Sample needle cleaning device for preventing cross contamination

Abstract

The utility model belongs to sample needle technical field, concretely relates to a sample needle cleaning device of preventing cross -contamination, including fixed base and the cylindrical hollow shell of setting at the top of fixed base, the top of cylindrical hollow shell is provided with telescopic subassembly, is provided with the first connecting rod on telescopic subassembly, the outside of cylindrical hollow shell is provided with sliding support subassembly and first connecting plate in array, is provided with the second connecting plate of first connecting rod connection on sliding support subassembly, the one side of second connecting plate is installed cylindrical sealing sleeve, is seted up in the rotating hole on cylindrical sealing sleeve, is provided with rotating assembly in rotating hole inside, is provided with the impurity brush of rotating assembly, first connecting plate one side is provided with support seat. The device effectively solved the cross -contamination risk in the sample needle cleaning process, provides reliable guarantee for sample detection.

Description

Technical Field

[0001] This utility model belongs to the field of sample needle technology, specifically relating to a sample needle cleaning device that prevents cross-contamination. Background Technology

[0002] In medical testing, scientific research, and other fields, sample needles are widely used for sample collection and transfer. As a critical component that directly contacts the sample, the cleaning effectiveness of the sample needle directly affects the accuracy and reliability of the test results. If the sample needle is not thoroughly cleaned, it can not only lead to cross-contamination between samples, causing deviations in subsequent test results and affecting the accuracy of disease diagnosis and the scientific validity of research conclusions, but it can also cause blockage of the sample needle due to sample residue, hindering normal sample aspiration and transfer, reducing testing efficiency, and increasing equipment maintenance costs.

[0003] Currently, various sample needle cleaning devices are available on the market. Some devices use a simple immersion cleaning method, soaking the sample needle in a cleaning solution and relying on the dissolving effect of the solution to remove sample residue. However, this method has low cleaning efficiency, is difficult to completely remove stubborn sample residue, and the sample needle is easily recontaminated by the external environment after immersion. Other devices utilize ultrasonic cleaning principles, using the cavitation effect of ultrasound to remove dirt from the surface of the sample needle. However, this method may cause some damage to the sample needle, affecting its lifespan. Furthermore, ultrasonic cleaning equipment is relatively expensive and complex to operate.

[0004] Furthermore, existing sample needle cleaning devices are significantly inadequate in preventing cross-contamination. Many devices lack effective sealing measures, allowing cleaning solution to easily splash out during the cleaning process, leading to cross-contamination between different samples. Moreover, some devices do not effectively filter and purify the cleaning solution during recycling, causing impurities in the cleaning solution to re-adhere to the sample needles, resulting in secondary contamination.

[0005] To address this issue, we propose a sample needle cleaning device that prevents cross-contamination. This device effectively solves the risk of cross-contamination during the sample needle cleaning process, providing a reliable guarantee for sample testing. Utility Model Content

[0006] The purpose of this invention is to provide a sample needle cleaning device that prevents cross-contamination. This device effectively solves the risk of cross-contamination during the sample needle cleaning process and provides a reliable guarantee for sample testing.

[0007] The specific technical solution adopted by this utility model is as follows:

[0008] A sample needle cleaning device to prevent cross-contamination includes a fixed base and a cylindrical hollow shell disposed on the top of the fixed base. A telescopic component is disposed on the top of the cylindrical hollow shell, and a first connecting rod is disposed on the telescopic component. A sliding support component and a first connecting plate are arranged in an array on the outer side of the cylindrical hollow shell. A second connecting plate connected to the first connecting rod is disposed on the sliding support component. A cylindrical sealing sleeve is installed on one side of the second connecting plate. A rotating hole is opened on the cylindrical sealing sleeve. A rotating component is disposed inside the rotating hole. A cleaning brush is disposed on the rotating component. A support base is disposed on one side of the first connecting plate. A threaded hole for fixing the sample needle is opened on the support base.

[0009] The cylindrical hollow shell is provided with a first conduit and a second conduit connected to it. A water pump is provided on the first conduit and the second conduit. A hollow ring is provided on one side of the first conduit and the second conduit. A first liquid inlet pipe and a first liquid outlet pipe are respectively provided on the outside of the two hollow rings. The first liquid inlet pipe and the first liquid outlet pipe are both connected to the support base.

[0010] Furthermore, a partition plate is provided inside the cylindrical hollow shell, which divides the cylindrical hollow shell into a cleaning fluid storage chamber and a waste fluid storage chamber. The cleaning fluid storage chamber is connected to the first conduit, and the waste fluid storage chamber is connected to the second conduit.

[0011] Furthermore, a second inlet pipe is provided on the cleaning fluid storage chamber, and a second outlet pipe is provided on the waste fluid storage chamber.

[0012] Furthermore, the telescopic assembly includes an electric telescopic rod disposed on the top of the cylindrical hollow shell, the telescopic end of the electric telescopic rod being provided with a connecting plate, and the outer side of the connecting plate being connected to a plurality of the first connecting rods.

[0013] Furthermore, the sliding support assembly includes a groove formed on the outside of the cylindrical hollow shell, a fixed shaft is provided inside the groove, a slider is sleeved on the fixed shaft, and one side of the slider is connected to the second connecting plate.

[0014] Furthermore, the support base is provided with a circular sealing groove, and the bottom of the cylindrical sealing sleeve is provided with a circular sealing ring that matches the circular sealing groove.

[0015] Furthermore, the rotating assembly includes a rotating rod rotatably disposed inside the rotating hole, a support disk located inside the cylindrical sealing sleeve at the bottom of the rotating rod, the bottom of the support disk being connected to the impurity removal brush, and a pulley at the top of the rotating rod, with a transmission toothed belt fitted on multiple pulleys, and a motor disposed on one of the pulleys.

[0016] The technical effects achieved by this utility model are as follows:

[0017] First, the threaded sample needle is fixed in the threaded hole on the support base. Then, the telescopic assembly is activated, which drives the first connecting rod to move the second connecting plate downward through the sliding support assembly, thereby making the cylindrical sealing sleeve fit tightly against the support base to prevent cross-contamination during sample needle cleaning. Then, the water pump on the first conduit is activated, which allows the cleaning solution inside the cylindrical hollow shell to enter the cylindrical sealing sleeve through the first conduit, the corresponding hollow ring, and the first inlet pipe, filling the cylindrical sealing sleeve with cleaning solution. Then, the rotating assembly is activated, which drives the impurity removal brush to rotate against the outside of the sample needle for cleaning. After cleaning, the first inlet pipe is closed, the first drain pipe is opened, and the water pump on the second conduit is activated, allowing the cleaning solution inside the cylindrical sealing sleeve to exit through the first drain pipe, the corresponding hollow ring, and the second conduit into the cylindrical hollow shell. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model during operation;

[0020] Figure 3 This is a schematic diagram of the cylindrical sealing sleeve of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the support base of this utility model;

[0022] Figure 5 This is a cross-sectional view of the cylindrical hollow shell of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Fixed base; 2. Cylindrical hollow shell; 3. First connecting rod; 4. First connecting plate; 5. Second connecting plate; 6. Cylindrical sealing sleeve; 7. Impurity removal brush; 8. Support seat; 9. Threaded hole; 10. First conduit; 11. Second conduit; 12. Hollow ring; 13. First inlet pipe; 14. First outlet pipe; 15. Divider plate; 16. Electric telescopic rod; 17. Connecting plate; 18. Slide groove; 19. Fixed shaft; 20. Sliding block; 21. Circular sealing groove; 22. Circular sealing ring; 23. Rotating rod; 24. Support plate; 25. Pulley; 26. Transmission toothed belt; 27. Motor. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figures 1-5 As shown, a sample needle cleaning device for preventing cross-contamination includes a fixed base 1 and a cylindrical hollow shell 2 disposed on the top of the fixed base 1. A telescopic component is disposed on the top of the cylindrical hollow shell 2, and a first connecting rod 3 is disposed on the telescopic component. A sliding support component and a first connecting plate 4 are arranged in an array on the outer side of the cylindrical hollow shell 2. A second connecting plate 5 connected to the first connecting rod 3 is disposed on the sliding support component. A cylindrical sealing sleeve 6 is installed on one side of the second connecting plate 5. A rotating hole is opened on the cylindrical sealing sleeve 6, and a rotating component is disposed inside the rotating hole. A cleaning brush 7 is disposed on the rotating component. A support seat 8 is disposed on one side of the first connecting plate 4, and a threaded hole 9 for fixing the sample needle is opened on the support seat 8.

[0027] A first conduit 10 and a second conduit 11 are provided on the outside of the cylindrical hollow shell 2 and are connected thereto. A water pump is provided on the first conduit 10 and the second conduit 11, and a hollow ring 12 is provided on one side of the first conduit 10 and the second conduit 11. A first liquid inlet pipe 13 and a first liquid outlet pipe 14 are respectively provided on the outside of the two hollow rings 12. Both the first liquid outlet pipe 14 and the first liquid inlet pipe 13 are connected to the support base 8.

[0028] The cylindrical hollow shell 2 is provided with a partition plate 15, which divides the cylindrical hollow shell 2 into a cleaning fluid storage chamber and a waste fluid storage chamber. The cleaning fluid storage chamber is connected to the first conduit 10, and the waste fluid storage chamber is connected to the second conduit 11.

[0029] The cleaning fluid is stored in the cleaning fluid storage chamber, and the waste fluid is stored in the waste fluid storage chamber.

[0030] Meanwhile, a second inlet pipe is installed on the cleaning fluid storage chamber, and a second outlet pipe is installed on the waste fluid storage chamber. The cleaning fluid enters through the second inlet pipe. The externally stored cleaning fluid can be manually or by a water pump to enter the cleaning fluid storage chamber through the second inlet pipe. When the waste fluid in the waste fluid storage chamber needs to be discharged, it is discharged through the second outlet pipe. The second outlet pipe is equipped with a sealing cap and an electric control valve. The waste fluid can be discharged by opening the sealing cap or periodically by discharging through the electric control valve.

[0031] The telescopic assembly includes an electric telescopic rod 16 disposed on the top of the cylindrical hollow shell 2. The telescopic end of the electric telescopic rod 16 is provided with a connecting plate 17. The outer side of the connecting plate 17 is connected to a plurality of first connecting rods 3. The electric telescopic rod 16 drives the connecting plate 17 to move the plurality of first connecting rods 3 up and down to perform the operation.

[0032] The sliding support assembly includes a slide groove 18 opened on the outside of the cylindrical hollow shell 2. A fixed shaft 19 is provided inside the slide groove 18. A slider 20 is sleeved on the fixed shaft 19. One side of the slider 20 is connected to the second connecting plate 5. When the second connecting plate 5 moves, it drives the slider 20 to move inside the slide groove 18, thereby enabling it to move up and down.

[0033] The support base 8 has a circular sealing groove 21, and the bottom of the cylindrical sealing sleeve 6 is provided with a circular sealing ring 22 that matches the circular sealing groove 21. When the cylindrical sealing sleeve 6 is sealed by the support base 8, the circular sealing ring 22 enters the circular sealing groove 21 to further enhance the sealing effect.

[0034] To further improve the sealing effect, a rubber sealing ring is provided on the circular sealing ring 22. The rubber sealing ring further improves the sealing effect. At the same time, the rubber sealing ring is made of corrosion-resistant material, such as fluororubber. Furthermore, the circular sealing ring and the rubber sealing ring are detachably connected by a compression fitting method. This design makes it convenient to disassemble and replace the rubber sealing ring if it is damaged.

[0035] The rotating assembly includes a rotating rod 23 rotatably disposed inside a rotating hole. A support plate 24 located inside a cylindrical sealing sleeve 6 is disposed at the bottom of the rotating rod 23. The bottom of the support plate 24 is connected to a cleaning brush 7. A pulley 25 is disposed at the top of the rotating rod 23. A transmission toothed belt 26 is sleeved on multiple pulleys 25. A motor 27 is disposed on one of the pulleys 25. The motor 27 is connected to the cylindrical hollow housing 2 through a fixing frame. The motor 27 drives one of the pulleys 25 to rotate, and drives the remaining rotating rods 23 to rotate through the transmission toothed belt 26. The rotating rods 23 drive the cleaning brush 7 to rotate, thereby cleaning the sample needle.

[0036] It should be noted that the impurity removal brush 7 and the support plate 24 are detachably connected, for example, by snap-fit ​​or threaded connection. This design makes it easy to replace and disassemble the impurity removal brush 7 after it wears out.

[0037] In order to control the opening and closing of the first inlet pipe 13 and the first outlet pipe 14, electric control valves are installed on both the first inlet pipe 13 and the first outlet pipe 14.

[0038] It should be noted that sample needles can also be fixed using clips and bolts. This allows for the cleaning of sample needles without threaded openings, and is existing technology, so it will not be elaborated on here.

[0039] The working principle of this utility model is as follows: First, the sample needle (with threads) is fixed in the threaded hole 9 on the support base 8. Then, the telescopic component is activated, which drives the first connecting rod 3 to move the second connecting plate 5 downward through the sliding support component, thereby making the cylindrical sealing sleeve 6 tightly fit with the support base 8 for sealing, thus preventing cross-infection during sample needle cleaning. Then, the water pump on the first conduit 10 is activated, which causes the cleaning fluid inside the cylindrical hollow shell 2 to enter the cylindrical sealing sleeve 6 through the first conduit 10, the corresponding hollow ring 12, and the first inlet pipe 13 in sequence, filling the cylindrical sealing sleeve 6 with cleaning fluid. Then, the rotating component is activated, which drives the impurity removal brush 7 to rotate and fit against the outside of the sample needle for cleaning. After cleaning, the first inlet pipe 13 is closed, the first drain pipe 14 is opened, and the water pump on the second conduit 11 is activated, causing the cleaning fluid inside the cylindrical sealing sleeve 6 to be discharged through the first drain pipe 14, the corresponding hollow ring 12, and the second conduit 11 in sequence into the cylindrical hollow shell 2.

[0040] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A sample needle cleaning device for preventing cross-contamination, comprising a fixed base (1) and a cylindrical hollow shell (2) disposed on the top of the fixed base (1), characterized in that: The top of the cylindrical hollow shell (2) is provided with a telescopic component, and the telescopic component is provided with a first connecting rod (3). The outer side of the cylindrical hollow shell (2) is provided with a sliding support component and a first connecting plate (4). The sliding support component is provided with a second connecting plate (5) connected to the first connecting rod (3). A cylindrical sealing sleeve (6) is installed on one side of the second connecting plate (5). A rotating hole is opened on the cylindrical sealing sleeve (6). A rotating component is provided inside the rotating hole. A cleaning brush (7) is provided on the rotating component. A support seat (8) is provided on one side of the first connecting plate (4). A threaded hole (9) for fixing the sample needle is opened on the support seat (8). The cylindrical hollow shell (2) is provided with a first conduit (10) and a second conduit (11) communicating with it. A water pump is provided on the first conduit (10) and the second conduit (11). A hollow ring (12) is provided on one side of the first conduit (10) and the second conduit (11). A first liquid inlet pipe (13) and a first liquid outlet pipe (14) are respectively provided on the outside of the two hollow rings (12). The first liquid inlet pipe (13) and the first liquid outlet pipe (14) are both connected to the support base (8).

2. The sample needle cleaning device for preventing cross-contamination according to claim 1, characterized in that: The cylindrical hollow shell (2) is provided with a partition plate (15) inside, which divides the cylindrical hollow shell (2) into a cleaning fluid storage chamber and a waste fluid storage chamber. The cleaning fluid storage chamber is connected to the first conduit (10), and the waste fluid storage chamber is connected to the second conduit (11).

3. The sample needle cleaning device for preventing cross-contamination according to claim 2, characterized in that: The cleaning fluid storage chamber is provided with a second inlet pipe, and the waste fluid storage chamber is provided with a second outlet pipe.

4. The sample needle cleaning device for preventing cross-contamination according to claim 1, characterized in that: The telescopic assembly includes an electric telescopic rod (16) disposed on the top of the cylindrical hollow shell (2), and a connecting plate (17) is provided at the telescopic end of the electric telescopic rod (16). The outer side of the connecting plate (17) is connected to a plurality of first connecting rods (3).

5. The sample needle cleaning device for preventing cross-contamination according to claim 1, characterized in that: The sliding support assembly includes a groove (18) formed on the outside of the cylindrical hollow shell (2), a fixed shaft (19) is provided inside the groove (18), a slider (20) is sleeved on the fixed shaft (19), and one side of the slider (20) is connected to the second connecting plate (5).

6. The sample needle cleaning device for preventing cross-contamination according to claim 1, characterized in that: The support base (8) has a circular sealing groove (21), and the bottom of the cylindrical sealing sleeve (6) is provided with a circular sealing ring (22) that matches the circular sealing groove (21).

7. The sample needle cleaning device for preventing cross-contamination according to claim 1, characterized in that: The rotating assembly includes a rotating rod (23) rotatably disposed inside a rotating hole. The bottom of the rotating rod (23) is provided with a support plate (24) located inside the cylindrical sealing sleeve (6). The bottom of the support plate (24) is connected to the impurity removal brush (7). The top of the rotating rod (23) is provided with a pulley (25). A transmission toothed belt (26) is sleeved on a plurality of pulleys (25), and a motor (27) is provided on one of the pulleys (25).

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