Sample quality determination device

Abstract

To provide a mechanism to realize agitation of a specimen, confirmation of a specimen volume, and discrimination of a coagulate.SOLUTION: A first mechanism 34 agitates a specimen by tilting a container 42 for housing the specimen with a first rotary shaft 36 as an axis. A second mechanism 38 tilts a light source 30 which irradiates the specimen with light, an imaging unit 28 which is installed on the opposite side of the light source 30 with the specimen therebetween and takes an image of the specimen, and the container 42 with a second rotary shaft 40, which is different from the first rotary shaft 36 as an axis.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a specimen characteristic determining device. [Background technology]

[0002] A sample collected for a medical diagnosis is measured by a medical analyzer according to the test items. For example, when performing a complete blood count using a blood test device, blood is drawn from a blood collection tube containing the blood taken by blood sampling, and measurements are performed according to the blood count items.

[0003] Generally, pre-processing steps required for blood counting include stirring the sample contained in a container, checking the amount of sample in the container, and determining whether or not the sample contains a coagulate.

[0004] If these pre-processing steps are performed manually by a medical technician, there is a risk of increasing the burden on the medical technician, increasing the time required for the pre-processing steps, and causing human error, so efforts are being made to automate these pre-processing steps.

[0005] For example, Patent Document 1 describes a method for mechanically determining whether or not a sample in a container has coagulated. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 11-248853 Summary of the Invention [Problem to be solved by the invention]

[0007] Even if mixing is automated, the time required for mixing increases when there are a large number of samples. Therefore, it is desirable to realize a mechanism that can mix samples in a short time.

[0008] Furthermore, when a container has a label attached, it may be difficult for an automatic technique to accurately measure the amount of sample in the container, for example, it may not be possible to distinguish between the label and the liquid level of the sample and accurately detect the liquid level, resulting in an inaccurate measurement of the amount of sample.

[0009] Furthermore, if a sample contains a coagulant, abnormal values ​​may be measured during testing, or the aspirating nozzle may become clogged when the sample is aspirated. To avoid these problems, it is desirable to realize a mechanism that can automatically detect the presence of coagulants in a sample.

[0010] An object of the present invention is to provide a mechanism for agitating a sample, checking the sample volume, and distinguishing between coagulated samples. [Means for solving the problem]

[0011] One aspect of the present invention includes a first mechanism for stirring a specimen by tilting a container containing the specimen about a first rotation axis, a light source for irradiating the specimen with light, an imaging unit for imaging the specimen, the imaging unit being disposed on the opposite side of the light source with the specimen in between, and a second mechanism for tilting the container about a second rotation axis different from the first rotation axis; a support portion that supports the first rotating shaft and the second rotating shaft; The specimen characteristic determination device includes: Effect of the Invention

[0012] According to one aspect of the present invention, a mechanism for stirring a sample, checking the amount of the sample, and distinguishing between coagulated bodies can be provided. [Brief description of the drawings]

[0013] [Figure 1] 1 is a block diagram showing functions of a sample characteristic determination device according to an embodiment; [Diagram 2] FIG. 2 is a perspective view showing a configuration of a vibration section according to the embodiment. [Diagram 3] FIG. 2 is a perspective view showing a configuration of a vibration section according to the embodiment. [Figure 4]FIG. 2 is a perspective view showing a configuration of a portion of a vibration section according to the embodiment. [Diagram 5] FIG. 1 shows a container and a specimen. [Figure 6] FIG. 2 is a perspective view showing a configuration of a vibration section according to the embodiment. [Figure 7] FIG. 2 is a diagram showing an imaging unit and a container. [Figure 8] FIG. [Figure 9] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Functions of a specimen characteristic determining device according to an embodiment will be described with reference to Fig. 1. Fig. 1 is a block diagram showing an example of the configuration of a specimen characteristic determining device according to an embodiment.

[0015] The specimen characteristic determination device according to the embodiment is a device that measures abnormalities in specimen characteristics, such as blood coagulation, based on shadows formed in an image formed by transmitted light.

[0016] The specimen characteristic discrimination device according to the embodiment includes a vibration section 10, a device control section 12 that controls devices constituting the vibration section 10, a discrimination section 14, and a display section 16 that displays the discrimination result.

[0017] The vibration unit 10 includes a tumbling mixing mechanism and a swinging photography mechanism, and is a mechanism that realizes the tumbling movement and the swinging photography.

[0018] The inversion mixing mechanism is a mechanism that realizes an inversion movement. For example, a method of mixing a sample is inversion mixing. Inversion mixing is mixing a sample by turning it upside down. Inversion movement is a movement for mixing a sample by inverting a container that holds the sample. In other words, the inversion mixing mechanism inverts the container to mix the sample held in the container.

[0019] The rocking photography mechanism is a mechanism for realizing rocking photography. Rocking photography is the act of photographing a specimen while rocking a container. In other words, the rocking photography mechanism photographs the specimen contained in the container while rocking the container.

[0020] The device control unit 12 includes an imaging control unit 18, a light source control unit 20, a drive control unit 22, and a system control unit 24.

[0021] The imaging control unit 18 controls the imaging unit 28 (see FIG. 2) included in the vibration unit 10. Imaging data output from the imaging unit 28 is input to the imaging control unit 18. The imaging control unit 18 converts, for example, compressed imaging data into uncompressed video data such as RGB signals, and outputs an imaging control signal to the system control unit 24 for performing exposure and focus adjustments, etc., according to the brightness and gradation of the video. The imaging control signal is input to the system control unit 24.

[0022] The system control unit 24 outputs a light source control signal for controlling the brightness of the light source 30 (see FIG. 2) for illuminating the specimen to the light source control unit 20. The light source control signal is input to the light source control unit 20. The system control unit 24 also outputs a drive control signal for controlling a motor provided in the first mechanism 34 (see FIG. 2) and a drive control signal for controlling a motor provided in the second mechanism 38 (see FIG. 2) to the drive control unit 22. The drive control signals are input to the drive control unit 22.

[0023] The light source control unit 20 controls the brightness of the light source 30 according to the light source control signal. For example, the light source control unit 20 controls the brightness of the light source 30 by outputting a light source voltage signal for controlling the brightness of the light source 30 to the light source 30. For example, when a lack of light or halation occurs, the imaging control unit 18 adjusts the exposure by the aperture of the imaging unit 28 or the like. When the lack of light or halation cannot be eliminated by this adjustment, the light source control unit 20 adjusts the amount of light output by the light source 30. Of course, this is only one example of control, and other controls may be performed.

[0024] The drive control unit 22 controls the motors provided in the first mechanism 34 and the second mechanism 38 in accordance with the drive control signal. For example, the drive control unit 22 controls each motor by outputting a motor voltage signal for driving the motor provided in each of the first mechanism 34 and the second mechanism 38 to each motor.

[0025] The configuration of the vibration section 10 will be described below with reference to Figures 2 and 3. Figures 2 and 3 are perspective views showing the vibration section 10.

[0026] The vibration section 10 includes a support section 26, an imaging section 28, a light source 30, a gripping mechanism 32, a first mechanism 34, and a second mechanism 38. The first mechanism 34 includes a first rotating shaft 36 and a motor. The second mechanism 38 includes a second rotating shaft 40 and a motor. A container 42 is gripped by the gripping mechanism 32.

[0027] The gripping mechanism 32 and the first mechanism 34 constitute a tumbling and mixing mechanism. The imaging unit 28, the gripping mechanism 32, the light source 30, and the second mechanism 38 constitute a swinging photographing mechanism.

[0028] The support unit 26 is a member that supports the first rotating shaft 36 and the second rotating shaft 40. For example, the support unit 26 includes frames 44, 46 that are spaced apart from each other, and the first rotating shaft 36 and the second rotating shaft 40 are arranged from the frame 44 to the frame 46. In other words, one end of each of the first rotating shaft 36 and the second rotating shaft 40 is connected to the frame 44, and the other end of each of the first rotating shaft 36 and the second rotating shaft 40 is connected to the frame 46.

[0029] The imaging unit 28, the holding mechanism 32, and the light source 30 are arranged in that order. That is, the holding mechanism 32 is arranged between the imaging unit 28 and the light source 30. In other words, the imaging unit 28 is arranged on one side of the holding mechanism 32 (i.e., one side of the container 42), and the light source 30 is arranged on the other side of the holding mechanism 32. The container 42 is arranged between the imaging unit 28 and the light source 30.

[0030] The positional relationship between the imaging unit 28, the holding mechanism 32, and the light source 30 is fixed. Since the container 42 is held by the holding mechanism 32, the positional relationship between the imaging unit 28, the container 42, and the light source 30 is fixed. In other words, the positional relationship between the imaging unit 28, the sample contained in the container 42, and the light source 30 is fixed.

[0031] The imaging unit 28 is, for example, a color camera, an infrared camera, an ultraviolet camera, or the like.

[0032] The light source 30 is controlled by a light source voltage signal output from the light source control unit 20. The light source 30 is, for example, an infrared light source or a visible light source.

[0033] The light emitted from the light source 30 is irradiated onto the specimen in the container 42. The light that has passed through the specimen is incident on the imaging section 28. In this manner, the imaging section 28 captures an image of the specimen in the container 42.

[0034] The gripping mechanism 32 grips a plurality of containers 42. The configuration of the gripping mechanism 32 will be described in detail later.

[0035] The imaging unit is fixed to the support 26. The gripping mechanism 32 and the light source 30 are fixed to a first rotation shaft .

[0036] The first mechanism 34 tilts the gripping mechanism 32 and the light source 30 around the first rotating shaft 36 by the driving force of a motor provided in the first mechanism 34. In other words, the first rotating shaft 36 is rotated by the motor, thereby tilting the gripping mechanism 32 and the light source 30 fixed to the first rotating shaft 36. The container 42 gripped by the gripping mechanism 32 is tilted by tilting the gripping mechanism 32. This realizes mixing by inversion of the sample.

[0037] The drive control unit 22 controls the rotation of the first rotating shaft 36 by controlling a motor provided in the first mechanism 34, thereby controlling the rotation of the gripping mechanism 32 and the light source 30. For example, the range of the rotation angle of the first rotating shaft 36, the angular velocity, the angular acceleration, and the number of rotations are set as first rotation parameters of the first mechanism 34. The drive control unit 22 rotates the first rotating shaft 36 in accordance with the first rotation parameters. The first rotation parameters are set, for example, by an operator.

[0038] The range of the tilt angle (i.e., rotation angle) of the gripping mechanism 32 and the light source 30 is 0° to 180°. That is, the gripping mechanism 32 and the light source 30 can be tilted in the range of 0° to 180° by rotating the first rotating shaft 36. Note that this range of rotation angle is merely an example, and other ranges may be adopted. The number of rotations is the number of times of inversion mixing.

[0039] The second mechanism 38 tilts the entire vibration unit 10 around the second rotation shaft 40 by the driving force of a motor provided in the second mechanism 38. In other words, the entire vibration unit 10 is tilted by rotating the second rotation shaft 40 by the motor. As a result, the imaging unit 28, the light source 30, and the gripping mechanism 32 are tilted around the second rotation shaft 40.

[0040] The drive control unit 22 controls the rotation of the second rotating shaft 40 by controlling a motor provided in the second mechanism 38, thereby controlling the overall rotation of the vibration unit 10. For example, the range of the rotation angle of the second rotating shaft 40, the angular velocity, the angular acceleration, and the number of rotations are set as second rotation parameters of the second mechanism 38. The drive control unit 22 rotates the second rotating shaft 40 in accordance with the second rotation parameters. The second rotation parameters are set, for example, by an operator.

[0041] The range of the tilt angle (i.e., rotation angle) of the vibration section 10 is 0° to 180°. That is, the entire vibration section 10 can be tilted in the range of 0° to 180° by rotating the second rotation shaft 40. Note that this range of rotation angle is merely an example, and other ranges may be adopted. The number of rotations is the number of times that the entire vibration section 10 is rotated.

[0042] The operation of the vibration section 10 will now be described.

[0043] The upside-down mixing will be described with reference to Fig. 2 to Fig. 5. Fig. 4 is a perspective view showing a part of the configuration of the vibration unit 10. Specifically, Fig. 4 shows the first rotating shaft 36, the gripping mechanism 32, and the light source 30. Fig. 5 is a diagram showing a container 42 and a sample.

[0044] 2 and 3 show the gripping mechanism 32 and the light source 30 when the rotation angle is 0°. Fig. 4 shows the gripping mechanism 32 and the light source 30 when the rotation angle is 180°. For example, the sample is stirred by tilting the gripping mechanism 32 multiple times within a rotation angle range of 0° to 180°.

[0045] Fig. 5 shows the state of mixing by inversion. Fig. 5(a) shows the sample before mixing. Fig. 5(b) shows the sample when mixing by inversion is being performed. Fig. 5(c) shows the sample after mixing. Blood, which is an example of a sample, is contained in container 42.

[0046] As shown in Fig. 5(a), before mixing (i.e., before mixing by inversion), blood naturally separates into a plasma component 42a and a blood clot component 42b. Fig. 5(b) shows the container 42 and blood during mixing by inversion. The blood is mixed by inversion, and as shown in Fig. 5(c), a mixed sample 42c is obtained.

[0047] The oscillation photography will be described with reference to Figures 2, 3, 6, and 7. Figure 6 is a perspective view showing the vibration unit 10. Figure 7 shows the imaging unit 28 and the container 42.

[0048] 2 and 3 show the vibration section 10 when the rotation angle is 0°, and Fig. 6 shows the vibration section 10 when the rotation angle is 180°.

[0049] 7 shows the container 42 and the imaging unit 28 at each rotation angle. Arrow A indicates the rotation direction. The imaging unit 28, the light source 30, and the gripping mechanism 32 are rotated around the second rotation shaft 40 without changing the positional relationship between the imaging unit 28, the light source 30, and the gripping mechanism 32. Therefore, the imaging unit 28, the light source 30, and the container 42 are rotated around the second rotation shaft 40 without changing the positional relationship between the imaging unit 28, the light source 30, and the container 42, and the specimen in the container 42 is imaged by the imaging unit 28. The imaging unit 28 images the specimen in the container 42 during the rotation.

[0050] The oscillation photography will be described in detail. A sample 42d such as blood is contained in a container 42. A label is attached to the outer peripheral surface of the container 42. Fig. 7 shows a liquid surface 42e of the sample 42d and an end 42f of the label. The liquid surface 42e corresponds to an example of the boundary of the sample 42d.

[0051] Reference numeral 45a indicates the state of the container 42 when the rotation angle is 0°. When the rotation angle is 0°, the end 42f of the label may be erroneously determined to be the liquid surface of the sample 42d. In other words, in this state, it is difficult to distinguish between the liquid surface 42e and the end 42f of the label, and the end 42f may be erroneously determined to be the liquid surface 42e.

[0052] When the imaging unit 28, the light source 30, and the gripping mechanism 32 are rotated, the container 42 tilts as indicated by the reference symbol 45b, the specimen 42d moves in the container 42, and the liquid surface 42e moves. When the imaging unit 28, the light source 30, and the gripping mechanism 32 are further rotated, the container 42 tilts further as indicated by the reference symbols 45c and 45d, respectively, and the liquid surface 42e moves further. When the container 42 tilts in this way, the position of the liquid surface 42e in the container 42 gradually changes. On the other hand, the position of the end 42f of the label does not change. In this way, the position of the end 42f of the label does not change, and the position of the liquid surface 42e changes, so that the end 42f of the label and the liquid surface 42e can be distinguished and identified.

[0053] The discrimination unit 14 discriminates the liquid level 42e (i.e., the boundary of the specimen) based on an image generated by imaging unit 28 capturing an image while imaging unit 28, light source 30, and container 42 are tilted. For example, discrimination unit 14 discriminates that a moving portion in an image generated by rocking imaging is the liquid level 42e. This allows the liquid level 42e to be discerned even when a container 42 with a label attached is used, thereby enabling the specimen amount to be measured accurately.

[0054] A method for determining a coagulated body will be described with reference to FIG. 8. As shown in FIG. 8(a) and FIG. 8(b), a specimen 42d is contained in a container 42. The specimen 42d shown in FIG. 8(a) does not contain a coagulated body. The specimen 42d shown in FIG. 8(b) contains a coagulated body 42g. When the oscillation photography is performed, the behavior of the specimen 42d differs between when the specimen 42d does not contain a coagulated body and when the specimen 42d contains a coagulated body. For example, the movement of the specimen 42d is delayed or the specimen 42d is stationary. The state is photographed by the imaging unit 28, and the discrimination unit 14 analyzes the image generated by the photography to determine the presence or absence of a coagulated body in the specimen 42d. When the movement of the specimen 42d is delayed or the specimen 42d is stationary, the discrimination unit 14 determines that the specimen 42d contains a coagulated body. The presence or absence of a coagulated body may be determined by image analysis performed by artificial intelligence (AI).

[0055] The gripping mechanism 32 will be described with reference to Fig. 9. Fig. 9 is a perspective view showing the gripping mechanism 32.

[0056] The gripping mechanism 32 includes a first member 47 and a second member 48. A plurality of grooves 50 are formed in the first member 47. For example, a block member 52 having V-shaped grooves 50 formed therein is installed in the first member 47. A container 42 is placed in each groove 50. In the example shown in FIG. 9, five block members 52 are arranged in a straight line, and five containers 42 are gripped by the gripping mechanism 32 at the same time.

[0057] The second member 48 is made of an elastic body such as rubber, and sandwiches the containers 42 placed in the grooves 50 together with the first member 47. The second member 48 is a rectangular parallelepiped member having flat surfaces.

[0058] Further, a spring 54 is provided on the first member 47. The spring 54 is an example of a third member that presses the block members 52 in which the grooves 50 are formed, toward the second member 48. The springs 54 are provided on the back surface of each block member 52 (i.e., the surface opposite to the second member 48). The repulsive force of the springs 54 presses the block members 52 toward the second member 48.

[0059] A container 42 is placed in each groove 50, and each container 42 is sandwiched between the first member 47 and the second member 48, whereby each container 42 is held by the first member 47 and the second member 48. The posture of the container 42 is stabilized by sandwiching the container 42 between the groove 50 and the second member 48, which is an elastic body.

[0060] Furthermore, the springs 54 press the block members 52 toward the second member 48, thereby absorbing the difference in diameter between the containers 42. In other words, even when multiple containers 42 with different diameters are gripped by the gripping mechanism 32, the positions of the block members 52 are adjusted by the expansion and contraction of the springs 54, so that the difference in diameter between the containers 42 is absorbed and the multiple containers 42 can be placed on the gripping mechanism 32.

[0061] By using the gripping mechanism 32, it is possible to simultaneously hold five containers 42 and perform inversion mixing and rocking photography. In addition, even when multiple containers 42 with different diameters are used, it is possible to simultaneously perform inversion mixing and rocking photography for multiple specimens.

[0062] 3, a lid 56 is installed on the container 42. The gripping mechanism 32 further includes a fourth member 58. The fourth member 58 is a member that presses down the lid 56 of the container 42 when the container 42 is sandwiched between the first member 47 and the second member 48. For example, the fourth member 58 includes an elastic body such as a spring, and presses down the lid 56 with the elastic body.

[0063] In the embodiment, the speed (i.e., angular velocity) at which the first mechanism 34 tilts the container 42 may be faster than the speed (i.e., angular velocity) at which the second mechanism 38 tilts the light source 30, the imager 28, and the container 42. Hereinafter, the angular velocity of the first mechanism 34 is referred to as the "first angular velocity," and the angular velocity of the second mechanism 38 is referred to as the "second angular velocity." A relationship of the first angular velocity > the second angular velocity may be established. The first mechanism 34 tilts the container 42 to stir the specimen. The faster the first angular velocity is, the better the specimen is stirred. The second mechanism 38 is a mechanism for rocking photography, and is not a mechanism used to stir the specimen. Therefore, it is not necessary to tilt the light source 30, the imager 28, and the container 42 at an angular velocity that stirs the specimen. Therefore, the first mechanism 34 and the second mechanism 38 may be driven according to the relationship of the first angular velocity > the second angular velocity.

[0064] In addition, the range in which the container 42 is tilted by the first mechanism 34 (i.e., the range of rotation angles) may be wider than the range in which the light source 30, the imager 28, and the container 42 are tilted by the second mechanism 38 (i.e., the range of rotation angles). Hereinafter, the range of rotation angles of the first mechanism 34 is referred to as the "first rotation angle range," and the range of rotation angles of the second mechanism 38 is referred to as the "second rotation angle range." A relationship of "first rotation angle range > second rotation angle range" may be established. The wider the range of rotation angles, the better the specimen is stirred. For example, when the container 42 is turned upside down, that is, when the container 42 is tilted in a range of rotation angles from 0° to 180°, the specimen is better stirred. In rocking photography, the range of rotation angles is not required as much as in stirring the specimen. Therefore, the first mechanism 34 and the second mechanism 38 may be driven according to the relationship of "first rotation angle range > second rotation angle range."

[0065] According to the above-mentioned embodiment, the first mechanism 34 realizes inversion mixing, and the specimen can be stirred well. In addition, the second mechanism 38 realizes rocking photography, and the liquid level of the specimen can be accurately determined. Even when a container 42 with a label attached is used, the liquid level of the specimen can be accurately determined, and as a result, the amount of the specimen can be accurately measured. In addition, the rocking photography makes it possible to determine the presence or absence of coagulation in the specimen. In addition, by using the gripping mechanism 32, it is possible to simultaneously realize inversion mixing and rocking photography for multiple specimens (for example, five specimens). As a result, it is possible to shorten the time required for testing.

[0066] Furthermore, by using the first mechanism 34 in addition to the second mechanism 38 that rotates the entire imaging unit 28, light source 30, and gripping mechanism 32, it becomes possible to stir the specimen without rotating the imaging unit 28, which does not need to be rotated for stirring the specimen. It becomes possible to stir the specimen by rotating the container 42 while minimizing the weight of the object to be rotated for stirring.

[0067] All or part of the above-mentioned configurations, functions, processing units, and processing means may be realized by hardware such as an integrated circuit. All or part of the above-mentioned configurations, functions, processing units, and processing means may be realized by a processor such as a CPU (Central Processing Unit) executing a program. Information such as programs, tables, and files that realize all or part of the above-mentioned configurations, functions, processing units, and processing means is stored in a storage medium such as a non-volatile semiconductor memory, a hard disk drive, an SSD (Solid State Drive), an IC card, an SD card, or a DVD. [Explanation of symbols]

[0068] 10 vibration unit, 14 discrimination unit, 28 imaging unit, 30 light source, 32 gripping mechanism, 34 first mechanism, 36 first rotating shaft, 38 second mechanism, 40 second rotating shaft, 42 container.

Claims

1. a first mechanism for stirring the sample by tilting a container containing the sample about a first rotation axis; a light source that irradiates the specimen with light, an imaging unit that is installed on the opposite side of the light source with the specimen in between and images the specimen, and a second mechanism that tilts the container about a second rotation axis different from the first rotation axis; a support portion that supports the first rotation shaft and the second rotation shaft; A specimen characteristic discrimination device comprising:

2. The specimen characteristic determination device according to claim 1, The second mechanism tilts the light source, the imaging unit, and the container about the second rotation axis without changing a positional relationship between the light source, the imaging unit, and the container, The imaging unit captures an image of the sample while the light source, the imaging unit, and the container are tilted. A specimen characteristic discrimination device comprising:

3. The specimen characteristic determination device according to claim 2, and a discrimination means for discriminating a boundary of the specimen based on an image generated by the imaging unit while the light source, the imaging unit, and the container are tilted. A specimen characteristic discrimination device comprising:

4. The specimen characteristic determination device according to any one of claims 1 to 3, a speed at which the first mechanism tilts the container is faster than a speed at which the second mechanism tilts the light source, the imaging unit, and the container; A range in which the container is tilted by the first mechanism is wider than a range in which the light source, the imaging unit, and the container are tilted by the second mechanism. A specimen characteristic discrimination device comprising:

5. The specimen characteristic determination device according to any one of claims 1 to 4, a gripping mechanism for gripping the plurality of containers; The gripping mechanism includes: a first member having a plurality of grooves in which the containers are placed; a second member that is made of an elastic body and that sandwiches the containers disposed in the plurality of grooves together with the first member; Including, The first mechanism tilts the plurality of containers gripped by the gripping mechanism about the first rotation axis, The second mechanism tilts the light source, the imaging unit, and the plurality of containers gripped by the gripping mechanism about the second rotation axis. A specimen characteristic discrimination device comprising:

6. The specimen characteristic determination device according to claim 5, A third member is provided on the first member to push the portion in which the groove is formed toward the second member. A specimen characteristic discrimination device comprising:

7. The specimen characteristic determination device according to claim 5 or 6, The gripping mechanism includes: and a fourth member that presses down a lid of the container when the container is sandwiched between the first member and the second member. A specimen characteristic discrimination device comprising:

Images