JP5255399B2 - Rotating tray and biochemical automatic analyzer equipped with the same - Google Patents

Description

  The present invention relates to a configuration of a biochemical automatic analyzer that reacts a specimen with a reagent and analyzes the result.

Patent document 1 discloses this kind of biochemical automatic analyzer. The automatic chemical analyzer of Patent Document 1 includes a reaction line in which reaction containers are arranged and transported in a row. Moreover, the automatic chemical analyzer of Patent Document 1 includes a sample sampling mechanism that dispenses a sample from a sample tray into a reaction container, and a reagent injection mechanism that dispenses a reagent from a reagent tray into a reaction container into which the sample has been injected. It is equipped with. The sample tray is installed on the outer periphery of the reagent tray, and is provided with a cold insulation means for keeping the reagent tray and the sample tray cold together. The sample tray is concentric with the reagent tray and is provided to include the reagent tray. In Patent Document 1, it is assumed that the sample tray and the reagent tray can be kept cool by the same cooling means with the above configuration, so that the apparatus can be made compact and economical.
Japanese Utility Model Publication No. 6-74967

  The configuration of Patent Document 1 is considered to have a certain degree of effect of downsizing the apparatus as compared with the configuration in which the sample tray and the reagent tray are arranged on separate circular tables. However, when the sample tray and the reagent tray are double arranged concentrically as in Patent Document 1, it is easy to increase the diameter of the turntable and it is still difficult to apply to a small biochemical automatic analyzer.

  The present invention has been made in view of the above circumstances. The purpose of the present invention is to allow a lot of specimen containers and reagent bottles to be stored in a compact space in a well-balanced manner in a rotating tray used in a biochemical automatic analyzer. It is to provide an easy configuration.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

According to the 1st viewpoint of this invention, the following structures are provided in the rotation tray used for a biochemical automatic analyzer. That is, the rotating tray includes a reagent bottle holding unit and a sample container holding unit. A plurality of the reagent bottle holders are arranged in the circumferential direction around the rotation center of the tray. In each of the reagent bottle holding portions, a bottle insertion port into which a reagent bottle can be inserted is formed elongated in the radial direction. A plurality of the specimen container holding portions are arranged in the circumferential direction around the rotation center. Each of the sample container holding portions is formed with a container insertion port into which the sample container can be inserted. The container insertion port is disposed between radially outer portions of the bottle insertion port. The sample container set in the sample container holding part is set in the reagent bottle holding part and arranged in a gap between the reagent bottles adjacent in the circumferential direction.

  With this configuration, it is possible to arrange many sample containers and reagent bottles in a compact space by effectively using the dead space in the radially outer portion when the reagent bottles are radially arranged. Therefore, it can contribute to miniaturization of the biochemical automatic analyzer. In addition, since the sample container and the reagent bottle are alternately arranged in the circumferential direction, the balance when rotating the rotating tray can be stabilized and the operation of the biochemical automatic analyzer can be made smooth.

  The rotating tray for the biochemical automatic analyzer is preferably configured as follows. That is, the rotating tray for the biochemical automatic analyzer includes a first tray and a second tray. The first tray has the reagent bottle holding unit. The second tray has the sample container holding portion and is configured to be removable from the first tray.

  With this configuration, it is possible to replace the sample container by removing only the second tray while leaving the first tray in the apparatus, thereby effectively reducing the work burden on the user. In the biochemical automatic analyzer, the specimen container is generally replaced more frequently than the reagent bottle, and thus the above configuration is particularly preferable.

  The rotating tray for the biochemical automatic analyzer is configured to be able to lift the first tray in a state of being coupled to the second tray by using a handle provided in the first tray. Is preferred.

  With this configuration, it is easy to carry the rotating tray while maintaining its integrity, so that workability can be further improved.

  The rotating tray for the biochemical automatic analyzer is preferably configured as follows. That is, the second tray includes a connecting portion that connects the plurality of sample container holding portions. The connecting portion is disposed above the first tray so as to partially overlap the bottle insertion opening.

  With this configuration, it is easy to reduce the size of the rotating tray, particularly in the radial direction. Further, since the reagent bottle can be prevented from coming out of the bottle insertion port by the connecting portion, the reagent bottle can be more reliably held on the rotating tray. On the other hand, since the bottle insertion opening is opened by removing the second tray from the first tray, the reagent bottle can be easily replaced.

  The rotating tray for the biochemical automatic analyzer preferably includes a regulating unit that regulates a phase in which the second tray is attached to the first tray.

  With this configuration, since the relationship between the first tray and the second tray can be regulated to be constant, it is possible to prevent the control of the rotating tray and the biochemical automatic analyzer from becoming complicated.

  In the rotating tray for the biochemical automatic analyzer, it is preferable that an opening is formed on the surface of the sample container holding part and the reagent bottle holding part facing outward in the radial direction of the tray.

  With this configuration, the identification information attached to both the sample container and the reagent bottle can be read at a time by the reading unit arranged so as to face the outer peripheral surface of the rotating tray. Therefore, simplification of configuration and control and reduction of reading time can be realized.

  According to the 2nd viewpoint of this invention, a biochemical automatic analyzer provided with the said rotation tray is provided.

  Accordingly, it is possible to provide a biochemical automatic analyzer that is small in size and capable of analyzing a large number of specimens and reagents at a time and that operates smoothly.

  Next, embodiments of the invention will be described. FIG. 1 is a schematic plan view showing an overall configuration of a biochemical automatic analyzer 1 including a rotating tray 24 according to an embodiment of the present invention.

  As shown in FIG. 1, the biochemical automatic analyzer 1 according to this embodiment includes a main body 11, and a reaction tank 21 and a sample reagent storage 22 are arranged inside the main body 11.

  A touch panel display (display unit, input unit) 14 is disposed on the front surface of the main body 11. The display 14 is configured to be able to display the progress of measurement, and the user can perform various operations such as setting measurement conditions and instructing start / stop of measurement by touching the touch panel of the display 14. Can do.

  The reaction tank 21 is configured to have a circular shape in plan view, and is configured to be able to set a plurality of cuvettes 2 as reaction containers arranged at equal intervals in the circumferential direction. The cuvette 2 is formed of a transparent synthetic resin into an elongated container having one end opened. The cuvette 2 is a so-called disposable cuvette that is discarded after use. The reaction tank 21 is rotationally driven intermittently by a predetermined pitch angle every predetermined time by a drive motor (not shown) as a reaction tank drive unit.

  A circular rotating tray 24 is arranged in the sample reagent storage 22. The rotating tray 24 is configured so that a plurality of specimen containers 3 containing specimens and reagent bottles 4 as reagent containers containing reagents can be alternately arranged in the circumferential direction. Details of the configuration of the rotating tray 24 will be described later.

  The upper side of the sample reagent storage 22 is covered with a lid cover 25. Therefore, the user can set or exchange the sample container 3 and the reagent bottle 4 by removing the lid cover 25 while the apparatus is stopped. Further, the sample reagent storage 22 is provided with an unillustrated cooler, so that the reagent and the sample set on the rotating tray 24 can be held at an appropriate temperature.

  A barcode reader (reading unit) 28 is disposed inside the main body 11 so as to face the outer peripheral surface of the rotating tray 24. The barcode reader 28 can identify the set sample container 3 and reagent bottle 4 by reading the contents of the barcode (identification display unit) attached to the sample container 3 and reagent bottle 4. .

  The rotating tray 24 is rotationally driven by a driving motor (not shown) as a sample reagent storage driving unit. The rotation tray 24 is appropriately rotated by this drive motor so that a desired one of a plurality of specimens and reagents can be supplied to a dispensing unit 41 described later. Further, by controlling the drive motor so that the desired sample container 3 or reagent bottle 4 faces the barcode reader 28, the bar of the sample container 3 and reagent bottle 4 set at an arbitrary position on the rotating tray 24 is displayed. The code can be read and identified.

  A photometric unit (absorbance measuring unit) 31 is provided on the side of the reaction vessel 21. The photometry unit 31 includes a light source unit 32 and a light receiving unit 33. When the cuvette 2 set in the reaction vessel 21 is located at a predetermined location (photometric position p) in the circumferential direction, the light source unit 32 emits light (for example, white halogen light) to the cuvette 2. Irradiate. The light receiving unit 33 enters the light that has passed through the cuvette 2 and measures its intensity. In addition, the light source unit 32 includes a plurality of unillustrated filters that transmit a specific wavelength. By switching the filters with an unillustrated drive motor, it is possible to measure the absorbance of light having a specific wavelength. Yes.

  The main body 11 includes a dispensing unit (sample dispensing unit, reagent dispensing unit) 41 for aspirating a sample or reagent in the sample reagent storage 22 and discharging a predetermined amount to the cuvette 2 of the reaction tank 21. The dispensing unit 41 includes a pivot shaft 42 arranged in the vertical direction, a pivot arm 43 attached to the upper end of the pivot shaft 42, a pipette 44 provided in a downward projecting manner at the tip of the pivot arm 43, It has.

  The turning shaft 42 is provided with a lifting mechanism and a turning mechanism (not shown), and the turning arm 43 and the pipette 44 can be raised and lowered or turned. An arc groove 26 is formed on the upper surface of the main body 11 and the upper surface of the lid cover 25 so as to follow a locus drawn by the tip of the pipette 44 as the pipette 44 turns.

  The arc groove 26 is formed so as to connect a predetermined place (dispensing position q) in the circumferential direction of the reaction vessel 21 and the sample reagent storage 22 in a plan view. The tip of the pipette 44 is moved in the arc groove 26 by the turning mechanism. Further, by driving the lifting mechanism at a predetermined position, the tip of the pipette 44 can be inserted into the sample container 3, the reagent bottle 4 or the cuvette 2 from above.

  A suction / discharge mechanism (not shown) is connected to the pipette 44 of the dispensing unit 41 so that the sample in the sample container 3 and the reagent in the reagent bottle 4 can be sucked and discharged to the cuvette 2 in the reaction tank 21. Yes. A pipette cleaning unit 61 is provided in the middle of the arc groove 26, and the pipette cleaning unit 61 can discharge an extra sample or reagent in the pipette 44 or clean the pipette 44. .

  The main body 11 includes a stirring unit 51 for stirring the reagent or specimen dispensed in the cuvette 2. The stirring unit 51 includes a swiveling shaft 52 arranged in the vertical direction, a swiveling arm 53 attached to the upper end of the swiveling shaft 52, a stirring rod 54 provided in a downward projecting manner at the tip of the swiveling arm 53, It has.

  The revolving shaft 52 is provided with an elevating mechanism and a revolving mechanism (not shown), and the revolving arm 53 and the stirring rod 54 can be moved up and down or revolved. An arc groove 27 is formed on the upper surface of the main body 11 so as to follow the locus drawn by the tip of the stirring rod 54 as the turning arm 53 turns.

  The circular arc groove 27 is provided so as to connect a predetermined place (stirring position r) in the circumferential direction of the reaction vessel 21 and a stirring cleaning unit 62 provided on the side of the reaction vessel 21 in a plan view. It has been. The tip of the stirring bar 54 moves inside the circular arc groove 27 by the turning mechanism. Moreover, the tip of the stirring rod 54 can be inserted into the cuvette 2 from above by driving the lifting mechanism at a predetermined position.

  A drive motor (not shown) is connected to the stirring rod 54 of the stirring unit 51, and the contents of the cuvette 2 are moved by rotating the stirring rod 54 with the tip of the stirring rod 54 inserted into the cuvette 2. It can be stirred. In addition, the agitation cleaning unit 62 is configured to be able to clean the agitation rod 54 to which a reagent or the like has adhered after agitation.

  A cuvette stocker 71 is provided on the upper surface of the main body 11. The cuvette stocker 71 is arranged at a position almost immediately above the reaction vessel 21 and can be stocked in a large number with the empty cuvettes 2 standing up. Further, a dust pod 74 is provided in the vicinity of the reaction tank 21 so that the used cuvette 2 can be discarded.

  Further, the main body 11 includes a cuvette transport unit 75. The cuvette transport unit 75 includes an arm mechanism 76 that can hold the cuvette 2 and is configured to transport the cuvette 2 among the reaction tank 21, the cuvette stocker 71, and the dust pod 74. ing.

  Specifically, the cuvette transporting section 75 can grab and take out one empty cuvette 2 on the cuvette stocker 71 and insert the cuvette 2 into the reaction tank 21 through the window 72 to set it. Further, the cuvette transport unit 75 is configured to be able to grasp the used cuvette 2 set in the reaction tank 21 and take it out through the window 72 and drop it onto the dust pod 74 for disposal.

  Next, the rotating tray 24 disposed in the sample reagent storage 22 will be described in detail with reference to FIGS. FIG. 2 is an external perspective view of the rotating tray 24. FIG. 3 is a perspective view showing a state in which the sample tray 82 is removed from the reagent tray 81. FIG. 4 is a plan view of the reagent tray 81 showing the positional relationship between the bottle insertion port 88 of the reagent tray 81 and the container insertion port 93 of the sample tray 82. FIG. 5 is a perspective view of the reagent bottle 4.

  In the following description, the term “radial direction” and “circumferential direction” mean the radial direction and the circumferential direction of the rotating tray 24 that is circular in plan view.

  As shown in FIG. 2, the rotating tray 24 includes a lower reagent tray (first tray) 81 and an upper sample tray (second tray) 82. The sample tray 82 is configured to be removable from the reagent tray 81 as shown in FIG.

  First, the reagent tray 81 will be described. The reagent tray 81 is made of a synthetic resin and includes a cylindrical base 83 disposed at the center of rotation of the tray as shown in FIGS. On the upper surface of the base 83, a handle 84 for lifting the entire rotary tray 24 and removing it from the main body 11 is formed.

  FIG. 4 is a plan view showing details of the reagent tray 81. As shown in FIG. 4, 15 reagent bottle holders 86 are arranged around the base 83 at equal intervals. The reagent bottle holding portions 86 are arranged side by side over 360 ° in the circumferential direction around the rotation axis of the rotation tray 24 in plan view.

  Each of the 15 reagent bottle holders 86 is formed with a bottle insertion opening 88 that opens upward. The reagent bottle 4 can be set in the reagent bottle holding portion 86 by inserting the reagent bottle 4 into the bottle insertion port 88 from above. However, in order to better illustrate the shape and arrangement of the bottle insertion port 88, FIG. 4 shows a state in which some of the 15 reagent bottles 4 are removed.

  An example of the reagent bottle 4 is shown in FIG. The reagent bottle 4 is configured by blow molding an appropriate synthetic resin. The reagent bottle 4 includes a container main body 48, and a first opening 49 and a second opening 50 are formed on the upper surface of the container main body 48. The pipette 44 of the dispensing part 41 can be inserted into each of the openings 49 and 50.

  The container body 48 of the reagent bottle 4 is formed in an elongated shape in plan view, the first opening 49 is disposed at one end of the reagent bottle 4, and the second opening 50 is disposed at the other end of the reagent bottle 4. The reagent bottle 4 has a shape that is slightly narrowed in plan view from the second opening 50 side toward the first opening 49 side.

  As shown in FIG. 4, each bottle insertion port 88 is formed to be elongated in the radial direction of the rotating tray 24. The radially inner portions of the bottle insertion ports 88 arranged in the circumferential direction are arranged so as to be adjacent in the circumferential direction with a partition wall having a predetermined thickness therebetween (however, this partition wall may be omitted). ). On the other hand, a gap of a predetermined size is formed between the radially outer portions of the bottle insertion port 88.

  With this configuration, the reagent bottle 4 is placed in the bottle insertion port 88 with the first opening 49 side (side where the width of the container main body 48 is narrow) facing the inner peripheral side of the rotating tray 24. Inserted from above. Thereby, the reagent bottle 4 is set in the reagent bottle holding part 86 of the reagent tray 81 (rotary tray 24).

  Here, the reagent bottle 4 is of a general-purpose type that is generally used in a biochemical automatic analyzer larger than that of the present embodiment. As described above, the rotation tray 24 of the present embodiment can set the general-purpose reagent bottle 4, so that it is not necessary to use a reagent bottle having a special shape, and the running cost and the like are reduced.

  However, such a general-purpose reagent bottle 4 has a narrow side and a wide side so that it can be arranged without gaps when a large number of reagent bottles 4 are arranged on a large-diameter circular tray used in a large apparatus. The amount of change in width in plan view is small. Therefore, in the case where 15 pieces are arranged in one turn as in the present embodiment, even if one end side (narrow side) of the reagent bottle 4 is arranged adjacent to each other on the inner side of the tray, the outer side of the tray Then, a gap in the circumferential direction is generated between the adjacent reagent bottles 4 (between the wide sides).

  Next, the sample tray 82 will be described. The sample tray 82 is made of a synthetic resin and includes a ring-shaped connecting portion 91 as shown in FIG. Around the connecting portion 91, 15 specimen container holding portions 92 are arranged at equal intervals. The sample container holding portions 92 are arranged side by side over 360 ° in the circumferential direction around the rotation axis of the rotation tray 24 in plan view.

  Each of the 15 specimen container holding portions 92 is formed with a container insertion port 93 that opens upward. The sample container 3 can be set in the sample container holding portion 92 by inserting the sample container 3 into the container insertion port 93 from above.

  The sample container 3 is configured in a shape similar to a test tube, and is elongated in the vertical direction. In order to stably hold the elongate sample container 3 as described above, the sample container holding portion 92 is formed so as to extend downward from the edge portion of the connecting portion 91 and has an elongated shape in the vertical direction. As shown in FIG. 2, the bottom of the sample container holding portion 92 and the bottom of the reagent bottle holding portion 86 are disposed at substantially the same height, while the container insertion port 93 is positioned higher than the bottle insertion port 88. Are arranged.

  As shown in FIGS. 3 and 4, a plurality of support projections 97 (six in the present embodiment) as support members protruding upward are formed at appropriate positions of the reagent tray 81. Each support protrusion 97 is disposed between the reagent bottle holders 86 adjacent to each other. Further, a plurality of support protrusions 97 are arranged side by side in the circumferential direction at intervals of two to three reagent bottle holding portions 86. A flat support surface is formed at the upper end of each support protrusion 97. When the sample tray 82 is attached to the reagent tray 81, the support surface is on the lower surface of the sample tray 82 (the lower surface of the connecting portion 91). It is comprised so that it may contact. Thereby, the height of the sample tray 82 (and hence the liquid level of the sample in the sample container 3) can be held at a predetermined position.

  Of the six support protrusions 97, two support protrusions 97 are each formed with a pin 89 as a connecting body so as to protrude upward from the center of the upper end surface thereof. On the other hand, the connecting portion 91 of the sample tray 82 is formed with an insertion hole 94 at a position corresponding to the pin 89. By inserting the pin 89 into the insertion hole 94, the reagent tray 81 and the sample tray 82 can be connected as shown in FIG. With this connection, most of the specimen container holding part 92 is inserted into the gap between the reagent bottle holding parts 86 arranged side by side.

  The two pins 89 (and the insertion hole 94) are arranged at asymmetric positions, and the mounting position of the sample tray 82 is set so that the sample tray 82 is mounted to the reagent tray 81 in a fixed positional relationship. regulate. In this sense, the pin 89 and the insertion hole 94 can be said to be a restricting portion (positioning portion) for positioning the sample tray 82 with respect to the reagent tray 81.

  In the sample tray 82 attached to the reagent tray 81 as described above, the container insertion port 93 of the sample container holding portion 92 is radially outside the bottle insertion port 88 as shown by the chain line in FIG. It will be arranged between the parts. As a result, a total of 30 sample containers 3 and reagent bottles 4 are arranged at equal intervals over the 360 ° range around the rotation center of the tray (around the base 83) on the outer periphery of the rotating tray 24. Become. Therefore, by using the rotating tray 24 of the present embodiment, it is possible to store a large number of reagent bottles 4 and sample containers 3 in the sample reagent container 22 by effectively utilizing a small space.

  In a state where the sample tray 82 is attached to the reagent tray 81, the connecting portion 91 of the sample tray 82 is disposed above the reagent tray 81 so as to partially overlap the bottle insertion port 88. Thereby, the upper and lower two-layer structure of the reagent tray 81 and the sample tray 82 is realized, and a configuration for enabling the sample tray 82 to be detached independently can be realized in a compact manner. In addition, since the connecting portion 91 functions as a cover that covers the upper side of the reagent bottle 4, the reagent bottle 4 can be more stably held on the rotating tray 24.

  Since the connecting portion 91 is disposed between the two openings 49 and 50 of the reagent bottle 4 attached to the bottle insertion port 88, the connecting portion 91 closes the openings 49 and 50 so that the pipette 44 There is no problem with suction. Further, the connecting portion 91 is formed in a ring shape having a through hole at the center thereof, and the handle 84 of the reagent tray 81 is exposed through the through hole, so that the sample tray 82 is attached to the reagent tray 81. The handle 84 can be easily used.

  In the present embodiment, the handle 84 is disposed at the center of the rotating tray 24, and by using the handle 84, the rotating tray 24 can be lifted without tilting (with good balance). However, the handle may be provided not around the center of the rotating tray 24 but around the base 83. For example, a handle is disposed between adjacent reagent bottle holding portions 86, a through hole is formed in the connecting portion 91 of the sample tray 82 at a position corresponding to the handle, and the handle protrudes upward through the through hole. It can also be configured to.

  Two second handles 95 are formed on the upper surface of the connecting portion 91. By using the second handle 95, only the sample tray 82 can be lifted and removed from the main body 11 of the biochemical automatic analyzer 1 as shown in FIG. Improves.

  The reagent bottle holding portion 86 in the reagent tray 81 is formed with a slit (opening) 87 that is elongated in the vertical direction on the surface facing the radially outer side. Through the slit 87, the barcode attached to the reagent bottle 4 can be exposed to the outer peripheral surface side of the rotating tray 24.

  Similarly, a slit (opening) 96 that is elongated in the vertical direction is formed in the sample container holding portion 92 of the sample tray 82 on the surface facing the radially outer side. Through the slit 96, the barcode attached to the sample container 3 can be exposed to the outer peripheral surface side of the rotating tray 24.

  Next, identification control of the sample container 3 and the reagent bottle 4 in the automatic biochemical analyzer 1 of the present embodiment will be described with reference to FIG. FIG. 6 is a flowchart showing the control executed for identifying the sample container 3 and the reagent bottle 4.

  The flow shown in FIG. 6 is executed at an appropriate timing by the control unit provided in the biochemical automatic analyzer 1. Although details of this control unit are not shown, a CPU as a calculation unit, a memory as a storage unit, and the like are provided.

  When the flow of FIG. 6 is executed, it is checked whether or not the biochemical automatic analyzer 1 is immediately after the power is turned on (S101). If it is determined that the power has just been turned on, the process proceeds to S104.

  If it is determined in S101 that it is not immediately after the power is turned on, it is checked whether or not the current state of the biochemical automatic analyzer 1 is immediately after the return from the standby mode (S102). The standby mode is a mode in which driving of each unit including the photometry unit 31 is stopped for power saving and the like because the measurement operation has not been performed for a long time although the power is on. If it is determined that it is immediately after returning from standby, the process proceeds to S104.

  If it is determined in S102 that it is not immediately after the return from standby, it is checked whether or not the state is immediately before starting the sample measurement (S103). If it is determined that the state is immediately before the measurement, the process proceeds to S104. If it is determined that the state is not immediately before the measurement, the flow of FIG. 6 is terminated.

  With the above processing, if the state of the biochemical automatic analyzer 1 is immediately after power-on, immediately after returning from the standby mode, or just before starting the sample measurement, the bar on and after S104 is displayed. A code reading process is performed.

  Next, the barcode reading process will be described. The controller first controls a drive motor (not shown) to rotate the rotating tray 24 (S104), and controls the barcode reader 28 every time the rotating tray 24 rotates by a predetermined pitch angle. The reader 28 is caused to read the barcode of the sample container 3 or the reagent bottle 4 currently facing (S105). Note that one pitch means the pitch angle of the sample container 3 and the reagent bottle 4 that are arranged in a total of 30 at regular intervals as described above, and is one turn at 30 pitches.

  Next, it is checked whether or not the rotating tray 24 has rotated one turn (S106), and if it is determined that it is less than one turn, the process returns to S104. If it is determined that the rotating tray 24 has rotated one turn, the flow in FIG. 6 is terminated.

  Through the processes of S104 to S106 described above, the barcode reader 28 alternately faces the sample container 3, the reagent bottle 4, the sample container 3, the reagent bottle 4, and so on while continuously rotating the rotating tray 24. The bar code can be read sequentially through the position. As a result, the barcode reader 28 for identifying the sample container 3 and the reagent bottle 4 can be shared. Further, since the barcodes of both the sample container 3 and the reagent bottle 4 can be read by only rotating the rotating tray 24 once, the configuration and control can be simplified and the reading time can be shortened.

  However, it is not always necessary to read the barcodes of both the sample container 3 and the reagent bottle 4 at a time. For example, depending on the situation, it is possible to read only the barcode of the sample container 3 that is frequently exchanged, or when only the reagent bottle 4 is replaced, only the barcode of the reagent bottle 4 can be read. it can. Further, it is possible to stop the rotating tray 24 every time it is rotated by one pitch and read the barcode with the barcode reader 28 in this state.

  As described above, the rotating tray 24 included in the biochemical automatic analyzer 1 of the present embodiment includes the reagent bottle holding unit 86 and the sample container holding unit 92. A plurality of reagent bottle holding portions 86 are arranged in the circumferential direction around the rotation center of the tray. In each of the reagent bottle holding portions 86, a bottle insertion port 88 into which the reagent bottle 4 can be inserted is formed to be elongated in the radial direction. A plurality of sample container holders 92 are arranged in the circumferential direction around the rotation center. In each of the sample container holding portions 92, a container insertion port 93 into which the sample container 3 can be inserted is formed. A container insertion port 93 is disposed between the radially outer portions of the bottle insertion port 88.

  Thereby, many sample containers 3 and reagent bottles 4 can be arranged in a compact space by effectively using the dead space in the radially outer portion when the reagent bottles 4 are radially arranged. Therefore, it is possible to contribute to the miniaturization of the biochemical automatic analyzer 1. In addition, since the sample containers 3 and the reagent bottles 4 are alternately arranged in the circumferential direction, the balance when rotating the rotating tray 24 is stabilized, and the operation of the biochemical automatic analyzer 1 is made smooth. Can do.

  Further, the rotating tray 24 of this embodiment includes a reagent tray 81 and a sample tray 82. The reagent tray 81 has a reagent bottle holding unit 86. The sample tray 82 has a sample container holding unit 92 and is configured to be removable from the reagent tray 81.

  Thereby, since only the sample tray 82 can be removed and the sample container 3 can be replaced while leaving the reagent tray 81 in the biochemical automatic analyzer 1, the work burden on the user can be effectively reduced. . In particular, in the biochemical automatic analyzer 1 as in the present embodiment, the sample container 3 is more frequently exchanged than the reagent bottle 4, and thus the above configuration is preferable.

  In addition, the rotation tray 24 of the present embodiment can lift the reagent tray 81 in a state of being coupled to the sample tray 82 by using the handle 84 provided in the reagent tray 81 (that is, the entire rotation tray 24 can be lifted). It is configured.

  As a result, it becomes easy to carry the rotating tray 24 in a state where the integrity of the rotating tray 24 is maintained, so that the workability can be further improved.

  In the rotating tray 24 of the present embodiment, the sample tray 82 includes a connecting portion 91 that connects a plurality of sample container holding portions 92. The connecting portion 91 is disposed above the reagent tray 81 so as to partially overlap the bottle insertion opening 88.

  As a result, the rotation tray 24 can be easily downsized particularly in the radial direction. Further, since the reagent bottle 4 can be prevented from coming out of the bottle insertion port 88 by the connecting portion 91, the reagent bottle 4 can be more securely held on the rotating tray 24. On the other hand, since the bottle insertion opening 88 is opened by removing the sample tray 82 from the reagent tray 81, the reagent bottle 4 can be easily replaced.

  Further, the rotating tray 24 of the present embodiment includes a pin 89 that regulates the phase in which the sample tray 82 is attached to the reagent tray 81.

  Accordingly, since the relationship between the reagent tray 81 and the sample tray 82 can be regulated to be constant, it is possible to prevent the control of the rotating tray 24 and the biochemical automatic analyzer 1 from being complicated.

  In the rotating tray 24 of the present embodiment, slits 87 and 96 are formed on the surfaces of the sample container holding unit 92 and the reagent bottle holding unit 86 that face the radially outer side of the tray, respectively.

  Thereby, the barcodes of both the sample container 3 and the reagent bottle 4 can be read at a time by the barcode reader 28 arranged so as to face the outer peripheral surface of the rotating tray 24. Therefore, the configuration can be simplified and the reading time can be shortened.

  Although the preferred embodiment of the present invention has been described above, the above configuration can be changed as follows, for example.

  In the above embodiment, the number of reagent bottle holders 86 (bottle insertion ports 88) is 15, and the number of sample container holders 92 (container insertion ports 93) is also 15. It can be changed to a rotating tray having a large number of outlets.

  In the above embodiment, the pin 89 is formed on the reagent tray 81 side and the insertion hole 94 is formed on the sample tray 82 side, but the pin is provided on the sample tray 82 side and formed on the reagent tray 81 side. It can also be changed to a configuration in which the pin is inserted into the insertion hole. Also, the number of pins and insertion holes is not limited to two, but may be one or three or more.

  Instead of the configuration in which the sample container 3 and the reagent bottle 4 are alternately arranged one by one in the circumferential direction, for example, the sample container 3, the reagent bottle 4, the reagent bottle 4, the sample container 3, the reagent bottle 4, the reagent bottle 4, As described above, it is possible to change to a configuration in which one sample container 3 and a plurality of reagent bottles 4 are alternately arranged in the circumferential direction. Moreover, it can change into the structure which arrange | positions the some sample container 3 between the reagent bottle 4 and the reagent bottle 4 adjacent in the circumferential direction.

  In the above-described embodiment, the disposable type so-called small analyzer has been described. However, the present invention is not limited to the application to the disposable type analyzer, and can be applied to a large analyzer. It goes without saying that it can contribute to the transformation.

  The reagent bottle 4 is not limited to a bottle having a shape as shown in FIGS. 3 to 5. For example, the reagent bottle 4 can be changed to a composite bottle that can store a plurality of reagents in one bottle, or the first opening 49 can be changed. It can be omitted and changed to a bottle having only one opening 50.

The schematic plan view which showed the whole structure of the biochemical automatic analyzer provided with the rotation tray which concerns on one Embodiment of this invention. The external appearance perspective view of a rotation tray. The perspective view which shows a mode that the sample tray was removed from the reagent tray. The top view of a reagent tray which shows the arrangement | positioning relationship of the bottle insertion port of a reagent tray, and the container insertion port of a sample tray. The perspective view of a reagent bottle. The flowchart which shows the control performed for identification of a sample container and a reagent bottle.

Explanation of symbols

1 Biochemical automatic analyzer 3 Sample container 4 Reagent bottle 24 Rotating tray 81 Reagent tray (first tray)
82 Sample tray (second tray)
84 Handle 86 Reagent bottle holder 87 Slit (opening)
88 Bottle outlet 89 Pin (Regulator)
91 Connecting portion 92 Specimen container holding portion 93 Container insertion port 95 Second handle 96 Slit (opening)

Claims (7)

In a rotating tray for an automatic biochemical analyzer,
A plurality of circumferentially arranged around the rotation center of the tray, each of which has a reagent bottle holding portion in which a bottle insertion port into which a reagent bottle can be inserted is formed elongated in the radial direction,
A plurality of circumferentially arranged around the center of rotation, each of which is provided with a sample container holding portion formed with a container insertion port into which a sample container can be inserted,
With
The container insertion port is disposed between the radially outer portions of the bottle insertion port ,
The biochemical automatic analyzer is characterized in that the sample container set in the sample container holding unit is set in the gap between the reagent bottles set in the reagent bottle holding unit and adjacent in the circumferential direction . Rotating tray. A rotating tray for a biochemical automatic analyzer according to claim 1,
A first tray having the reagent bottle holder;
A second tray having the sample container holding portion and configured to be removable from the first tray;
A rotating tray for a biochemical automatic analyzer characterized by comprising: A rotating tray for a biochemical automatic analyzer according to claim 2,
A rotating tray for a biochemical automatic analyzer, wherein the first tray can be lifted in a state of being coupled to the second tray by using a handle provided in the first tray. A rotating tray for a biochemical automatic analyzer according to claim 2 or 3,
The second tray includes a connecting portion that connects the plurality of sample container holding portions,
The rotating tray for a biochemical automatic analyzer, wherein the connecting portion is disposed above the first tray so as to partially overlap the bottle insertion opening. A rotating tray for a biochemical automatic analyzer according to any one of claims 2 to 4,
A rotating tray for a biochemical automatic analyzer, comprising a regulating unit that regulates a phase in which the second tray is attached to the first tray. A rotating tray for a biochemical automatic analyzer according to any one of claims 1 to 5,
A rotating tray for an automatic biochemical analyzer, wherein an opening is formed on a surface of the specimen container holding unit and the reagent bottle holding unit facing outward in the radial direction of the tray.   A biochemical automatic analyzer comprising the rotating tray according to any one of claims 1 to 6.

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