JP6214301B2 - Automatic analyzer - Google Patents

Description

  The present invention relates to an automatic analyzer.

  An automatic analyzer that automatically analyzes a measurement sample obtained by mixing a sample (for example, blood, urine, etc.) and a reagent is known. In addition, it is known to store a reagent container containing a reagent in a reagent cold box in order to keep the reagent cold. In addition, it is known that the reagent is sucked from the reagent container in a state of being stored in the reagent cooler, the sucked reagent is discharged, and the reagent and the sample are mixed.

  Here, a technique for making the temperature inside the reagent cooler uniform is described in JP 2012-137329 A (Patent Document 1). Patent Document 1 states that “a reagent cooler is a cool box body having a storage space for a reagent container, a cooling unit that cools air inside the cool box body, and air that is blown toward the inner surface of the cool box body. And an air blower that circulates air in the cool box body, and the inner surface of the cool box body is higher from the center side of the sprayed area A to which the air flow is blown toward the periphery thereof. It has an inclined surface that is inclined so as to gradually become lower. "

  A technique for preventing the reagent from evaporating is described in Japanese Patent Application Laid-Open No. 2011-191117 (Patent Document 2). Patent Document 2 describes that “the air cooled by the cooler is circulated by the flow fan in the reagent storage”.

JP 2012-137329 A JP 2011-191117 A

  Here, the emptied reagent container is unloaded from the reagent cooler through the loading / unloading port by a reagent container loading / unloading unit (for example, an elevator). Then, after the empty reagent container is carried out, it is replaced with a new reagent container. Thereafter, the exchanged reagent container is carried into the reagent cold storage by the reagent container carry-in / out section via the carry-in / out opening. Here, when the reagent container is carried out or carried in from the reagent cold storage, there is a problem that outside air flows into the reagent cold storage through a gap formed at the loading / unloading outlet, and condensation occurs around the loading / unloading outlet.

  The objective of this invention is providing the technique which prevents that dew condensation generate | occur | produces around the carrying in / out opening formed in a part of upper surface of a reagent cooler.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  One embodiment of the present invention is an automatic analyzer that analyzes a measurement sample in which a sample and a reagent are mixed, and includes a reagent cooler that houses a reagent container containing the reagent. In addition, a blower for circulating the air inside the reagent cooler is provided inside the reagent cooler. Moreover, the blower opening of the blower is directed obliquely downward toward the bottom surface of the reagent cooler. And the said air blower blows toward the bottom face of the said reagent cooler.

  Another embodiment is an automatic analyzer that analyzes a measurement sample obtained by mixing a sample and a reagent, and includes a reagent cooler that houses a reagent container containing the reagent. In addition, a blower for circulating the air inside the reagent cooler is provided inside the reagent cooler. In addition, a heat insulating member is provided inside the reagent cool box in the inner circumferential direction of the reagent disk. In addition, the blower opening of the blower is directed obliquely downward toward the bottom surface of the heat insulating member and the reagent cooler. And the said air blower blows toward the said heat insulation member and the bottom face of the said reagent cooler.

  Another embodiment is an automatic analyzer that analyzes a measurement sample obtained by mixing a sample and a reagent, and includes a reagent cooler that houses a reagent container containing the reagent. In addition, a blower for circulating the air inside the reagent cooler is provided inside the reagent cooler. Further, a rectifying member is provided in the inside of the reagent cooler, which surrounds the suction port of the blower and includes a port for introducing air from below the reagent cooler, and the blower port of the blower is connected to the reagent cooler. The blower blows air toward the bottom surface of the reagent cool box. Further, a guide member is provided inside the reagent cool box in the inner circumferential direction of the reagent disk, and the blower blows air toward the guide member and the bottom surface of the reagent cool box.

  Another embodiment is an automatic analyzer that analyzes a measurement sample obtained by mixing a sample and a reagent, and includes a reagent cooler that houses a reagent container containing the reagent. In addition, a blower for circulating the air inside the reagent cooler is provided inside the reagent cooler. In addition, a cooling member that cools the air sucked into the blower is provided inside the reagent cooler, and the blower opening of the blower is directed obliquely downward toward the bottom surface of the reagent cooler. The blower blows air toward the bottom surface of the reagent cool box.

  Among the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows.

  According to the typical embodiment of the present invention, it is possible to prevent dew condensation from occurring around the loading / unloading port formed in a part of the upper surface of the reagent cooler.

2 is a plan view of the automatic analyzer according to Embodiment 1. FIG. 3 is a longitudinal sectional view of a reagent cooler in Embodiment 1. FIG. FIG. 6 is a diagram showing an order in which reagent containers are moved in the first embodiment. FIG. 6 is a diagram for describing airflow generated inside the reagent cold storage when the reagent container carry-in / out section in the first embodiment is between the raised position and the lowered position. FIG. 6 is a diagram for describing an air flow generated inside the reagent cooler when the reagent container carry-in / out section in the first embodiment is in the raised position. FIG. 6 is a diagram for describing airflow generated inside the reagent cold storage when the reagent container carry-in / out section in the first embodiment is in the lowered position. FIG. 3 is an enlarged vertical cross-sectional view of a reagent cooler in Embodiment 1. FIG. 5 is a longitudinal sectional view of a reagent cooler in Embodiment 2. 6 is a front view of a heat insulating member in Embodiment 2. FIG. FIG. 6 is an enlarged longitudinal sectional view of a reagent cooler in Embodiment 2. FIG. 10 is another enlarged vertical cross-sectional view of the reagent cooler in Embodiment 2. 6 is a plan view of an automatic analyzer according to Embodiment 3. FIG. FIG. 6 is a longitudinal sectional view of a reagent cooler in Embodiment 3. It is a longitudinal cross-sectional view (with a heat insulation member) of the reagent cooler in Embodiment 3. It is a longitudinal cross-sectional view (with a guide member) of the reagent cooler in Embodiment 3. It is the perspective view (with a guide member) of the air blower with a rectifying member in Embodiment 3. It is the perspective view (with a guide member) No. 2 of the air blower with a rectifying member in Embodiment 3. FIG. 10 is a vertical cross-sectional view of a reagent cooler in Embodiment 4. FIG. 10 is a first perspective view of the cooling member according to the fourth embodiment (with a guide member). FIG. 6 is a second perspective view of the cooling member in the fourth embodiment (with a guide member).

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

[Embodiment 1]
A first embodiment of the present invention will be described with reference to FIGS. In Embodiment 1, in order to circulate the air inside a reagent cool box, a blower is provided inside the reagent cool box. At that time, the blower blows air toward the bottom surface obliquely from above. The blown air is dried by the water removed from the bottom surface. Then, the dried air is blown upward along the side surface. The blown-up air flows horizontally below the gap and functions as an air curtain for the gap.

  As a result, it is possible to prevent wet air from entering through the gap and to circulate the dried air to prevent dew condensation from occurring near the gap.

<Overall configuration>
FIG. 1 is a plan view of the automatic analyzer according to the first embodiment. The automatic analyzer mixes a sample and a reagent and automatically analyzes the mixed measurement sample. As shown in FIG. 1, the automatic analyzer includes a transport line 110, a sample probe 120 for sucking a sample, a reaction container supply 130, a reaction container supply mechanism 140, a reaction container table 150, and a reaction measurement device. 160, a reagent cool box 300, a reagent probe 310, a reagent stirring rod 320, a reagent container loading / unloading unit 330, and a blower 340.

  The reaction container supply 130 holds a plurality of reaction containers 220. The reaction container supply mechanism 140 supplies the reaction container 220 held by the reaction container supply 130 to the reaction container table 150. The reaction container table 150 moves the supplied reaction container 220 to a reagent discharge position at which the reagent is discharged from the reagent probe 310 by rotating itself.

  The inside of the reagent cooler 300 is adjusted to a predetermined temperature or lower. The reagent cool box 300 accommodates a reagent container 400 containing a reagent. The reagent cold storage 300 has a cylindrical shape. Further, a suction hole (described later, FIG. 2) and an agitation hole (described later, FIG. 2) are formed on the upper surface of the reagent cooler 300. Hereinafter, a direction from the outer periphery of the reagent cooler 300 toward the center 303 horizontally is referred to as an inner peripheral direction, and a direction opposite to the inner peripheral direction may be referred to as an outer peripheral direction.

  The upper end of the reagent container 400 is open. The reagent stirring bar 320 is moved to a reagent stirring position for stirring the reagent contained in the reagent container 400. The reagent stirring rod 320 is inserted into the reagent container 400 through the stirring hole and the upper end of the reagent container 400. The reagent stirring bar 320 is rotated in the inserted state, thereby stirring the reagent contained in the reagent container. The reagent stirring rod 320 that has stirred the reagent is pulled out of the reagent container 400.

  Thereafter, the reagent probe 310 is moved from the reagent container 400 to a reagent aspirating position for aspirating the reagent. Then, the reagent probe 310 is inserted into the reagent container 400 through the suction hole and the upper end of the reagent container 400. Then, the reagent probe 310 sucks the reagent from the reagent container 400 in the inserted state.

  The reagent probe 310 that has aspirated the reagent is pulled out of the reagent container 400. Thereafter, the reagent probe 310 is moved to the reagent discharge position and discharges the reagent into the reaction container 220.

  After the reagent is discharged, the reaction container table 150 rotates itself to move the reaction container 220 to the sample discharge position where the sample is discharged from the sample probe 120.

  The transport line 110 transports the sample container 210 held in the test tube rack 200 to the sample suction position where the sample is sucked from the sample probe 120. The sample container 210 contains a sample. Further, the upper end of the sample container 210 is opened. After the sample container 210 is transported to the sample suction position, the sample probe 120 is inserted from the upper end of the sample container 210. Then, the sample probe 120 sucks the sample from the sample container 210 in the inserted state.

  After aspirating the sample, the sample probe 120 is pulled out of the sample container 210. Thereafter, the sample probe 120 is moved to the sample discharge position. After being moved to the sample discharge position, the sample probe 120 discharges the sucked sample to the reaction container 220.

  A stirring mechanism (not shown) stirs the reagent discharged from the reaction container 220 and the sample. The stirred reagent and sample are left for a predetermined time. After being left, the reaction vessel 220 is moved to the reaction measuring device 160. Then, the reaction measuring device 160 measures the reaction state between the reagent and the sample that have entered the moved reaction container 220.

  The reagent container loading / unloading unit 330 has a vertically lowered position (a position where the height of the reagent container 400 mounted on the reagent container loading / unloading unit 330 is substantially equal to the height of the reagent container 400 mounted on the reagent disk 301). The loaded reagent container 400 is carried into the reagent cool box 300. The reagent container loading / unloading unit 330 raises the reagent container 400 to a vertical position (refers to a position where the inspection engineer replaces the reagent container 400) in the vertical direction, so that the reagent container 400 is emptied. Are carried out from the reagent cold storage 300.

  The blower 340 circulates the air 10 inside the reagent cooler 300. More specifically, the blower 340 circulates inside the reagent cooler 300 as follows. First, the air 10 flowing in from the suction holes and the stirring holes is blown to the bottom surface (hereinafter referred to as the bottom surface) of the reagent cooler 300 through the blower 340. Next, the air 10 blows upward along the side surface of the reagent cool box 300. Next, the air 10 follows the upper surface. The air 10 is sucked by the blower 340 and then blown again to the bottom surface by the blower 340.

<Detailed configuration>
FIG. 2 is a vertical cross-sectional view of reagent cold storage 300 in the first embodiment. In FIG. 2, the blower 340 is schematically shown for convenience of explanation. As shown in FIG. 2, the reagent cold storage 300 has a reagent container carry-in / out unit 330 that is an elevator that moves up or down. In addition, a reagent disk 301 on which the reagent container 400 is placed, a reagent disk rotating mechanism 302 that rotates the reagent disk 301, and a blower 340 are provided inside the reagent cooler 300. The reagent disk 301 is provided in the vicinity of the side surface 390 and in the inner circumferential direction of the side surface 390. The reagent container loading / unloading unit 330 is provided adjacent to the reagent disk and is provided in the inner peripheral direction of the adjacent reagent disk 301.

  A reagent container 400 is mounted on the reagent container carry-in / out unit 330. The reagent container carry-in / out section 330 on which the reagent container 400 is mounted is raised or lowered in the vertical direction by a reagent container carry-out drive section (not shown).

  A reagent container moving mechanism (not shown) mounts the empty reagent container 400 on the reagent container carry-in / out unit 330. Thereafter, the reagent container carry-out drive unit raises the reagent container carry-in / out unit 330 to the raised position. After the reagent container loading / unloading unit 330 has moved up to the raised position, the laboratory technician mounts the reagent container 400 containing the reagent on the reagent container loading / unloading unit 330 in place of the empty reagent container 400.

  After the reagent container 400 is mounted, the reagent container carry-out drive unit lowers the reagent container carry-in / out unit 330 to the lowered position. As a result, the reagent container 400 is carried into the reagent cool box 300.

  Thereafter, the reagent container moving mechanism places the reagent container 400 on the reagent disk 301. The reagent disc 301 moves the reagent container 400 to the reagent suction position by rotating itself. As the reagent disk 301 rotates, the reagent container 400 placed on the reagent disk 301 moves to the reagent suction position along the inner periphery of the reagent cool box 300. Next, a reagent container lid opening / closing mechanism (not shown) opens the lid of the reagent container 400 at the reagent suction position.

  The stirring hole 304 is formed in a part of the upper surface of the reagent cool box 300. Further, the suction hole 305 is formed in a part of the upper surface of the reagent cool box 300. The reagent stirring rod 320 is inserted into the reagent container 400 through the stirring hole 304. Then, the reagent stirring rod 320 is pulled out upward after stirring the reagent contained in the reagent container 400 and stirring the reagent. After the reagent stirring bar 320 is pulled out, the reagent probe 310 is inserted into the reagent container 400 through the suction hole 305. Then, the reagent probe 310 sucks the reagent from the reagent container 400 in the inserted state.

  The blower 340 is fixed to a plate-like member extending vertically upward at a predetermined angle from the vicinity of the rotation axis of the reagent disk 301.

  The blower 340 sucks air from the suction port and blows the sucked air from the blower port. The suction port of the blower 340 is directed toward the suction hole 305 and the stirring hole 304. The suction port sucks air that has flowed from the suction hole 305 and the stirring hole 304.

  The blower 340 blows air sucked from the suction holes 305 and the stirring holes 304 by rotating the rotary blades around a rotation shaft (not shown). The blower opening of the blower 340 is directed obliquely downward, and blows air from the obliquely upward direction toward the bottom surface 370. The blower 340 may blow air from the obliquely upward direction toward the bottom surface 370 in the outer peripheral direction and downward in the vertical direction.

More specifically, the acute angle θ _α formed by the rotation axis of the blower 340 and the horizontal plane is greater than 0 degrees and less than 90 degrees. The position and angle of the air outlet of the air blower 340 are adjusted and provided inside the reagent cooler 300 so that the rotating shaft of the air blower 340 and the bottom surface 370 intersect each other.

Note that the air outlet of the blower 340 may be provided facing the bottom surface 370 so that the acute angle θ _α formed by the rotation axis of the blower 340 and the horizontal plane portion is 45 degrees. Further, the blower outlet of the blower may be provided facing the bottom surface 370 so that the acute angle θ _α formed by the rotation axis of the blower 340 and the horizontal plane portion is any angle of 30 degrees to 60 degrees. .

<Processing flow>
FIG. 3 is a diagram showing the order in which the reagent container 400 is moved in the first embodiment.

  First, in S <b> 301, the reagent container moving mechanism mounts the empty reagent container 400 on the reagent container carry-in / out unit 330.

  Next, in S302, the reagent container carry-out driving unit raises the reagent container carry-in / out unit 330 on which the reagent container 400 is mounted to the raised position.

  Next, in S <b> 303, the laboratory technician mounts a new reagent container 400 containing a reagent in the reagent container loading / unloading unit 330 instead of the empty reagent container 400.

  Next, in S304, the reagent container carry-out drive unit lowers the reagent container carry-in / out unit 330 to the lowered position.

  Next, in S <b> 305, the reagent container moving mechanism moves the reagent container 400 from the reagent container loading / unloading unit 330 to the reagent disk 301. As a result, the reagent container 400 is placed on the reagent disk 301.

  Next, in S306, the reagent disk 301 rotates itself to move the reagent container 400 to the reagent suction position.

<Air flow explanation>
FIG. 4 is a diagram for explaining the air flow generated inside the reagent cooler 300 when the reagent container carry-in / out section 330 in the first embodiment is between the raised position and the lowered position. 4 to 7, the blower 340 is schematically shown for convenience of explanation.

  As shown in FIG. 4, when the reagent container loading / unloading unit 330 is between the raised position and the lowered position, the reagent container loading / unloading unit 330 cannot block the loading / unloading port 360, and a gap is formed at the loading / unloading port 360. And air 10 may flow in from a crevice.

  First, the air 10 flows from the suction hole 305 and the stirring hole 304. Next, the air 10 is sucked by the blower 340.

  Next, the blower 340 blows the air 10 from obliquely above the bottom surface 370 toward the bottom surface 370. The air 10 blown onto the bottom surface 370 absorbs heat by the bottom surface 370. As a result, the heated air 10 can be prevented from being directly blown onto the reagent container 400.

  Further, when the air 10 is blown onto the bottom surface 370, moisture contained in the air 10 adheres to the bottom surface 370 and is condensed. As a result, the amount of moisture contained in the air 10 is reduced, and the air 10 flowing in from the suction hole 305 and the stirring hole 304 causes the inside of the side surface 390 (hereinafter referred to as a side surface) of the reagent cool box 300 and the inside of the upper surface 350 ( Hereinafter, it is possible to prevent the occurrence of condensation on the upper surface.

  Here, as shown in the enlarged vertical sectional view of the reagent cooler 300 shown in FIG. 7, the bottom surface 370 of the reagent container carry-in / out unit 330 is inclined by 1 to 2 degrees with respect to the horizontal plane part. Further, the bottom surface 370 is formed with a tapered portion (not shown) having a tapered shape, and the drainage portion 380 is formed at a position where the height of the tapered portion is minimum. The water adhering to the bottom surface 370 flows downward along the bottom surface 370 and is discharged from the drainage unit 380.

  Referring again to FIG. 4, part of the air 10 blown toward the bottom surface 370 is in a space between the side surface in the inner peripheral direction of the reagent container 400 and the side surface on the outer peripheral side of the reagent container loading / unloading unit 330. Along the upper surface along the upper surface. The remaining air 10 flows through the bottom surface 370 toward the outer peripheral direction. Thereafter, the air 10 that has reached the side surface 390 blows upward to the vicinity of the upper surface 350 along the space between the side surface 390 of the reagent cool box 300 and the side surface in the outer peripheral direction of the reagent container 400.

  Next, the air 10 blown up to the vicinity of the upper surface 350 flows horizontally near the upper surface 350 and below the loading / unloading port 360 in the inner circumferential direction. The air 10 that flows in the horizontal direction below the loading / unloading port 360 functions as an air curtain that prevents the air 10 from flowing in through the gap. Thereby, it becomes possible to prevent outside air from flowing in from the gap. Furthermore, it becomes possible to prevent the cold air inside the reagent cooler 300 from flowing out of the gap.

  Thereafter, the air 10 is sucked by the suction port of the blower 340 and is blown again from the obliquely upper side of the bottom surface 370 toward the bottom surface 370 by the blower port of the blower 340. By forming such an air flow in the reagent cooler 300, heat exchange between the reagent cooler 300 and the reagent container 400 is promoted, and the reagent contained in the reagent container 400 can be efficiently cooled. .

The position and angle at which the blower 340 is provided may be adjusted so that the air 10 is not blown directly onto the reagent container 400 placed on the reagent disk 301. For example, the position and angle of the blower 340 may be adjusted so that the blower 340 blows air from the bottom surface 370 below the reagent disk 301 toward the bottom surface 370 that is separated by a predetermined distance or more in the inner circumferential direction. In this case, the acute angle θ _α formed by the rotation axis of the blower 340 and the horizontal plane portion may be around 45 degrees, and only the position of the blower 340 may be adjusted.

  FIG. 5 is a diagram for explaining the air flow generated inside the reagent cooler 300 when the reagent container carry-in / out section 330 in the first embodiment is in the raised position.

  As shown in FIG. 5, when the reagent container loading / unloading unit 330 is in the raised position, a gap is formed at the loading / unloading port 360. And air 10 may flow in from a crevice.

  Even in this case, the air flow described with reference to FIG. 4 is formed inside the reagent cooler 300. The air 10 flowing in the horizontal direction below the loading / unloading port 360 functions as an air curtain that prevents the air 10 from flowing in through the gap. Thereby, it becomes possible to prevent outside air from flowing in from the gap.

  FIG. 6 is a diagram for explaining the air flow generated inside the reagent cooler 300 when the reagent container carry-in / out section 330 in the first embodiment is in the lowered position.

  As shown in FIG. 6, when the reagent container carry-in / out unit 330 is in the lowered position, there is no gap. Hereinafter, the air flow inside the reagent cooler 300 shown in FIG. 6 will be described.

  First, the air 10 flows from the suction hole 305 and the stirring hole 304. Next, the air 10 is sucked by the blower 340.

  Next, the blower 340 blows the air 10 to the bottom surface 370 and the reagent container 400 mounted on the reagent container carry-in / out unit 330.

  Next, the air 10 blown to the reagent container 400 mounted on the reagent container loading / unloading unit 330 blows upward along the inner circumferential side surface of the reagent container 400 mounted on the reagent container loading / unloading unit 330. Go up. Further, the air 10 blown to the bottom surface 370 flows through the bottom surface 370 toward the outer peripheral direction. Thereafter, the air 10 that has reached the side surface 390 moves upward along the space between the side surface 390 of the reagent cool box 300 and the side surface in the inner circumferential direction of the reagent container 400 placed on the reagent disk 301. It blows up to the vicinity.

  Next, the air 10 blown up to the vicinity of the upper surface 350 flows horizontally around the upper surface 350 toward the inner circumferential direction.

  Thereafter, the air 10 is sucked into the blower 340 and blown toward the bottom surface 370 and the reagent container 400 by the blower 340.

Note that the air 10 blown by the air blower 340 is not blown directly onto the reagent container 400 placed on the reagent container carry-in / out part 330 in a state where the reagent container carry-in / out part 330 is lowered to the lowered position. The position and angle at which the blower 340 is provided may be adjusted. For example, the position and angle of the blower 340 may be adjusted so that the blower 340 blows air from the bottom surface 370 below the reagent container loading / unloading unit 330 toward the bottom surface 370 that is separated by a predetermined distance or more in the inner circumferential direction. good. In this case, the acute angle θ _α formed by the rotation axis of the blower 340 and the horizontal plane portion may be around 45 degrees, and only the position of the blower 340 may be adjusted.

<Effect of Embodiment 1>
The blower 340 blows air from the obliquely upward direction to the bottom surface 370, so that it is possible to prevent dew condensation from occurring around the carry-in / out port 360.

  Further, the blower 340 blows air from the bottom surface 370 below the reagent disk 301 toward the bottom surface 370 that is separated by a predetermined distance or more in the inner circumferential direction, so that the heated outside air is directly placed on the reagent disk 301. It is possible to prevent the reagent container 400 from being sprayed.

  In addition, while the reagent container loading / unloading unit 330 is lowered to the lowered position, the blower 340 blows air from the bottom surface 370 below the reagent container loading / unloading unit 330 toward the bottom surface 370 that is a predetermined distance away in the inner circumferential direction. Thus, it is possible to prevent the heated outside air from being directly blown onto the reagent container 400 placed on the reagent container carrying-in / out unit 330.

  Further, the blower 340 sucks the outside air flowing in from the suction hole 305 and the stirring hole 304, so that the flowing outside air can be cooled.

  Further, by forming the drainage portion 380 at a position where the height of the tapered portion is minimum, the drainage portion 380 can be drained.

  Further, the blower 340 blows air toward the drainage unit 380, so that the air 10 can be efficiently guided to the loading / unloading port 360.

[Embodiment 2]
The second embodiment is different from the first embodiment in that a heat insulating member 800 is provided in the inner circumferential direction of the reagent disk 301 inside the reagent cooler 300 of the second embodiment. Hereinafter, the differences between the second embodiment and the first embodiment will be mainly described with reference to FIGS. 8, 10, and 11, the blower 340 is schematically illustrated for convenience of explanation.

  FIG. 8 is a vertical cross-sectional view of the reagent cooler in the second embodiment. The heat insulating member 800 shown in FIG. 8 is a plate-like member having a flat surface and extends upward in the vertical direction. The planar shape of the heat insulating member 800 is rectangular. The length in the longitudinal direction of the heat insulating member 800 is substantially the same as the height of the reagent container 400, and the length in the short direction of the heat insulating member 800 is substantially the same as the width of the reagent container 400. The material of the heat insulating member 800 is a resin material having a low thermal conductivity, for example, an ABS (acrylonitrile butadiene styrene) copolymer resin. The heat insulating member 800 is provided inside the reagent cold storage 300 in a state of being parallel to the side surface in the inner circumferential direction of the reagent container 400. Moreover, the heat insulation member 800 is provided in a state where the plane is directed in the direction in which the blower 340 exists. The heat insulating member 800 may be formed by densely gathering a large number of fibers.

  Hereinafter, the air flow inside the reagent cooler 300 shown in FIG. 8 will be described. First, the air 10 flows from the suction hole 305 and the stirring hole 304. Next, the air 10 is sucked by the blower 340.

  Next, the blower 340 blows the air 10 onto the flat surface and the bottom surface 370 of the heat insulating member 800. By the air 10 being blown onto the plane of the heat insulating member 800, moisture contained in the air 10 adheres to the plane of the heat insulating member 800 and is condensed. As a result, the amount of moisture contained in the air 10 is reduced, and it is possible to prevent dew condensation from occurring on the side surfaces and the upper surface 350 of the reagent cooler 300 due to the air 10 flowing from the suction holes 305 and the stirring holes 304. .

  The water adhering to the flat surface of the heat insulating member 800 falls to the bottom surface 370 through the heat insulating member 800, and then flows downward to the drainage unit 380 through the bottom surface 370. And water is discharged | emitted via the waste_water | drain part 380. FIG.

  Here, as shown in FIG. 9, the width of one end of the flat surface 901 of the heat insulating member 800 may be reduced as it approaches the bottom surface 370. Further, one end of the plane 901 may be pointed. As a result, water can be dropped from the tip of the plane 901 to the bottom surface 370 in a concentrated manner.

  Refer to FIG. 8 again. The air 10 blown to the heat insulating member 800 blows upward along the plane of the heat insulating member 800. Further, the air 10 blown to the bottom surface 370 blows upward along a space between the side surface 390 inside the reagent cooler 300 and the side surface on the outer peripheral side of the reagent container 400.

  Next, the air 10 blown up to the vicinity of the upper surface 350 flows in the horizontal direction near the upper surface 350 of the reagent cooler 300 and below the loading / unloading port 360.

  Thereafter, the air 10 is sucked into the blower 340 and is blown again onto the heat insulating member 800 and the bottom surface 370 by the blower 340 from obliquely above the bottom surface 370.

  By providing the heat insulating member 800 described above, an air flow can be formed inside the reagent cooler 300 even when the reagent container 400 is not placed on the reagent disk 301.

  Here, as shown in FIG. 10, the heat insulating member 800 is formed by sticking one flat surface of a metal plate 801 having substantially the same shape as the heat insulating material 802 to one flat surface of the rectangular heat insulating material 802. You may make it. The heat insulating member 800 is provided in a state where the other flat surface of the metal plate 801 faces the direction in which the blower 340 has the blower opening. Even when the temperature of the metal plate 801 is raised by the air 10 blown from the blower 340, the heat insulating material 802 blocks the heat from the metal plate 801. As a result, the temperature of the reagent contained in the reagent container 400 can be prevented from rising.

  Furthermore, as shown in FIG. 11, the side surface of the reagent container 400 formed in the direction in which the blower 340 exists may be formed by the heat insulating member 900. Further, a region where the air 10 is blown directly from the blower opening of the blower 340 may be formed by the heat insulating member 900. The material of the heat insulating member 900 has a low thermal conductivity, for example, polystyrene foam.

<Effect of Embodiment 2>
As described above, according to the second embodiment, in addition to the same effects as those of the first embodiment, the heat insulating member 800 is provided in the reagent cooler 300 in the inner circumferential direction of the reagent disk 301. The temperature of the reagent that has entered the reagent container 400 can be prevented from rising.

  Furthermore, by forming a part of the side surface of the reagent container 400 with the heat insulating member 900, it is possible to prevent the temperature of the reagent entering the reagent container 400 from rising without increasing the number of parts.

[Embodiment 3]
The third embodiment is different from the first embodiment in that, in the reagent cooler 300 according to the first embodiment, as shown in FIG. 12, the air sucked by the blower 340 is guided from below the reagent cooler 300. The rectifying member 1000 is provided.

  12 is a plan view of the reagent cooler 300 according to the third embodiment, FIG. 13 is a longitudinal sectional view of the reagent cooler 300 according to the third embodiment, and FIGS. 16 and 17 are provided with the rectifying member 1000 according to the third embodiment. The perspective view (with the guide member 1004 mentioned later) of an air blower is shown. The rectifying member 1000 is a member formed so as to surround the suction port of the blower 340. The rectifying member top surface plate 1001 covering the upper side, the rectifying member side surface plate 1002 surrounding the side surface, and the rectifying member bottom surface plate 1003 covering a part of the bottom surface. Consists of. The material of the rectifying member 1000 is, for example, aluminum. The rectifying member 1000 has a port for introducing air from the lower side of the reagent cold storage 300.

  Hereinafter, the air flow inside the reagent cooler 300 shown in FIGS. 12 and 13 will be described. First, as shown in FIG. 13, the air 10 flows from the suction hole 305 and the stirring hole 304. Next, the air 10 is sucked by the blower 340 and guided below the reagent cold storage 300. The induced air 10 is cooled by the bottom surface 370 of the reagent cooler 300, and the rectifying member top plate (described above, FIGS. 16 and 17), the rectifying member side plate (described above, FIGS. 16 and 17), 16 and 17), the suction port (described later, FIG. 17) of the rectifying member 1000 directed downward of the reagent cooler 300 is guided. The air 10 guided to the suction port (described later, FIG. 17) of the rectifying member 1000 is sucked by the blower 340 and blown to the bottom surface 370 of the reagent cooler 300. The air 10 blown to the bottom surface 370 of the reagent cool box 300 blows upward along a space between the side surface 390 inside the reagent cool box 300 and the side surface on the outer peripheral side of the reagent container 400.

  Next, the air 10 blown up to the vicinity of the upper surface 350 flows in the horizontal direction near the upper surface 350 of the reagent cooler 300 and below the loading / unloading port 360.

  Thereafter, the air 10 is sucked into the blower 340 and blown again from the obliquely upper side of the bottom surface 370 to the bottom surface 370 by the blower 340.

<Effect of Embodiment 3>
In addition to the air 10 flowing in from the stirring hole 304 and the suction hole 305 not being directly taken in by the blower 340, by blowing the cooled air 10 below the reagent cooler 300, It is possible to prevent the temperature of the reagent contained in the existing reagent container 400 from rising.

  From here, the form and effect of the other Example which can be considered in Embodiment 3 are described briefly.

  As shown in FIG. 14 (longitudinal sectional view of the reagent cold storage 300 in the third embodiment), a configuration including the heat insulating member 800 in the second embodiment may be used. By adopting such a configuration, it is possible to prevent direct application of wind to the reagent container 400 existing in the wind direction of the blower 340, and thus it is possible to further prevent the temperature of the reagent contained in the reagent container 400 from rising. .

  Further, as shown in FIG. 15 (a longitudinal sectional view of the reagent cold storage 300 in Embodiment 3), a configuration in which a guide member 1004 is provided in front of the blower 340 may be employed. The guide member 1004 is installed at a position where the air 10 from the blower 340 does not directly hit the reagent container 400. The perspective view of the air blower 340 with the rectifying member 1000 provided with the guide member 1004 is shown in FIGS. The clear flow member 1000 has a suction port 1005 that is a port for introducing air sucked into the suction port of the blower 340 from below the reagent cooler. The air 10 blown by the blower 340 is blown toward the bottom surface 370 of the reagent cooler 300 from a blowout port 1006 that is an ejection port formed by the guide member 1004. The air 10 blown to the bottom surface 370 of the reagent cool box 300 blows upward along a space between the side surface 390 inside the reagent cool box 300 and the side surface on the outer peripheral side of the reagent container 400. The air 10 blown up to the vicinity of the upper surface 350 flows in the horizontal direction near the upper surface 350 of the reagent cooler 300 and below the loading / unloading port 360. The air 10 is sucked into the blower 340 and is blown again onto the bottom surface 370 by the blower 340 from obliquely above the bottom surface 370. In the configuration including the guide member 1004 in FIG. 15, as in the configuration including the heat insulating member 800 illustrated in FIG. 14, it is possible to prevent direct application of air to the reagent container 400 existing in the wind direction of the blower 340. The temperature rise of the reagent that has entered the reagent container 400 can be further prevented. The advantage of the difference from the configuration in FIG. 14 is that the configuration can be made compact and the spread of the wind by the blower 340 can be prevented, so that the air 10 can be blown more reliably toward the bottom surface of the reagent cooler 300. It is in.

[Embodiment 4]
The fourth embodiment is different from the first embodiment in that the reagent cooler 300 of the first embodiment includes a cooling member 1100 for cooling the air 10 sucked by the blower 340 as shown in FIG. It is a point.

  Hereinafter, the air flow inside the reagent cold storage 300 shown in FIG. 18 will be described. First, the air 10 flows from the suction hole 305 and the stirring hole 304. Next, the air 10 is sucked by the blower 340 and guided below the reagent cold storage 300. The induced air 10 is cooled by the cooling fins 1101 of the cooling member 1100. Here, the cooling member 1100 (shown in detail in FIGS. 19 and 20) is formed of, for example, aluminum having high thermal conductivity, and is in thermal contact with a part of the reagent cooler 300 to be cooled (not shown). Or cooled by a Peltier element or the like (not shown). The cooling member 1100 is fixed to a fixed base (not shown) of the blower 340 with the cooling member top surface 1102 as an upper surface. Further, the number of cooling fins 1101 for cooling is not limited to three as shown in the figure as long as the flow of the air 10 is not significantly inhibited.

  The cooled air 10 is sucked by a blower 340 (illustrated by a dotted line in FIGS. 19 and 20) and blown to the bottom surface 370 of the reagent cooler 300. The air 10 blown to the bottom surface 370 of the reagent cool box 300 blows upward along a space between the side surface 390 inside the reagent cool box 300 and the side surface on the outer peripheral side of the reagent container 400.

  Next, the air 10 blown up to the vicinity of the upper surface 350 flows in the horizontal direction near the upper surface 350 of the reagent cooler 300 and below the loading / unloading port 360.

  Thereafter, the air 10 is sucked into the blower 340 and blown again from the obliquely upper side of the bottom surface 370 to the bottom surface 370 by the blower 340.

<Effect of Embodiment 4>
The air 10 flowing in from the stirring hole 304 and the suction hole 305 is cooled by the cooling member 1100 and then blown, so that the temperature rise of the reagent contained in the reagent container 400 existing in the wind direction of the blower 340 can be prevented. .

  Although not described in detail in the present specification, in the configuration including the heat insulating member 800 and the guide member 1004 shown in the second and third embodiments in the fourth embodiment, the reagent contained in the reagent container 400 is used. Needless to say, the temperature rise can be further prevented.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

10 air 120 sample probe 130 reaction vessel supply chamber 140 reaction vessel supply mechanism 150 reaction vessel table 160 reaction measurement device 210 sample vessel 220 reaction vessel 300 reagent cold storage 301 reagent disk 302 reagent disk rotation mechanism 303 center 304 stirring hole 305 suction hole 310 Reagent probe 320 Reagent stirring rod 330 Reagent container loading / unloading section 340 Blower 350 Upper surface 360 Loading / unloading port 370 Bottom surface 380 Drainage section 390 Side surface 400 Reagent container 800, 900 Thermal insulation member 801 Metal plate 802 Thermal insulation material 901 Plane 1000 Rectification member 1001 1002 Rectifying member side plate 1003 Rectifying member bottom plate 1004 Guide member 1005 Suction port 1006 Outlet 1100 Cooling member 1101 Cooling fin 1102 Cooling member top surface

Claims (12)

An automatic analyzer for analyzing a measurement sample obtained by mixing a sample and a reagent,
Having a reagent cold box for storing a reagent container containing the reagent;
Inside the reagent cooler, a blower is provided to blow air toward the bottom of the reagent cooler so as to circulate the air inside the reagent cooler ,
The blower outlet of the blower is directed obliquely downward toward the bottom surface of the reagent cool box,
The inside of the reagent cooler is provided with a rectifying member that surrounds the suction port of the blower and has a port for introducing air to be sucked into the suction port from a lower position inside the reagent cooler.
Automatic analyzer. The automatic analyzer according to claim 1,
Inside the reagent cooler, provided in a circumferential position near the side wall of the reagent cooler , and having a reagent disk on which the reagent container is placed ,
Before Symbol blower, of the bottom surface, is blown toward a bottom portion spaced a predetermined distance or more toward the inner periphery from the bottom portion of the lower of the reagent disk,
Automatic analyzer. The automatic analyzer according to claim 2,
The reagent refrigerator has Tei Ru reagent container transfer portion is provided at a position adjacent to the inner circumferential direction of the reagent disk,
The reagent container loading / unloading section is moved vertically to the lowered position to carry the reagent container into the reagent cold storage, and is raised to the raised position in the vertical direction to move the reagent container to the reagent cold storage. Unload from
In a state in which the reagent container transfer portion is lowered to the lowered position, the bottom surface the blower, of the bottom surface, spaced apart in the inner circumferential direction at a predetermined distance or more from the bottom portion of the lower of the reagent container transfer portion Blow air toward the part ,
Automatic analyzer. In the automatic analyzer as described in any one of Claims 1-3,
The upper surface of the reagent refrigerator has suction holes are formed,
Suction port of the blower is directed obliquely upward toward the suction hole to suck outside air flowing in from the previous SL suction holes,
Automatic analyzer. In the automatic analyzer as described in any one of Claims 1-4,
The bottom surface of the reagent refrigerator is tapered portions in which the tapered shape is formed, Ru Tei drainage portion is formed at a position where the height of the tapered portion becomes minimum, the automatic analyzer. The automatic analyzer according to claim 5,
The said air blower is an automatic analyzer which ventilates toward the said waste_water | drain part. The automatic analyzer according to claim 2,
Inside the reagent cool box, a heat insulating member is provided at a position adjacent to a side surface facing the blower among the side surfaces of the reagent container in the inner circumferential direction of the reagent disk,
The air blown from the blower toward the bottom surface also hits a part below the heat insulating member,
Automatic analyzer. The automatic analyzer according to claim 2 ,
Inside the reagent cool box, a heat insulating member is formed on the side surface of the reagent container in the inner circumferential direction of the reagent disk that faces the blower,
The automatic analyzer which the ventilation toward the said bottom face from the said air blower hits also a part below the said heat insulation member . The automatic analyzer according to claim 2 ,
Inside of the reagent refrigerator, forward from the air blowing port of Oite the blower in the inner circumferential direction of the reagent disk, a guide member for guiding so as not to be blown directly into the reagent container is provided, said blower is blown toward the bottom surface of the reagent refrigerator along the guide member from the blowing port,
Automatic analyzer. The automatic analyzer according to claim 1 ,
The rectifying member, surrounds the blower port of the blower, that air from the air blowing port having a jet orifice to limit the wind direction so as not to be blown directly on the side surface of the reagent container,
Automatic analyzer. The automatic analyzer according to claim 1, 7 or 9 ,
Wherein the interior of the reagent refrigerator, cooling members for cooling the air which the air blower is sucked from the suction port is provided,
Automatic analyzer. The automatic analyzer according to claim 11,
The cooling member includes an upper surface portion provided in the vicinity of the suction port of the blower and extending in a horizontal direction, and one or more plates or cooling fins extending vertically downward from the upper surface portion. Analysis equipment.

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