Airtightness detection device for medical bag

By using an adjustable bearing plate layout and automated control, the problem of mutual compression of bags in multi-station testing equipment is solved, enabling efficient and accurate airtightness testing of medical bags.

CN224586428UActive Publication Date: 2026-08-04AMSINO MEDICAL KUNSHAN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AMSINO MEDICAL KUNSHAN
Filing Date
2025-08-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The fixed position of the support plate in existing multi-station testing equipment causes medical bags of different sizes to squeeze each other during the testing process, resulting in deformation, damage and deviation of test results, affecting the accuracy and efficiency of testing.

Method used

The bag features an adjustable support plate layout, multiple support and inflation components, a drive motor, rubber frame, and sealing rings, enabling automated control and flexible adjustment of the support plate spacing to ensure precise bag alignment and sealing.

Benefits of technology

It effectively avoids mutual compression of bags during the testing process, improves testing accuracy and efficiency, adapts to the testing needs of bags of different specifications, and reduces physical damage and test result deviation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to airtightness detection device of medical bag body, and relates to the technical field of airtightness detection, which comprises a detection main body, multiple groups of bearing assemblies and multiple groups of inflation assemblies, the multiple groups of bearing assemblies are arranged at the top of the detection main body, the multiple groups of inflation assemblies are arranged on one side of the detection main body, and the multiple groups of inflation assemblies are arranged on one side of the multiple groups of bearing assemblies. By arranging the multiple groups of bearing assemblies at the top of the detection main body and arranging the multiple groups of inflation assemblies on one side of each bearing assembly, the airtightness of multiple medical bag bodies can be detected at the same time, the batch detection demand can be effectively met, the detection efficiency is greatly improved, the problem that the traditional single-bag detection is time-consuming is avoided, meanwhile, the display panel on the surface of the detection main body can display the detection parameters, the process and the result in real time, the operation personnel can intuitively master the detection state, and the rubber material frame at the top of the bearing plate can position the medical bag body placed on the bearing plate.
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Description

Technical Field

[0001] This application relates to air tightness testing, and more particularly to an air tightness testing device for a medical bag. Background Technology

[0002] Medical bags, as crucial carriers for storing medications, blood, or drainage fluids in the medical field, are directly related to medical safety and patient health due to their airtightness. Leakage defects in the bags can lead to medication contamination, blood deterioration, and affect clinical treatment outcomes, and may even cause serious clinical accidents such as infections. Therefore, rigorous airtightness testing of medical bags before they leave the factory is an indispensable and critical step in the medical supplies production process. With the continuous growth in demand for medical bags in the medical industry, the need for batch testing is becoming increasingly prominent. How to further improve testing efficiency and adapt to different bag specifications while ensuring medical-grade testing accuracy and compliance has become a core area for optimization within the industry.

[0003] Currently, some existing airtightness testing equipment has attempted to meet batch testing needs through multi-station design to alleviate the problem of low efficiency in traditional manual water immersion leak detection. However, the multi-station bearing structure of such equipment generally has the defect of fixed layout. The position of the bearing plate corresponding to each station cannot be flexibly adjusted according to the size difference of the medical bag. When testing bags of different specifications, the fixed spacing of the bearing plate can easily cause adjacent bags to squeeze each other during the testing process. This may not only cause bag deformation and damage the sealing environment during testing, thus leading to deviation in test results, but may also cause physical damage to the bag, increasing production losses and costs.

[0004] To address the problem of fixed bearing plate positions in existing multi-station testing equipment, which easily leads to the compression of bags, this application proposes an airtightness testing device for medical bags. This device, through an adjustable bearing plate layout, allows operators to flexibly adjust the spacing between the bearing plates according to the actual size of the bag to be tested. This fundamentally avoids deformation, damage, and testing deviations caused by mutual compression between bags, while simultaneously balancing testing efficiency and accuracy, better adapting to the diverse testing needs in medical supply production. Utility Model Content The purpose of this application is to provide an airtightness testing device for medical bags, which has the advantages of easy adjustment and solves the problem that fixed spacing of the bearing plates can easily cause adjacent bags to squeeze each other during the testing process.

[0005] The airtightness testing device for a medical bag provided in this application adopts the following technical solution: it includes a testing body, multiple sets of supporting components and multiple sets of inflation components. The multiple sets of supporting components are arranged on the top of the testing body, and the multiple sets of inflation components are all arranged on one side of the testing body. The multiple sets of inflation components are respectively arranged on one side of the multiple sets of supporting components. A display panel is provided on the surface of the testing body.

[0006] By adopting the above technical solution, and by setting multiple sets of bearing components on the top of the testing body and setting multiple sets of inflation components on one side of each bearing component, multiple medical bags can be tested for air tightness at the same time, effectively meeting the needs of batch testing, greatly improving testing efficiency, and avoiding the problem of long testing time for traditional single bags. At the same time, the display panel on the surface of the testing body can display the testing parameters, process and results in real time, making it easy for operators to intuitively grasp the testing status.

[0007] Preferably, the supporting component includes a supporting plate, and the top of the supporting plate is provided with a frame, which is made of rubber.

[0008] By adopting the above technical solution, the rubber frame on the top of the support plate can position the medical bag placed on the support plate, prevent the bag from shifting during the testing process, and ensure that the bag is accurately connected to the inflation component.

[0009] Preferably, the inflation assembly includes a conduit, which is disposed on one side of the detection body. A solenoid valve is disposed on the surface of the conduit, and a sealing ring is disposed at the other end of the conduit. The sealing ring is made of rubber.

[0010] By adopting the above technical solution, the solenoid valve on the surface of the catheter can accurately control the opening and closing of the gas path according to the testing requirements, realize the automated control of the inflation process, and the rubber sealing ring at the end of the catheter can tightly fit the port of the medical bag, enhance the sealing of the connection between the two, prevent gas from leaking from the connection gap during the testing process, and prevent the deviation of the test results due to insufficient gas path sealing.

[0011] Preferably, the top of the detection body is provided with two sets of grooves, and the inner wall of each set of grooves is provided with a bidirectional lead screw. The surface of the bidirectional lead screw is threaded with two sets of threaded blocks. The top of each set of threaded blocks is provided on the top of the multiple sets of bearing plates. A drive motor is provided on one side of the detection body, and the other end of the output shaft of the drive motor is fixedly connected to the shaft end of the bidirectional lead screw through a rotating shaft.

[0012] By adopting the above technical solution, the bidirectional lead screw and threaded block in the groove at the top of the detection body can move synchronously in opposite or the same direction under the drive of the drive motor, thereby driving the top support plate to adjust its position. The spacing between each support plate can be flexibly adjusted according to the size difference of the medical bag to be tested.

[0013] Preferably, a sliding groove is provided on both sides of the inner wall of the groove, and a slider is slidably connected in the sliding groove, and the slider is fixedly connected to one side of the threaded block.

[0014] By adopting the above technical solution, the sliding engagement between the inner wall groove of the groove and the slider on one side of the threaded block can provide guidance for the movement of the threaded block, prevent the threaded block from rotating synchronously with the screw during the bidirectional screw rotation, and ensure that the threaded block moves smoothly only along the screw axis.

[0015] Preferably, the bottom of the detection body is provided with casters near the four corners, and brake pads are provided inside the casters.

[0016] By adopting the above technical solution, the brake pads built into the caster wheel can lock the wheel body after the equipment moves to the target position, preventing the equipment from sliding due to external forces during the testing process and ensuring the stability of the equipment when it is stationary.

[0017] Preferably, a handle is provided on one side of the detection body, and the surface of the handle is provided with an anti-slip sleeve.

[0018] By adopting the above technical solution, the anti-slip sleeve on the surface of the handle can increase the friction between the hand and the handle, and can effectively prevent slipping even if the hand is sweaty or has a small amount of dirt on it.

[0019] Preferably, the surface of the detection body is provided with a placement groove, and two sets of collection boxes are slidably connected in the placement groove.

[0020] By adopting the above technical solution, the placement groove on the surface of the test body, together with the sliding connection of the collection box, can be used to classify and store the tools required in the testing process, and temporarily store the qualified and unqualified bags after the test is completed, so as to realize the orderly storage of items and avoid the clutter of the work area caused by the random placement of tools or bags.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This airtightness testing device for medical bags uses a rubber frame on the top of the support plate to position the medical bag placed on the support plate, preventing displacement during testing and ensuring precise alignment between the bag and the inflation component. A solenoid valve on the catheter surface precisely controls the airflow according to testing requirements, automating the inflation process. A rubber sealing ring at the catheter end tightly fits the port of the medical bag, enhancing the seal and preventing gas leakage from gaps during testing, thus preventing deviations in test results due to insufficient airflow sealing. A bidirectional lead screw in the groove at the top of the testing body, working with a threaded block, can move synchronously in opposite or the same direction under the drive of a motor, thereby adjusting the position of the top support plate. This allows for flexible adjustment of the spacing between the support plates according to the size differences of the medical bags being tested. The sliding groove on the inner wall of the groove and the sliding block on one side of the threaded block provide guidance for the movement of the threaded block. Attached Figure Description

[0022] Figure 1 This is a frontal three-dimensional structural diagram of this application; Figure 2 This is a schematic diagram of the main structure of the detection unit in this application; Figure 3 For this Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the structure of the load-bearing component in this application; Figure 5 This is a schematic diagram of the structure of the inflatable component in this application.

[0023] In the diagram: 1. Detection body; 101. Groove; 102. Slide groove; 103. Slider; 104. Two-way lead screw; 105. Threaded block; 106. Drive motor; 2. Bearing assembly; 201. Bearing plate; 202. Frame; 3. Placement slot; 4. Collection box; 5. Display panel; 6. Inflation assembly; 601. Conduit; 602. Solenoid valve; 603. Sealing ring; 7. Handle; 8. Anti-slip sleeve; 9. Caster wheel; 10. Brake pad. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: An airtightness testing device for a medical bag, referring to... Figure 1 The system includes a testing body 1, multiple sets of support components 2, and multiple sets of inflation components 6. The support components 2 are located on the top of the testing body 1, and the inflation components 6 are located on one side of the testing body 1. The inflation components 6 are also located on one side of each support component 2. A display panel 5 is provided on the surface of the testing body 1. By placing the support components 2 on the top of the testing body 1 and correspondingly placing the inflation components 6 on one side of each support component 2, the airtightness of multiple medical bags can be tested simultaneously, effectively meeting the needs of batch testing, significantly improving testing efficiency, and avoiding the time-consuming problem of traditional single-bag testing. At the same time, the display panel 5 on the surface of the testing body 1 can display the testing parameters, process, and results in real time, allowing operators to intuitively grasp the testing status. Example 2: An airtightness testing device for a medical bag, referring to... Figure 3 and Figure 4 , Figure 5The supporting component 2 includes a supporting plate 201, with a frame 202 made of rubber on its top. The rubber frame 202 positions the medical bag placed on the supporting plate 201, preventing displacement during testing and ensuring precise alignment between the bag and the inflation component 6. The inflation component 6 includes a conduit 601, positioned on one side of the testing body 1. A solenoid valve 602 is mounted on the surface of the conduit 601, and a sealing ring 603 made of rubber is mounted at the other end. The solenoid valve 602 on the surface of the conduit 601 precisely controls the airflow according to testing requirements, automating the inflation process. The rubber sealing ring 603 at the end of the conduit 601 tightly fits the port of the medical bag, enhancing the seal and preventing misalignment during testing. During the process, gas leaks from the connection gap to prevent deviations in the test results due to insufficient gas path sealing. The top of the detection body 1 has two sets of grooves 101, and the inner walls of the two sets of grooves 101 are provided with bidirectional lead screws 104. The surface of the bidirectional lead screws 104 is threaded with two sets of threaded blocks 105. Multiple sets of bearing plates 201 are respectively set on the top of multiple sets of threaded blocks 105. A drive motor 106 is provided on one side of the detection body 1. The other end of the output shaft of the drive motor 106 is fixedly connected to the shaft end of the bidirectional lead screws 104 through a rotating shaft. The bidirectional lead screws 104 in the grooves 101 at the top of the detection body 1 cooperate with the threaded blocks 105. Under the drive of the drive motor 106, the threaded blocks 105 can move synchronously in opposite directions or in the same direction, thereby driving the top bearing plates 201 to adjust their positions. The spacing between each bearing plate 201 can be flexibly adjusted according to the size difference of the medical bag to be tested.

[0026] Example 3: An airtightness testing device for a medical bag, referring to... Figure 1 and Figure 3Both sides of the inner wall of the groove 101 are provided with sliding grooves 102, and sliders 103 are slidably connected in the sliding grooves 102. The sliders 103 are fixedly connected to one side of the threaded block 105. The sliding engagement between the sliding grooves 102 on the inner wall of the groove 101 and the sliders 103 on one side of the threaded block 105 can provide guidance for the movement of the threaded block 105, preventing the threaded block 105 from rotating synchronously with the lead screw 104 during rotation, and ensuring that the threaded block 105 moves smoothly only along the axial direction of the lead screw. Universal wheels 9 are provided near the four corners of the bottom of the detection body 1. Brake pads 10 are provided inside the universal wheels 9. The brake pads 10 inside the universal wheels 9 can lock the wheels after the equipment moves to the target position to prevent over-detection. During the process, the equipment may slide due to external forces. To ensure the stability of the equipment when it is stationary, a handle 7 is provided on one side of the testing body 1. The surface of the handle 7 is provided with an anti-slip sleeve 8. The anti-slip sleeve 8 on the surface of the handle 7 can increase the friction between the hand and the handle 7. Even if the hand is sweaty or has a small amount of dirt, it can effectively prevent slipping. A placement groove 3 is opened on the surface of the testing body 1. Two sets of collection boxes 4 are slidably connected in the placement groove 3. The placement groove 3 on the surface of the testing body 1, together with the slidably connected collection boxes 4, can be used to classify and store the tools required during the testing process, and temporarily store the qualified and unqualified bags after the testing is completed, so as to realize the orderly storage of items and avoid the clutter of the work area caused by random placement of tools or bags.

[0027] The implementation principle of this application embodiment is as follows: When using the airtightness testing device for medical bags, firstly, according to the requirements of the testing site, hold the handle 7 with anti-slip sleeve 8 on one side of the testing body 1, and push the device to a suitable working area with the help of the universal wheels 9 at the bottom. After the device is in place, step on the brake pad 10 in the universal wheels 9. According to the size and specifications of the medical bag to be tested, start the drive motor 106 on one side of the testing body 1. The output shaft of the drive motor 106 drives the bidirectional lead screw 104 in the groove 101 to rotate through the rotating shaft. The threaded block 105, which is threadedly connected to the bidirectional lead screw 104, moves synchronously in the opposite or same direction along the axis of the lead screw under the guidance of the slide groove 102 and the slider 103, thereby driving the top support plate 201 to adjust its position until the spacing between each support plate 201 is adapted to the size of the bag, so as to avoid the bags squeezing each other during subsequent testing. After adjustment After completion, the drive motor 106 is turned off, and the medical bags to be tested are placed on the respective support plates 201. The rubber frame 202 on the top of the support plate 201 can position the bags and prevent them from shifting. Then, the end of the conduit 601 of each inflation assembly 6 is connected to the port of the corresponding bag. The rubber sealing ring 603 at the end of the conduit 601 is tightly fitted to the port of the bag to ensure the sealing of the connection and avoid gas leakage from affecting the test results. The test parameters are set through the display panel 5 on the surface of the test body 1. The solenoid valve 602 on the surface of the conduit 601 precisely controls the opening and closing of the gas path according to the control system command, and inflates the bag with the set pressure of gas. After the test is completed, according to the test results on the display panel 5, the qualified and unqualified medical bags are placed into the two sets of collection boxes 4 in the placement groove 3 on the surface of the test body 1 to achieve classified storage.

Claims

1. An airtightness testing device for a medical bag, comprising a testing body (1), multiple sets of bearing components (2) and multiple sets of inflation components (6), characterized in that: Multiple sets of bearing components (2) are arranged on the top of the detection body (1), multiple sets of inflatable components (6) are arranged on one side of the detection body (1), multiple sets of inflatable components (6) are respectively arranged on one side of multiple sets of bearing components (2), and a display panel (5) is provided on the surface of the detection body (1).

2. The airtightness detection device for a medical bag according to claim 1, characterized in that: The support component (2) includes a support plate (201), and a frame (202) is provided on the top of the support plate (201), and the frame (202) is made of rubber.

3. The airtightness detection device for a medical bag according to claim 2, characterized in that: The inflation assembly (6) includes a conduit (601), which is disposed on one side of the detection body (1). A solenoid valve (602) is disposed on the surface of the conduit (601), and a sealing ring (603) is disposed at the other end of the conduit (601). The sealing ring (603) is made of rubber.

4. The airtightness detection device for a medical bag according to claim 3, characterized in that: The top of the detection body (1) is provided with two sets of grooves (101), and the inner walls of the two sets of grooves (101) are provided with bidirectional lead screws (104). The surface of the bidirectional lead screws (104) is threaded with two sets of threaded blocks (105). The tops of the multiple sets of threaded blocks (105) are respectively provided on the multiple sets of bearing plates (201). A drive motor (106) is provided on one side of the detection body (1), and the other end of the output shaft of the drive motor (106) is fixedly connected to the shaft end of the bidirectional lead screws (104) through a rotating shaft.

5. The airtightness detection device for a medical bag according to claim 4, characterized in that: The inner wall of the groove (101) is provided with sliding grooves (102) on both sides, and a slider (103) is slidably connected in the sliding groove (102). The slider (103) is fixedly connected to one side of the threaded block (105).

6. The airtightness detection device for a medical bag according to claim 5, characterized in that: The bottom of the detection body (1) is provided with casters (9) near the four corners, and brake pads (10) are provided inside the casters (9).

7. The airtightness detection device for a medical bag according to claim 6, characterized in that: A handle (7) is provided on one side of the detection body (1), and an anti-slip sleeve (8) is provided on the surface of the handle (7).

8. The airtightness detection device for a medical bag according to claim 7, characterized in that: The surface of the detection body (1) is provided with a placement groove (3), and two sets of collection boxes (4) are slidably connected in the placement groove (3).