High-stability biochemical analyzer

By incorporating transfer and pipetting devices into the biochemical analyzer, rapid replacement of dropper tips is achieved, resolving the issue of test result deviations caused by inaccurate temperature control and cross-contamination in traditional biochemical analyzers. This improves test accuracy and reduces maintenance costs.

CN223986130UActive Publication Date: 2026-03-10WOBAO TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional biochemical analyzers suffer from inaccurate temperature control, sample cross-contamination, or insufficient reagent stability during long-term operation or environmental changes, leading to deviations in test results. Furthermore, they require the purchase and maintenance of complex cleaning equipment, resulting in high maintenance costs and limiting their efficiency and application scope.

Method used

A highly stable biochemical analyzer was designed. By setting a transfer device under the sample tray and reagent tray, and using a pipetting device and a snap-fit ​​device, the dropper tip can be quickly replaced, avoiding cross-contamination, improving detection accuracy, simplifying the operation process and reducing maintenance costs.

Benefits of technology

It has improved detection accuracy under long-term operation and environmental changes, avoided cross-contamination, simplified operation procedures, reduced maintenance costs, and improved biosafety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-stability biochemical analyzer, which belongs to the field of clinical laboratory medicine and comprises a biochemical analyzer main body, a pipetting device is arranged in the middle of the top surface of the biochemical analyzer main body, a clamping device is arranged in the pipetting device, and a control panel is fixedly connected to the front side of the top surface of the biochemical analyzer main body. A sample disc is arranged on the left side of the pipetting device, a reagent disc is arranged on the right side of the pipetting device, and material transferring devices are arranged at the bottoms of the sample disc and the reagent disc. According to the device disclosed by the utility model, the material transferring device is arranged below the sample disc and the reagent disc, the liquid transferring device is arranged between the sample disc and the reagent disc, the clamping device is arranged in the clamping block, and the accuracy of a liquid taking process is ensured through equidistant rotation of the material transferring device; the rubber head dropper can be quickly replaced, cross contamination is avoided, the detection precision is improved, the operation process is simplified, the maintenance cost is reduced, and the biological safety is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of clinical laboratory medicine technology, specifically relating to a highly stable biochemical analyzer. Background Technology

[0002] Biochemical analyzers are indispensable equipment in modern clinical diagnosis and scientific research, used to rapidly and accurately detect biochemical indicators in biological samples such as blood and urine, including blood glucose, cholesterol, and liver function parameters. With advancements in medical technology, higher demands are placed on the stability, accuracy, and automation of biochemical analyzers. High-stability biochemical analyzers have emerged to address these challenges. Their core technologies include a high-precision optical detection system, a constant temperature control module, an automated sample processing system, and intelligent data analysis software. High-stability biochemical analyzers are widely used in hospitals, laboratories, and disease control centers, providing strong technical support for disease diagnosis, health monitoring, and scientific research analysis, and promoting the standardization and intelligent development of medical testing technology.

[0003] Traditional biochemical analyzers may produce inaccurate test results due to issues such as inaccurate temperature control, cross-contamination of samples, or insufficient reagent stability during long-term operation or environmental changes. Furthermore, the high maintenance costs associated with purchasing and maintaining complex cleaning equipment limit their efficiency and application scope. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing equipment is difficult to operate for extended periods or when the environment changes, potentially leading to deviations in test results due to inaccurate temperature control, cross-contamination of samples, or insufficient reagent stability. Furthermore, the high maintenance costs associated with purchasing and maintaining complex cleaning equipment limit its efficiency and application scope.

[0005] The technical solution adopted to solve the above-mentioned technical problems is to provide a highly stable biochemical analyzer.

[0006] Furthermore, the device includes a biochemical analyzer body, with a pipetting device located in the center of the top surface of the biochemical analyzer body. The pipetting device has a snap-fit ​​device inside, and a control panel is fixedly connected to the front of the top surface of the biochemical analyzer body. A sample tray is located on the left side of the pipetting device, and a reagent tray is located on the right side of the pipetting device. Both the sample tray and the reagent tray have transfer devices at their bottoms.

[0007] Furthermore, the top surface of both the sample tray and the reagent tray is provided with a plurality of placement slots in a circumferential direction, and the top surface of both the sample tray and the reagent tray is provided with abutting blocks in a circumferential direction, with the abutting blocks and placement slots being provided in a corresponding manner.

[0008] The above technical solution ensures the accuracy of the liquid collection process through the equidistant rotation of the transfer device, and allows for quick replacement of the dropper head through the cooperation of the snap-fit ​​device and the first spring, thus avoiding cross-contamination, improving detection accuracy, simplifying the operation process, reducing maintenance costs, and enhancing biosafety.

[0009] Furthermore, the pipetting device includes a second motor, which is fixedly connected to the main body of the biochemical analyzer. A drive rod is fixedly connected to the output end of the second motor. A rotating plate is fixedly connected to the top end of the drive rod. Several electric telescopic rods are fixedly connected to the bottom of the rotating plate on the side away from the drive rod. A locking block is fixedly connected to the bottom end of the electric telescopic rod.

[0010] Furthermore, a plurality of second springs are fixedly connected to the bottom of the snap-fit ​​block, and an arc-shaped block is fixedly connected to the bottom of the second spring. The arc-shaped blocks are symmetrically arranged, and the arc-shaped blocks and the abutting blocks are correspondingly arranged. A dropper is provided between the arc-shaped blocks, and a convex block is fixedly connected to the center of the top surface of the dropper. The convex block is located inside the snap-fit ​​block, and a reserved hole is provided in the center of the top surface of the convex block. A plurality of first springs abut against the rear side of the convex block, and the first springs are fixedly connected to the snap-fit ​​block.

[0011] The above technical solution involves using an electric telescopic rod to move the locking block, the second spring, and the arc-shaped block downwards. This causes the arc-shaped block to press against the contact block, which in turn causes the second spring to contract. Simultaneously, the arc-shaped block presses against the dropper, allowing it to absorb the sample. After the sample is absorbed, the electric telescopic rod returns to its original position, and the second motor rotates the dropper clockwise to the top of the reagent tray. The above steps are repeated to complete the pipetting process.

[0012] Furthermore, the latching device includes an unlocking button located in the upper center of the front of the latching block. A third spring is provided on the outer rear side of the unlocking button, and the third spring is fixedly connected to the latching block. A first inclined block is fixedly connected to the rear end of the unlocking button. A second inclined block is provided on the rear side of the first inclined block, and the second inclined block and the first inclined block are correspondingly arranged. A plug is fixedly connected to the rear side of the second inclined block, and the plug is correspondingly arranged to the reserved hole. A fourth spring is fixedly connected to the top of the plug, and the fourth spring is fixedly connected to the latching block.

[0013] The above technical solution involves pressing the unlock button, causing the first inclined block behind the button to abut against its corresponding second inclined block. This causes the second inclined block and the insert rod to move upward, releasing the insert rod from the convex block. With the help of the first spring, the convex block is popped out, allowing the convex block and the used dropper to be removed. A new dropper and the convex block are then inserted into the locking block, and the fourth spring and the insert rod secure the dropper and the convex block. This function allows for quick replacement of the dropper, avoiding cross-contamination, improving detection accuracy, simplifying the operation process, reducing maintenance costs, and enhancing biosafety.

[0014] Furthermore, the transfer device includes a shaped turntable, which is fixedly connected to a sample tray and a reagent tray respectively. A support rod is rotatably connected to the center of the bottom surface of the shaped turntable. The bottom of the support rod is fixedly connected to the main body of the biochemical analyzer. A rotating double roller is engaged with the outside of the shaped turntable. A first motor is fixedly connected to the center of the bottom surface of the rotating double roller. The first motor is fixedly connected to the main body of the biochemical analyzer.

[0015] The above technical solution uses a first motor to drive a rotating double roller in conjunction with a shaped turntable, which in turn drives the sample tray and reagent tray to rotate at equal intervals, ensuring that the pipetting device and the placement tank correspond to each other and ensuring the accuracy of the liquid collection process.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention features a transfer device located below the sample and reagent trays, a pipetting device between the sample and reagent trays, and a locking device inside the locking block. The equidistant rotation of the transfer device ensures the accuracy of the liquid dispensing process. The locking device, in conjunction with the first spring, allows for quick replacement of the dropper tip, thus avoiding cross-contamination, improving detection accuracy, simplifying the operation process, reducing maintenance costs, and enhancing biosafety. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the high-stability biochemical analyzer of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the high-stability biochemical analyzer of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the transfer device of the high-stability biochemical analyzer of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the pipetting device of the high-stability biochemical analyzer of this utility model;

[0022] Figure 5This is a three-dimensional structural diagram of the snap-fit ​​device of the high-stability biochemical analyzer of this utility model.

[0023] Reference numerals: 1. Main body of biochemical analyzer; 2. Pipette device; 201. Second motor; 202. Drive rod; 203. Rotating plate; 204. Electric telescopic rod; 205. Clamping block; 206. Second spring; 207. Arc-shaped block; 208. Dropper; 209. Convex block; 210. Pre-drilled hole; 3. Sample tray; 4. Reagent tray; 5. Transfer device; 501. Support rod; 502. Irregularly shaped turntable; 503. Rotating double rollers; 504. First motor; 6. Placement slot; 7. Contact block; 8. Clamping device; 801. Unlock button; 802. Third spring; 803. First inclined block; 804. Second inclined block; 805. Fourth spring; 806. Insertion rod; 9. First spring; 10. Control panel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figure 1 - Figure 5 As shown, a high-stability biochemical analyzer includes a biochemical analyzer body 1. A pipetting device 2 is located at the center of the top surface of the biochemical analyzer body 1. The pipetting device 2 includes a second motor 201, which is fixedly connected to the biochemical analyzer body 1. A drive rod 202 is fixedly connected to the output end of the second motor 201. A rotating plate 203 is fixedly connected to the top end of the drive rod 202. Several electrically operated telescopic rods 204 are fixedly connected to the bottom of the rotating plate 203 on the side away from the drive rod 202. A locking block 205 is fixedly connected to the bottom end of each electrically operated telescopic rod 204. Several second springs 206 are fixedly connected to the bottom of the locking block 205. An arc-shaped block 207 is fixedly connected to the bottom of the device. The arc-shaped block 207 is used to cooperate with the contact block 7 to squeeze the dropper 208. The arc-shaped blocks 207 are symmetrically arranged, and the arc-shaped blocks 207 and the contact blocks 7 are correspondingly arranged. The dropper 208 is provided between the arc-shaped blocks 207. A convex block 209 is fixedly connected to the middle of the top surface of the dropper 208. The convex block 209 is located inside the snap-fit ​​block 205. A reserved hole 210 is provided in the middle of the top surface of the convex block 209. Several first springs 9 are abutted on the rear side of the convex block 209. The first springs 9 are used to pop out by their own elasticity when the convex block 209 and the dropper 208 are disassembled. The first springs 9 are fixedly connected to the snap-fit ​​block 205.

[0026] The pipetting device 2 has a locking device 8 inside, which includes an unlocking button 801 located in the upper center of the front of the locking block 205. A third spring 802 is located on the outer rear side of the unlocking button 801, used to reset the unlocking button 801. The third spring 802 is fixedly connected to the locking block 205. A first inclined block 803 is fixedly connected to the rear end of the unlocking button 801. A second inclined block 804 is located on the rear side of the first inclined block 803. The second inclined block 804 and the first inclined block 803 are connected to each other. 3. Correspondingly, a rod 806 is fixedly connected to the rear side of the second inclined block 804. The rod 806 and the reserved hole 210 are correspondingly set. A fourth spring 805 is fixedly connected to the top of the rod 806. The fourth spring 805 is used to drive the rod 806 to be inserted into the reserved hole 210 by its own elasticity. The fourth spring 805 and the snap-fit ​​block 205 are fixedly connected. A control panel 10 is fixedly connected to the front side of the top of the biochemical analyzer body 1. A sample tray 3 is provided on the left side of the pipetting device 2, and a reagent tray 4 is provided on the right side of the pipetting device 2.

[0027] Both sample tray 3 and reagent tray 4 are equipped with a transfer device 5 at the bottom. The transfer device 5 includes a shaped turntable 502, which is fixedly connected to the sample tray 3 and reagent tray 4 respectively. A support rod 501 is rotatably connected to the center of the bottom surface of the shaped turntable 502. The bottom of the support rod 501 is fixedly connected to the main body 1 of the biochemical analyzer. A rotating double roller 503 is engaged with the outside of the shaped turntable 502. A first motor 504 is fixedly connected to the center of the bottom surface of the rotating double roller 503. The first motor 504 is fixedly connected to the main body 1 of the biochemical analyzer. The top surface of the sample tray 3 and reagent tray 4 is provided with several placement slots 6 in a circumferential direction. The placement slots 6 are used to place samples and reagents. The top surface of the sample tray 3 and reagent tray 4 is provided with abutment blocks 7 in a circumferential direction. The abutment blocks 7 are correspondingly set with the placement slots 6.

[0028] The working principle of this embodiment is as follows: When in use, the sample to be tested is placed in the placement slot 6 set on the top surface of the sample tray 3, and the test reagent is placed in the placement slot 6 on the reagent tray 4. The electric telescopic rod 204 drives the locking block 205, the second spring 206, and the arc block 207 to move down, so that the arc block 207 squeezes the contact block 7, causing the second spring 206 to contract. At the same time, the arc block 207 squeezes the dropper 208 to draw up the sample. After the sample is drawn up, the electric telescopic rod 204 returns to its original position, and the second motor 201 drives the dropper 208 to rotate clockwise to the top of the reagent tray 4. The above steps are repeated to squeeze the sample in the dropper 208 into the reagent cup in the reagent tray 4. The biochemical indicators of the sample are detected under the operation of the biochemical analyzer body 1.

[0029] After the sample is extruded, the second motor 201 drives the dropper 208 to rotate, moving the dropper 208 above the control panel 10. By pressing the unlock button 801, the first inclined block 803 behind the unlock button 801 abuts against the corresponding second inclined block 804, causing the second inclined block 804 and the insert rod 806 to move upward, releasing the insert rod 806 from the convex block 209. With the cooperation of the first spring 9, the convex block 209 is popped out. The convex block 209 and the used dropper 208 are removed, and a new dropper 208 and the convex block 209 are inserted into the snap-fit ​​block 205. The fourth spring 805 and the insert rod 806 complete the fixation of the dropper 208 and the convex block 209.

[0030] Meanwhile, a transfer device 5 is provided below both the sample tray 3 and the reagent tray 4. The first motor 504 drives the rotating double roller 503 to cooperate with the irregular turntable 502, thereby driving the sample tray 3 and the reagent tray 4 to rotate at equal intervals, ensuring that the pipetting device 2 and the placement tank 6 correspond to each other, and ensuring the accuracy of the liquid taking process.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A high-stability biochemical analyzer comprising a biochemical analyzer main body (1), characterized in that: The top surface of the biochemical analyzer body (1) is provided with a pipetting device (2), the inside of the pipetting device (2) is provided with a clamping device (8), the top surface of the biochemical analyzer body (1) is fixedly connected with a control panel (10) on the front side, the left side of the pipetting device (2) is provided with a sample disc (3), the right side of the pipetting device (2) is provided with a reagent disc (4), and the bottom of the sample disc (3) and the reagent disc (4) is provided with a material transferring device (5).

2. The high-stability biochemical analyzer according to claim 1, characterized in that, The top surface of the sample disc (3) and the reagent disc (4) is circumferentially provided with a plurality of placing grooves (6), and the top surface of the sample disc (3) and the reagent disc (4) is circumferentially provided with a resisting block (7), and the resisting block (7) and the placing groove (6) are correspondingly arranged.

3. The high-stability biochemical analyzer according to claim 1, characterized in that, The pipetting device (2) comprises a second motor (201), the second motor (201) is fixedly connected with the biochemical analyzer body (1), the output end of the second motor (201) is fixedly connected with a driving rod (202), the top end of the driving rod (202) is fixedly connected with a rotating plate (203), the bottom of the rotating plate (203) is fixedly connected with a plurality of electric telescopic rods (204) on the side away from the driving rod (202), and the bottom end of the electric telescopic rod (204) is fixedly connected with a clamping block (205).

4. The high-stability biochemical analyzer according to claim 3, characterized in that, The bottom of the clamping block (205) is fixedly connected with a plurality of second springs (206), the bottom of the second spring (206) is fixedly connected with an arc-shaped block (207), the arc-shaped block (207) is symmetrically arranged, the arc-shaped block (207) is correspondingly arranged with the resisting block (7), the between the arc-shaped blocks (207) is provided with a rubber dropper (208), the top surface of the rubber dropper (208) is fixedly connected with a convex block (209), the convex block (209) is located in the clamping block (205), the top surface of the convex block (209) is provided with a reserved hole (210), the rear side of the convex block (209) is abutted with a plurality of first springs (9), and the first spring (9) is fixedly connected with the clamping block (205).

5. The high-stability biochemical analyzer according to claim 1, wherein, The clamping device (8) comprises an unlocking button (801), the unlocking button (801) is located on the front surface of the clamping block (205) and the middle upper part, the rear side of the unlocking button (801) is provided with a third spring (802) outside, the third spring (802) is fixedly connected with the clamping block (205), the rear end of the unlocking button (801) is fixedly connected with a first inclined block (803), the rear side of the first inclined block (803) is provided with a second inclined block (804), the second inclined block (804) is correspondingly arranged with the first inclined block (803), the rear side of the second inclined block (804) is fixedly connected with a plug rod (806), the plug rod (806) is correspondingly arranged with the reserved hole (210), the top of the plug rod (806) is fixedly connected with a fourth spring (805), and the fourth spring (805) is fixedly connected with the clamping block (205).

6. The high-stability biochemical analyzer of claim 1, wherein, The material transferring device (5) comprises a special-shaped rotating disc (502) fixedly connected with the sample disc (3) and the reagent disc (4) respectively, a supporting rod (501) rotatably connected to the middle of the bottom surface of the special-shaped rotating disc (502), the bottom of the supporting rod (501) fixedly connected with the biochemical analyzer main body (1), and a rotating double roller (503) engaged with the outside of the special-shaped rotating disc (502), the middle of the bottom surface of the rotating double roller (503) fixedly connected with a first motor (504), and the first motor (504) fixedly connected with the biochemical analyzer main body (1).