Leakage detection type blood collection tube cap device

Abstract

This utility model discloses a leak-proof detection blood collection tube cap device, including a box and a blood collection tube body. The blood collection tube body is inserted into the inside of the insertion tube. A small vacuum pump and a No. 1 negative pressure valve are respectively sealed and connected to the openings on the left and right sides of the box. An air inlet is opened at the top of the box. A No. 2 negative pressure valve is sealed and connected between the air inlet and the insertion port opened on the top surface. The insertion tube is inserted into the inside of the insertion port. This utility model, by setting a small box and a small vacuum pump, allows the insertion tube with the blood collection tube body to be inserted into the insertion port for sealing during testing. Then, the No. 2 negative pressure valve is opened, and the air pressure change in the box is observed. If the air pressure remains unchanged afterward, it indicates that the cap of the blood collection tube body is sealed properly. The testing is convenient, does not rely on fixed equipment, and is easy to conduct on-site testing and carry.

Description

Technical Field

[0001] This utility model relates to the field of blood collection tube detection technology, specifically a leak-proof detection type blood collection tube cap device. Background Technology

[0002] Blood collection tubes are essential containers for sample collection and transportation. Currently, most blood collection tube caps on the market use traditional sealing structures, such as screw-on or press-type caps. During the production process, some caps with minor sealing defects may enter the market, only to reveal leakage problems during use, affecting the smooth progress of medical testing procedures and the reliability of test results.

[0003] Existing devices for detecting airtightness are mostly fixed, large-scale equipment, lacking portability and making real-time detection at the sampling site difficult. Furthermore, it's impossible to pre-determine whether there are minor leaks in the blood collection tube caps, leading to leaks often being discovered only during the testing process. This not only affects the efficiency of the medical testing procedure but may also cause inaccurate test results due to sample contamination. Therefore, a new technical solution is proposed to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof detection blood collection tube cap device, which solves the problem mentioned in the background art that existing devices for detecting sealing are mostly fixed large equipment, which are not portable and difficult to detect in real time at the sampling site.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof detection blood collection tube cap device, comprising a box body and a blood collection tube body, wherein the blood collection tube body is inserted into the inside of the insertion tube, and a small vacuum pump and a first negative pressure valve are respectively sealed and connected to the openings on the left and right sides of the box body, and an air inlet is provided at the top of the box body, and a second negative pressure valve is sealed and connected between the air inlet and the insertion port opened on the top frame surface, wherein the insertion tube is inserted into the inside of the insertion port.

[0006] In this technical solution, by setting up a small box and a small vacuum pump, the cannula with the blood collection tube body is inserted into the insertion port for sealing during testing. Then, the second negative pressure valve is opened, and the air pressure change of the box is observed. If the air pressure remains unchanged afterward, it indicates that the cap of the blood collection tube body is sealed properly. The test is convenient, does not rely on fixed equipment, and is easy to conduct on-site testing and carry.

[0007] Preferably, the top frame is fixedly connected to the top of the box body, and an extrusion groove is provided inside the top frame. Two extrusion blocks are slidably connected to the inner side of the extrusion groove, and a sealing ring is fixed to the inner wall of the extrusion groove between the two extrusion blocks.

[0008] Preferably, the extrusion groove is connected to the insertion port, and the left and right outer wall surfaces of the top frame corresponding to the horizontal height of the extrusion groove are threaded with screws. One end of the screw passes through the outer surface of the top frame and is threadedly connected to the extrusion block through a bearing.

[0009] Preferably, two arc-shaped threaded plates are fixedly connected to the top surface of the top frame at the opening above the socket, and the outer surface of the arc-shaped threaded plates is threaded with a threaded sleeve.

[0010] Preferably, the diameter of the insertion tube is the same as the diameter of the insertion port, and a rubber ring is fixedly connected to the center of the outer surface of the insertion tube.

[0011] Preferably, a pressure gauge is fixedly connected to the top surface of the box, the bottom end of the pressure gauge is located inside the box, and a battery pack is fixedly connected to the outer wall of the box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a small box and a small vacuum pump. During testing, the cannula with the blood collection tube body is inserted into the insertion port for sealing. Then, the second negative pressure valve is opened, and the air pressure change in the box is observed. If the air pressure remains unchanged afterward, it indicates that the cap of the blood collection tube body is sealed properly. The testing is convenient, does not rely on fixed equipment, and is easy to conduct on-site testing and carry.

[0014] 2. This utility model features an insertion tube on the outside of the blood collection tube body. Through a design that allows for double insertion testing (both forward and reverse), coupled with a linked compression structure of the sealing ring and compression block, the sealing performance at the connection between the blood collection tube cap and the insertion tube can be verified simultaneously. When an abnormally slow change in internal air pressure occurs, the location of the sealing defect can be accurately pinpointed. This dual verification mechanism ensures the accuracy and reliability of the test results. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the extrusion groove structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cannulation structure of this utility model.

[0020] In the diagram: 1. Box body; 101. Battery pack; 102. Air inlet; 2. Small vacuum pump; 3. No. 1 negative pressure valve; 4. Top frame; 5. No. 2 negative pressure valve; 6. Insert; 7. Arc-shaped threaded plate; 701. Threaded sleeve; 8. Extrusion groove; 9. Extrusion block; 10. Screw; 11. Sealing ring; 12. Insert tube; 121. Rubber ring; 13. Blood collection tube body; 14. Pressure gauge. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0022] A leak-proof detection blood collection tube cap device, see [link / reference] Figures 1 to 4 The system includes a box body 1 and a blood collection tube body 13. The blood collection tube body 13 is inserted into the inside of the insertion tube 12. An air inlet 102 is provided at the top of the box body 1. A second negative pressure valve 5 is sealed between the air inlet 102 and the insertion port 6 on the surface of the top frame 4. The insertion tube 12 is inserted into the inside of the insertion port 6. The diameter of the insertion tube 12 is the same as the diameter of the insertion port 6. In actual use, the blood collection tube body 13 is first inserted into the insertion tube 12, and then inserted into the insertion port 6. At this time, the second negative pressure valve 5 is opened. Since the inside of the box body 1 is a vacuum, if the seal of the blood collection tube cover is insufficient, the air in the blood collection tube body 13 will leak out, and the air pressure inside the box body 1 will slowly rise, thereby detecting the current seal of the blood collection tube body 13.

[0023] Specifically, such as Figure 1 As shown, a small vacuum pump 2 and a negative pressure valve 3 are respectively sealed and connected to the openings on the left and right sides of the box body 1. A pressure gauge 14 is fixedly connected to the top surface of the box body 1, and the bottom end of the pressure gauge 14 is located inside the box body 1. Before testing, the small vacuum pump 2 is started to extract the air from the inside of the box body 1. During the extraction process, the air pressure inside the box body 1 can be obtained through the pressure gauge 14. If the pointer of the pressure gauge 14 moves slowly during subsequent testing, it indicates that the sealing is insufficient. A battery pack 101 is fixedly connected to the outer wall of the box body 1 to power the small vacuum pump 2, which is convenient for use in places without external power.

[0024] Furthermore, such as Figure 2 and Figure 3As shown, the top frame 4 is fixedly connected to the top of the box 1. An extrusion groove 8 is provided inside the top frame 4. Two extrusion blocks 9 are slidably connected laterally to the inner side of the extrusion groove 8. A sealing ring 11 is fixed to the inner wall of the extrusion groove 8 between the two extrusion blocks 9. The extrusion groove 8 communicates with the insertion port 6. Screws 10 are threadedly connected to the left and right outer wall surfaces of the top frame 4 corresponding to the horizontal height of the extrusion groove 8. One end of the screw 10 passes through the outer surface of the top frame 4 and is threadedly connected to the extrusion block 9 through a bearing. After the insertion tube 12 is inserted, the sealing ring 11 will tightly adhere to its outer surface. To ensure a sealing effect, the screws 10 on both sides can be rotated. During rotation, the screws 10... The screws 0 will gradually push the squeezing block 9 towards the sealing ring 11, thereby applying pressure to the sealing ring 11, making the sealing ring 11 fit more tightly against the surface of the insertion tube 12, improving the sealing effect and making the test results more accurate. After the insertion tube 12 is inserted, the sealing ring 11 will be tightly attached to its outer surface. In order to ensure the sealing effect, the screws 10 on both sides can be rotated. During the rotation, the screws 10 will gradually push the squeezing block 9 towards the sealing ring 11, thereby applying pressure to the sealing ring 11, making the sealing ring 11 fit more tightly against the surface of the insertion tube 12, improving the sealing effect and making the test results more accurate.

[0025] It is worth noting that, such as Figure 1 and Figure 3 As shown, two arc-shaped threaded plates 7 are fixedly connected to the top surface of the top frame 4 at the opening above the insertion port 6. A threaded sleeve 701 is threadedly connected to the outer surface of the arc-shaped threaded plate 7. A rubber ring 121 is fixedly connected to the center of the outer surface of the insertion tube 12. After the insertion tube 12 is inserted, the threaded sleeve 701 can be rotated to gradually rise. The two arc-shaped threaded plates 7 are slightly tilted to both sides. During the rising process of the threaded sleeve 701, the two arc-shaped threaded plates 7 will move closer together, so that the rubber ring 121 on the outside of the insertion tube 12 will fix the insertion tube 12, thereby improving the stability of the insertion tube 12.

[0026] It should be noted that the insertion tube 12 is set on the outside of the blood collection tube body 13, mainly to facilitate the testing of the sealing effect at the sealing ring 11. Before testing, the insertion tube 12 can be inserted backwards. If the reading of the pressure gauge 14 still changes at this time, it indicates that there is a problem with the sealing effect at the sealing ring 11, and timely adjustment and maintenance are required. At the same time, during the testing process, when the second negative pressure valve 5 is opened, a small amount of residual air in the insertion port 6 will enter the box 1. At this time, the reading on the pressure gauge 14 will change slightly, which is normal. If the reading does not change afterward, it indicates that the sealing effect of the cover of the blood collection tube body 13 is normal.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A leak-proof detection type blood collection tube cap device, comprising a box body (1) and a blood collection tube body (13), characterized in that: The main body (13) of the blood collection tube is inserted into the inside of the insertion tube (12). A small vacuum pump (2) and a negative pressure valve (3) are respectively sealed and connected to the openings on the left and right sides of the box (1). An air inlet (102) is opened at the top of the box (1). A negative pressure valve (5) is sealed and connected between the air inlet (102) and the insertion port (6) opened on the surface of the top frame (4). The insertion tube (12) is inserted into the inside of the insertion port (6).

2. The leak-proof detection blood collection tube cap device according to claim 1, characterized in that: The top frame (4) is fixedly connected to the top of the box body (1). The top frame (4) has an extrusion groove (8) inside. Two extrusion blocks (9) are slidably connected to the inner side of the extrusion groove (8). A sealing ring (11) is fixed to the inner wall of the extrusion groove (8) between the two extrusion blocks (9).

3. The leak-proof detection blood collection tube cap device according to claim 2, characterized in that: The extrusion groove (8) is connected to the socket (6). The left and right outer wall surfaces of the top frame (4) corresponding to the horizontal height of the extrusion groove (8) are threaded with screws (10). One end of the screw (10) passes through the outer surface of the top frame (4) and is threaded to the extrusion block (9) through a bearing.

4. The leak-proof detection blood collection tube cap device according to claim 1, characterized in that: Two arc-shaped threaded plates (7) are fixedly connected to the top surface of the top frame (4) at the opening above the socket (6), and a threaded sleeve (701) is threadedly connected to the outer surface of the arc-shaped threaded plate (7).

5. The leak-proof detection blood collection tube cap device according to claim 1, characterized in that: The diameter of the insertion tube (12) is the same as the diameter of the insertion port (6), and a rubber ring (121) is fixedly connected to the center of the outer surface of the insertion tube (12).

6. The leak-proof detection blood collection tube cap device according to claim 1, characterized in that: A pressure gauge (14) is fixedly connected to the top surface of the box (1), the bottom end of the pressure gauge (14) is located inside the box (1), and a battery pack (101) is fixedly connected to the outer wall of the box (1).

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