Sampling device for medical examination

Abstract

The utility model discloses a sampling device for medical examination, which comprises a sampling tube, the two sides of the top of the sampling tube are fixedly connected with mounting plates, a piston rod is arranged in the sampling tube, the bottom end of the piston rod is fixedly connected with a piston, the top end of the piston rod is fixedly connected with a drawing plate, and the drawing plate is fixedly connected with the sampling tube. Baffles are fixedly connected to the two sides of the drawing plate, a mounting groove is fixedly connected to the top of the mounting plate, positioning holes are formed in the two sides of the mounting groove, a U-shaped plate is movably connected to the interior of the mounting groove, a sliding groove is formed in the inner wall of the U-shaped plate, and a limiting rod is fixedly connected to the inner wall of the sliding groove. The outer wall of a limiting rod is slidably connected with a quantitative plate, the quantitative plate can block baffles on the two sides of a drawing plate when the device is used for sampling, the drawing plate is prevented from continuously drawing upwards, accordingly, movement of a piston is prevented, quantitative sampling of samples is achieved, and the height of the quantitative plate can be adjusted by rotating a screw rod. And quantitative collection work of different doses can be realized.

Description

Technical Field

[0001] This utility model relates to the field of medical testing technology, specifically a sampling device for medical testing. Background Technology

[0002] Medical testing is a science that examines materials taken from the human body using microbiology, immunology, biochemistry, genetics, hematology, biophysics, cytology, and other methods to provide information for the prevention, diagnosis, and treatment of human diseases and the assessment of human health. Medical testing involves using a sampling device to extract a small sample, which is then tested using testing equipment.

[0003] Existing medical testing sampling devices do not have quantitative sampling capabilities and cannot accurately extract a specified dose of sample at once. Extracting too much sample at once will result in sample waste, while extracting too little sample will affect the accuracy of test results. Therefore, it is necessary to develop a medical testing sampling device with quantitative sampling capabilities. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for medical testing, which solves the problem that existing medical testing sampling devices do not have quantitative sampling function and cannot accurately extract a specified dose of sample at one time.

[0005] To achieve the above objectives, a sampling device for medical testing is provided, comprising: a sampling tube, a needle fixedly connected to the bottom of the sampling tube, mounting plates fixedly connected to both sides of the top of the sampling tube, a piston rod disposed inside the sampling tube, a piston fixedly connected to the bottom end of the piston rod, and a pull plate fixedly connected to the top end of the piston rod, to facilitate the sampling operation of the device;

[0006] The pull-out plate has baffles fixedly connected to both sides, and the top of the mounting plate has a mounting groove fixedly connected to it. Positioning holes are provided on both sides of the mounting groove. A U-shaped plate is movably connected inside the mounting groove. A sliding groove is provided on the inner wall of the U-shaped plate. A limit rod is fixedly connected to the inner wall of the sliding groove. A quantitative plate is slidably connected to the outer wall of the limit rod. Slider blocks are fixedly connected to both sides of the quantitative plate. A screw is movably connected to the top of the U-shaped plate. A knob is fixedly connected to the top of the screw. Mounting holes are provided on both sides of the U-shaped plate. A positioning spring is fixedly connected inside the mounting hole. A positioning block is fixedly connected to the other end of the positioning spring. This facilitates quantitative sampling of the sample and the installation and disassembly of the quantitative device.

[0007] According to the aforementioned medical testing sampling device, the shape and size of the piston are matched with the shape and size of the sampling tube, and the piston is slidably connected to the inner wall of the sampling tube, which facilitates the sampling of samples.

[0008] According to the aforementioned sampling device for medical testing, a limiting hole is provided inside the slider, and the shape and size of the limiting hole match the shape and size of the limiting rod. The slider is slidably connected to the limiting rod through the limiting hole, which facilitates the limiting of the quantitative plate.

[0009] According to the aforementioned medical testing sampling device, the top of the U-shaped plate is provided with a threaded hole, and the threaded hole is provided with threads. The threaded hole is engaged with the screw through the threads, which facilitates the adjustment of the screw height.

[0010] According to the aforementioned sampling device for medical testing, a bearing is fixedly connected to the top of the quantitative plate, and the bottom end of the screw is fixedly connected to the inner ring of the bearing to facilitate the rotation of the screw.

[0011] According to the aforementioned medical testing sampling device, the shape and size of the U-shaped plate are matched with the shape and size of the mounting groove, and the U-shaped plate is movably connected to the mounting groove, which facilitates the installation of the U-shaped plate.

[0012] According to the aforementioned sampling device for medical testing, the diameter of the mounting hole is larger than the diameter of the positioning block, and the positioning block is slidably connected to the inner wall of the mounting hole, which facilitates the positioning block to retract into the mounting hole.

[0013] According to the aforementioned sampling device for medical testing, the shape and size of the positioning block are matched with the shape and size of the positioning hole. When the position of the positioning block corresponds to the positioning hole, the positioning block is movably connected to the positioning hole under the elastic force of the positioning spring, which facilitates the connection between the positioning block and the positioning hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This medical testing sampling device features a quantitative plate that blocks the baffles on both sides of the pull-out plate during sampling, preventing the pull-out plate from continuing to move upward and thus stopping the piston's movement. This achieves quantitative sampling of the sample. Simultaneously, the height of the quantitative plate can be adjusted by rotating the screw, enabling quantitative collection of different doses and improving the practicality of the medical testing sampling device.

[0016] 2. This medical testing sampling device, with its mounting groove, positioning hole, U-shaped plate, mounting hole, positioning spring, and positioning block, facilitates the installation and disassembly of the quantitative device. By pressing the positioning blocks on both sides of the mounting groove, the positioning blocks retract into the mounting hole and compress the positioning spring, thereby disconnecting the positioning block from the positioning hole and allowing the U-shaped plate to be removed, completing the disassembly of the quantitative device. Similarly, by pressing the positioning blocks on both sides of the U-shaped plate and connecting the bottom end of the U-shaped plate to the mounting groove, when the positioning block aligns with the positioning hole, the positioning block connects with the positioning hole under the action of the positioning spring, thus completing the installation of the quantitative device.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a three-dimensional structural diagram of a sampling device for medical testing according to the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the piston rod of a sampling device for medical testing according to the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the U-shaped plate of a medical testing sampling device according to the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the sampling tube of a medical testing sampling device according to the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the quantitative plate of a sampling device for medical testing according to the present invention;

[0024] Figure 6 This is a cross-sectional view of the U-shaped plate of a medical testing sampling device according to this utility model.

[0025] In the diagram: 1. Sampling tube; 2. Needle; 3. Mounting plate; 4. Piston; 5. Piston rod; 6. Pull-out plate; 7. Baffle; 8. Mounting groove; 9. Positioning hole; 10. U-shaped plate; 11. Slide groove; 12. Limiting rod; 13. Threaded hole; 14. Metering plate; 15. Slider; 16. Limiting hole; 17. Bearing; 18. Screw; 19. Knob; 20. Mounting hole; 21. Positioning spring; 22. Positioning block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6This utility model provides a technical solution: a sampling device for medical testing, comprising: a sampling tube 1, a needle 2 fixedly connected to the bottom of the sampling tube 1, mounting plates 3 fixedly connected to both sides of the top of the sampling tube 1, a piston rod 5 disposed inside the sampling tube 1, a piston 4 fixedly connected to the bottom end of the piston rod 5, and a pull plate 6 fixedly connected to the top end of the piston rod 5, to facilitate the sampling of samples.

[0028] The pull-out plate 6 is fixedly connected to baffles 7 on both sides. The top of the mounting plate 3 is fixedly connected to a mounting groove 8. Positioning holes 9 are provided on both sides of the mounting groove 8. A U-shaped plate 10 is movably connected inside the mounting groove 8. A sliding groove 11 is provided on the inner wall of the U-shaped plate 10. A limit rod 12 is fixedly connected to the inner wall of the sliding groove 11. A quantitative plate 14 is slidably connected to the outer wall of the limit rod 12. Slider 15 is fixedly connected to both sides of the quantitative plate 14. A screw 18 is movably connected to the top of the U-shaped plate 10. A knob 19 is fixedly connected to the top of the screw 18. Mounting holes 20 are provided on both sides of the U-shaped plate 10. A positioning spring 21 is fixedly connected inside the mounting hole 20. A positioning block 22 is fixedly connected to the other end of the positioning spring 21. The quantitative plate 14 can block the pull-out plate 6 from continuing to pull upward, thereby preventing the piston 4 from moving upward, which facilitates quantitative sampling of the sample. At the same time, the device facilitates the installation and disassembly of the U-shaped plate 10 by controlling the connection between the positioning block 22 and the positioning hole 9, thus facilitating the installation and disassembly of the quantitative device.

[0029] The shape and size of piston 4 match those of sampling tube 1, and piston 4 is slidably connected to the inner wall of sampling tube 1, facilitating sample collection. A limiting hole 16 is provided inside slider 15, and the shape and size of limiting hole 16 match those of limiting rod 12. Sliding slider 15 is slidably connected to limiting rod 12 via limiting hole 16. Limiting rod 12 can limit the metering plate 14, preventing it from shifting and making the height adjustment process of metering plate 14 more stable. A threaded hole 13 is provided at the top of U-shaped plate 10, with threads inside. The threaded hole 13 engages with screw 18 via threads, facilitating the height adjustment of screw 18, thereby facilitating the height adjustment of metering plate 14. A bearing 17 is fixedly connected to the top of metering plate 14, and the bottom end of screw 18... The U-shaped plate 10 is fixedly connected to the inner ring of the bearing 17, facilitating the rotation of the screw 18. The shape and size of the U-shaped plate 10 match the shape and size of the mounting groove 8, and the U-shaped plate 10 is movably connected to the mounting groove 8, facilitating the installation of the U-shaped plate 10, thereby facilitating the installation and disassembly of the metering device. The diameter of the mounting hole 20 is larger than the diameter of the positioning block 22, and the positioning block 22 is slidably connected to the inner wall of the mounting hole 20, facilitating the retraction of the positioning block 22 into the mounting hole 20, thereby facilitating the installation and disassembly of the U-shaped plate 10. The shape and size of the positioning block 22 match the shape and size of the positioning hole 9, and when the position of the positioning block 22 corresponds to the positioning hole 9, the positioning block 22 is movably connected to the positioning hole 9 under the elastic force of the positioning spring 21, facilitating the connection between the positioning block 22 and the positioning hole 9, thereby facilitating the installation of the U-shaped plate 10.

[0030] Working principle: When installing the quantitative device, press the positioning blocks 22 on both sides of the U-shaped plate 10 to retract them into the mounting holes 20 and compress the positioning springs 21. Insert both ends of the U-shaped plate 10 into the mounting grooves 8. When the position of the positioning blocks 22 corresponds to the positioning holes 9 on both sides of the mounting groove 8, the positioning blocks 22 connect with the positioning holes 9 under the elastic force of the positioning springs 21, thus completing the installation of the quantitative device. During sampling, determine the dose of the sample to be collected. By rotating the knob 19, the screw 18 is rotated, which in turn moves the quantitative plate 14 up and down, adjusting the quantitative plate 14 to the specified sample dose. To extract the sample, insert the needle 2 at the bottom of the sampling tube 1 into the sample, and pull the pull plate 6 upwards. The pull plate 6 drives the piston 4 upwards, thus allowing the sample to be extracted. Continue until the baffles 7 on both sides of the pull plate 6 are blocked by the quantitative plate 14, preventing the pull plate 6 from being pulled upwards. This completes the quantitative sampling of the sample. Similarly, when disassembling the quantitative device, press the positioning blocks 22 on both sides of the mounting groove 8 to retract them into the mounting hole 20 and compress the positioning spring 21 until the connection between the positioning blocks 22 and the positioning holes 9 on both sides of the mounting groove 8 is broken. Pull upwards to remove the U-shaped plate 10, thus completing the disassembly of the quantitative device.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sampling device for medical testing, comprising: The utility model provides a sampling tube (1), its characterized in be that the bottom fixed connection of sampling tube (1) has needle (2), the both sides fixed connection of sampling tube (1) top has mounting plate (3), the inside of sampling tube (1) is provided with piston rod (5), the bottom fixed connection of piston rod (5) has piston (4), the top fixed connection of piston rod (5) has pull -out plate (6), The both sides fixed connection of pull -out plate (6) has baffle (7), the top fixed connection of mounting plate (3) has installation groove (8), the both sides of installation groove (8) are equipped with positioning hole (9), the inside movable connection of installation groove (8) has U -shaped board (10), the inner wall of U -shaped board (10) is equipped with sliding slot (11), the outer wall fixed connection of sliding slot (11) has limit rod (12), the both sides fixed connection of limit rod (12) has slide block (15), the top movable connection of U -shaped board (10) has screw rod (18), the top fixed connection of screw rod (18) has knob (19), the both sides of U -shaped board (10) are equipped with mounting hole (20), the inside fixed connection of mounting hole (20) has positioning spring (21), the other end fixed connection of positioning spring (21) has locating block (22).

2. A sampling device for medical testing as defined in claim 1, characterized in that The shape size of piston (4) and sampling tube (1) are matched with each other, and the inner wall of piston (4) and sampling tube (1) is slidably connected.

3. The sampling device of claim 1, wherein: The inside of slide block (15) is equipped with limit hole (16), the shape size of limit hole (16) and limit rod (12) are matched with each other, and slide block (15) is slidably connected with limit rod (12) through limit hole (16).

4. The sampling device of claim 1, wherein: The top of U -shaped board (10) is equipped with threaded hole (13), the inside of threaded hole (13) is provided with thread, and threaded hole (13) is matched with screw rod (18) through thread.

5. The sampling device of claim 1, wherein: The top of limit rod (12) is fixedly connected with bearing (17), and the bottom of screw rod (18) is fixedly connected with the inner ring of bearing (17).

6. The sampling device of claim 1, wherein: The shape size of U -shaped board (10) and installation groove (8) are matched with each other, and U -shaped board (10) is movably connected with installation groove (8).

7. The sampling device of claim 1, wherein: The diameter of mounting hole (20) is greater than the diameter of locating block (22), and the inner wall of locating block (22) is slidably connected with mounting hole (20).

8. The sampling device of claim 1, wherein: The shape size of locating block (22) and positioning hole (9) are matched with each other, and when the position of locating block (22) corresponds to positioning hole (9), locating block (22) is movably connected with positioning hole (9) under the elasticity of positioning spring (21).

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