Improved biochemical analyzer

Abstract

The utility model relates to an improved biochemical analyzer which comprises a rack, a driving assembly, a bearing part, a reagent disc, a pipetting mechanism and an optical signal detection mechanism, the driving assembly is arranged on the rack, the bearing part is connected to the driving assembly, the bearing part is used for bearing the reagent disc, and the driving assembly is used for driving the reagent disc to rotate along the rack; the reagent disc is arranged on the rack, the pipetting mechanism is arranged on the rack and is used for pipetting liquid in the reagent disc, the optical signal detection mechanism is arranged on the rack on one side of the reagent disc and is used for carrying out optical signal detection on a reagent in the reagent disc or a mixture of the reagent and a sample, and the microscopic mechanism is arranged on the rack and is used for carrying out optical signal detection on the reagent or the mixture of the reagent and the sample. The reagent disc is provided with a circular working area, the circular working area is provided with a plurality of counting chambers, the counting chambers are used for quantitatively accommodating a solution containing visible components, the detection end of the microscopic mechanism faces the circular working area, and the microscopic mechanism is used for carrying out microscopic imaging on the visible components in the counting chambers; when the driving assembly drives the reagent disc to rotate along the rack, any one counting chamber can rotate to the position below the detection end of the microscopic mechanism, and the device has the effect of conveniently detecting samples containing components such as whole blood.

Description

Technical Field

[0001] This application relates to the field of medical testing instruments, and in particular to an improved biochemical analyzer. Background Technology

[0002] Chinese utility model patent, patent number CN221612879U, discloses a reagent tray and a biochemical analyzer. The key technical points are: the reagent tray has a circular working area, and at least one sample cup, several reagent cups 78, and several reaction cups are arranged along its circular trajectory on the working area. The biochemical analyzer includes a reagent tray detachably connected to the reagent tray, a pipetting mechanism, and a light signal detection mechanism. Various operations required for biochemical detection are completed through the coordination of the up-and-down movement of the pipette tip and the rotation of the reagent tray. The light signal detection mechanism is used to analyze and detect the light signal of the reagents or the mixture of reagents and samples in the reaction cups. This application has the advantages of rapid multi-item detection of samples, simple instrument structure, easy operation, and accurate results, which is conducive to its widespread application.

[0003] However, a whole blood sample contains both formed elements and intangible components. Formed elements include red blood cells, white blood cells, and platelets, while intangible components are esterified components in the plasma, which are numerous and can number in the hundreds or thousands. The purpose of clinical blood analysis is to analyze parameters such as the number, size, and morphology of formed elements like red blood cells, white blood cells, and platelets, while intangible components are generally analyzed based on parameters such as hemoglobin concentration and C-reactive protein concentration.

[0004] The above-mentioned method can only detect and analyze intangible components in samples containing formed elements, such as whole blood. When it is necessary to analyze formed elements in samples containing formed elements, such as whole blood, a reagent tray compatible with the formed element detector is required, and the reagent tray must be used in conjunction with the formed element detector to complete the detection of formed elements in samples containing formed elements, such as whole blood. The operation is cumbersome and there is room for improvement. Utility Model Content

[0005] To facilitate the detection of formed elements in samples such as whole blood, this application provides an improved biochemical analyzer.

[0006] The improved biochemical analyzer provided in this application adopts the following technical solution:

[0007] An improved biochemical analyzer includes a frame, a drive assembly, a support component, a reagent tray, a pipetting mechanism, and a light signal detection mechanism. The drive assembly is mounted on the frame, and the support component is connected to the drive assembly. The support component supports the reagent tray, and the drive assembly drives the reagent tray to rotate along the frame. The pipetting mechanism is mounted on the frame and is used to pipe liquid from the reagent tray. The light signal detection mechanism is mounted on the frame on one side of the reagent tray and is used to detect the reagents in the reagent tray. The optical signal detection of a mixture of reagents or reagents and samples also includes a microscopic mechanism mounted on the frame. A circular working area is provided on the reagent tray, and several counting cells are provided on the circular working area. The counting cells are used to quantitatively dissolve solutions containing formed elements. The detection end of the microscopic mechanism faces the circular working area, and the microscopic mechanism is used to perform microscopic imaging of the formed elements in the counting cells. When the driving assembly drives the reagent tray to rotate along the frame, any one of the counting cells can rotate to a position below the detection end of the microscopic mechanism.

[0008] By adopting the above technical solution, the reagent tray is driven to rotate along the frame by the drive component, and the liquid in the reagent tray is transferred by the pipetting mechanism. Then, the light signal detection mechanism completes the detection of the reagent and sample mixture in the reagent tray by reducing the light signal. In addition, since a microscopic mechanism is also integrated on the frame, and several counting cells are set on the circular working area on the reagent tray, the formed elements are contained in the counting cells, and the formed elements are detected in cooperation with the microscopic mechanism. The biochemical analyzer of this application can simultaneously detect both formed elements and intangible components in blood, which plays a positive guiding role in improving the convenience of testing whole blood and other samples containing formed elements.

[0009] Preferably, the microscopic mechanism includes a microscopic imaging component and a mechanical motion component. The microscopic imaging component is used to perform microscopic imaging on the formed elements in the counting cell. The mechanical motion component is disposed on the frame on one side of the pipetting mechanism. The microscopic imaging component includes a CCD camera, which is disposed on the mechanical motion component. The mechanical motion component is used to drive the CCD camera to move along the X-axis or Z-axis within a spatial range.

[0010] By adopting the above technical solution, the CCD camera is moved along the X-axis or Z-axis within a spatial range by a mechanical motion component, which satisfies the purpose of adjusting the focal length and position of the CCD camera, and helps to improve the image quality of the CCD camera.

[0011] Preferably, the counting cell is made of transparent material, and the microscopic imaging component further includes a light source, which is disposed on the frame directly below the CCD camera. When the driving component drives the reagent disk to rotate, the reagent disk passes between the light source and the CCD camera.

[0012] By adopting the above technical solution, since the counting cell is made of transparent material, it is easy for light to pass through. The counting cell is supplemented with light by a light source, so that the counting cell is in a high-brightness state. This reduces the probability that the CCD camera will affect the accuracy of the formed elements detection results when detecting the formed elements in the counting cell due to the low brightness inside the counting cell.

[0013] Preferably, the carrier has an annular limiting groove, which is concentric with the carrier. The reagent tray has an annular boss on its surface that abuts against the carrier, and the annular boss engages with the annular limiting groove.

[0014] By adopting the above technical solution, the installation position of the reagent tray along the support is limited by the cooperation of the annular limiting groove and the annular boss, reducing the adjustment time when the reagent tray is installed on the support, so as to facilitate the replacement of new reagent trays. This ensures that the position of any newly replaced reagent tray when installed on the support is relatively fixed, reducing the probability of errors in the detection results of the optical signal detection mechanism or CCD camera due to deviations in the installation position of the reagent tray along the support.

[0015] Preferably, the carrier is provided with a locking position, and the reagent tray is provided with a limiting stage, the limiting stage engaging with the locking position.

[0016] By adopting the above technical solution, the cooperation between the limiting stage and the locking position helps to further improve the positional accuracy of the reagent tray when it is installed on the carrier, and at the same time helps to reduce the shaking of the reagent tray when it is installed on the carrier, thus improving the stability of the reagent tray when it is installed on the carrier.

[0017] Preferably, a sealing element is provided on the circular working area.

[0018] By adopting the above technical solution, the reagent tray is sealed with a sealing element, which facilitates pre-filling and is beneficial for the storage and / or transportation of the reagent tray filled with reagents.

[0019] Preferably, it further includes a punching mechanism, which is disposed on the frame on the side of the pipetting mechanism away from the CCD camera, and the punching mechanism is used to puncture the seal.

[0020] By adopting the above technical solution, the sealing element is punctured through a punching mechanism without the need for operators to manipulate the sealing element, thereby reducing the probability of contamination of reagents or whole blood samples containing formed elements. At the same time, it also provides a certain degree of protection for operators, reducing the probability of direct contact between reagents or whole blood samples containing formed elements and operators.

[0021] Preferably, the circular working area is provided with a suction head position for placing the suction head.

[0022] By adopting the above technical solution, the placement of the suction head along the circular working area is relatively fixed, which facilitates the use of the suction head by the testing equipment and helps to reduce the probability of contamination during the secondary use of the suction head.

[0023] Preferably, the pipetting mechanism includes a pipette tip, which moves along the frame toward or away from the reagent tray. A protruding ring is provided at one end of the pipette tip facing the reagent tray. When the pipette tip position, on which the pipette tip is placed, rotates to below the pipette tip and the pipette tip moves toward the pipette tip position, the protruding ring engages with the pipette tip.

[0024] By adopting the above technical solution, the pipette tip is in a relatively fixed position along the frame, so that when the reagent tray rotates along the frame, the circular working area can move below the pipette tip and stay below the pipette tip. The convex ring set on the pipette tip achieves the purpose of locking with the pipette tip, reducing the probability of the pipette tip falling off along the pipette tip during operation due to loosening of the fit between the pipette tip and the washing head.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The circular working area on the reagent tray is equipped with several counting cells. The formed elements are contained in the counting cells and the formed elements are detected in conjunction with the microscopic mechanism. The biochemical analyzer of this application can simultaneously detect both formed elements and intangible components in blood, which plays a positive guiding role in improving the convenience of testing whole blood and other samples containing formed elements.

[0027] 2. The mechanical motion components support the CCD camera to move along the X or Z axis within a spatial range, thereby enabling the adjustment of the CCD camera's focus and position, which helps improve the image quality of the CCD camera.

[0028] 3. The reagent tray is sealed with a sealing element, which facilitates pre-filling and the storage and / or transportation of the reagent tray filled with reagents. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an improved biochemical analyzer according to an embodiment of this application.

[0030] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle.

[0031] Figure 3 This is a schematic diagram showing the fit between the reagent tray and the support component in an improved biochemical analyzer according to an embodiment of this application.

[0032] Figure 4 yes Figure 3 A schematic diagram of the exploded structure along the axis shown in the diagram.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Drive assembly; 21. Drive motor; 22. First synchronous pulley; 23. Synchronous belt; 24. Second synchronous pulley; 3. Support component; 31. Annular limiting groove; 32. Locking position; 4. Reagent tray; 41. Circular working area; 411. Counting cell; 412. Pipette tip position; 413. Reaction cup; 414. Reagent cup; 415. Liquid container; 416. Sample cup; 42. Annular boss; 43. Limiting stage; 5. Pipetting mechanism; 51. Pipette tip; 511. Convex ring; 6. Optical signal detection mechanism; 7. Microscopic mechanism; 71. Microscopic imaging assembly; 711. CCD camera; 712. Objective lens; 72. Mechanical motion assembly; 8. Perforation mechanism; 81. Puncture needle. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0035] This application discloses an improved biochemical analyzer. (Refer to...) Figure 1An improved biochemical analyzer includes a frame 1, a drive assembly 2, a support 3, a reagent tray 4, a pipetting mechanism 5, and a light signal detection mechanism 6. The drive assembly 2 is mounted on the frame 1, and the support 3 is connected to the drive assembly 2. The support 3 supports the reagent tray 4, and the drive assembly 2 drives the reagent tray 4 to rotate along the frame 1. The pipetting mechanism 5 is mounted on the frame 1 and is used to pipe liquid from the reagent tray 4. The light signal detection mechanism 6 is mounted on one side of the frame 1 and is used to detect reagents or reagents and samples in the reagent tray 4. The mixture is subjected to optical signal detection, and a microscopic mechanism 7 is also included. The microscopic mechanism 7 is set on the frame 1. A circular working area 41 is set on the reagent tray 4. A plurality of counting cells 411 are set on the circular working area 41. The counting cells 411 are used to quantitatively dispose of the solution containing formed elements. The detection end of the microscopic mechanism 7 faces the circular working area 41. The microscopic mechanism 7 is used to perform microscopic imaging on the formed elements in the counting cells 411. When the driving component 2 drives the reagent tray 4 to rotate along the frame 1, any one of the counting cells 411 can rotate to below the detection end of the microscopic mechanism 7.

[0036] Specifically, the pipetting mechanism 5 includes a pipette head 51 and a first driving component. The pipette head 51 moves along the frame 1 towards or away from the reagent tray 4. The first driving component can be a rodless cylinder or an electric slide (a conventional drive component in the field of mechanical assembly, whose specific composition and working principle will not be described in detail here). The first driving component is slidably mounted on the frame 1 in the vertical direction, and the pipette head 51 is mounted on the first driving component. When the first driving component moves, the pipette head 51 moves synchronously with the first driving component, thereby achieving the purpose of the pipette head 51 moving towards or away from the reagent tray 4.

[0037] Furthermore, the optical signal detection mechanism 6 is a conventional biochemical analyzer used to analyze and detect optical signals of reagents or mixtures of reagents and samples in reaction cup 413. It is existing technology, and its specific composition and working principle will not be elaborated here.

[0038] It should also be noted that after the microscopic mechanism 7 performs microscopic imaging on the formed elements in the reagent tray 4, it transmits the microscopic image to the formed element detector (which is an existing device, and its specific composition and working principle will not be described in detail here), and the formed element detector detects the microscopic image.

[0039] At the same time, refer to Figure 1The drive assembly 2 includes a drive motor 21, a first synchronous pulley 22, a synchronous belt 23, and a second synchronous pulley 24. The drive motor 21 is mounted vertically on the frame 1, and its output shaft faces upwards. The first synchronous pulley 22 is coaxially fixed to the output shaft of the drive motor 21, and the second synchronous pulley 24 is coaxially fixed to the support member 3. The synchronous belt 23 is sleeved on the first synchronous pulley 22 and the second synchronous pulley 24. The support member 3 is coaxially fixed to the second synchronous pulley 24. When the drive motor 21 rotates, the first synchronous pulley 22 rotates synchronously with the output shaft of the drive motor 21. The first synchronous pulley 22 drives the synchronous belt 23 sleeved on the first synchronous pulley 22 and the second synchronous pulley 24 to rotate, thereby causing the second synchronous pulley 24 to carry the support member 3 and rotate along the frame 1.

[0040] In this embodiment, the bearing 3 rotates along the frame 1 through the cooperation of the first synchronous pulley 22 and the second synchronous pulley 24, instead of the drive motor 21 directly driving the bearing 3 to rotate. This reduces the probability of the drive motor 21 being overloaded and damaged due to excessive torque or load, and plays a positive guiding role in maintaining the service life of the drive motor 21.

[0041] Correspondingly, refer to Figure 3 and Figure 4 The carrier 3 has an annular limiting groove 31, which is concentric with the carrier 3. The reagent tray 4 has an annular boss 42 on the surface that abuts against the carrier 3, and the annular boss 42 is engaged with the annular limiting groove 31.

[0042] Specifically, the annular limiting groove 31 is formed by the recess of the support member 3 along the thickness direction of the support member 3 on the surface that abuts against the reagent tray 4, and the annular boss 42 is formed by the protrusion of the surface of the reagent tray 4 that abuts against the support member 3. The width of the annular boss 42 and the groove width tolerance of the annular limiting groove 31 are in clearance fit, so that the reagent tray 4 can be taken out along the support member 3 or placed on the support member 3. Through the cooperation of the annular limiting groove 31 and the annular boss 42, the installation position of the reagent tray 4 along the support member 3 is limited, reducing the adjustment time when the reagent tray 4 is installed on the support member 3. This reduces the probability that the reagent tray 4 and the support member 3 cannot move concentrically when the driving component 2 drives the reagent tray 43 to rotate due to the deviation in the installation position of the reagent tray 4 and the support member 3. This plays a positive guiding role in improving the concentricity of the reagent tray 4 and the support member 3.

[0043] Furthermore, the carrier 3 is provided with a locking position 32, and the reagent tray 4 is provided with a limiting platform 43, which engages with the locking position 32. The locking position 32 is formed by a recess in the carrier 3 along its thickness direction, and the limiting platform 43 is formed by a protrusion on the surface of the reagent tray 4 that abuts against the carrier 3. Therefore, the engagement of the limiting platform 43 and the locking position 32 helps to further improve the positional accuracy of the reagent tray 4 when installed on the carrier 3, and also helps to reduce the shaking of the reagent tray 4 when installed on the carrier 3, thus improving the stability of the reagent tray 4 when installed on the carrier 3.

[0044] Correspondingly, along its circular trajectory, the circular working area 41 is also provided with a number of reaction cups 413, a number of reagent cups 414, a number of liquid cups 415, and a sample cup 416.

[0045] The reaction cup 413 is used to hold intangible components in samples containing formed elements, such as whole blood. The reaction cup 413 reacts the formed elements with the test reagents and intangible components. The reagent cup 414 holds the test reagents. The liquid container 415 cleans the reagent tray 4 to prevent inaccurate results due to cross-contamination when the testing equipment detects different components. At least one sample cup 416 is provided for holding samples containing formed elements, such as whole blood. The number of each type can be increased or decreased according to actual needs and the size of the reagent tray 4; their specific quantities are not described here.

[0046] Correspondingly, the positions and order of the reaction cup 413, reagent cup 414, liquid container 415, sample cup 416, and counting cell 411 can be adjusted according to the detection requirements. In this embodiment, for better explanation, the reaction cup 413, liquid container 415, reagent cup 414, sample cup 416, and counting cell 411 are arranged in a clockwise direction along the annular working area. For ease of explanation, a partial view of the reagent tray 4 is shown in the accompanying drawings.

[0047] Therefore, whole blood and other formed element samples are contained in sample cup 416, and then the whole blood and other formed element samples are processed by the detection device to achieve the purpose of detecting intangible components. At the same time, since a counting pool 411 is set on the annular working area, after the whole blood and other formed element samples are processed, the formed elements in the processed whole blood and other formed element samples can be directly added into the counting pool 411. The detection device can then complete the purpose of detecting the formed elements in the whole blood and other formed element samples without separating the formed elements and intangible components in the whole blood and other formed element samples and then transferring the formed elements to other reaction plates for detection. The operation is simple and plays a positive guiding role in improving the detection efficiency of each component of whole blood and other formed element samples.

[0048] In addition, a sealing element (not shown in the figure) is provided on the circular working area 41. The sealing element can be made of materials such as plastic, silicone, or filter. The sealing element seals the reaction cup 413, reagent cup 414, liquid container 415, and sample cup 416, which facilitates pre-filling (e.g., detection reagents or solvents) and is beneficial for the storage and / or transportation of the reagent tray 4 filled with reagents.

[0049] The sealing element can be an aluminum foil sealing film, a silicone sealing film, a plastic sealing film, or a rubber sealing film.

[0050] In addition, a pipette tip position 412 is provided on the circular working area 41. The pipette tip position 412 is used to place the pipette tip. The pipette tip position 412 is located in the circular working area 41 between the sample cup 416 and the counting cell 411. Because the pipette tip position 412 is provided on the base, the position of the pipette tip in the circular working area 41 is relatively fixed, so as to facilitate the use of the pipette tip and realize the purpose of transferring or using reagents, whole blood or other samples containing formed elements, or formed elements or intangible components. When the pipette tip is used up, the current pipette tip is discarded and a new pipette tip is placed on the pipette tip position 412 so that the pipette tip 51 can use the pipette tip next time.

[0051] Correspondingly, a raised ring 511 is provided at the end of the pipette tip 51 facing the reagent tray 4. When the pipette tip position 412, on which the pipette tip is placed, rotates to a position below the pipette tip 51, and the pipette tip 51 moves toward the pipette tip position 412, the raised ring 511 engages with the pipette tip. The raised ring 511 on the pipette tip 51 achieves the purpose of engaging with the pipette tip, reducing the probability of the pipette tip falling off along the pipette tip 51 during operation due to loosening of the engagement between the pipette tip and the pipette tip 51.

[0052] For the above instructions, please refer to Figure 1 and Figure 2 It also includes a punching mechanism 8, which is mounted on the frame 1 of the pipetting mechanism 5 on the side away from the CCD camera 711. The punching mechanism 8 is used to puncture the seal.

[0053] The punching mechanism 8 includes a second driving component and a puncture needle 81. The second driving component is located on the frame 1 on one side of the first driving component. The second driving component is the same as the first driving component in terms of its components and installation method on the frame 1. It is used to enable the puncture needle 81 to move vertically and puncture the seal without the need for the operator to operate on the seal. This reduces the probability of contamination of reagents or whole blood samples containing formed elements. It also provides some protection for the operator by reducing the probability of direct contact between the reagents or whole blood samples containing formed elements and the operator.

[0054] Reference Figure 1 and Figure 2 The microscopic mechanism 7 includes a microscopic imaging component 71 and a mechanical motion component 72. The microscopic imaging component 71 is used to perform microscopic imaging on the formed elements in the counting cell 411. The mechanical motion component 72 is mounted on the frame 1 on one side of the pipetting mechanism 5. The microscopic imaging component 71 includes a CCD camera 711, which is mounted on the mechanical motion component 72. The mechanical motion component 72 is used to drive the CCD camera 711 to move along the X-axis or Z-axis within the spatial range.

[0055] First, the spatial motion trajectory parallel to the reagent disk 4 is defined as the X-axis, and the spatial motion trajectory moving vertically towards or away from the surface of the reagent disk 4 is defined as the Z-axis.

[0056] Furthermore, the mechanical motion component 72 can be configured as a bidirectional electric slide or a sliding cylinder (a conventional drive component in mechanical assembly, the specific composition of which will not be elaborated here). In this embodiment, a bidirectional electric slide is preferred. Meanwhile, the microscopic imaging component 71 includes a CCD camera 711 and an objective lens 712. The CCD camera 711 is mounted on the bidirectional electric slide, with its recognition end facing the reagent tray 4 vertically. The objective lens 712 is mounted on the recognition end of the CCD camera 711. Different magnifications can be achieved by changing the objective lens 712. The CCD camera 711 is electrically connected to an external analytical instrument. The CCD camera 711 performs real-time microscopic imaging of the formed elements in the counting cell 411 and sends the microscopic imaging results to the analytical instrument in real time. The analytical instrument then performs the purpose of detecting the content of formed elements in the blood.

[0057] The mechanical motion component 72 carries the CCD camera 711 to move along the X-axis or Z-axis within a spatial range, which satisfies the purpose of adjusting the focal length and position of the CCD camera 711 and helps to improve the image quality of the CCD camera 711.

[0058] Meanwhile, the counting cell 411 is made of transparent material. The microscopic imaging component 71 also includes a light source (not shown in the figure). The light source is set on the frame 1 directly below the CCD camera 711. When the driving component 2 drives the reagent disk 4 to rotate, the reagent disk 4 passes between the light source and the CCD camera 711. Since the counting cell 411 is made of transparent material, it is easy for light to pass through. The light source provides supplementary lighting to the counting cell 411, so that the counting cell 411 is in a high-brightness state. This reduces the probability that the CCD camera 711 will affect the accuracy of the formed elements detection results when detecting the formed elements in the counting cell 411 due to the low brightness inside the counting cell 411.

[0059] The implementation principle of an improved biochemical analyzer according to an embodiment of this application is as follows: a plurality of counting cells 411 are provided on the circular working area 41 on the reagent tray 4. The formed components are contained in the plurality of counting cells 411 and the formed components are detected in cooperation with the microscopic mechanism 7. The biochemical analyzer of this application can simultaneously detect both formed components and intangible components in blood, which plays a positive guiding role in improving the convenience of detecting whole blood and other samples containing formed components.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An improved biochemical analyzer characterized by: The utility model provides a reagent disc rotating and moving device, which comprises a rack (1), a driving assembly (2), a bearing (3), a reagent disc (4), a pipetting mechanism (5) and a light signal detection mechanism (6), the driving assembly (2) is arranged on the rack (1), the bearing (3) is connected to the driving assembly (2), the bearing (3) is used for bearing the reagent disc (4), the driving assembly (2) is used for driving the reagent disc (4) to rotate along the rack (1), the pipetting mechanism (5) is arranged on the rack (1), the pipetting mechanism (5) is used for pipetting liquid in the reagent disc (4), the light signal detection mechanism (6) is arranged on the rack (1) on one side of the reagent disc (4), and the light signal detection mechanism (6) is used for detecting the light signal of reagent or the mixture of reagent and sample in the reagent disc (4), characterized by further comprising a microscopic mechanism (7), the microscopic mechanism (7) is arranged on the rack (1), a circular work area (41) is arranged on the reagent disc (4), a plurality of counting pools (411) are arranged on the circular work area (41), the counting pool (411) is used for quantitatively containing a solution containing formed components, the detection end of the microscopic mechanism (7) faces the circular work area (41), the microscopic mechanism (7) is used for microscopic imaging of the formed components in the counting pool (411), and when the driving assembly (2) drives the reagent disc (4) to rotate along the rack (1), any one counting pool (411) can rotate to below the detection end of the microscopic mechanism (7).

2. The improved biochemical analyzer according to claim 1, characterized in that: The microscopic mechanism (7) comprises a microscopic imaging assembly (71) and a mechanical motion assembly (72), the microscopic imaging assembly (71) is used for microscopic imaging of the formed components in the counting pool (411), the mechanical motion assembly (72) is arranged on the rack (1) on one side of the pipetting mechanism (5), the microscopic imaging assembly (71) comprises a CCD camera (711), the CCD camera (711) is arranged on the mechanical motion assembly (72), and the mechanical motion assembly (72) is used for driving the CCD camera (711) to move along the X axis or the Z axis in a space range.

3. The improved biochemical analyzer as claimed in claim 2, wherein: The counting pool (411) is a transparent material counting pool (411), the microscopic imaging assembly (71) further comprises a light source, the light source is arranged on the rack (1) directly below the CCD camera (711), when the driving assembly (2) drives the reagent disc (4) to rotate, the reagent disc (4) passes between the light source and the CCD camera (711).

4. The improved biochemical analyzer as claimed in claim 1, wherein: An annular limiting groove (31) is formed in the bearing (3) and is concentric with the bearing (3), an annular boss (42) is arranged on the surface of the reagent disc (4) abutting against the bearing (3), and the annular boss (42) is in clamping cooperation with the annular limiting groove (31).

5. The improved biochemical analyzer as claimed in claim 1, wherein: The bearing (3) is provided with a clamping position (32), the reagent disc (4) is provided with a limiting table (43), and the limiting table (43) is clamped with the clamping position (32).

6. The improved biochemical analyzer as claimed in claim 2, wherein: The circular work area (41) is provided with a sealing element.

7. The improved biochemical analyzer as claimed in claim 6, wherein: A punching mechanism (8) is further included, which is arranged on the rack (1) away from the CCD camera (711) on the side of the pipetting mechanism (5), and is used for puncturing the sealing element.

8. The improved biochemical analyzer as claimed in claim 1, wherein: The circular work area (41) is provided with a tip position (412), which is used for placing a tip.

9. The improved biochemical analyzer as claimed in claim 8, wherein: The pipetting mechanism (5) includes a pipetting head (51), which moves towards or away from the reagent disc (4) along the rack (1), and the pipetting head (51) is provided with a convex ring (511) at one end thereof towards the reagent disc (4), when the tip position (412) provided with a tip is rotated to below the pipetting head (51), and the pipetting head (51) moves towards the tip position (412), the convex ring (511) is clamped with the tip.

Images