Quantitative sample adding device for erythrocyte sedimentation rate detection sample

Abstract

The utility model discloses a quantitative sample adding device for erythrocyte sedimentation rate detection samples, which comprises a support component for fixing the quantitative sample adding device, a movable horizontal moving component and a vertical moving component are fixedly mounted on the upper surface of the support component, and a quantitative sampling component is mounted at the bottom of the vertical moving component in a driving manner; the vertical moving assembly comprises a second mounting plate, the second mounting plate and an electric push rod are mounted through bolts, a sliding rail is mounted on the upper surface of the second mounting plate through bolts, a servo motor is fixedly mounted at the top end of the second mounting plate, a supporting seat is fixedly mounted at the bottom end of the second mounting plate, and a threaded rod is arranged at the driving end of the servo motor. The threaded rod is in threaded installation with the top of the installation block, and a quantitative sampling assembly is fixedly installed at the bottom of the installation block. Through accurate control of the servo motor and the electric push rod, quantitative suction and discharge of a sample are realized, automatic operation is realized in the whole sample adding process, and the problems of blood dripping and sample pollution in the manual operation process are avoided.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of medical auxiliary equipment technology, and more specifically, relate to a quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing samples. Background Technology

[0002] Erythrocyte sedimentation rate (ESR) is the rate at which red blood cells settle per unit time. Its value is affected by the size, shape, number, and other plasma components of red blood cells. It serves as a prognostic and treatment indicator for certain diseases, such as rheumatic fever and tuberculosis, and can also be used as a reference indicator for differentiating certain functional and organic diseases. Currently, ESR is mostly measured using the Widmanstätten method. The Widmanstätten method is a graduated glass tube. A blood sample mixed with an anticoagulant at a certain ratio is drawn into the Widmanstätten method ESR tube, which is placed vertically on an ESR stand. The initial height of the red blood cell sedimentation is recorded. After 60 minutes of natural sedimentation, the sedimentation height is recorded, which gives the natural sedimentation height of red blood cells within 1 hour. This is the ESR result required clinically.

[0003] However, the current experiment involves manually opening the black-capped tube and then using a pipette to draw blood into the middle of the glass tube's graduation mark. This process is cumbersome and difficult to control, easily resulting in too much or too little blood. Furthermore, manual operation involves directly interpreting the sedimentation mark, which introduces human error. In addition, the manual operation requires separating the pipette from the squeeze bulb, which may cause blood to drip and contaminate the testing environment. Utility Model Content

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing. Through precise control of a servo motor and an electric push rod, quantitative sample aspiration and dispensing are achieved, automating the entire addition process and avoiding blood dripping and sample contamination issues associated with manual operation.

[0005] To achieve the above objectives, a support assembly for fixing a quantitative sampling device is included, wherein a movable horizontal moving component and a vertical moving component are fixedly mounted on the upper surface of the support assembly, and a quantitative sampling component is driven to be mounted on the bottom of the vertical moving component.

[0006] The horizontal moving component includes a convex rail, an electric push rod, and a first slider. The convex rail is fixedly installed on the upper surface of the support component. The drive end of the electric push rod is fixedly installed with the first slider. The first slider is slidably installed on one side of the convex rail. One side of the first slider is fixedly installed with the vertical moving component.

[0007] The vertical movement assembly includes a second mounting plate, a slide rail, a servo motor, a mounting block, and a support base. The second mounting plate is bolted to the electric push rod, the slide rail is bolted to the upper surface of the second mounting plate, the servo motor is fixedly mounted at the top of the second mounting plate, the support base is fixedly mounted at the bottom of the second mounting plate, a connecting hole is provided in the middle of the support base, the drive end of the servo motor is provided with a threaded rod, the threaded rod is threaded to the top of the mounting block, and a quantitative sampling assembly is fixedly mounted at the bottom of the mounting block.

[0008] The quantitative sampling assembly includes a push-pull rod and a pipette. The push-pull rod is fixedly installed at the bottom end of the mounting block, and the pipette is fixedly installed inside the communicating hole. A rubber piston is provided at the bottom end of the push-pull rod, and the rubber piston is located in the cavity of the pipette. A suction nozzle is provided at the bottom end of the pipette.

[0009] Preferably, the support assembly includes a base, a test tube rack is fixedly mounted on the upper surface of the base, the test tube rack is provided with black-headed tubes and thin glass tubes, an L-shaped support plate is fixedly mounted on one side of the base, and a convex rail is fixedly mounted on the surface of the L-shaped support plate.

[0010] Preferably, the horizontal moving assembly further includes a first mounting plate and an L-shaped fixing seat. The first mounting plate is welded to the upper surface of the L-shaped support plate. The electric push rod is fixedly mounted in the middle of the first mounting plate. The drive end of the electric push rod is fixedly mounted to the L-shaped fixing seat. The L-shaped fixing seat is bolted to the top surface of the first slider.

[0011] Preferably, a guide rail is provided inside one side of the first slider, and the guide rail is slidably connected to the electric push rod.

[0012] Preferably, an inclined plate is provided on one side of the L-shaped support plate, the bottom surface of the inclined plate is welded to the base, and a baffle for blocking the first slider is provided at the top of the L-shaped support plate.

[0013] Preferably, a second slide rail is slidably installed inside the slide rail, and both ends of the mounting block are bolted to the second slide rail.

[0014] Preferably, a fixing seat is provided at the top of the second mounting plate, and the servo motor is bolted to the fixing seat.

[0015] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0016] (1) This utility model adjusts the position of the quantitative sampling component by using the horizontal moving component to align it with the sample container, starts the servo motor, adjusts the insertion depth of the pipette by using the vertical moving component, starts the electric push rod, inserts the pipette into the sample container by using the horizontal moving component, operates the push-pull rod, moves the rubber piston inside the pipette to absorb a predetermined amount of sample, pulls the pipette out of the sample container, and moves it to the erythrocyte sedimentation rate tube or other detection container by using the horizontal moving component, operates the push-pull rod again to discharge the sample into the detection container. Through the precise control of the servo motor and the electric push rod, the quantitative absorption and discharge of the sample are realized, reducing the error of human operation. The entire sample addition process is automated, improving experimental efficiency and avoiding the problems of blood dripping and sample contamination during manual operation.

[0017] (2) The base of this utility model serves as the supporting foundation for the entire device, ensuring the stability and load-bearing capacity of the device. The test tube rack is used to fix and support the black-headed tubes and thin glass tubes, ensuring their stability and ease of operation during the experiment. The black-headed tubes are used to store the blood samples to be tested. The design of the black-headed tubes should facilitate sample aspiration and prevent sample contamination during storage and transportation. The thin glass tubes are usually used in the Widmanstätten method in erythrocyte sedimentation rate detection as containers for measuring the sedimentation rate of red blood cells. The scale of the thin glass tubes should be clear and accurate to read the sedimentation results. The L-shaped support plate provides support and guidance for the horizontal moving components, ensuring their stability and accuracy during movement. The design of the support components fully considers the convenience, stability and accuracy of experimental operation. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This is a structural diagram of the horizontal moving component of this utility model;

[0020] Figure 3 This is a structural diagram of the vertical moving component of this utility model;

[0021] Figure 4 This is an unfolded view of the vertical moving component of this utility model;

[0022] Figure 5 This is a structural diagram of the L-shaped support plate of this utility model;

[0023] Figure 6 This is a structural diagram of the quantitative sampling component of this utility model.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-support assembly; 11-base; 12-test tube rack; 13-black-head tube; 14-thin glass tube; 15-L-shaped support plate; 151-sloping plate; 152-baffle; 2-horizontal movement assembly; 21-convex rail; 22-first mounting plate; 23-electric push rod; 24-L-shaped fixed seat; 25-first slider; 251-guide rail; 3-vertical movement assembly; 31-second mounting plate; 311-fixed seat; 32-slide rail; 321-second slide rail; 33-servo motor; 331-threaded rod; 34-mounting block; 35-support base; 351-connecting hole; 4-quantitative sampling assembly; 41-push-pull rod; 411-rubber piston; 42-pipette; 421-nozzle. Detailed Implementation

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] 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 only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] A quantitative sample loading device for erythrocyte sedimentation rate (ESR) testing, comprising, as follows: Figures 1-6 As shown in this embodiment of the utility model, it includes a support assembly 1 for fixing a quantitative sampling device. A movable horizontal moving assembly 2 and a vertical moving assembly 3 are fixedly mounted on the upper surface of the support assembly 1. A quantitative sampling assembly 4 is driven to be mounted on the bottom of the vertical moving assembly 3. The horizontal moving assembly 2 includes a convex rail 21, an electric push rod 23, and a first slider 25. The convex rail 21 is fixedly mounted on the upper surface of the support assembly 1. The driving end of the electric push rod 23 is fixedly mounted to the first slider 25. The first slider 25 is slidably mounted on one side of the convex rail 21, and one side of the first slider 25 is fixedly mounted to the vertical moving assembly 3. The vertical moving assembly 3 includes a second mounting plate 31, a slide rail 32, a servo motor 33, a mounting block 34, and a support base 35. The second mounting plate 31 is screwed to the electric push rod 23. The slide rail 32 is bolted to the upper surface of the second mounting plate 31. The servo motor 33 is fixedly mounted on the top of the second mounting plate 31. The support base 35 is fixedly mounted on the bottom of the second mounting plate 31. A connecting hole 351 is opened in the middle of the support base 35. The drive end of the servo motor 33 is provided with a threaded rod 331. The threaded rod 331 is threadedly installed with the top of the mounting block 34. A quantitative sampling component 4 is fixedly mounted on the bottom of the mounting block 34. The quantitative sampling component 4 includes a push-pull rod 41 and a suction tube 42. The push-pull rod 41 is fixedly mounted on the bottom of the mounting block 34. The suction tube 42 is fixedly mounted inside the connecting hole 351. A rubber piston 411 is provided at the bottom of the push-pull rod 41. The rubber piston 411 is located in the cavity of the suction tube 42. A suction nozzle 421 is provided at the bottom of the suction tube 42.

[0030] In this embodiment, the support component 1 is used to fix the entire quantitative sampling device and provide stable support. The horizontal moving component 2 realizes the horizontal movement of the quantitative sampling component 4 so as to accurately align the pipette 42 with the sample container. The electric push rod 23 drives the first slider 25 to slide on the convex rail 21, thereby driving the vertical moving component 3 and the quantitative sampling component 4 to move horizontally. The vertical moving component 3 realizes the vertical movement of the quantitative sampling component 4 so as to accurately control the depth of the pipette 42 inserted into the sample container. The servo motor 33 drives the threaded rod 331 to rotate, thereby driving the mounting block 34 and the quantitative sampling component 4 to move vertically on the slide rail 32. The support base 35 is used to fix the pipette 42 and ensure its stable operation. The push-pull rod 41 moves in the cavity of the pipette 42 through the rubber piston 411, thereby controlling the sample aspiration and discharge. The bottom end of the pipette 42 is provided with a suction nozzle 421 for contacting the sample container and aspirating the sample.

[0031] Operating Procedure: Place the device on a stable experimental platform and ensure that the support component 1 is firmly fixed. Place the sample container in a suitable position and adjust the position of the quantitative sampling component 4 with the horizontal moving component 2 to align it with the sample container. Start the servo motor 33 and adjust the insertion depth of the pipette 42 with the vertical moving component 3. Start the electric push rod 23 and insert the pipette 42 into the sample container with the horizontal moving component 2. Operate the push-pull rod 41 to move the rubber piston 411 inside the pipette 42 to draw a predetermined amount of sample. Pull the pipette 42 out of the sample container and move it to the erythrocyte sedimentation rate tube or other testing container with the horizontal moving component 2. Operate the push-pull rod 41 again to discharge the sample into the testing container.

[0032] With precise control of the servo motor 33 and the electric push rod 23, quantitative sample aspiration and discharge are achieved, reducing human error. The entire sample addition process is automated, improving experimental efficiency and avoiding blood dripping and sample contamination problems during manual operation.

[0033] Specifically, the support component 1 includes a base 11, a test tube rack 12 is fixedly installed on the upper surface of the base 11, a black-headed tube 13 and a thin glass tube 14 are provided on the test tube rack 12, an L-shaped support plate 15 is fixedly installed on one side of the base 11, and a convex rail 21 is fixedly installed on the surface of the L-shaped support plate 15.

[0034] In this embodiment, the base 11 serves as the supporting foundation for the entire device, ensuring its stability and load-bearing capacity. The test tube rack 12 is used to fix and support the black-headed tube 13 and the thin glass tube 14, ensuring their stability and ease of operation during the experiment. The black-headed tube 13 is used to store the blood sample to be tested. The design of the black-headed tube 13 should facilitate sample aspiration and prevent sample contamination during storage and transportation. The thin glass tube 14 is commonly used in the Widmanstätten method for erythrocyte sedimentation rate testing. As a container for measuring the sedimentation rate of erythrocytes, the scale of the thin glass tube 14 should be clear and accurate to read the sedimentation results. The L-shaped support plate 15 provides support and guidance for the horizontal moving component 2, ensuring its stability and accuracy during movement. The design of the support component 1 fully considers the convenience, stability, and accuracy of experimental operation.

[0035] Specifically, the horizontal moving assembly 2 also includes a first mounting plate 22 and an L-shaped fixing seat 24. The first mounting plate 22 is welded to the upper surface of the L-shaped support plate 15. The electric push rod 23 is fixedly installed in the middle of the first mounting plate 22. The drive end of the electric push rod 23 is fixedly installed with the L-shaped fixing seat 24. The L-shaped fixing seat 24 is bolted to the top surface of the first slider 25.

[0036] In this embodiment, the first mounting plate 22 of the horizontal moving component 2 serves as the support and fixing structure for the electric push rod 23, ensuring the stability and accuracy of the electric push rod 23 in the horizontal direction. The first mounting plate 22 is fixedly installed on the upper surface of the L-shaped support plate 15 by welding, ensuring its stability and preventing loosening during the experiment. The electric push rod 23 provides driving force in the horizontal direction, causing the first slider 25 and the connected vertical moving component 3 to slide on the convex rail 21. The electric push rod 23 is fixedly installed in the middle of the first mounting plate 22, and its driving end is fixedly installed with the L-shaped fixing seat 24. This installation method helps to maintain the water level of the electric push rod 23 during operation. In a flat state, to reduce errors caused by tilting, the L-shaped fixing seat 24 serves as a connector between the drive end of the electric push rod 23 and the first slider 25, ensuring effective transmission of driving force and stable movement of the first slider 25 in the horizontal direction. The L-shaped fixing seat 24 is usually designed with an L-shaped structure, with one end fixedly connected to the drive end of the electric push rod 23 and the other end installed on the top surface of the first slider 25 by bolts. This helps to disperse the driving force and reduce wear and deformation caused by concentrated force. The first slider 25 is usually designed as a sliding structure that matches the shape of the convex rail 21. The top surface of the first slider 25 is designed with bolt holes that match the L-shaped fixing seat 24 for easy installation and fixing.

[0037] Specifically, a guide rail 251 is provided inside one side of the first slider 25, and the guide rail 251 is slidably connected to the electric push rod 23.

[0038] In this embodiment, when the electric push rod 23 is working, its driving end slides along the guide rail 251, thereby driving the first slider 25 to move on the convex rail 21. Since a tight sliding fit is formed between the guide rail 251 and the driving end of the electric push rod 23, the stability and accuracy of the first slider 25 during movement can be ensured, frictional resistance can be reduced, sliding efficiency can be improved, and wear and noise can be reduced.

[0039] Specifically, an inclined plate 151 is provided on one side of the L-shaped support plate 15, the bottom surface of the inclined plate 151 is welded to the base 11, and a baffle 152 for blocking the first slider 25 is provided at the top of the L-shaped support plate 15.

[0040] In this embodiment, by designing additional structures such as inclined plate 151 and baffle 152, the stability and functionality of L-shaped support plate 15 can be further enhanced. Inclined plate 151 not only enhances the connection strength between L-shaped support plate 15 and base 11, but also facilitates installation and adjustment; while baffle 152 effectively limits the movement range of the first slider 25, ensuring the smooth and precise movement of the entire device in the horizontal direction.

[0041] Specifically, a second slide rail 321 is slidably installed inside the slide rail 32, and the two ends of the mounting block 34 are bolted to the second slide rail 321.

[0042] In this embodiment, by designing structures such as slide rail 32, second slide rail 321 and mounting block 34, the vertical moving component 3 can move smoothly and accurately in the vertical direction. Slide rail 32 provides a stable sliding track for second slide rail 321, while second slide rail 321 carries and drives mounting block 34 and quantitative sampling component 4 to move vertically. Mounting block 34, as a connecting component, ensures a firm connection between quantitative sampling component 4 and vertical moving component 3.

[0043] Specifically, a mounting base 311 is provided at the top of the second mounting plate 31, and the servo motor 33 is bolted to the mounting base 311.

[0044] In this embodiment, by designing structures such as the second mounting plate 31, the fixed base 311, and the servo motor 33, and connecting them reasonably, the vertical moving component 3 can achieve smooth and precise movement in the vertical direction. The second mounting plate 31 serves as a support and fixing structure, bearing and fixing the fixed base 311 and the servo motor 33. The fixed base 311 serves as a fixing and supporting component for the servo motor 33, ensuring the stability and accuracy of the servo motor 33. The servo motor 33 serves as a power source, providing driving force in the vertical direction.

[0045] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A quantitative sample loading device for erythrocyte sedimentation rate (ESR) testing, characterized in that: It includes a support assembly (1) for fixing a quantitative sampling device, wherein a movable horizontal moving assembly (2) and a vertical moving assembly (3) are fixedly installed on the upper surface of the support assembly (1), and a quantitative sampling assembly (4) is driven to be installed at the bottom of the vertical moving assembly (3). The horizontal moving component (2) includes a convex rail (21), an electric push rod (23), and a first slider (25). The convex rail (21) is fixedly installed on the upper surface of the support component (1). The driving end of the electric push rod (23) is fixedly installed with the first slider (25). The first slider (25) is slidably installed on one side of the convex rail (21). One side of the first slider (25) is fixedly installed with the vertical moving component (3). The vertical moving component (3) includes a second mounting plate (31), a slide rail (32), a servo motor (33), a mounting block (34), and a support base (35). The second mounting plate (31) is bolted to the electric push rod (23). The slide rail (32) is bolted to the upper surface of the second mounting plate (31). The servo motor (33) is fixedly mounted on the top of the second mounting plate (31). The support base (35) is fixedly mounted on the bottom of the second mounting plate (31). A connecting hole (351) is provided in the middle of the support base (35). A threaded rod (331) is provided at the drive end of the servo motor (33). The threaded rod (331) is threaded to the top of the mounting block (34). A quantitative sampling component (4) is fixedly mounted on the bottom of the mounting block (34). The quantitative sampling component (4) includes a push-pull rod (41) and a pipette (42). The push-pull rod (41) is fixedly installed at the bottom end of the mounting block (34), and the pipette (42) is fixedly installed inside the connecting hole (351). A rubber piston (411) is provided at the bottom end of the push-pull rod (41), and the rubber piston (411) is located in the cavity of the pipette (42). A suction nozzle (421) is provided at the bottom end of the pipette (42).

2. The quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing according to claim 1, characterized in that: The support assembly (1) includes a base (11), on the upper surface of the base (11) a test tube rack (12) is fixedly installed, on the test tube rack (12) a black tube (13) and a thin glass tube (14) are provided, and an L-shaped support plate (15) is fixedly installed on one side of the base (11), and the convex rail (21) is fixedly installed on the surface of the L-shaped support plate (15).

3. The quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing according to claim 2, characterized in that: The horizontal moving assembly (2) further includes a first mounting plate (22) and an L-shaped fixing seat (24). The first mounting plate (22) is welded to the upper surface of the L-shaped support plate (15). The electric push rod (23) is fixedly installed in the middle of the first mounting plate (22). The driving end of the electric push rod (23) is fixedly installed with the L-shaped fixing seat (24). The L-shaped fixing seat (24) is bolted to the top surface of the first slider (25).

4. The quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing according to claim 1, characterized in that: The first slider (25) has a guide rail (251) inside one side, and the guide rail (251) is slidably connected to the electric push rod (23).

5. A quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing according to claim 2, characterized in that... The L-shaped support plate (15) has an inclined plate (151) on one side. The bottom surface of the inclined plate (151) is welded to the base (11). The top of the L-shaped support plate (15) has a baffle (152) for blocking the first slider (25).

6. The quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing according to claim 1, characterized in that... The slide rail (32) has a second slide rail (321) slidably installed inside it, and the two ends of the mounting block (34) are bolted to the second slide rail (321).

7. The quantitative sample addition device for erythrocyte sedimentation rate (ESR) testing according to claim 1, characterized in that... The top of the second mounting plate (31) is provided with a fixing seat (311), and the servo motor (33) is bolted to the fixing seat (311).

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