JP2018040578A - Automatic analyzer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic analyzer capable of preventing dropping of droplets in a reagent chamber.SOLUTION: An automatic analyzer includes: a reagent chamber including a ceiling face; a wiper 17 in a longitudinal shape; a joint 18; and a motor 22. The joint 18 supports the wiper 17, so as to bring it into contact with the ceiling face of the reagent chamber from the inside of the reagent chamber. The motor 22 rotates the joint 18 around its rotational axis, so as to slide the wiper 17 along the ceiling face.SELECTED DRAWING: Figure 6

Description

  Embodiments described herein relate generally to a medical automatic analyzer.

The automatic analyzer mixes a sample collected from a patient and a reagent corresponding to each test item ordered as the patient's test item, generates a reaction solution, and measures the reaction state of the reaction solution. Analyze various components contained in the sample and properties of the sample. These series of processes are automatically executed by an automatic analyzer. By measuring the reaction solution, various analytical data indicating the concentration of various components in the sample, enzyme activity, and the like can be obtained.
The reagent to be mixed with the sample is determined for each inspection item, and is stored in each individual bottle. Each reagent bottle is held in a reagent store of the automatic analyzer.

  The reagent storage is provided with a cooling mechanism in order to cool the reagent accommodated therein. The cooling mechanism of the reagent store cools not only the reagent but also the humid air in the reagent store. Therefore, a part of the water vapor contained in the air condenses and aggregates to form water droplets. Such a phenomenon is called condensation. Condensation may cause mold in the reagent storage. Therefore, a technique for wiping off water adhering to the inner peripheral wall of the reagent storage due to condensation has been proposed.

JP 2014-006140 A

  However, the proposed technique does not consider that water adheres to the ceiling surface of the reagent storage due to condensation. The water adhering to the ceiling will eventually drip from the ceiling.

  Usually, the reagent bottle is accommodated in the reagent container in an opened state so that the reagent can be sucked quickly and smoothly. Therefore, there is a fear that water dripped from the ceiling surface of the reagent storage may enter the reagent bottle from the reagent suction port. When water drops into the reagent bottle in this way, the reagent in the bottle is diluted with water, and the concentration changes.

  Further, the vaporized gas evaporated from the reagent surface rises from the reagent suction port of the reagent bottle, and an atmosphere containing the reagent components drifts near the ceiling in the reagent storage. Therefore, the atmosphere near the ceiling in the reagent storage is a mixture of various different reagent components. Among the components contained in such an atmosphere, water-soluble ones dissolve in the water adhering to the ceiling, and there is a fear that an aqueous solution in which various components are mixed is generated on the ceiling surface of the reagent storage. When such an aqueous solution dripped into the reagent bottle, the reagent in the reagent bottle is contaminated.

  The unexpected entry of water into the reagent bottle due to condensation as described above causes a problem in the measurement result of the apparatus, but it is difficult to identify the cause.

Therefore, it is desired to deal with water adhering to the ceiling surface in the reagent storage before dripping from the ceiling surface.
The object is to provide an automatic analyzer capable of preventing dripping of water adhering to the ceiling surface in the reagent storage from the ceiling surface.

  According to the embodiment, the automatic analyzer includes a reagent storage having a ceiling surface, a wiper having a longitudinal shape, a support unit, and a drive unit. The support part supports the wiper and abuts against the ceiling surface of the reagent storage from the inside of the reagent storage. The drive unit rotates the support unit around the rotation axis to slide the wiper along the ceiling surface.

FIG. 1 is an external view showing an example of an automatic analyzer according to the embodiment. FIG. 2 is a view of a region including the reagent arm 7a having the reagent probe 8a at one end, the first reagent storage 6, and a part of the reaction disk 2 as viewed from above. FIG. 3 is a view of the region including the reagent arm 7b having the reagent probe 8b at one end, the second reagent storage 9, and a part of the reaction disk 2 as viewed from above. FIG. 4 is an external view showing an example of the reagent bottle 14. FIG. 5 is an external view schematically showing the first reagent storage 6 and the lid 13a. FIG. 6 is an AA cross-sectional view including the lid 13a and the first reagent storage 6 shown in FIG. FIG. 7 is a perspective view showing the appearance of the wiper 17. FIG. 8 is an external view of the wiper 17 viewed from the circumferential side. FIG. 9 is a diagram illustrating an example of the relationship between the driving direction of the wiper 17 and the water flow. 10 is a cross-sectional view of the wiper 17 shown in FIG. FIG. 11 is a cross-sectional view of the wiper 17 shown in FIG. 9 cut in the short direction. FIG. 12 is a diagram illustrating an example of a support mechanism for the wiper 17 in the automatic analyzer according to the second embodiment.

[First Embodiment]
FIG. 1 is an external view showing an example of an automatic analyzer according to the first embodiment. An automatic analyzer 1 shown in FIG. 1 includes a reaction disk 2, a sample disk 3, a sample arm 4, a sample probe 5, a first reagent storage 6, a reagent arm 7a, a reagent arm 7b, a reagent probe 8a, a reagent probe 8b, and A second reagent storage 9 is provided. In addition, the 2nd reagent storage 9 is located under the cover 13b, and is not illustrated in FIG.

  In FIG. 1, the reaction disk 2 holds a plurality of reaction tubes 10. The plurality of reaction tubes 10 are arranged in a ring shape on the reaction disk 2. The reaction disk 2 repeats rotation and pause alternately.

  For example, the first reagent storage 6 is disposed inside the ring of the reaction disk 2. The first reagent store 6 has a reagent bottle rack 11. The reagent bottle rack 11 accommodates a plurality of reagent bottles 12 arranged in an annular shape. The first reagent storage 6 is cooled by a cooling mechanism or the like, and is normally closed with a lid 13a so that the cold air does not escape. Thereby, the reagent in the reagent bottle 12 can be kept at an appropriate temperature. Here, the 1st reagent storage 6 has a wiper mechanism which wipes off the water droplet adhering to the ceiling surface of the 1st reagent storage 6 of lid 13a using longitudinally shaped wiper 17. This wiper mechanism will be described in detail later.

  The sample disk 3 is arranged, for example, in the vicinity of the reaction disk 2. The sample disk 3 holds a plurality of sample containers each containing a sample in an annular shape. As the sample disk 3 rotates, the sample containers holding the sample to be sucked next are sequentially moved to the sample suction position.

  A sample arm 4 is disposed between the reaction disk 2 and the sample disk 3. The sample arm 4 has a sample probe 5 at one end thereof. The sample arm 4 supports the sample probe 5 so as to be movable up and down.

  For example, the second reagent storage 9 is arranged in the vicinity of the reaction disk 2. The second reagent storage 9 accommodates a plurality of reagent bottles in a cylindrical space. The second reagent storage 9 is cooled by a cooling mechanism or the like, and is normally closed with a lid 13b so that the cold air does not escape. Thereby, the reagent in the reagent bottle can be kept at an appropriate temperature. In addition, the 2nd reagent storage 9 has the wiper mechanism mentioned later similarly to the 1st reagent storage 6. FIG.

  The reagent in the reagent bottle 12 of the first reagent store 6 is used in combination with the reagent in the reagent bottle of the second reagent store 9 according to the inspection item. Of course, the reagents in each reagent bottle may be used alone or in combination with reagents in different reagent bottles stored in the same reagent storage.

  Reagent arms 7 a and 7 b are arranged between the reaction disk 2 and the second reagent storage 9. Each of the reagent arms 7a and 7b includes reagent probes 8a and 8b at one end thereof. The reagent arms 7a and 7b support the reagent probes 8a and 8b so as to be movable up and down. The reagent arms 7a and 7b support the reagent probes 8a and 8b so as to be rotatable along an arcuate rotation locus.

  FIG. 2 is a top view of a region including the reagent arm 7a having the reagent probe 8a at one end, the first reagent storage 6, and a part of the reaction disk 2. In order to explain the rotation trajectory of the reagent arm 7a, FIG. FIG. As shown in FIG. 2, the rotation trajectory of the reagent arm 7 a is based on the reagent suction position P <b> 1 (that is, the hole 130 a provided in the lid 13 a) on the first reagent storage 6 and the reagent discharge position P <b> 2 on the reaction disk 2. And pass through.

  FIG. 3 is a view of a region including the reagent arm 7b having the reagent probe 8b at one end, the second reagent storage 9, and a part of the reaction disk 2 from above, for explaining the rotation trajectory of the reagent arm 7b. FIG. As shown in FIG. 3, the rotation trajectory of the reagent arm 7b is based on the reagent suction position P1 (that is, the hole 130b provided in the lid 13b) on the second reagent storage 9 and the reagent discharge position P2 on the reaction disk 2. And pass through.

  FIG. 4 is an external view showing an example of the reagent bottle 14 placed on the bottle rack in the first reagent store 6 and the second reagent store 9. The three-dimensional shape of the reagent bottle 14 is usually a fan shape (or a wedge shape). A plurality of reagent bottles 14 are regularly arranged in the first reagent chamber 6 and the second reagent chamber 9 so as to draw a circle with the sector-shaped central angle portion (or wedge-shaped tip portion) as the center. Placed. A reagent suction port 15 is provided on the vertical upper surface of each reagent bottle 14. In each of the first reagent store 6 and the second reagent store 9, the reagent suction port 15 of the reagent bottle 14 storing the reagent to be aspirated is in the holes 130a and 130b in accordance with the suction timing by the reagent probes 8a and 8b. The rotation of the bottle rack in each reagent storage is controlled so as to come to the position.

  A barcode label 16 may be attached to the back of the reagent bottle 14. The barcode label 16 may include reagent information such as reagent identification information, reagent manufacturing date, expiration date, and reagent bottle type. An IC chip or an RFID tag may be used instead of the barcode label.

  FIG. 5 is an external view schematically showing the first reagent storage 6 and the lid 13a. The configuration of the first reagent storage 6 and the lid 13a will be described with reference to the figure, but the configuration of the second reagent storage 9 and the lid 13b is the same.

  As shown in FIG. 5, the lid 13 a has an upper surface 131 provided with a handle 130 and a mortar-shaped bottom surface 132. That is, as indicated by the dotted line in FIG. 5, the first reagent storage 6 has a cylindrical shape like a donut. The lid 13a has a shape projecting toward the bottom surface side of the first reagent storage 6 from the outer periphery of the first reagent storage 6 toward the inner periphery with the axis of the cylindrical first reagent storage 6 as the center.

  The bottom surface of the lid 13 a is the ceiling surface of the first reagent storage 6. Water due to condensation is likely to adhere to the ceiling surface. By making the lid 13a into a mortar shape, the adhering water flows toward the center of the lid 13 along the sloped slope of the ceiling surface.

  The upper surface 131 of the lid 13a may have a divided structure that can be partially opened and closed. By using such a lid 13a, it is possible to minimize the cool air that escapes when the reagent bottle 14 is replaced.

(Wiper mechanism)
Next, a wiper mechanism included in the automatic analyzer according to the present embodiment will be described. The mechanism is for wiping off water droplets adhering to the ceiling surface (that is, the bottom surface of the lid) in the reagent storage at a predetermined timing using a wiper. In the following, the wiper mechanism provided in the first reagent store 6 will be described as an example, but the same applies to the wiper mechanism provided in the second reagent store 9.

  FIG. 6 is an AA cross-sectional view including the lid 13a and the first reagent storage 6 shown in FIG. In FIG. 6, the wiper 17 is supported by a joint 18 and abuts against the ceiling surface of the first reagent storage 6 (the bottom surface of the lid 13 a) from the inside of the first reagent storage 6. The joint 18 rotates around the rotation axis R in contact with the slope of the ceiling surface, and wipes off water droplets adhering to the ceiling surface.

  The joint 18 is connected to a cylindrical hollow shaft 19. The joint 18 includes a flow path for guiding water collected by the wiper 17. The hollow shaft 19 includes a gear 20 formed on the outer surface thereof. The gear 20 is connected to a drive shaft of a motor 22 attached to the base 21 via a belt 23 and a gear 24. As a result, when the motor 22 is driven, the hollow shaft 19 rotates around the axis, and the joint 18 and the wiper 17 connected to the joint 18 rotate with the hollow shaft 19 aligned with the axis. The direction of rotation may be clockwise or counterclockwise with respect to the rotation axis R.

  In the first embodiment, the motor 22 is driven to rotate when the automatic analyzer 1 is in the standby mode, and is stopped when the automatic analyzer 1 is in the inspection mode. Therefore, the wiper 17 moves when the automatic analyzer 1 is in the standby mode, and maintains a stopped state at, for example, a fixed position (home position) in the inspection mode. By doing in this way, it can prevent that the wiper 17 and the reagent probe 8 interfere during a test | inspection.

  In the embodiment, the standby mode is a mode in which a part of the function of the apparatus is suspended, and the automatic analyzer is set to the standby mode during a period from startup to a stable state or when waiting for an input of a test order. Transition. It is possible for the user to set in what state the mode is shifted to the standby mode.

  When the inspection order is given, the automatic analyzer shifts to the inspection mode, and various units start to operate. In the inspection mode, the reaction disk 2 and the sample disk 3 start rotating, and the sample arm 4, the sample probe 5, the reagent arms 7a and 7b, and the reagent probes 8a and 8b frequently move.

  When the wiper 17 is moved in the inspection mode, the wiper 17 and the reagent probe 8a may come into contact with each other. Since water does not always adhere to the ceiling surface in the reagent storage, a sufficient effect can be obtained by periodically wiping in the standby mode.

  A tube 25 is provided inside the hollow shaft 19 so as to be aligned with the hollow shaft 19. One end of the tube 25 is connected to the joint 18 and receives a water flow from the wiper 17. The other end of the tube 25 is connected to a bearing 26 with a joint. The bearing 26 is rotatably connected to the funnel 27. As a result, the tube 25 guides the water flow from the wiper 17 to the funnel 27 without being twisted by the rotation of the hollow shaft 19.

  The funnel 27 is further connected to an electromagnetic valve 29 via a tube 28. The electromagnetic valve 29 opens and closes a line between the tube 28 and the vacuum pump 30. That is, when the electromagnetic valve 29 is opened, a flow path of water from the wiper 17 to the vacuum pump 30 is connected, and suction force by vacuuming is brought to the wiper 17. As a result, water droplets are sucked by the vacuum pump 30 and discharged to the drain line.

  FIG. 7A and FIG. 7B are perspective views showing the appearance of the wiper 17. In each figure, the center side means the center of the first reagent storage 6 (namely, the rotation axis R in FIG. 6), and the circumferential center side means the circumference of the first reagent storage 6 (namely, FIG. 6 side of the first reagent storage 6) side.

  The wiper 17 includes an internal structure for wiping off water adhering to the ceiling surface of the first reagent storage 6 (that is, the mortar-shaped bottom surface of the lid 13a). That is, the wiper 17 includes a main body 31 and a plurality of blades 32 regularly arranged in the longitudinal direction of the wiper 17. Each blade 32 is arranged at an angle of, for example, 45 ° with respect to the longitudinal direction.

  FIG. 8 is an external view of the wiper 17 viewed from the circumferential side. In FIG. 8, the wiper 17 includes a main body 31 having an E-shaped cross section and a plurality of blades 32 arranged along the longitudinal direction of the main body 31. The main body 31 is formed in a groove shape or a bowl shape along the longitudinal direction of the wiper 17, and includes a bottom portion 33 and a side wall 34. The side wall 34 rises from the bottom 33 to form a bowl-like structure, and prevents the water wiped off by the blade 32 from overflowing. The bottom 33 is inclined from the side wall 34 toward the center of the groove so that the water wiped by the blade 32 is directed toward the center of the main body 31.

  The blade 32 is, for example, a plate-like hard rubber, and extends from the bottom 33 so as to protrude slightly from the side wall 34 of the main body 31. When the wiper 17 comes into contact with the ceiling surface of the first reagent storage 6, each blade 32 comes into contact with the ceiling surface of the first reagent storage 6 to wipe off water droplets.

  FIG. 9 is a diagram illustrating an example of the relationship between the movement direction of the wiper 17 and the water flow. The wiper 17 can be operated in any direction of the white arrow shown in FIG. Since the blade 32 is mounted obliquely with respect to the longitudinal direction of the wiper 17, when the wiper 17 moves, the wiped water is guided toward the groove center of the wiper 17. Hatched arrows indicate the direction of guided water flow. Regardless of the direction in which the wiper 17 moves, the wiped water droplets are guided to the center of the wiper 17.

  10 is a cross-sectional view of the wiper 17 shown in FIG. FIG. 11 is a cross-sectional view of the wiper 17 shown in FIG. 9 taken along the short direction. The wiper 17 includes a tube 35 along the longitudinal axis direction. The pipe 35 is provided with a plurality of water intakes 36 bored at the same pitch as the blade 32, for example. Then, the water guided to the center of the groove formed by the bottom 33 and the side wall 34 is sucked from the water intake 36, passes through the pipe 35, and is guided to the outside of the wiper 17. The pipe 35 is connected to the joint 18 shown in FIG. 6, and a line extending from the joint 18 to the vacuum pump 30 through the tube 25, the bearing 26, the funnel 27, the tube 28, and the electromagnetic valve 29 is formed. With this series of lines, the sucked water droplets are removed from the wiper 17 to the outside of the first reagent storage 6.

  In the above configuration, the wiper 17 is in contact with the ceiling surface of the first reagent storage 6 with the lid 13a closed. When the standby mode is set from this state, the driving force of the motor 22 is transmitted to the gear 20 via the gear 24 and the belt 23. As a result, the hollow shaft 19 rotates around the rotation axis R, and the water adhering to the ceiling surface of the first reagent storage 6 is wiped off by the wiper 17.

  The wiped water passes from the wiper 17 through the joint 18 and the hollow shaft 19 through the tube 25 and is received by the funnel 27 via the bearing 26. On the other hand, the electromagnetic valve 29 is opened, and the suction force of the vacuum pump 30 reaches the tube 28. Then, the wiped water is sucked from the funnel 27 and discharged to the drain line.

  As described above, in the first embodiment, the wiper is brought into contact with the ceiling surface (that is, the bottom surface of the lid of the reagent store) from the inside of the reagent store, and the wiper is rotated with the water adhering to the ceiling surface. Drive to wipe. The wiper is always in contact with the bottom surface of the lid when the lid of the reagent storage is closed. However, the wiper is moved only in the standby mode of the automatic analyzer. Thereby, deterioration of the wiper 17 can be minimized and a continuous wiping effect can be expected.

  Although it is possible to wipe off the water adhering to the side wall of the reagent storage according to the existing technology, the water adhering to the ceiling surface cannot be removed, so that water drops from the ceiling surface and enters the reagent bottle. I'm scared. Further, since the wiping mechanism is always operated, the wiper deteriorates early. Furthermore, there was a fear that the wiped water would be blown off due to the elasticity of the wiper itself.

  On the other hand, according to 1st Embodiment, the water adhering to the ceiling surface of a reagent store can be removed reliably. The wiper 17 has a blade 32 for wiping water and a side wall 34 for preventing the wiped water from overflowing, and the wiped water is guided to the central axis along the inclination of the bottom 33 of the wiper 17. It is burned. Further, pipes 35 with holes are provided at various locations along the axis of the wiper 17, and water wiped off by the blade 32 is guided to the tube 25 through the pipe 35.

  The tube 25 is connected to the vacuum pump 30 via the electromagnetic valve 29 (FIG. 6). The vacuum pump 30 is provided with a line branch by an electromagnetic valve 29, and the line connecting the tube 25 and the vacuum pump 30 is cut off in the inspection mode of the automatic analyzer 1.

  On the other hand, in the standby mode, a line connecting the tube 25 and the vacuum pump 30 is connected, and when the wiper 17 starts to be driven, the suction operation of the vacuum pump 30 is started. When the wiper 17 is stopped after the standby mode is finished, the line switching of the solenoid valve 29 is restored.

  Since it is the above structures, according to 1st Embodiment, the water wiped off with the wiper 17 can be drained reliably, without scattering. Therefore, it is possible to reliably prevent water from dripping from the ceiling surface in the reagent storage.

[Second Embodiment]
FIG. 12 is a diagram illustrating an example of a support mechanism for the wiper 17 in the automatic analyzer 1 according to the second embodiment. In this embodiment, the wiper 17 is supported by a pedestal 37 and a shaft 38 extending from the pedestal 37. The pedestal 37 has the same three-dimensional shape as the reagent bottle 14 (FIG. 3), and can be arranged in the reagent bottle rack 11 of the first reagent storage 6 while being mixed with the reagent bottle 14.

  The shaft 38 supports the wiper 17 by a retractable mechanism such as a solenoid. In the normal mode (inspection mode), the shaft 38 is contracted, and the wiper 17 is separated from the bottom surface of the lid 13a. On the other hand, when it is detected that the automatic analyzer 1 has entered the standby mode, the shaft 38 extends from the pedestal 37 and the wiper 17 contacts the ceiling surface. And the wiper 17 also rotates according to rotation of the 1st reagent store | warehouse | chamber 6, and the water adhering to the bottom face of the lid | cover 13a is wiped off.

  As described above, in the second embodiment, the shaft 38 using a solenoid or the like is provided in the dedicated rack (or reagent rack) in the first reagent storage 6, and the wiper 17 is supported by the shaft 38. The solenoid was turned on / off to move the shaft 38 up and down, and the wiper 17 was brought into contact with the ceiling surface of the first reagent storage 6 only when the solenoid was turned on.

  Since it is the said structure, the wiper 17 moves according to the rotation operation | movement in the 1st reagent store | warehouse | chamber 6 itself, and the water adhering to a ceiling surface is wiped off. Thereby, since it is not necessary to provide a mechanism for rotating the wiper 17, the configuration can be simplified. Also according to the second embodiment, the wiper 17 contacts the ceiling surface of the first reagent storage 6 only when necessary, so that deterioration can be minimized.

  The present invention is not limited to the above embodiment. For example, the attachment angle of the blade 32 of the wiper 17 is not limited to 45 °. In short, it is only necessary that the blades 32 be arranged so that the wiped water is guided to the groove of the wiper 17 as the wiper 17 moves.

  In the embodiment, the lid 13a and the lid 13b are configured to have a bottom of a mortar. However, without being limited to the example, the bottom surfaces of the lid 13a and the lid 13b are flat, and the wiper 17 is brought into contact with the bottom surfaces (that is, the ceiling surfaces of the first reagent storage 6 and the second reagent storage 9) as the flat surfaces, It is good also as a structure wiped off by the wiper mechanism which concerns on each said embodiment.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Automatic analyzer, 2 ... Reaction disk, 3 ... Sample disk, 4 ... Sample arm, 5 ... Sample probe, 6 ... Reagent storage, 7a ... Reagent arm, 7b ... Reagent arm, 8 ... Reagent probe, 8a ... Reagent probe 8 ... Reagent probe, 9 ... Reagent storage, 10 ... Reaction tube, 11 ... Reagent bottle rack, 12 ... Reagent bottle, 13 ... Lid, 13a ... Lid, 13b ... Lid, 14 ... Reagent bottle, 15 ... Reagent suction port, 16 ... Bar code label, 17 ... Wiper, 18 ... Joint, 19 ... Hollow shaft, 20 ... Gear, 21 ... Base, 22 ... Motor, 23 ... Belt, 24 ... Gear, 25 ... Tube, 26 ... Bearing with joint, 27 ... funnel, 28 ... tube, 29 ... solenoid valve, 30 ... vacuum pump, 31 ... main body, 32 ... blade, 33 ... bottom, 34 ... side wall, 35 ... pipe, 3 ... intake, 37 ... base, 38 ... shaft, 130 ... handle, 130a ... hole 130b ... hole 131 ... top, 132 ... bottom, P1 ... reagent aspirating position, P2 ... reagent discharge position.

Claims (12)

A reagent storage having a ceiling surface;
A wiper having a longitudinal shape;
A support part that supports the wiper and contacts the ceiling surface of the reagent store from the inside of the reagent store;
An automatic analyzer comprising: a drive unit that rotates the support unit around a rotation axis to slide the wiper along the ceiling surface.   The automatic analyzer according to claim 1, wherein the wiper has a blade that wipes off water adhering to the ceiling surface.   The automatic analysis apparatus according to claim 2, wherein the blade is a plurality of plate-like members regularly arranged in a longitudinal direction of the wiper. The wiper includes a bowl-shaped groove along the longitudinal direction of the wiper that receives the wiped water,
The automatic analyzer according to claim 3, wherein the plurality of blades are arranged so that the wiped water is guided to the groove as the wiper moves.   The automatic analyzer according to claim 4, wherein the wiper includes a flow path for guiding the water guided to the groove to the outside of the reagent storage. Furthermore, with vacuum pump,
The automatic analyzer according to claim 5, further comprising a valve that opens and closes a line between the flow path and the vacuum pump.   The automatic analyzer according to claim 1, wherein the drive unit moves the wiper when the automatic analyzer is in a standby mode. The drive unit includes a shaft that is rotationally driven in alignment with the rotary shaft,
The automatic analyzer according to claim 1, wherein the support portion includes a joint that is fixed to the shaft and supports the wiper. The drive unit includes a mounting unit that is mounted around the rotation axis by mounting a reagent bottle in the reagent storage,
The support part is
A pedestal that interlocks with the mounting section,
The automatic analyzer according to claim 1, further comprising: a telescopic portion that extends from the pedestal and drives the wiper against the ceiling surface when the mounting portion is driven.   The automatic analyzer according to claim 9, wherein the pedestal has a three-dimensional shape common to the reagent bottle. The ceiling surface has a mortar shape that is recessed from the outside to the inside of the reagent storage centering on the rotation axis,
2. The automatic analyzer according to claim 1, wherein the wiper contacts the ceiling surface along the mortar-shaped slope portion.   The automatic analyzer according to claim 1, wherein the ceiling surface is a bottom surface of a lid of the reagent storage.