.
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公开(公告)号：US20220016618A1
公开(公告)日：2022-01-20
申请号：US17375568
申请日：2021-07-14
Applicant: Eppendorf AG
Inventor： Matthias Kunsch , Burkhardt Reichmuth , Holger Link
IPC: B01L3/02
Abstract: A pipette comprises a housing extending from a lower end to an upper end and a neck extending from the lower end of the housing and configured to hold a pipette tip. A stroke rod comprising an upper end and a lower end is configured to displace a tip plunger in the pipette tip. A drive apparatus is configured to displace the stroke rod to: (1) aspirate a liquid specimen into the pipette tip held on the neck; and (2) to eject the specimen from the pipette tip by means of a tip plunger positively connected to the stroke rod. At least one locking sleeve is arranged coaxially with the stroke rod and configured to be displaceably guided toward the stroke rod in the housing, The locking sleeve is configured to inhibit release of a tip plunger from the stroke rod.
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公开(公告)号：US20220001377A1
公开(公告)日：2022-01-06
申请号：US17366146
申请日：2021-07-02
Applicant: Eppendorf AG
Inventor： Marc Wilth , Holger Link
IPC: B01L3/02
Abstract: A multichannel pipetting head comprises a plunger actuator comprising at least one groove with an upper border, and a lower border. A plurality of plunger-cylinder units, wherein each plunger-cylinder unit comprises a cylinder and a plunger comprising a plunger head. The plunger head comprises a projecting upper abutment region adjoining the upper border, a projecting lower abutment region adjoining the lower border and laterally offset relative to the projecting upper abutment region, a plurality of guides. Each of the cylinders is coupled to a neck and held on each of the plurality of guides. During lateral movement of the plurality of guides, the plunger head is configured to tilt in the groove and to be held with the upper abutment region abutting the upper border and with the lower abutment region abutting the lower border of the groove due to restoring forces that occur during tilting in the plunger-cylinder units.
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