Hitachi-high-technologies Corporation

Hitachi, Ltd.

Roche Diagnostics Operations, Inc.

Yukie Tokiwa

Kyoko Imai

Shigeki Matsubara

Taku Sakazume

Kantaro Suzuki

Noriko Maeda

Tomonori Mimura

Toshinari Sakurai

Shinya Matsuoka

Noriko Iizumi

So Oguchi

Yasushi Niiyama

Lotterer Siegfried

Krause Friedemann

A flow cell for electrochemical measurement which introduces a sample solution, applies a voltage between a working electrode and a counter electrode to analyze the sample solution electrochemically, discharges the sample solution, and performs the electrochemical measurement continuously. The flow cell includes a unit which measures a value of a current flowing between electrodes at the time of applying a voltage, a unit which records the measured current value, a unit which compares the recorded current value with a current value set separately as a determination standard, and a unit which determines whether the current value measured at a cycle of a determination target and the recorded current value is normal by the comparison.

Electrochemical measurement device

An automatic analyzer and an automatic analyzing system to identify samples and reagents used in the analyzer and members used in measurement of at least two objects in common: system reagents or buffer solution; sensor parts; probes; nozzles; chips; dispensing cups; tubes; ISE electrodes; detectors; deionized water; and waste, and to unify management of identification information thereof and a measurement result.

Automatic analyzer

A method of pipetting an accurate quantity of liquid comprising the steps of drawing water into a pipetting chip () from a liquid container (), drawing air into said tip first slowly at a first rate and then quickly at a second rate to turn said drawn water into a mist of drops in said tip () and increase the relative humidity of the air in said tip (), waiting a preset time period, and drawing a tested liquid into said tip (). This makes the quantity of vapor of the tested liquid in said tip () very small and constant and thus the accurate quantity of tested liquid can be pipetted.

Liquid dispensing method and device

In an automatic analyzer, necessary setup works are displayed prior to analysis operation. The present invention can realize an automatic analyzer which can be used by an inexperienced operator to execute all necessary setup works. A maintenance button, data erase button, reagent status button, reagent prime button, calibration button and QC button are displayed on a system viewing screen displayed on an operation part. The display colors of the maintenance button or the like are changed (for example, the display color is changed to red, yellow or the like) in response to the status of the automatic analyzer in order to recognize necessary setup works prior to analysis operation for an operator.

An automatic analysis apparatus containing a plurality of measurement channels used to measure reaction occurred in a reaction container into which both a reagent and a sample are entered, is arranged by employing: a data processing unit for producing calibration information, first quality control information, and second quality control information; the calibration information every measurement channel being produced based upon calibration data obtained by measuring a calibration sample, the first quality control information related to a quality for each of the measurement channels being produced based upon measurement data acquired by measuring a quality controlling sample by the respective measurement channels, and also the second quality control information related to an entire quality of the plural measurement channels being produced based upon the measurement data; and a display unit for simultaneously displaying the calibration information, the first quality control information, and the second quality control information given by the data processing unit on a single screen.

Automatic analysis apparatus, managing apparatus for analysis apparatus, and program product for managing analysis apparatus

After attaching a disposable pipette tip to an end of pipetting probe, which is held by a movable holder, humidity in the pipette tip is increased before a pipetting operation of a sample or a reagent. The pipette tip is transferred to a high humid chamber provided with a warmer, and high humid air is introduced into the pipette tip. Subsequently, the pipetting operation of the sample or the reagent is performed. Accordingly, an exact amount of the sample or the reagent can be supplied to a reaction vessel.

Growing community of inventors

Hitachinaka, Japan

Yukie Tokiwa