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8080202 |
Component separating device and chemical analysis device using the same
A vibrator has a large strength of a standing wave even with a low driving voltage, thereby improving the accuracy of component separation. A device according to the present invention includes a...
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8026104 |
Transient decay amperometry
A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a...
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7910074 |
System and method for continuously transferring and processing liquids
A liquid transfer system for transferring liquid from a plurality of containers to a plurality of destinations comprises a plurality of inlet valves. Each inlet valve is operable between an open...
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7910073 |
Microfluidic system
The microfluidic system is constituted of modules that comprise one microfluidic unit and one corresponding electric control unit each and that are retained on a rear panel unit next to each other...
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7850921 |
Dispenser, reagent dispenser and sample analyzer
The present invention is to present a dispenser which is capable of heating a liquid to an approximately constant temperature in the same time regardless of an aspiration amount of the liquid. The...
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7780830 |
Electro-wetting on dielectric for pin-style fluid delivery
A method of delivering fluid can include using electro-wetting effects to pick-up, transport, and/or deliver discrete volumes of fluid. Voltage can be applied across a fluid contact area having a...
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7775246 |
Bio-ejector filling stops to facilitate efficient filling
Disclosed is a small volume, liquid dispenser having particular application in the analytical fields. The liquid dispensers can be quickly and reliably filled to a predetermined volume without...
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7303728 |
Fluid dispensing device
The invention concerns a fluid dispensing device, characterised in that it comprises: a dispensing member (10) including: a conduit (42, 44) allowing through a transporting liquid (52), a valve...
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7244397 |
Digital burette and method for displaying the dose volume in said digital burette
The invention relates to a digital burette having a manual drive for suctioning and applying an adjustable dose volume, a gear unit connected downstream and a digital display device controlled...
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6841129 |
Liquid dispensing and/or aspirating device to be operated manually repeatedly
A liquid dispensing and/or aspirating device to be operated manually repeatedly, having a controlling device, a motor drive, control electronics, a manually actuatable actuating element, and a...
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6551558 |
Method and device for liquid transfer with an analysis apparatus
The invention concerns a liquid transfer device for an analysis apparatus with a liquid transfer cannula (5) and a capacitive liquid level detector to detect the immersion of the liquid transfer...
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6328934 |
Device for detection of when a test probe gets into contact with a liquid surface
A device for detection of when at test probe of conducting material contacts a liquid surface includes a test probe of conducting material. The test probe is electrically screened by an insulated...
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6322752 |
Method and apparatus for aspirating and dispensing liquids
A method and apparatus for aspirating and dispensing precise volumes of liquid, e.g. whole blood, comprises an aspiration probe or needle having an internal volume precisely equal to a desired...
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6299841 |
Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette
A bilaterally symmetrical lightweight hand holdable battery powered microprocessor controlled electronic pipette including an axially elongated hollow housing having a vertically extending...
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6254832 |
Battery powered microprocessor controlled hand portable electronic pipette
A battery powered, microprocessor controlled portable electronic pipette, comprising a hand holdable housing supporting a battery, a linear actuator for driving a plunger lengthwise in a cylinder...
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6218193 |
Precision small volume fluid processing apparatus and method
A high precision, small volume fluid processing system employs open ended capillary tubes to meter, aliquot and mix small volumes of sample fluid and reagents. The system has an automatic mechanism...
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5855851 |
Apparatus for trasferring liquid having liquid level sensing function
The present invention relates to an apparatus for transferring a liquid capable of accurately performing detection of a liquid level using a pipetting probe even in a case of a high electric...
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5785926 |
Precision small volume fluid processing apparatus
A high precision, small volume fluid processing system employs open ended capillary tubes to meter, aliquot and mix small volumes of sample fluid and reagents. The system has an automatic mechanism...
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5582798 |
Volume sensing device
A volume sensing device for determining the volume of liquid present in a standard plastic disposable pipette during a pipetting operation, which operation can be an aspiration or dispensing of...
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5536474 |
System for transferring samples under pressure
Fluids kept under high pressure in one or several balancing cells (C1, C2) inside a thermostat-controlled enclosure (14) at about 200° C. are extracted by introducing into the enclosure a sampling ...
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5304347 |
Liquid transfer device for an analysis unit
Liquid transfer device for an analysis unit with a capacitive liquid level detector (10) for detecting the dipping of a liquid transfer needle (5) into an analysis liquid (4). More reliable...
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5045286 |
Device for aspirating a fixed quantity of liquid
A device for injecting a fixed quantity of sample liquid is provided with a unit for aspirating and injecting sample liquid. The sample aspirating and injection unit has a nozzle connecting...
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5002737 |
Electrically operated pipette
The invention relates to an electrically operable pipette comprising a body member with upper and lower portions and a removable flanged cylinder assembly coupled to the lower portion of the body...
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4988481 |
Electrical pipette
The invention relates to a pipette in which a piston is reciprocated in a cylinder by means of an electric motor. The pipette is preferably provided with a volume adjustment nut comprising locking...
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4957706 |
Device for preserving sterility during sampling from culture medium containers
A device for preserving sterility during the taking of samples for analysis from culture medium containers. This device comprises a holder containing a sampling chamber which encloses a sliding...
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4944922 |
Quantitative dispenser for a liquid
A quantitative dispenser for a liquid includes a pipette having a downwardly directed nozzle which serves to pick up and deliver a predetermined quantity of a liquid and a mechanism for moving the...
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4897244 |
Apparatus and methods for analyzing fluids
Apparatus and methods for analyzing fluid such as blood serum. A probe used for transferring some of the fluid to a testing station causes a change in circuit capacitance when the probe contacts...
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4818492 |
Capacitive liquid level sensor for automatic chemical analyzer
A capacitive liquid level sensor for an automatic chemical analyzer, wherein a pipetting tube approaches a liquid level of the sample to be analyzed and is electrically connected to one terminal of...
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4237095 |
Tip vessel for use in connection with a dosage pipette
A disposable pipette tip vessel intended for use in connection with a dosage pipette. The lowest point of the tip vessel has a hole for suction of the liquid to be pipetted into the tip vessel and,...
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4101283 |
Disposable reagent container and actuation mechanism
A pipetter diluter for sampling and delivery of a volumetric material. The pipetter diluter has a sampling and delivery tip connected to a cylindrical container. A threaded plunger is rotated by...
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3713774 |
METHOD AND APPARATUS FOR TITRATING LIQUIDS
Apparatus for dosing from a titrant reservoir and transferring or metering discrete quantities of the titrant to an unknown sample. An electric analog signal is generated in response to liquid...
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3567398 |
SEMI-AUTOMATIC PIPETTING AND DILUTER DEVICE
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3184122 |
Semi-automatic dilution pipette
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2979385 |
Analyzer and method of control
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