公开(公告)号：US20220258152A1

公开(公告)日：2022-08-18

申请号：US17626385

申请日：2020-07-29

Applicant: TECAN TRADING AG

Inventor： Philipp OTT ,  Adrian SAGER ,  Thomas GEIGES

IPC: B01L3/02

Abstract: A displacement device for displacing a displacement volume is disclosed. The device has a first fluid space and a second fluid space. A first piston is arranged in a movable manner within the first fluid space. The first fluid space is connectable to a pipetting device. The first piston is actuatable by an actuation volume of air or of liquid provided by the pipetting device. A second piston is arranged in a movable manner within the second fluid space. The second piston is constructed to displace a displacement volume of a fluid located within the second fluid space when the second piston is actuated. The second piston is actuated in dependence on the first piston that is actuated by the actuation volume. The actuation volume is different from the displacement volume, and a pipetting system has a displacement device and a method of displacing a displacement volume.

公开(公告)号：US20220155327A1

公开(公告)日：2022-05-19

申请号：US17524217

申请日：2021-11-11

Applicant: TECAN TRADING AG

Inventor： Thomas GEIGES

IPC: G01N35/00 ,  B01L3/02 ,  B01L9/00 ,  B25J18/00

Abstract: A robotic arm of an automated pipetting system has a pipetting tip adapter and a slide switch to detect the presence of pipetting tips on the pipetting tip adapter is disclosed. The slide switch has first support member and second support member configured to slide relative to one another between first and second positions along a movement axis, an electrically conducting contact pad arranged on the first support member, an electrically conducting terminal physically attached to second support member in physical contact with the contact pad when support members are in first position, where the terminal is a first resilient and inherently stable wiping member expanding along the movement axis, first wiping member is not in physical contact with the contact pad when support members are in second position, and an electric current can flow between first wiping member and the contact pad when support members are in first position.

公开(公告)号：US20220196696A1

公开(公告)日：2022-06-23

申请号：US17554221

申请日：2021-12-17

Applicant: TECAN TRADING AG

Inventor： Matthias DZUNG ,  Patrick KINNEY ,  Philipp OTT ,  Carsten HASE ,  Andreas SCHENK ,  David PAPENCORDT ,  Philipp RIEDEL ,  Thomas GEIGES

IPC: G01N35/10

Abstract: A method for aspirating a first liquid medium of two liquid media of different density from a sample container comprises: lowering a pipette of the laboratory automation device into the sample container until a pipette tip of the pipette has passed a lowering distance from the surface of the first liquid medium in the sample container, wherein the lowering distance is chosen, such that the pipette tip passes at least an aspiration volume in the sample container; aspirating liquid from the sample container during the lowering of the pipette by generating an underpressure in the pipette, wherein the first liquid medium is aspirated, and after the interface and the pipette tip pass each other, the second liquid medium of the two liquid media is aspirated; measuring a pressure in the pipette during the lowering of the pipette and detecting a position of the interface, when a slope of the pressure changes; when the lowering distance has been passed and no interface is detected, aspirating the aspiration volume from the first liquid medium and dispensing the aspiration volume of the first liquid medium into a further sample container.

公开(公告)号：US20190310273A1

公开(公告)日：2019-10-10

申请号：US16309067

申请日：2017-07-19

Applicant: TECAN TRADING AG

Inventor： Philipp OTT ,  Thomas GEIGES

IPC: G01N35/00 ,  G01N35/10 ,  B01L3/00 ,  B01L3/02 ,  B01L9/00

Abstract: The invention relates to a pipetting device having an exchangeable pipette tip for suctioning and discharging fluid volumes for use in automated laboratory systems. The invention relates to a pipetting device having a pipette tip detection unit and for detecting a pipette tip on a pipette device of this type. A detection unit detects whether a pipette tip is connected to the pipette tube or determines a characteristic feature of the connected pipette tip. The pipette tip forms at least one portion of a first electrode when the pipette tip is in electrical operative contact with the pipette tube and, e.g., a pipette tip holder, a contact for setting down the pipette tip holder or a working table over which the pipette tube can be moved forms at least one portion of a second electrode.

公开(公告)号：US20160121281A1

公开(公告)日：2016-05-05

申请号：US14895522

申请日：2013-06-06

Applicant: TECAN TRADING AG

Inventor： Thomas GEIGES

IPC: B01F13/08 ,  B01F3/08

CPC classification number: B01F13/08 ,  B01F3/0853 ,  B01F11/0082 ,  B01F13/0818 ,  B01F13/1022

Abstract: A device for mixing liquids in a container having an inner chamber with an enclosing wall and a bottom, an external encasement, an interspace and a transfer opening on top of the inner chamber. A mixing body located in the inner chamber comprises magnetizable material or a permanent magnet spaced from the wall. A coupling body movable in the interspace along a longitudinal axis and wall has magnetic working connection with the mixing body. The wall and the external encasement are transparent to magnetic fields. An acting permanent magnet or magnetizable material outside the external encasement, is in magnetic working connection with the coupling body. Moving the acting magnet or magnetizable material parallel to the longitudinal axis induces movement of the coupling body inside the interspace and moving the mixing body in the inner chamber, mixes liquids present in the inner chamber.

Abstract translation: 一种用于将液体混合在容器中的装置，该容器具有内室和封闭壁和底部，外部外壳，间隙和内腔顶部的传送开口。 位于内室中的混合体包括可磁化材料或与壁间隔开的永磁体。 沿着纵向轴线和壁在间隙中移动的连接体与混合体具有磁力加工连接。 墙壁和外部外壳对磁场是透明的。 外部外壳外部的作用永磁体或可磁化材料与联接体处于磁力加工连接。 使作用磁体或可磁化材料平行于纵向轴线移动，引起联接体在空隙内的移动，并使混合体在内腔中移动，从而混合内腔中存在的液体。