JP2010217040A - Automatic analyzer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic analyzer for reducing power consumed in a standby state, and preventing an apparatus from being damaged. <P>SOLUTION: In the automatic analyzer 1 driven by pulse motors and implementing a sample analysis, each mechanism section U for implementing each process among a plurality of successive processes related to the sample analysis has a pulse motor. The automatic analyzer 1 has: a configuration information storing section 33a for storing configuration information for configuring a current supplied to the pulse motor of each mechanism section U in the standby state so as to be interrupted or not; and a standby state controlling section 34a for making a control for supplying the current to the pulse motor of the mechanism section configured so as not to interrupt the supplied current, interrupting the current supplied to the pulse motor of the mechanism section configured so as to interrupt the supplied current, and causing each mechanism section U to be in the standby state, based on the configuration information in the configuration information storing section 33a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an automatic analyzer that performs sample analysis by performing a series of a plurality of processes.

  2. Description of the Related Art Conventionally, there is known an automatic analyzer that performs a sample analysis by having a pulse motor for each of a plurality of processes in a series of sample analysis processes, and each pulse motor driving each mechanism. Yes. In paragraph 0002 of Patent Document 1, when the automatic analyzer is put on standby, power consumed by the pulse motor of each mechanism unit is reduced by reducing the power supplied to drive each mechanism unit. Techniques for reducing power are disclosed.

JP 2000-105243 A

  However, in the conventional automatic analyzer, when the automatic analyzer is put on standby, the pulse motor is used to hold the movable part of each mechanism part so that it does not move. Had to be generated. When the current supplied to the pulse motor is cut off, the movable part may move due to the weight of the movable part or the contact between the movable part and the operator, and as a result, the mechanism part may be damaged.

  The present invention has been made in view of the above, and an object of the present invention is to provide an automatic analyzer that can prevent damage to the apparatus while reducing the power consumed during standby.

  In order to solve the above-described problems and achieve the object, an automatic analyzer according to the present invention includes a pulse motor in which each of a mechanism unit that performs a series of a plurality of processes related to sample analysis has a pulse motor. In an automatic analyzer that performs sample analysis by being driven by each pulse motor, based on the setting information, a storage unit that stores setting information as to whether or not to interrupt a current supplied to the pulse motor of each mechanism unit to be standby Control to supply the current to the pulse motor of the mechanism unit set to not cut off the supplied current, and to cut off the current supplied to the pulse motor of the mechanism unit of the setting to cut off the supplied current and to make each mechanism unit stand by And a control unit for performing the above.

  In the automatic analyzer according to the present invention, in the above invention, the control unit supplies power to be supplied to the pulse motor of the mechanism unit that is set not to cut off the supplied current when the mechanism unit is driven. It is characterized in that control is performed to make each of the mechanism units stand by by reducing the power as compared with electric power.

  Further, in the automatic analyzer according to the present invention, in each of the above-described inventions, each of the mechanism sections includes a reagent container holding mechanism section that holds a reagent container that stores a reagent, and a reaction that holds a reaction container that stores a liquid containing a sample. Either a container holding mechanism, a dispensing mechanism that dispenses liquid into the reaction container, an agitation mechanism that agitates the liquid containing the sample in the reaction container, or a washing mechanism that cleans the reaction container It is characterized by being.

  Moreover, the automatic analyzer according to the present invention is characterized in that, in the above-mentioned invention, the storage unit stores setting information indicating that the current supplied to the pulse motor of the reaction vessel holding mechanism unit to be standby is cut off. To do.

  In the automatic analyzer according to the present invention as set forth in the invention described above, the dispensing mechanism section includes a regulating member that regulates movement of the movable section of the dispensing mechanism section driven by a pulse motor, and the memory The unit stores setting information indicating that the current supplied to the pulse motor of the dispensing mechanism unit to be standby is cut off, and the control unit is configured to at least partly move the movable unit of the dispensing mechanism unit with the restriction member. The movement is moved to a restricted position, and the dispensing mechanism unit is put on standby.

  Further, in the automatic analyzer according to the present invention, in the above invention, the reaction vessel holding mechanism portion has a protruding portion protruding from an outer edge of the movable portion of the reaction vessel holding mechanism portion driven by a pulse motor, The dispensing mechanism unit is provided to be connected to a movable part of the dispensing mechanism unit, and has an engaging unit that engages with the protruding unit. The control unit includes the reaction container holding mechanism unit and the dispensing unit. When the injection mechanism is put on standby, the engaging portion and the protruding portion are engaged.

  According to the present invention, each of the mechanism sections that perform each of a plurality of processes in a series of sample analysis has a pulse motor, and each pulse motor drives each mechanism section to perform sample analysis automatically. In the analyzer, the storage unit stores setting information as to whether or not to cut off the current supplied to the pulse motor of each mechanism unit to be standby, and the control unit cuts off the supplied current based on the setting information. Since the control is performed to supply the current to the pulse motor of the mechanism unit set not to cut off the current supplied to the pulse motor of the set mechanism unit to cut off the supplied current, and to make each mechanism unit stand by. When the mechanism unit that does not cause damage to the apparatus even when the supplied current is cut off is put on standby, the current supplied to the pulse motor of the mechanism unit can be cut off. Therefore, it is possible to prevent damage to the apparatus while reducing power consumed during standby.

  Hereinafter, preferred embodiments of an automatic analyzer according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a schematic diagram showing the configuration of the automatic analyzer according to the first embodiment of the present invention. FIG. 2 is a diagram for explaining that each mechanism shown in FIG. 1 is driven by a pulse motor. As shown in FIG. 1, the automatic analyzer 1 dispenses a specimen (sample) and a reagent into a reaction container 13a, and optically measures a mixed liquid of the specimen and the reagent in the reaction container 13a. The measurement unit 10 to be performed and the control device 30 to control the automatic analyzer 1 including the measurement unit 10 and to analyze the measurement result in the measurement unit 10, and the measurement unit 10 and the control device 30 cooperate with each other. The biochemical analysis of the components of a plurality of specimens is performed continuously.

  The measurement unit 10 has a work table 20 on which a sample transfer unit 11, a reagent container holding mechanism unit 12, a reaction container holding mechanism unit 13, a sample dispensing mechanism unit 14, a reagent dispensing mechanism unit 15, A stirring mechanism unit 16, a photometry unit 17, and a cleaning mechanism unit 18 are provided.

  The sample transfer unit 11 stores and sequentially transfers a plurality of racks 11b holding sample containers 11a for storing samples.

  The reagent container holding mechanism 12 holds a reagent container 12a in which a reagent is stored. The reagent container holding mechanism 12 includes a wheel 12b that holds the reagent container 12a and a pulse motor PM that is attached to the center of the bottom surface of the wheel 12b and rotates the wheel 12b with a vertical line passing through the center as a rotation axis.

  The reaction container holding mechanism 13 holds a reaction container 13a that is a container for dispensing and reacting a specimen and a reagent. The reaction vessel holding mechanism unit 13 is attached to a wheel 13b that holds the reaction vessel 13a, a pulse motor PM that is attached to the center of the bottom surface of the wheel 13b, and that rotates the wheel 13b as a movable unit with a vertical line passing through the center as a rotation axis. Have

  The sample dispensing mechanism unit 14 dispenses the sample stored in the sample container 11a on the sample transfer unit 11 into the reaction container 13a. The sample dispensing mechanism unit 14 includes a probe 14a for aspirating or discharging a sample, an arm 14b for supporting the probe 14a, an intake / exhaust mechanism (not shown) realized by an intake / exhaust syringe, and an arm 14b as a movable unit. And a pulse motor PM that rotates in the vertical direction and rotates around a vertical line passing through its base end.

  The sample dispensing mechanism unit 14 includes a regulating member 14d. The regulating member 14d regulates the movement of the arm 14b driven by the pulse motor PM. As shown in FIG. 3, when the arm 14b is driven by the pulse motor PM and moves to a position P1 where the movement of the arm 14b on the restricting member 14d is restricted, the arm 14b is restricted to move up and down by the restricting member 14d. As shown in FIG. 4, the restricting member 14 d restricts the movement of the arm 14 b by directing the probe 14 a toward the side where the operator H is operating the automatic analyzer 1. The restricting member 14d only needs to be able to restrict the movement of the arm 14b without having to point the probe 14a to the side where the operator H operates the automatic analyzer 1.

  The reagent dispensing mechanism unit 15 dispenses the reagent contained in the reagent container 12a on the reagent container holding mechanism unit 12 into the reaction container 13a. The reagent dispensing mechanism unit 15 has the same configuration as the sample dispensing mechanism unit 14, and is realized by a probe 15a that sucks or discharges a reagent, an arm 15b that supports the probe 15a, and a suction / discharge syringe. And a pulse motor PM that causes the arm 15b as a movable portion to move up and down in the vertical direction and rotate around a vertical line passing through its base end. In addition, the reagent dispensing mechanism unit 15 includes a regulating member 15d. The regulating member 15d regulates the movement of the arm 15b, which is a movable part driven by the pulse motor PM, similarly to the regulating member 14d. As shown in FIG. 4, the restricting member 15 d restricts the movement of the arm 15 b by directing the probe 15 a toward the side where the operator H operates the automatic analyzer 1. The restricting member 15d only needs to be able to restrict the movement of the arm 15b without the probe 15a being directed to the side where the operator H operates the automatic analyzer 1.

  The stirring mechanism unit 16 is disposed along the outer periphery of the wheel 13b, and stirs the liquid containing the specimen in the reaction vessel 13a. The stirring mechanism unit 16 includes an arm 16a, a stirring bar 16b, and a pulse motor PM that causes the arm 16a to move up and down in the vertical direction and rotate around a vertical line passing through its base end. The stirring rod 16b is disposed in the vicinity of each apex of the arm 16a. The stirring bar 16b is rotated independently of the arm 16a by a driving unit (not shown).

  The photometry unit 17 measures the intensity and the like for each wavelength component of the light that has passed through the reaction vessel 13a. The photometry unit 17 includes a light emitting unit 17a and a light receiving unit 17b. The photometric unit 17 receives the analysis light emitted from the light emitting unit 17a and transmitted through the mixed solution of the sample and the reagent in the reaction container 13a conveyed to a predetermined photometric position, and the light receiving unit 17b receives the spectral intensity measurement. . The measurement result obtained by the photometry unit 17 is output to the control unit 34, and the control unit 34 performs an analysis operation based on the measurement result.

  The cleaning mechanism unit 18 is disposed along the outer periphery of the wheel 13b and cleans the inside of the reaction vessel 13a using a cleaning liquid. The cleaning mechanism 18 includes an arm 18a, a nozzle 18b disposed in the vicinity of each apex of the arm 18a, and a pulse motor PM that causes the arm 18a to move up and down in the vertical direction. The nozzle 18b is a suction nozzle that sucks the liquid in the reaction container 13a, a cleaning nozzle that supplies a cleaning liquid into the reaction container 13a, or the like. The reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, the reagent dispensing mechanism unit 15, the stirring mechanism unit 16, and the washing mechanism unit 18 are collectively referred to as a mechanism unit U. .

  Next, the control device 30 will be described with reference to FIG. The control device 30 includes an input unit 31, an output unit 32, a storage unit 33, and a control unit 34.

  The input unit 31 is realized by a keyboard, a mouse, or the like, and performs an input operation of information including information necessary for sample analysis and an operation instruction signal for instructing the operation of the automatic analyzer 1.

  The output unit 32 is realized by a display panel or the like, and outputs analysis contents including an analysis result, an alarm, and the like.

  The storage unit 33 is realized by various IC memories such as ROM and RAM such as flash memory that can be updated and stored, an information storage medium such as a built-in or data communication terminal, a CD-ROM, and a reading device thereof. In addition to the analysis results, the storage unit 33 stores various programs necessary for the operation of the automatic analyzer 1, data related to the execution of these programs, and the like.

  The storage unit 33 includes a setting information storage unit 33a. The setting information storage unit 33a stores setting information as to whether or not to interrupt the current supplied to the pulse motor PM of each mechanism unit U to be on standby. Specifically, the setting information storage unit 33a blocks the current supplied to the pulse motor PM of the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, and the reagent dispensing mechanism unit 15. Then, setting information indicating that the current supplied to the pulse motor PM of the stirring mechanism unit 16 and the cleaning mechanism unit 18 is not interrupted is stored.

  Note that this setting information is information obtained by checking each mechanism unit U to determine whether there is a possibility of damaging each mechanism unit U when the current supplied to the pulse motor PM is cut off and waited. Is based. That is, the setting information of the first embodiment is that the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, and the reagent dispensing mechanism unit 15 determine the current supplied to the pulse motor PM. This is based on the information that there is no risk of damaging each mechanism unit U even if it is shut off and placed on standby.

  The control unit 34 is realized by a CPU or the like having a control function and an arithmetic function, and controls each unit in the control device 30 and controls the driving of the measurement unit 10. In addition, the control unit 34 performs an analysis operation based on the measurement result acquired from the photometry unit 17 and generates analysis data of the sample. The control unit 34 includes a standby control unit 34a.

  Based on the setting information in the setting information storage unit 33a, the standby control unit 34a supplies the power supplied to the pulse motor PM of the mechanism unit that is set not to cut off the supplied current when the mechanism unit is driven. The control is performed so that each mechanism unit U stands by by cutting off the current supplied to the pulse motor PM of the mechanism unit set to cut off the supplied current. The power reduced compared to the power supplied when the mechanism unit is driven is the power obtained by the pulse motor PM as the holding torque for holding the movable part of the mechanism unit.

  FIG. 5 is a diagram illustrating an example of a temporal change in the power supplied to the pulse motor PM of the mechanism unit. FIG. 5 shows two graphs G1 and G2 together with time on the horizontal axis and power on the vertical axis. The standby control unit 34a reduces the electric power supplied to the pulse motor PM when the mechanism unit is made to stand by as compared to when the mechanism unit is driven as shown in the graph G1. Alternatively, the standby control unit 34a interrupts the current supplied to the pulse motor PM as shown in the graph G2 when the mechanism unit is put on standby.

  In the automatic analyzer 1 configured as described above, the reagent dispensing mechanism 15 sequentially supplies the reagents from the reagent container 12a to the plurality of reaction containers 13a that are transported along the circumferential direction by the rotating reaction container holding mechanism 13. Dispense. The reaction container 13a into which the reagent has been dispensed is transferred along the circumferential direction by the reaction container holding mechanism unit 13, and the samples are sequentially dispensed from the plurality of sample containers 11a held in the rack 11b by the sample dispensing mechanism unit 14. Is done.

  Thereafter, the reaction container 13a into which the specimen has been dispensed is transported to the stirring mechanism section 16 by the reaction container holding mechanism section 13, and the dispensed reagent and specimen are sequentially stirred and reacted. The reaction container 13a containing the mixed liquid of the specimen and the reagent in this way passes through the photometry part 17 when the reaction container holding mechanism part 13 rotates again, and transmits the analysis light emitted from the light emitting part 17a. To do. At this time, the analysis light transmitted through the mixed liquid of the specimen and the reagent is measured for optical characteristics and analyzed and calculated by the control unit 34. Then, the reaction vessel 13 a that has been analyzed is transported to the cleaning mechanism unit 18 by the reaction vessel holding mechanism unit 13, and the inside is cleaned by the cleaning mechanism unit 18. The automatic analyzer 1 continuously performs a series of a plurality of processes for analyzing the sample. Here, when the standby control unit 34 a obtains a signal indicating that the automatic analyzer 1 is to be standby from the input unit 31, the standby control unit 34 a performs a process of causing each mechanism unit U driven by the pulse motor PM to wait.

  Here, with reference to FIG. 6, description will be given of a processing procedure for determining each mechanism unit that cuts off the electric power supplied to the pulse motor PM and each mechanism unit that does not cut off and waiting each mechanism unit. First, the standby control unit 34a determines whether or not each mechanism unit U is a mechanism unit that interrupts the current supplied to the pulse motor PM (step S101). This determination is made based on the setting information stored in advance in the setting information storage unit 33a. That is, the standby control unit 34a determines that the current supplied to the pulse motor PM of the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, and the reagent dispensing mechanism unit 15 is cut off, It is determined that the current supplied to the pulse motor PM of the stirring mechanism unit 16 and the cleaning mechanism unit 18 is not cut off. When the mechanism unit cuts off the current supplied to the pulse motor PM (step S101: Yes), the standby control unit 34a performs a process of cutting off the current supplied to the pulse motor PM of the mechanism unit and waiting (step S102). ). On the other hand, when the mechanism unit does not cut off the current supplied to the pulse motor PM (step S101: No), the standby control unit 34a supplies the power supplied to the pulse motor PM when driving the mechanism unit. Compared to the above, a process of lowering and waiting is performed (step S103).

  Thereafter, the standby control unit 34a determines whether or not the process of waiting all the mechanism units U driven by the pulse motor PM has been completed (step S104). When the process of waiting all the mechanism units U driven by the pulse motor PM is completed (step S104: Yes), the standby control unit 34a ends this process. On the other hand, when the process of waiting all the mechanism units U driven by the pulse motor PM has not ended (step S104: No), the standby control unit 34a proceeds to step S101 and repeats the above-described process.

  Next, with reference to the flowchart shown in FIG. 7, the process sequence which makes a reaction container holding | maintenance mechanism part stand by is demonstrated. Since the processing procedure for waiting the reagent container holding mechanism unit 12 is performed in the same manner as the processing procedure for waiting the reaction container holding mechanism unit 13, the processing procedure for waiting the reaction container holding mechanism unit 13 will be described here. . The standby control unit 34a first rotates the wheel 13b (step S201), and determines whether or not the wheel 13b has moved to the standby position (step S202). When the wheel 13b has moved to the standby position (step S202: Yes), the standby control unit 34a stops the rotation of the wheel 13b (step S203). On the other hand, when the wheel 13b has not moved to the standby position (step S202: No), the standby control unit 34a repeats this determination process.

  Thereafter, the standby control unit 34a cuts off the current supplied to the pulse motor PM of the reaction container holding mechanism unit 13 (step S205), and ends this process. Here, even if the wheel 13 b of the standby reaction container holding mechanism 13 is rotated by an external force or the like, the specimen dispensing mechanism 14, the reagent dispensing mechanism 15, and the stirring mechanism 16 that may come into contact with the wheel 13 b. And since the washing | cleaning mechanism part 18 is hold | maintained in the standby position, there is no possibility that each mechanism part U will be damaged.

  Next, with reference to the flowchart shown in FIG. 8, a processing procedure for waiting the sample dispensing mechanism unit will be described. Since the processing procedure for waiting the reagent dispensing mechanism unit 15 is performed in the same manner as the processing procedure for waiting the sample dispensing mechanism unit 14, the processing procedure for waiting the sample dispensing mechanism unit 14 will be described here. . The standby control unit 34a first moves the arm 14b to the origin position (step S301). Thereafter, the standby control unit 34a lowers the arm 14b (step S302), and determines whether or not the arm 14b is lowered to the lowering stop position (step S303). The descending stop position is a position set so that the arm 14b enters the horizontal cut of the regulating member 14d shown in FIG. 3 by the rotation of the arm 14b. When the arm 14b is lowered to the lowering stop position (step S303: Yes), the standby control unit 34a stops the lowering of the arm 14b (step S304). On the other hand, when the arm 14b is not lowered to the descent stop position (step S303: No), the standby control unit 34a repeats this determination process.

  Thereafter, the standby control unit 34a rotates the arm 14b (step S305), and determines whether or not the arm 14b has rotated to the rotation stop position (step S306). The rotation stop position is a position set so that the arm 14b enters the vertical cut of the regulating member 14d shown in FIG. 3 by the downward movement of the arm 14b. When the arm 14b rotates to the rotation stop position (step S306: Yes), the standby control unit 34a stops the rotation of the arm 14b (step S307). On the other hand, when the arm 14b has not rotated to the rotation stop position (step S306: No), the standby control unit 34a repeats this determination process.

  Thereafter, the standby control unit 34a lowers the arm 14b (step S308), and determines whether or not the arm 14b has moved to the standby position (step S309). When the arm 14b has moved to the standby position (step S309: Yes), the standby control unit 34a stops the lowering of the arm 14b (step S310). Thereby, the arm 14b moves to the position P1 where the movement of the arm 14b on the restricting member 14d is restricted. On the other hand, when the arm 14b has not moved to the standby position (step S309: No), the standby control unit 34a repeats this determination process. Thereafter, the standby control unit 34a cuts off the current supplied to the pulse motor PM of the sample dispensing mechanism unit 14 (step S311), and ends this process. Here, even if an external force or the like is applied to the arm 14b of the sample dispensing mechanism unit 14 that is on standby, the arm 14b is restricted from moving by the restricting member 14d, so that the arm 14b moves and damages each mechanism unit U. There is no fear of it.

  In the first embodiment of the present invention, the setting information storage unit 33a stores setting information as to whether or not to interrupt the current supplied to the pulse motor PM of each mechanism unit U to be on standby, and the standby control unit 34a sets the setting. Based on the setting information in the information storage unit 33a, the power supplied to the pulse motor PM of the mechanism unit set to not cut off the supplied current is reduced as compared with the power supplied when the mechanism unit is driven, Since the control is performed to cut off the current supplied to the pulse motor PM of the mechanism unit set to cut off the supplied current and wait for each mechanism unit U, the device is damaged even if the current supplied to the pulse motor PM is cut off. When the mechanism unit that has no fear is put on standby, the current supplied to the pulse motor PM of the mechanism unit can be cut off. Therefore, it is possible to prevent damage to the apparatus while reducing power consumed during standby.

  In the first embodiment of the present invention, the current supplied to each pulse motor PM of the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, and the reagent dispensing mechanism unit 15 is supplied. Since it is shut off and kept on standby, the heat generation of these pulse motors PM can be reduced.

  In the first embodiment of the present invention, the restricting members 14d and 15d restrict the movement of the arm 14b with the probes 14a and 15a facing toward the side where the operator H operates the automatic analyzer 1. The maintenance of the probes 14a and 15a can be easily performed.

  In the first embodiment, the power supplied to the pulse motor PM of the mechanism unit set to stand by without interrupting the current supplied to the pulse motor PM is compared with the power supplied when the mechanism unit is driven. However, the present invention is not limited to this, and it is only necessary to supply the current to the pulse motor PM of the mechanism unit that does not cut off the current to be supplied to the pulse motor PM and make it stand by.

  In the first embodiment, the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, the reagent dispensing mechanism unit 15, the stirring mechanism unit 16, and the cleaning mechanism unit 18 are combined with a pulse motor PM. However, the present invention is not limited to this, and the automatic analyzer 1 only needs to have a mechanism that is driven by the pulse motor PM. For example, the reagent container holding mechanism part 12, the reaction container holding mechanism part 13, the sample dispensing mechanism part 14 and the reagent dispensing mechanism part 15 are driven by the pulse motor PM, and the stirring mechanism part 16 and the washing mechanism part 18 are driven by the pulse motor PM. It may be driven by other drive means. In this case, the standby control unit 34a cuts off the current supplied to the pulse motor PM to the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, and the reagent dispensing mechanism unit 15. Control is made to determine whether or not to wait.

  In the first embodiment, the restriction member 14d is provided on the work table 20. However, the present invention is not limited to this, and the standby control unit 34a moves at least a part of the arm 14b by the restriction member 14d. What is necessary is just to be able to move to the position regulated. For example, as shown in FIG. 9, the sample dispensing mechanism unit 14 is provided with a regulating member 14 d below the work table 20, and the standby control unit 34 a is a part of the arm 14 b positioned below the work table 20 ( The protruding piece 14c) is moved to the position P2 where movement is restricted by the restricting member 14d, and the specimen dispensing mechanism unit 14 is put on standby.

  In the first embodiment, the setting information storage unit 33a is supplied to the pulse motor PM of the reagent container holding mechanism unit 12, the reaction container holding mechanism unit 13, the sample dispensing mechanism unit 14, and the reagent dispensing mechanism unit 15. However, the present invention is not limited to this, and the pulse of each mechanism unit U to be put on standby is illustrated as an example of storing setting information that does not block the current supplied to the pulse motor PM of the stirring mechanism unit 16 and the cleaning mechanism unit 18. What is necessary is just to memorize | store the setting information of whether the electric current supplied to motor PM is interrupted | blocked. For example, as illustrated in FIG. 10, the stirring mechanism unit 16 includes a regulating member 16 d that regulates the movement of the arm 16 a that is a movable unit driven by the pulse motor PM of the stirring mechanism unit 16, and the standby control unit 34 a Then, a part of the arm 16a (protruding piece 16c) is moved to a position where the movement is restricted by the restricting member 16d, and the stirring mechanism unit 16 is made to stand by. In this case, the setting information storage unit 33a stores setting information indicating that the current supplied to the pulse motor PM of the stirring mechanism unit 16 is cut off.

(Embodiment 2)
Next, a second embodiment of the present invention will be described. In the automatic analyzer 1 of the first embodiment described above, the movement of the wheel 13b is not restricted when the reaction container holding mechanism unit 13 is put on standby. However, in the automatic analyzer 2 of the second embodiment, the reaction container holding mechanism unit is not regulated. When 41 is made to stand by, the movement of the wheel 13b is regulated. As shown in FIGS. 11 and 12, the reaction vessel holding mechanism 41 has a protruding portion 41a that protrudes from the outer edge of the wheel 13b. The sample dispensing mechanism 42 has an engaging portion 42a that is connected to the arm 14b and engages with the protruding portion 41a. The standby control unit 51a engages the engaging part 42a and the protruding part 41a when the reaction container holding mechanism part 41 and the sample dispensing mechanism part 42 are in standby.

  Here, with reference to the flowchart of FIG. 13, a processing procedure in which the movement of the wheel 13b of the reaction container holding mechanism 41 is regulated will be described. First, the standby control unit 51a rotates the wheel 13b of the reaction container holding mechanism unit 41 (step S401), and determines whether or not the wheel 13b has moved to the standby position (step S402). When the wheel 13b has moved to the standby position (step S402: Yes), the standby control unit 51a stops the rotation of the wheel 13b of the reaction container holding mechanism unit 41 (step S403). Thereby, the protrusion part 41a completes the movement to a predetermined position. On the other hand, when the wheel 13b has not moved to the standby position (step S402: No), the standby control unit 51a repeats this determination process.

  Thereafter, the standby control unit 51a performs a process of causing the sample dispensing mechanism unit 42 to wait (step S404). The process of waiting the sample dispensing mechanism unit 42 is performed in the same procedure as the process of waiting the sample dispensing mechanism unit 14 described above. As a result, when the arm 14b moves to the position P1, as shown in FIG. 12, the engaging portion 42a engages with the protruding portion 41a. Thereafter, the standby control unit 51a cuts off the current supplied to the pulse motor PM of the reaction container holding mechanism unit 41 (step S405), and ends this process. Here, even if an external force or the like is applied to the wheel 13b of the standby reaction container holding mechanism 41, the movement of the arm 14b is restricted by the restricting member 14d. The movement of 41a is restricted. For this reason, even if the current supplied to the pulse motor PM of the reaction vessel holding mechanism 41 is interrupted, the wheel 13b does not move.

  In the second embodiment of the present invention, the same effects as those of the first embodiment are obtained, and when the reaction container holding mechanism 41 and the sample dispensing mechanism 42 are put on standby, they are provided on the wheel 13b and the arm 14b, respectively. Since the protrusion 41a and the engaging part 42a are engaged and the movement of the protrusion 41a is restricted, when the reaction container holding mechanism 41 is put on standby, it is supplied to the pulse motor PM of the reaction container holding mechanism 41. Even if the current to be cut off is interrupted, the rotation of the wheel 13b can be restricted.

It is a model diagram which shows the structure of the automatic analyzer concerning Embodiment 1 of this invention. It is a figure explaining that each mechanism part shown in FIG. 1 is driven by a pulse motor. It is a figure explaining that the movement of the arm of a sample dispensing mechanism part is controlled by the control member shown in FIG. FIG. 2 is a diagram for explaining that the regulating member shown in FIG. 1 regulates the movement of the arm by directing the probe to the side located when the operator operates the automatic analyzer. It is a figure which shows an example of the time change of the electric power supplied to the pulse motor of each mechanism part shown in FIG. It is a flowchart which shows the process sequence which judges the mechanism part which interrupts | blocks the electric power supplied to a pulse motor, and the mechanism part which does not interrupt | block, and makes each mechanism part stand by. It is a flowchart which shows the process sequence which makes the reaction container holding | maintenance mechanism part shown in FIG. 1 wait. It is a flowchart which shows the process sequence which makes the sample dispensing mechanism part shown in FIG. 1 wait. It is a perspective view which shows the structure of the modification of the sample dispensing mechanism part shown in FIG. It is a perspective view which shows the structure of the modification of the stirring mechanism part shown in FIG. It is a model diagram which shows the structure of the automatic analyzer concerning Embodiment 2 of this invention. It is a principal part schematic diagram of the reaction container holding | maintenance mechanism part and sample dispensing mechanism part which were shown in FIG. It is a flowchart which shows the process sequence by which the wheel of the reaction container holding | maintenance mechanism part shown in FIG. 11 is controlled to move.

DESCRIPTION OF SYMBOLS 1, 2 Automatic analyzer 10,40 Measuring part 11 Specimen transfer part 11a Specimen container 11b Rack 12 Reagent container holding mechanism part 12a Reagent container 12b, 13b Wheel 13,41 Reaction container holding mechanism part 13a Reaction container 14,42 Sample dispensing Mechanism part 14a, 15a Probe 14b, 15b, 16a, 18a Arm 14c, 16c Protruding piece 14d, 15d, 16d Control member 15 Reagent dispensing mechanism part 16 Stirring mechanism part 16b Stirring rod 17 Photometric part 17a Light emitting part 17b Light receiving part 18 Washing Mechanism unit 18b Nozzle 20 Work table 30, 50 Control device 31 Input unit 32 Output unit 33 Storage unit 33a Setting information storage unit 34, 51 Control unit 34a, 51a Standby control unit 41a Projection unit 42a Engagement unit PM pulse motor

Claims (6)

In each of the mechanical units that perform each of a series of processes related to sample analysis, each has a pulse motor and is driven by each pulse motor to perform sample analysis.
A storage unit for storing setting information as to whether or not to interrupt the current supplied to the pulse motor of each mechanism unit to be standby;
Based on the setting information, the current is supplied to the pulse motor of the setting mechanism unit that does not cut off the supplied current, the current supplied to the pulse motor of the setting mechanism unit that cuts off the supplied current is cut off, and each of the mechanisms A control unit for performing control for waiting the unit,
The automatic analyzer characterized by having.   The control unit controls the standby of each mechanism unit by reducing the power supplied to the pulse motor of the mechanism unit set to not cut off the supplied current as compared to the power supplied when the mechanism unit is driven. The automatic analyzer according to claim 1, wherein:   Each of the mechanism parts includes a reagent container holding mechanism part for holding a reagent container for containing a reagent, a reaction container holding mechanism part for holding a reaction container for containing a liquid containing a sample, and a part for dispensing a liquid into the reaction container. The automatic analysis according to claim 1, wherein the automatic analysis is any one of an injection mechanism, a stirring mechanism that stirs a liquid containing a sample in the reaction container, and a cleaning mechanism that cleans the inside of the reaction container. apparatus.   The automatic analyzer according to claim 3, wherein the storage unit stores setting information indicating that the current supplied to the pulse motor of the reaction vessel holding mechanism unit to be standby is cut off. The dispensing mechanism has a regulating member that regulates the movement of the movable part of the dispensing mechanism driven by a pulse motor;
The storage unit stores setting information indicating that the current supplied to the pulse motor of the dispensing mechanism unit to be standby is cut off,
The said control part moves at least one part of the movable part of the said dispensing mechanism part to the position where a movement is controlled by the said control member, and makes the said dispensing mechanism part stand by. Automatic analyzer described in 1. The reaction vessel holding mechanism has a protruding portion that protrudes from the outer edge of the movable portion of the reaction vessel holding mechanism driven by a pulse motor,
The dispensing mechanism portion is provided to be connected to the movable portion of the dispensing mechanism portion, and has an engaging portion that engages with the protruding portion,
6. The automatic analyzer according to claim 5, wherein the control unit engages the engaging unit and the projecting unit when the reaction container holding mechanism unit and the dispensing mechanism unit are on standby.

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