Olympus Optical Company, Ltd.

Masahiko Sakurada

Sugio Manabe

Taiichi Banno

Ryoichi Orimo

Kevin Galle

Nagahiro Gocho

Yasuo Hattori

Hideaki Okamura

Kazumi Miyaji

Masaharu Kame

An automatic analyzing apparatus for effecting chemical analyses for various sample liquids such as blood, urine, and the like, comprising a sample delivery pump for metering a sample liquid into a reaction cuvette, a reagent delivery pump for delivering to the reaction cuvette a given amount of a given reagent selected from a plurality of reagents contained in a reagent cassette, to form a test liquid, a feed mechanism for successively supplying reaction cuvettes along a circular reaction line, a plurality of photometering sections arranged along the reaction line for effecting a plurality of photometric and/or nephelometric and/or fluorometric measurements for each test liquid at different time instances to produce a plurality of photometric results, and circuitry for receiving the photometric results and selecting therefrom given quantitative analytical data of a given test item.

Automatic analyzing apparatus

An automatic analyzing apparatus for automatically effecting chemical analysis on a sample of blood, urea or the like dependent on measurement items by measuring the light absorption degree of a reaction liquid through a reaction vessel, comprising a reaction liquid photometric unit, a photometric unit independent of the reaction light photometric unit and operative to measure beforehand the light absorption degree of the reaction vessel per se or the reaction vessel containing a reagent or dilute liquid, and means for correcting the light absorption degree of the reaction liquid measured at the reaction liquid photometric unit on the basis of the light absorption degree of the reaction vessel per se or the light absorption degree of the reaction vessel containing the reagent or dilute liquid measured at the independent photometric unit.

Automatic chemical analyzer

A method of enhancing the accuracy and reliability of a chemical analysis, wherein a reaction is carried out by combining a sample liquid with at least one reagent to form a test liquid and the test liquid is photometrically scrutinized a plurality of times over an extended period of time to derive a number of photometric values. The derived values are then stored and a plurality of the stored photometric values are preliminarily selected from a given time frame, wherein the plurality of preliminarily selected values are less than a total number of stored photometric values. Successive preliminarily selected photometric values are compared with at least one predetermined standard to derive a comparison result and upon indication that useful data cannot be calculated from the preliminarily selected photometric values, a secondarily selecting step of selecting at least one photometric value from all of the stored photometric values, which were not preliminarily selected, is used to derive an analytical result which represents a concentration of a chemical substance in the test liquid or an activity of the test liquid.

Method of analyzing chemical substances

An automatic analyzing apparatus comprising a plurality of reagent vessels adapted to be inserted into a reagent vessel holder and a detector for photoelectrically discriminating the reagent vessel holder in response to an analysis item necessary for examining an organic ability and the reagent vessels corresponding to different analysis items.

An automatic chemical analyzing apparatus comprising means for feeding successive reaction vessels along a circular reaction line, a sample delivery pump for delivering a given amount of sample liquids to be tested into the reaction vessels, a reagent delivery pump for delivering a given amount of reagent (corresponding to a particular test item to be measured) selected from a plurality of reagents, a first photometering means provided along the circular reaction line for monitoring the reaction condition of a test liquid in the reaction vessel on the reaction line, a second photometering means arranged in a precise photometering section positioned underneath the reaction line, means for transporting the reaction vessel from the reaction line into the precise photometering section after the test liquid in the relevant vessel has been monitored to reach a given reaction condition.

An automatic analytical apparatus which comprises a single reaction line and in which reaction vessels are carried step by step along the reaction line, a sample and reagent are delivered to the reaction vessel during each carrying step to obtain a test liquid, and the test liquid thus obtained is subjected to a photometric operation, characterized by comprising (a) sample and reagent delivering means for delivering the sample and reagent into a plurality of reaction vessels in succession, respectively, during each carrying step of the reaction vessel, and (b) means for subjecting the photometric operation to a plurality of test liquids at separate positions at the same time during each carrying step of the reaction vessel.

Automatic analytical apparatus

An automatic analysis apparatus which makes use of an exhaustive type reaction vessel, comprising a movable reaction line provided along its overall length with an engage portion operative to be engaged with the reaction vessel, a reaction vessel supply station, a reaction liquid measuring station and a reaction vessel discarding station, all of the stations being arranged along the reaction line in the order as mentioned above.

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Machida, Japan

Masahiko Sakurada