公开(公告)号：US11525727B2

公开(公告)日：2022-12-13

申请号：US17258596

申请日：2019-07-09

申请人： TECAN TRADING AG

发明人： Philipp Ott ,  Luca Frei ,  Pascal Dieterich

IPC分类号： G01F23/26 ,  G01F23/263

摘要： A device for controlling an optical recognition unit with the help of a capacitive filling level measurement in liquid containers having a sensor with a measuring electrode, a conductive base plate suitable for arranging at least one liquid container or a carrier unit having at least one receptacle for receiving a liquid container, a sensor electronics unit that is connected to the measuring electrode and the base plate adapted to determine a capacitance between the measuring electrode and base plate, an evaluation unit, and a control unit for controlling the optical recognition unit, is disclosed.

公开(公告)号：US11161108B2

公开(公告)日：2021-11-02

申请号：US16307215

申请日：2017-07-21

申请人： TECAN TRADING AG

发明人： Philipp Ott

IPC分类号： B01L3/02 ,  G01N35/10 ,  G01F23/26 ,  B01L3/00 ,  G01D5/241 ,  G01N35/00 ,  B01L9/00 ,  B25J9/16

摘要： A pipetting device having a lube has an opening al one end for suctioning or discharging a sample fluid and can be operatively connected to a pressure generation device at the other end, a first electrode is formed on the pipetting device and forms a measuring capacitor together with a second electrode formed by at least one part of the sample fluid that can be received in the tube and that measuring capacitor is operatively connected to a measuring unit, and the measuring unit is designed to determine a volume of the suctioned or discharged sample fluid according to the capacity of the measuring capacitor, as well as having a first electrical contact that is designed to create an electrical connection with the working fluid, the first electrical contact can be electrically connected to the measuring unit via a low-resistance converter circuit.

公开(公告)号：US09910004B2

公开(公告)日：2018-03-06

申请号：US15168399

申请日：2016-05-31

申请人： Tecan Trading AG

发明人： Markus Schoeni ,  Philipp Ott ,  Lars Kamm ,  Paul Zbinden

IPC分类号： G01R27/08 ,  G01N27/22 ,  G01F23/00 ,  G01F23/26 ,  G01N35/10 ,  G01N1/10

CPC分类号： G01N27/22 ,  G01F23/0069 ,  G01F23/265 ,  G01F23/266 ,  G01N1/10 ,  G01N35/1011 ,  G01N2035/1018

摘要： A capacitively operating apparatus (100) has a container, a probe (3) movable into and/or out of the container, an input signal generator connectable to the probe (3) to provide an input signal (sin(t)) which produces at least one output signal (sout(t) in the probe (3), and a measuring apparatus (M) connectable to the probe (3) to tap the output signal (sout(t)) from the probe (3), and wherein the probe (3) is periodically chargeable and dischargeable, the output signal (sout(t)) corresponds to the time progression of a charging/discharging curve which is produced by the periodic charging and discharging of the probe (3). The apparatus (100) also includes a circuit module (10, 11) with two comparators for providing a first comparator output signal (PWM1) and a second comparator output signal (PWM2) from the output signal (sout(t)) and to correlate them with one another.

公开(公告)号：US11992833B2

公开(公告)日：2024-05-28

申请号：US17295624

申请日：2019-12-20

申请人： TECAN TRADING AG

发明人： Adrian Sager ,  Philipp Ott ,  Patrick Kinney ,  Hagen Reinhardt ,  Michael Keller ,  Sujata Iyer

IPC分类号： G01N35/10 ,  B01L3/00 ,  B01L3/02 ,  B03C1/01 ,  B03C1/32

CPC分类号： B01L3/0275 ,  B01L3/0279 ,  B03C1/01 ,  B03C1/32 ,  G01N35/10 ,  B01L3/0217 ,  B01L2200/023 ,  B01L2200/025 ,  B01L2200/026 ,  B01L2300/0832 ,  B01L2300/0858 ,  B01L2300/18 ,  B01L2400/0478 ,  G01N2035/103

摘要： A pipette tip extension attachable to a pipette tip having a proximal end, a distal end, and an exterior wall extending between the proximal end and the distal end is disclosed. The exterior wall has an outer side and an inner side and forms at the proximal end a reception aperture for inserting a pipette tip, and at the distal end a dispense aperture. The pipette tip extension further has an inner cavity, a distance element connected to the inner side of the exterior wall, and a constriction element.

公开(公告)号：US11925936B2

公开(公告)日：2024-03-12

申请号：US17113700

申请日：2020-12-07

申请人： TECAN TRADING AG

发明人： Adrian Sager ,  Philipp Ott

IPC分类号： B01L9/00 ,  B01L3/00

CPC分类号： B01L9/543 ,  B01L3/5085 ,  B01L2200/025 ,  B01L2300/0829

摘要： A combinable cavity tray for liquid handling is provided. The combinable cavity tray has at least one cavity for receiving a fluid and at least one passage for leading through a cavity of a second combinable cavity tray and/or for connecting to a pipetting apparatus. The at least one cavity of the combinable cavity tray is formed integrally. An assembly of combinable cavity trays having at least two combinable cavity trays, a method of manufacturing a combinable cavity tray and the use of a combinable cavity tray or of an assembly of combinable cavity trays for liquid handling are provided.

公开(公告)号：US11311872B2

公开(公告)日：2022-04-26

申请号：US16309058

申请日：2017-07-19

申请人： TECAN TRADING AG

发明人： Philipp Ott

IPC分类号： B01L3/02 ,  G01F23/263 ,  G01N35/10 ,  B01L3/00 ,  G01D5/241 ,  G01N35/00 ,  B01L9/00 ,  G01F22/00 ,  B25J9/16

摘要： The invention relates to a pipetting device having tube with an opening at one end for suctioning or discharging a sample fluid, and can be operatively connected to a pressure generation device at the other end. A first electrode is formed on the pipetting device that forms a measuring capacitor together with a second electrode formed by at least one part of the sample fluid and that can be received in the tube and the measuring capacitor is operatively connected to a measuring unit, and the measuring unit is designed to determine a volume of the suctioned or discharged sample fluid according to the capacity of the measuring capacitor. The invention also relates to a fluid processing system having a pipetting device of this type, as well as a method for determining a processed fluid volume during pipetting with a pipetting device of this type.

公开(公告)号：US11719355B2

公开(公告)日：2023-08-08

申请号：US17276731

申请日：2019-09-20

申请人： TECAN TRADING AG

发明人： Philipp Ott

IPC分类号： F16K37/00 ,  F16K31/06 ,  B01L3/02 ,  G01F11/12 ,  G01F13/00

CPC分类号： F16K31/0675 ,  B01L3/0293 ,  F16K37/0083 ,  G01F11/12 ,  G01F13/006 ,  B01L2400/0666

摘要： A method for controlling a magnetic valve and particularly a method for dispensing and/or aspirating a volume of liquid as well as a corresponding dispenser/pipetting apparatus is disclosed. The method for controlling a magnetic valve has measuring a capacitance at the magnetic valve and determining a position of a plunger based on the measured capacitance. The method for dispensing or aspirating a volume of liquid has controlling a flow of a system fluid by a magnetic valve located between a pressure source and a dispenser/pipetting tip, dispensing or aspirating a volume of liquid through an exterior opening of the tip dependent on the flow of the system fluid, wherein controlling the flow and determining a flow time in dependence of the volume of liquid to be dispensed or aspirated, and controlling the magnetic valve is held open for the duration of the flow time.

公开(公告)号：US11565249B2

公开(公告)日：2023-01-31

申请号：US16954414

申请日：2018-12-12

申请人： TECAN TRADING AG

发明人： Philipp Ott

IPC分类号： G01N35/10 ,  B01L3/02 ,  G01N11/04 ,  G01N13/02

摘要： A pipetting apparatus having a pipette tube with a first end provided with an opening for aspirating and/or dispensing of a sample fluid and a second end operationally connected to a pressure generating means. The pipetting apparatus has at least one measuring unit adapted to determine at least one measurement value of the sample fluid based on the aspirating and/or dispensing of the sample fluid and to provide a sample fluid measurement signal representative thereof to an output of the measuring unit. The pipetting apparatus also has a control circuit operationally coupled to the output of the measuring unit and the input of the pressure generating means, the control circuit is configured to control said pressure generating device based on the sample fluid measurement signal.

公开(公告)号：US11298695B2

公开(公告)日：2022-04-12

申请号：US16309325

申请日：2017-07-19

申请人： TECAN TRADING AG

发明人： Philipp Ott

IPC分类号： B01L3/02 ,  G01N35/10 ,  G01F23/263 ,  B01L3/00 ,  G01D5/241 ,  G01N35/00 ,  B01L9/00 ,  G01F22/00 ,  B25J9/16

摘要： The present invention relates to pipette tips for connecting to a pipette tube of a pipetting device that is used for taking up and dispensing fluids. A pipette tip is shaped as a long tube that forms a pipette body with an opening on one of its ends and the other end is designed to connect to the pipette tube. The pipette tip is characterised in that it has an electrode as a volume measuring electrode of a measuring capacitor. The present invention further relates to pipetting devices with a pipette tip, methods for determining the volume of a fluid sample in such a pipette tip, methods for recognising such a pipette tip on a pipetting device, methods for producing such a pipette tip, uses for such a pipette tip and a set of pipette tips.

公开(公告)号：US10309820B2

公开(公告)日：2019-06-04

申请号：US14806036

申请日：2015-07-22

申请人： TECAN Trading AG

发明人： Philipp Ott ,  Lars Kamm ,  Markus Schöni ,  Remo Keller ,  Paul Zbinden

IPC分类号： G01N35/10 ,  G01F23/26 ,  G01F23/00

摘要： A method and device for distinguishing between a contacting of foam (2) or of liquid (1) in a liquid container (5) of a device (100) by employing a capacitively operating measuring device (M) having a sensor (3) which can be moved up and down in the liquid container (5), in which at least one output signal (sout(t)) is processed by the measuring device (M).