Hitachi High-Tech Corporation Patente

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There is provided an automatic analyzer that is capable of highly accurately detecting an abnormality at the time of aspiration even though the amount of a sample used for analysis is small. An automatic analyzer according to the present invention includes: a dispensing unit that aspirates a sample from a sample vessel that houses the sample; a control unit that controls the dispensing unit such that the dispensing unit aspirates the sample in a third predetermined amount greater than a first predetermined amount that is an amount of the sample used for analysis, the dispensing unit discharges the sample in a second predetermined amount to a predetermined site different from the sample vessel, and the dispensing unit discharges the sample in the first predetermined amount to a reaction vessel used for analysis; a detection unit that detects a pressure waveform in the dispensing unit; and a determining unit that determines faulty aspiration and/or clogging, based on a first waveform that is the pressure waveform when the dispensing unit aspirates the sample, the faulty aspiration being in a state in which the dispensing unit insufficiently aspirates the sample, the clogging being a state in which the sample is clogged in the dispensing unit.

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Provided are a blood collection device and a blood collection method enabling blood collection from any subject in the necessary amount for a test. The blood collection device is provided with a compression mechanism that independently compresses the base section and/or the middle section and the distal section of a finger, and collects blood from a puncture mark on the fingertip by repeatedly compressing the finger in the order of the base section and/or the middle section and the distal section. This blood collection device is characterized in that a period of time for compressing the distal section is longer than a period of time for compressing the middle section and/or a period of time for compressing the base section.

Provided is a mass spectrometer capable of ensuring a work space for maintenance or the like of a turbomolecular pump as compared with one in the related art. A mass spectrometer 10, 10A, 10B includes: an ion source 30; a vacuum chamber 40 into which a sample ion ionized by the ion source 30 is introduced; and a turbomolecular pump 50, 50A, 50B configured to maintain the vacuum chamber 40 in a vacuum. The turbomolecular pump 50, 50A, 50B is provided above the vacuum chamber 40 in a vertical direction.

A consumable storage vessel mount section has a first position and a second position. A consumable stored in a consumable storage vessel at the first position is used for a sample analysis. When the consumable storage vessel at the first position has been used, the consumable storage vessel at the second position is transferred to the first position. If it is determined that the consumable stored in the consumable storage vessel at the second position is unusable, the determination is made before starting the sample analysis whether it is possible to perform the sample analysis by using only the consumable stored in the consumable storage vessel at the first position, or it is necessary to use the consumables stored in the consumable storage vessels at the first and the second positions for performing the sample analysis. Hence, an interruption of an analysis that has been started using a first consumable resulting from unavailability of a second consumable owing to the validity term of the consumable in a standby state is avoided.

Provided is an automatic analyzer capable of accurately detecting an abnormality during aspiration even when an amount of a reagent used for analysis is small. An automatic analyzer includes: a dispensing mechanism configured to dispense a reagent from a reagent container to a reaction container; a control unit configured to control the dispensing mechanism to aspirate an amount of the reagent used for analysis, the amount including at least a second predetermined amount in addition to a first predetermined amount, then discharge the second predetermined amount of the reagent to the reagent container, and then discharge the first predetermined amount of the reagent to the reaction container; and a pressure sensor configured to measure pressure in the dispensing mechanism. The control unit determines whether the reagent is normally aspirated based on a measurement value of the pressure sensor when the dispensing mechanism aspirates the reagent. When the first predetermined amount is equal to or larger than a first predetermined amount threshold value that is predetermined in advance, the second predetermined amount is a constant value regardless of the first predetermined amount. When the first predetermined amount is smaller than the first predetermined amount threshold value, the second predetermined amount is larger than the constant value.

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An object of the present disclosure is to avoid a decrease in liquid height measurement accuracy due to deviation of a measurement device and lens aberration when measuring a biological sample having one or more component regions. A biological sample measurement device according to the present disclosure acquires a distortion coefficient and a liquid height conversion coefficient from a captured image of a calibrator having a pattern shape on a surface thereof, and corrects a liquid height of a sample based on the distortion coefficient and the liquid height conversion coefficient (see Fig. 1).

Provided is an automatic analyzer including: a vacuum bottle configured to receive a cleaner used in a cleaning mechanism; a vacuum tank connected to the vacuum bottle; a vacuum pump configured to evacuate the vacuum tank; and a cylindrical aspiration nozzle configured to discharge the used cleaner aspirated from the cleaning mechanism into the vacuum bottle, in which the aspiration nozzle vertically extends in the vacuum bottle, has a lower end surface that faces downward and is blocked with an end wall, and includes a discharge port that is formed sideways.

In order to provide an automatic analyzer capable of improving the measurement stability, the following configuration is adopted. A control unit acquires a photometric waveform for each of a plurality of reaction cells held on a reaction disk from a photometry signal based on a photometry trigger signal, and sets a photometric value calculation period based on a time domain, the photometry signal being obtained by executing photometry of the plurality of reaction cells in an empty state or in a state where blank water is accommodated, the photometry trigger signal representing that each of the plurality of reaction cells crosses an optical axis of a light source, and the time domain representing a flat waveform obtained regarding the photometric waveform for each of the plurality of reaction cells .

The purpose of the present disclosure is to provide a technique capable of stably gripping an object when the gripping mechanism is not suitable for gripping the object by sandwiching the object. A gripping device according to the present disclosure is provided with a gripping part that grips an object having a first hole and a second hole. The gripping part is provided with: a first rod-shaped member that positions the object by being inserted into the first hole; and a second rod-shaped member that prevents the object from rotating by being inserted into the second hole (see fig. 4B).

Provided are a column cartridge and an analyzer by which an operator can safely and easily replace a separation column while preventing an increase in cost and environmental burden. The column cartridge according to the present invention includes: a separation column having a built-in stationary phase; a heat transfer body configured to transfer heat from a heating mechanism to the separation column; and a housing configured to accommodate the separation column and the heat transfer body. A heat insulating layer is formed between the heat transfer body and the housing. The heat insulating layer is preferably a gap formed at a position excluding a plurality of support portions that support the heat transfer body.

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