JP5124497B2 - Automatic analyzer - Google Patents

Description

  The present invention relates to an automatic analyzer for performing qualitative / quantitative analysis of biological samples such as blood and urine, and in particular, has a reaction container for reacting a biological sample and a reagent, and aspirates and discharges a cleaning solution for washing the reaction container. The present invention relates to an automatic analyzer having a cleaning nozzle.

  In an automatic analyzer for analyzing and processing a large number of biological samples, a reaction container containing a reaction solution is washed and used repeatedly at the end of one measurement in order to improve processing efficiency and reduce analysis costs. This is to prevent other specimens from being mixed into the reaction solution being measured and causing erroneous measurement.

  In the conventional apparatus configuration, as disclosed in Patent Document 1, the biological sample in the reaction container that has been measured is sucked and discarded with a nozzle, and the reaction container cleaning reagent is discharged and sucked into the reaction container with a dedicated nozzle. And washed. The reaction container cleaning mechanism includes a cleaning reagent nozzle that discharges and sucks the reaction container cleaning reagent into the reaction container, a suction nozzle that sucks the reagent in the reaction container and the reaction liquid of the reagent and the biological sample, and the like.

  However, these cleaning reagent nozzles and suction nozzles were not particularly cleaned at the tip of the nozzle, so that the biological sample attached to the reaction container was cleaned by repeatedly using the cleaning nozzle in multiple reaction containers. It adhered to the nozzle and caused it to fall into another reaction container, causing contamination between samples.

  In addition, the conventional cleaning mechanism repeatedly improves the throughput by repeatedly performing a cleaning process on a large number of reaction vessels. However, the sample adhering to the nozzle tip and the reaction vessel cleaning reagent are crystallized, which causes nozzle clogging. There was concern.

Japanese Patent No. 2786767

  As described above, the reaction container cleaning mechanism in the conventional automatic analyzer does not clean the nozzle that discharges and sucks the cleaning liquid, so that depending on the conditions, the sample attached to the cleaning nozzle may be in another reaction container. There was a concern that contamination would occur between specimens.

  Further, since the cleaning nozzle repeats the attachment and drying of the cleaning reagent and the sample, the deposits are crystallized and nozzle clogging occurs. There is a concern that contamination may occur when the reaction container after use becomes insufficient due to this nozzle clogging.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic analyzer that has a configuration for cleaning the cleaning mechanism itself in order to perform cleaning without contamination, and that does not reduce the overall throughput even if the cleaning process of the cleaning mechanism is added. To do.

  The configuration of the present invention for achieving the above object is as follows.

  A reaction container for mixing the biological sample and the reagent, a washing station for holding the reaction container after the analysis, and a washing reagent nozzle for discharging and aspirating the washing reagent for washing the reaction container on the washing station; An automatic analyzer comprising: a suction nozzle for sucking a cleaning residual liquid after cleaning by the cleaning reagent nozzle; and a nozzle cleaning mechanism for cleaning the cleaning reagent nozzle and / or the suction nozzle.

  The reaction container containing the reaction solution that has been analyzed is transported to a washing station. A nozzle cleaning mechanism is disposed in the vicinity of the cleaning station. The cleaning reagent nozzle discharges and sucks the cleaning reagent into the reaction vessel placed on the cleaning station. Thereafter, the suction nozzle sucks the remaining liquid in the reaction container to wash the reaction container. The suction nozzle or cleaning nozzle that is not used can wash away the reaction solution and cleaning reagent attached by the nozzle cleaning mechanism, thus preventing the crystal from adhering to the tip of the nozzle or reducing its occurrence frequency, and the cleaning mechanism. The nozzle clogging can be prevented or the frequency of occurrence thereof can be reduced.

  Here, the suction nozzle and the cleaning nozzle or / and the cleaning station and the nozzle cleaning mechanism move together. By operating these as one unit, it is possible to perform the other cleaning while one of the cleaning reagent nozzle and the suction nozzle is performing the cleaning operation, and analysis without reducing the throughput of the entire apparatus becomes possible.

  Further, the cleaning reagent nozzle and the suction nozzle may sequentially perform the discharge and suction of the cleaning reagent, or may perform the discharge and suction simultaneously.

  In the nozzle cleaning mechanism, each of the suction nozzle and the cleaning reagent nozzle may have a dedicated nozzle cleaning mechanism, or two nozzles may share one nozzle cleaning mechanism. When the nozzle cleaning mechanism is shared, a compact cleaning mechanism capable of cleaning one nozzle may be provided, or a large nozzle cleaning mechanism capable of simultaneously cleaning two nozzles may be used.

  In addition, if a pipetting mechanism that can dispense reagents and samples to the washed reaction vessel in the washing station is provided nearby, analysis can be started immediately on the reaction vessel after washing, reducing analysis time. It also leads to.

  By providing the nozzle cleaning mechanism for cleaning the nozzle of the cleaning mechanism in the analyzer, it is possible to prevent the crystals of the reagent and the reaction liquid from adhering to the nozzle of the cleaning mechanism, and to provide a more reliable analyzer. .

Chemical analyzer flat layout. The top view and side view of a nozzle cleaning mechanism. The side view of the cleaning reagent nozzle which has a some nozzle. The top view of the washing mechanism in the 1st example. The top view of the washing mechanism in the 2nd example. The top view of the washing mechanism in the 3rd example. The top view of the washing mechanism in the 4th example. The top view of the washing mechanism in the 5th example. The top view of the washing | cleaning mechanism which has a nozzle washing | cleaning mechanism which wash | cleans a washing | cleaning reagent nozzle and a suction nozzle simultaneously.

  FIG. 1 is a plan configuration diagram of an analyzer according to the present invention, which has a function of qualitatively and quantitatively analyzing a specific chemical component contained in a biological sample or a biologically derived content.

  The analysis process will be described with reference to FIG.

  First, a specimen container in which a biological sample such as blood is enclosed is set at the specimen container holding position 1 automatically by a specimen transport device or by hand by an operator.

  A biological sample is dispensed into the reaction container 6 by the sample pipetting mechanism 4, and a reagent corresponding to the analysis item stored in the reagent container 3 on the reagent cooler 2 is sent to the reaction container by the reagent pipetting mechanism 5. It is dispensed.

  The reaction conditions of the biological sample and the reagent in the reaction vessel are controlled in the incubator 7 by controlling the environmental conditions such as the ambient temperature, and the chemical reaction is promoted by adding a stirring operation or the like as necessary.

  The chemical reaction is repeated once or multiple times depending on the analysis item.

  When one measurement is completed, the reaction vessel is washed by the washing mechanism 8, and then a reagent necessary for the next chemical reaction step is dispensed into the reaction vessel by the reagent pipetting mechanism, and the reagent dispensed in the reaction vessel is incubator. The chemical reaction is promoted.

  When the required number of chemical reactions are completed, the reaction vessel performs light amount measurement by spectroscopy, absorption, or fluorescence in the optical measurement unit 9, and analyzes the components in the specimen from the measurement results.

  When dispensing biological samples and reagents into reaction vessels, washing reaction vessels with a washing mechanism, promoting chemical reactions with an incubator, and measuring light intensity with an optical measurement unit, the reaction vessel is operated It is conveyed by the reaction container conveyance mechanism 10 to the mechanism or unit that performs the above.

  The process of washing the reaction vessel will be described with reference to FIG. 2A is a top view of the cleaning mechanism, and FIG. 2B is a side view of the cleaning mechanism.

  The cleaning mechanism includes a cleaning station 21 in which a reaction container to be cleaned is installed, a cleaning container nozzle 22 that discharges or sucks a reaction container cleaning reagent into the reaction container, and a reagent and a reaction liquid in the reaction container. And a nozzle cleaning mechanism 24 for cleaning the nozzles constituting the cleaning reagent nozzle and the suction nozzle. The nozzle cleaning mechanism is formed with a cleaning mechanism nozzle 26 that discharges the nozzle cleaning liquid 25.

  Although not shown in FIGS. 2 (a) and 2 (b), the cleaning mechanism includes a moving mechanism for adjusting the relative positions of the cleaning reagent nozzle and the reaction vessel on the cleaning station, and the cleaning reagent nozzle and the nozzle cleaning mechanism. A moving mechanism for adjusting the relative position of the suction nozzle, a moving mechanism for adjusting the relative position of the reaction vessel on the cleaning station, and a moving mechanism for adjusting the relative position of the suction nozzle and the nozzle cleaning mechanism are formed.

  After the relative position between the reaction container installed in the cleaning station and the cleaning reagent nozzle is adjusted, the reaction container cleaning liquid is discharged into the reaction container from the cleaning nozzle, or is discharged and sucked.

  After the above operation is completed, the relative positions of the cleaning reagent nozzle and the nozzle cleaning mechanism are adjusted, and the cleaning reagent nozzle is cleaned by discharging the nozzle cleaning liquid from the cleaning mechanism nozzle. In addition, after the relative position between the reaction container and the suction nozzle installed in the cleaning station is adjusted, the reagent and the reaction liquid in the reaction container are sucked with the suction nozzle.

  After the above operation is completed, the relative position between the suction nozzle and the nozzle cleaning mechanism is adjusted, and the nozzle cleaning liquid is discharged from the cleaning mechanism nozzle to clean the suction nozzle.

  In FIG. 2, the cleaning reagent nozzle and the suction nozzle are formed from a single nozzle, but may be configured by a plurality of nozzles.

  For example, as shown in FIG. 3, the cleaning reagent nozzle is provided with a nozzle for discharging the reagent and a nozzle for sucking, and the cleaning reagent is discharged and sucked at the same time, thereby forming the cleaning reagent flow 31 in the reaction container. The cleaning effect of the container can be improved.

  FIG. 4A and FIG. 4B show a first embodiment.

  In the present embodiment, the cleaning reagent nozzle 41 and the suction nozzle 42 are integrally formed on a moving base 43 that moves directly, and a nozzle cleaning mechanism 44 that cleans the cleaning reagent nozzle and a nozzle cleaning that cleans the suction nozzle. The two nozzle cleaning mechanisms of the mechanism 45 are arranged at equidistant positions with the cleaning station interposed therebetween.

  The nozzle cleaning mechanism for the cleaning reagent nozzle is arranged on the moving path of the cleaning nozzle, and the distance 46 between the cleaning mechanism for the cleaning reagent nozzle and the reaction container on the cleaning station is the distance 47 between the cleaning nozzle and the suction nozzle. It is installed to be the same.

  The nozzle cleaning mechanism for the suction nozzle is arranged on the moving track of the suction nozzle, and the distance 48 between the nozzle cleaning mechanism for the suction nozzle and the cleaning station is set to be the same as the distance between the cleaning nozzle and the suction nozzle. Yes.

  With the above arrangement, as shown in FIG. 4A, the cleaning of the reaction vessel by the cleaning nozzle and the cleaning of the suction nozzle by the suction nozzle nozzle cleaning mechanism can be performed simultaneously. Further, as shown in FIG. 4B, the cleaning of the reaction container by the suction nozzle and the cleaning of the cleaning nozzle by the nozzle cleaning mechanism for the cleaning nozzle can be performed simultaneously.

  With the above configuration, it is possible to shorten the cleaning operation time while efficiently preventing clogging of the cleaning nozzle.

  FIG. 5A to FIG. 5C show a second embodiment.

  In the present embodiment, the cleaning reagent nozzle 51 and the suction nozzle 52 are integrally formed on a moving base 53 that moves linearly, and includes a nozzle cleaning mechanism 54 that cleans the cleaning reagent nozzle and the suction nozzle. .

  The nozzle cleaning mechanism intersects both the movement path of the cleaning reagent nozzle and the movement path of the suction nozzle, and the distance 55 between the cleaning reagent nozzle and the suction nozzle and the distance 56 between the nozzle cleaning mechanism and the reaction vessel installation stage are the same. Thus, a nozzle cleaning mechanism is installed.

  After washing the reaction container with the washing reagent nozzle, the suction nozzle is moved to the reaction container and the washing reagent nozzle is moved to the nozzle washing mechanism at the same time as shown in FIG. The container cleaning and the cleaning nozzle cleaning by the nozzle cleaning mechanism are performed simultaneously.

  After the completion of both operations, as shown in FIG. 5C, the suction nozzle is moved to the nozzle cleaning mechanism to perform nozzle cleaning of the suction nozzle set.

  Cleaning of the reaction container with the suction nozzle and cleaning of the cleaning reagent nozzle with the nozzle cleaning mechanism can be performed at the same time, and the operation time required for the cleaning mechanism can be shortened.

  Since the cleaning of the reaction container by the cleaning reagent nozzle and the cleaning of the suction nozzle by the nozzle cleaning mechanism are performed at different timings, the operation required for the cleaning operation of the reaction container becomes longer than that of the first embodiment, while the nozzle cleaning mechanism Can be reduced from two to one, and a compact and inexpensive manufacturing apparatus can be provided.

  In FIG. 5C, the reagent pipetting mechanism 58 can dispense the reagent into the reaction container through the space 57 formed above the reaction container during the suction nozzle cleaning. The operation of moving the container to the reagent dispensing position can be omitted, and the time required for analysis can be shortened.

  In the first and second embodiments, the cleaning reagent nozzle and the suction nozzle are shown as an integrated unit as a nozzle unit. However, the cleaning unit and the nozzle cleaning mechanism are integrally structured and moved simultaneously. The apparatus provided with.

  When the cleaning unit is provided, the cleaning unit moves on the linear movement shaft, and the cleaning station and the nozzle cleaning mechanism can access the cleaning reagent nozzle and the suction nozzle.

  FIG. 6A and FIG. 6B show a third embodiment.

  The cleaning reagent nozzle 61 and the suction nozzle 62 are integrally formed on a moving base 64 that rotates about a rotating shaft 63.

  In addition, it has two nozzle cleaning mechanisms, a nozzle cleaning mechanism 65 that cleans the cleaning reagent nozzle and a nozzle cleaning mechanism 66 that cleans the suction nozzle.

  The nozzle cleaning mechanism for the cleaning reagent nozzle is on the moving track of the cleaning nozzle set, the angle formed by the cleaning reagent nozzle and the suction nozzle with respect to the rotation axis, the nozzle cleaning mechanism for the cleaning reagent nozzle and the cleaning station on the rotation axis. Install them so that the angles they make are the same.

  The nozzle cleaning mechanism for the suction nozzle is on the moving track of the suction nozzle, and the angle formed by the cleaning nozzle and the suction nozzle with respect to the rotation axis, and the nozzle cleaning mechanism and the cleaning station for the suction nozzle with respect to the rotation axis. Install so that the corners of the arms are the same.

  Further, when the suction nozzle is positioned in the suction nozzle cleaning mechanism, the cleaning station and the cleaning reagent nozzle nozzle cleaning mechanism are positioned in the same rotational direction with respect to the suction nozzle as viewed from the rotation axis direction.

  With this configuration, as shown in FIG. 6A, the cleaning of the reaction container by the cleaning reagent nozzle and the cleaning of the suction nozzle by the suction nozzle nozzle cleaning mechanism can be performed simultaneously. In addition, as shown in FIG. 6 (b), the reaction container can be cleaned by the suction nozzle and the cleaning reagent nozzle can be cleaned by the nozzle cleaning mechanism for the cleaning reagent nozzle at the same time. Time can be shortened.

  FIG. 7A to FIG. 7C show a fourth embodiment.

  The cleaning reagent nozzle 71 and the suction nozzle 72 are integrally formed on a moving base 74 that rotates about a rotation shaft 73. In addition, a common nozzle cleaning mechanism 75 for cleaning the cleaning reagent nozzle and the suction nozzle is provided.

  The nozzle cleaning mechanism is installed so as to intersect the movement path of the cleaning reagent nozzle and the movement path of the suction nozzle, and the angle formed by the cleaning reagent nozzle and the suction nozzle with respect to the rotation axis, the nozzle cleaning mechanism and the cleaning station are A nozzle cleaning mechanism is installed so that the angle formed with respect to the rotation axis is the same.

  With this configuration, the cleaning reagent nozzle dispenses the reagent into the reaction container in the arrangement of FIG. 7A, while the suction nozzle sucks the cleaning reagent in the reaction container in the arrangement of FIG. Since the cleaning reagent nozzle can be cleaned by the nozzle cleaning mechanism, efficient cleaning can be performed.

  Since the cleaning of the reaction container by the cleaning reagent nozzle and the cleaning of the suction nozzle are performed at different times, the operation required for the cleaning operation of the reaction container becomes longer compared to the third embodiment, while the nozzle cleaning mechanism By reducing the number from two to one, a compact and inexpensive manufacturing apparatus can be provided.

  Further, as shown in FIG. 7 (c), the analysis reagent is dispensed into the reaction container by the reagent pipetting mechanism 77 through the space 76 that is formed above the reaction container when the suction nozzle is washed, so that the reaction container transport mechanism can The operation of moving the reaction container to the reagent dispensing position can be omitted, and the time required for analysis can be shortened.

  FIG. 8A to FIG. 8C show a fifth embodiment.

  In this embodiment, the cleaning station 81 and the nozzle cleaning mechanism 82 are integrally formed on a moving base 84 that rotates about a rotation shaft 83.

  The cleaning reagent nozzle 85 and the suction nozzle 86 are installed so as to cross both the movement trajectory of the reaction container and the movement trajectory of the nozzle cleaning mechanism, and the angle formed by the cleaning reagent nozzle and the suction nozzle with respect to the rotation axis It is installed so that the angle between the station and the cleaning mechanism is the same.

  After the cleaning of the reaction container with the cleaning reagent nozzle is completed, the reaction container is moved to the position of the suction nozzle as shown in FIG. 8B, and the reaction container is cleaned with the suction nozzle. Clean the reagent nozzle. Thereafter, as shown in FIG. 8C, the nozzle cleaning mechanism is moved to the position of the suction nozzle, and the suction nozzle is cleaned.

  With the configuration of this example, the reaction container can be transported by the cleaning mechanism. When the size of the analyzer is further reduced, a unit configured for the size is increased, and there may be a case where the incubator, the optical measurement unit, and the cleaning mechanism cannot be arranged around one reaction container transport mechanism. In this case, a plurality of reaction container transport mechanisms 87 are used to install the reaction container in the cleaning mechanism and to remove the reaction container from the cleaning mechanism with a reaction container transport mechanism that accesses the cleaning mechanism from different directions. Thus, the size of the analyzer can be reduced.

  In this embodiment, one nozzle cleaning mechanism is mounted on the cleaning unit. However, the embodiment is not limited to this, and a plurality of nozzle cleaning mechanisms may be mounted. .

  Further, by using a cleaning nozzle mechanism 91 that can simultaneously clean the cleaning reagent nozzle and the suction nozzle as shown in FIG. 9 in the second embodiment, the cleaning mechanism can perform the cleaning operation on the reaction vessel in the same operation time as in the second embodiment. Compared to the second embodiment, the space occupied by the nozzle cleaning mechanism is increased, but the operating time and the number of ON / OFF operations of the pump and solenoid valve used for discharging the nozzle cleaning liquid can be reduced to extend their service life. .

1 Sample container holding position 2 Reagent cooler 3 Reagent container 4 Sample pipetting mechanism 5, 58, 77 Reagent pipetting mechanism 6 Reaction container 7 Incubator 8 Cleaning mechanism 9 Optical measuring unit 10, 87 Reaction container transport mechanism 21, 81 Cleaning station 22, 41, 61, 71, 85 Cleaning reagent nozzles 23, 42, 52, 62, 72, 86 Suction nozzles 24, 54, 75, 82 Nozzle cleaning mechanism 25 Nozzle cleaning liquid 26 Cleaning mechanism nozzle 31 formed in the reaction vessel Reaction container cleaning reagent flow 43, 53, 64, 74, 84 Moving base 44 Nozzle cleaning mechanism for cleaning reagent nozzle 45 Nozzle cleaning mechanism for suction nozzle 46 Nozzle cleaning mechanism for cleaning nozzle and reaction container on cleaning station Distance 47,55 Distance 48 between cleaning nozzle and suction nozzle Nozzle cleaning machine for suction nozzle And cleaning station distance 51 Cleaning nozzle 56 Distance between nozzle cleaning mechanism and reaction vessel installation stage 57, 76 Space 63, 73, 83 formed above reaction vessel Rotating shaft 65 Nozzle cleaning mechanism for cleaning reagent nozzle 66 Nozzle cleaning mechanism for suction nozzle 91 Cleaning nozzle cleaning mechanism

Claims (11)

A reaction container for mixing the biological sample and the reagent;
A washing station for holding the reaction vessel after the analysis,
A cleaning reagent nozzle for discharging and aspirating a cleaning reagent to clean the reaction vessel on the cleaning station;
A suction nozzle for sucking a cleaning residual liquid after cleaning by the cleaning reagent nozzle;
In an automatic analyzer equipped with a cleaning mechanism for cleaning the cleaning reagent nozzle or the suction nozzle or both,
The cleaning reagent nozzle and the suction nozzle are integrated into a nozzle unit that moves on the linear axis,
The distance between the cleaning reagent nozzle and the suction nozzle is equal to the distance between the nozzle cleaning mechanism and the reaction container on the cleaning station, and the nozzle unit is directed to the nozzle cleaning mechanism and the reaction container on the cleaning station. A featured automatic analyzer.
A reaction container for mixing the biological sample and the reagent;
A washing station for holding the reaction vessel after the analysis,
A cleaning reagent nozzle for discharging and aspirating a cleaning reagent to clean the reaction vessel on the cleaning station;
A suction nozzle for sucking a cleaning residual liquid after cleaning by the cleaning reagent nozzle;
In an automatic analyzer equipped with a cleaning mechanism for cleaning the cleaning reagent nozzle or the suction nozzle or both,
The cleaning reagent nozzle and the suction nozzle are integrated into a nozzle unit that rotates on a circumference around a rotation axis ;
An angle formed by the cleaning reagent nozzle and the suction nozzle about the rotation axis is equal to an angle formed by the reaction container on the nozzle cleaning mechanism and the cleaning station about the rotation axis, and the nozzle unit is configured by the nozzle cleaning mechanism. And a reaction vessel on the washing station.
A reaction container for mixing the biological sample and the reagent;
A washing station for holding the reaction vessel after the analysis,
A cleaning reagent nozzle for discharging and aspirating a cleaning reagent to clean the reaction vessel on the cleaning station;
A suction nozzle for sucking a cleaning residual liquid after cleaning by the cleaning reagent nozzle;
In an automatic analyzer equipped with a cleaning mechanism for cleaning the cleaning reagent nozzle or the suction nozzle or both,
The cleaning station and the nozzle cleaning mechanism have a cleaning unit that moves integrally on the linear motion shaft,
The distance between the nozzle cleaning mechanism and the reaction vessel on the cleaning station is equal to the distance between the cleaning reagent nozzle and the suction nozzle, and the cleaning unit is directed to the cleaning reagent nozzle and the suction nozzle. Automatic analyzer to do.
A reaction container for mixing the biological sample and the reagent;
A washing station for holding the reaction vessel after the analysis,
A cleaning reagent nozzle for discharging and aspirating a cleaning reagent to clean the reaction vessel on the cleaning station;
A suction nozzle for sucking a cleaning residual liquid after cleaning by the cleaning reagent nozzle;
In an automatic analyzer equipped with a cleaning mechanism for cleaning the cleaning reagent nozzle or the suction nozzle or both,
The cleaning station and the nozzle cleaning mechanism are integrated into a cleaning unit that rotates on a circumference around a rotation axis ;
Wherein the angle between the reaction vessel forms around the rotating shaft on the nozzle cleaning mechanism and the cleaning station equal to the angle formed around the said wash reagent nozzle and said suction nozzle rotating shaft, wherein the cleaning unit is the cleaning An automatic analyzer directed to a reagent nozzle and the suction nozzle.
A reaction container for mixing the biological sample and the reagent;
A washing station for holding the reaction vessel after the analysis,
A cleaning reagent nozzle that discharges and sucks a cleaning reagent to clean the reaction container on the cleaning station; and a suction nozzle that sucks a cleaning residual liquid after cleaning by the cleaning reagent nozzle;
In an automatic analyzer equipped with a cleaning mechanism for cleaning the cleaning reagent nozzle or the suction nozzle or both,
A nozzle unit in which the cleaning reagent nozzle and the suction nozzle are integrated;
A cleaning unit in which the cleaning station and the nozzle cleaning mechanism are integrated;
The nozzle unit and the cleaning unit move on different linear axes,
The distance between the cleaning reagent nozzle and the suction nozzle is equal to the distance between the nozzle cleaning mechanism and the reaction vessel on the cleaning station,
The automatic analyzer is characterized in that the nozzle unit and the washing unit are accessible to each other.
A reaction container for mixing the biological sample and the reagent;
A washing station for holding the reaction vessel after the analysis,
A cleaning reagent nozzle for discharging and aspirating a cleaning reagent to clean the reaction vessel on the cleaning station;
A suction nozzle for sucking a cleaning residual liquid after cleaning by the cleaning reagent nozzle;
In an automatic analyzer equipped with a cleaning mechanism for cleaning the cleaning reagent nozzle or / and the suction nozzle,
A nozzle unit in which the cleaning reagent nozzle and the suction nozzle are integrated and rotate around a rotation axis ; and
A cleaning unit that integrally moves the cleaning station and the nozzle cleaning mechanism and rotates around the rotation axis ;
The nozzle unit and the cleaning unit rotate and move independently ,
The angle at which the washing reagent nozzle and said suction nozzle forms around the rotation axis is equal to the angle which the reaction vessel on the nozzle cleaning mechanism and said cleaning station is formed around the rotary shaft,
The automatic analyzer is characterized in that the nozzle unit and the washing unit are accessible to each other.
The automatic analyzer according to any one of claims 1 to 6,
An automatic analyzer having two nozzle cleaning mechanisms on both sides of the cleaning station along a direction in which the nozzle cleaning mechanism, the suction nozzle and the cleaning reagent nozzle move relatively .
The automatic analyzer according to claim 7,
An automatic analyzer having a pipetting mechanism for dispensing a reagent or a sample into a reaction container on the washing station.
The automatic analyzer according to any one of claims 3 to 6,
An automatic analyzer comprising one or more reaction container carry-out mechanisms for transferring a reaction container between another unit of the automatic analyzer and a washing unit.
The automatic analyzer according to any one of claims 1 to 9,
The automatic analysis apparatus is characterized in that the cleaning of the reaction container is performed by sequentially discharging the cleaning reagent by the cleaning reagent nozzle and suctioning the cleaning reagent by the cleaning reagent nozzle.
The automatic analyzer according to any one of claims 1 to 9,
A plurality of the cleaning reagent nozzles are provided,
The automatic analysis apparatus is characterized in that the cleaning of the reaction container is performed by arranging the plurality of cleaning reagent nozzles in the reaction container at the same time and suctioning and discharging the cleaning reagent in parallel.

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