Pressure leak detection equipment for producing and processing peritoneal dialysis solution

Abstract

The utility model discloses a pressure leak detection device for producing and processing peritoneal dialysis solution, which relates to the technical field of peritoneal dialysis solution production and comprises a pressure detection box body, the pressure detection box body comprises a mounting box, the top of an inner cavity of the mounting box is provided with a peritoneal dialysis solution packaging bag hook, and the front surface of the mounting box is provided with a sealing door. After the packaging soft bag is hung on the hook, the air pump is used for pressurizing the interior of the sealed box body, then the first clamping plate and the second clamping plate abut against the two sides of the packaging bag, the pressure sensor is used for detecting the counter-acting force borne by the clamping plates, and when leakage holes exist in the packaging bag, peritoneal dialysis liquid is extruded out of the packaging bag through high pressure; when the packaging bag leaks, the packaging bag deforms, the size is reduced, the pressure detected by the pressure sensor changes accordingly, whether the packaging bag leaks or not can be accurately known according to the change of the pressure detected by the pressure sensor, and compared with conventional manual detection, the detection accuracy is higher, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of peritoneal dialysis fluid production technology, specifically to a pressure leak detection device for peritoneal dialysis fluid production and processing. Background Technology

[0002] Peritoneal dialysis fluid is an important medical fluid used in clinical treatment to remove metabolic waste and excess water from the body. Its packaging container is usually a soft bag. The airtightness of the packaging container directly affects the product quality and patient safety. Pressure leak detection equipment used in the production and processing of peritoneal dialysis fluid is required when testing the airtightness.

[0003] Currently, peritoneal dialysis fluid is usually packaged in soft bags. The traditional method of leak detection is mainly manual visual inspection, which involves visually observing whether there are any leak holes in the soft bag packaging. However, this method is difficult to detect when the leak hole is small, which is inconvenient. Therefore, a pressure leak detection device for peritoneal dialysis fluid production and processing is proposed. Utility Model Content

[0004] This invention provides a pressure leak detection device for peritoneal dialysis fluid production and processing to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A pressure leak detection device for peritoneal dialysis fluid production and processing includes a pressure detection chamber, which comprises an installation box with a peritoneal dialysis fluid packaging bag hook installed on the top of the inner cavity. The installation box has a sealed door on its front, and a light-transmitting observation window inside the sealed door. A pressure relief valve is installed inside the installation box. A pressurization mechanism includes an air pump with an inflation pipe at its output end, one end of which is connected to the top of the inner cavity of the installation box. A detection mechanism includes a first cylinder, one end of which is fixedly connected to one side of the inner cavity of the installation box, and a pressure sensor is fixedly connected to its output end.

[0007] A further improvement of this utility model is that the pressure detection box also includes an air inlet, which is located on the back of the mounting box.

[0008] A further improvement of this utility model is that a warning light is provided on the surface of the sealed door, and a display screen is provided below the warning light and on the surface of the sealed door.

[0009] A further improvement of this utility model is that the display screen is connected to the pressure sensor signal, and the warning light is connected to the pressure sensor signal.

[0010] A further improvement of this utility model is that the pressurizing mechanism further includes a pressure sensor, one side of which is fixedly connected to the inner wall of the mounting box, and the pressure sensor is signal-connected to the air pump.

[0011] A further improvement of the present invention is that the detection mechanism further includes a guide rod, and a first clamping plate is fixedly connected to the side of the pressure sensor away from the first cylinder.

[0012] A further improvement of this utility model is that: one end of the guide rod is fixedly connected to the inner wall of the mounting box, a slider is slidably connected to the surface of the guide rod, and a second clamping plate is fixedly connected to the top of the slider.

[0013] A further improvement of this utility model is that a second cylinder is fixedly connected to one side of the slider, and the other end of the second cylinder is fixedly connected to the inner wall of the mounting box.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides a pressure leak detection device for peritoneal dialysis fluid production and processing. After hanging a soft packaging bag on a hook, an air pump pressurizes the sealed chamber. Then, the first and second clamping plates abut against the sides of the packaging bag. A pressure sensor detects the reaction force on the clamping plates. When a leak is found in the packaging bag, the high pressure forces the peritoneal dialysis fluid out, causing the bag to deform and shrink. The pressure detected by the pressure sensor changes accordingly. Based on the pressure change detected by the pressure sensor, it is possible to accurately determine whether the packaging bag is leaking. Compared with conventional manual detection, this method is more accurate and easier to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a bottom view of the structure of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the present invention;

[0020] Figure 5 This is a side view of the present invention.

[0021] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 11. Mounting box; 12. Sealed door; 13. Light-transmitting observation window; 14. Air inlet; 15. Warning light; 16. Display screen; 21. Air pump; 22. Inflation pipe; 23. Air pressure sensor; 31. First cylinder; 32. Pressure sensor; 33. First clamping plate; 34. Guide rod; 35. Slider; 36. Second clamping plate; 37. Second cylinder. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] Example 1

[0025] like Figure 1-6 As shown, this utility model provides a pressure leak detection device for peritoneal dialysis fluid production and processing, including a pressure detection chamber, which includes an installation box 11 with a peritoneal dialysis fluid packaging bag hook at the top of the inner cavity, a sealing door 12 on the front of the installation box 11, a light-transmitting observation window 13 inside the sealing door 12, and a pressure relief valve inside the installation box 11; a pressurization mechanism, which includes an air pump 21, with an inflation pipe 22 at the output end of the air pump 21, one end of the inflation pipe 22 being connected to the top of the inner cavity of the installation box 11; and a detection mechanism, which includes a first cylinder 31, one end of the first cylinder 31 being fixedly connected to one side of the inner cavity of the installation box 11, and a pressure sensor 32 being fixedly connected to the output end of the first cylinder 31.

[0026] In this embodiment, during use, the operator first opens the sealing door 12 on the front of the mounting box 11 and suspends the peritoneal dialysis fluid packaging bag to be tested through the hook at the top of the inner cavity of the mounting box, ensuring that the packaging bag is vertical and stable. After closing the sealing door 12, the sealing door and the mounting box form a sealed testing chamber. At this time, the state inside the chamber can be observed in real time through the light-transmitting observation window 13 inside the sealing door, providing a stable sealed environment for subsequent testing. Then, the air pump 21 is started, and gas is injected into the top of the inner cavity of the mounting box 11 through the air inflation tube 22. The gas diffuses evenly throughout the entire cavity, causing the air pressure inside the cavity to gradually increase.

[0027] Example 2

[0028] like Figure 1-6As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the pressure detection chamber further includes an air inlet 14, which is located on the back of the mounting box 11. A warning light 15 is provided on the surface of the sealing door 12, and a display screen 16 is provided below the warning light 15 and on the surface of the sealing door 12. The display screen 16 is connected to the pressure sensor 32, and the warning light 15 is connected to the pressure sensor 32. The pressurization mechanism further includes a pressure sensor 23, one side of which is fixedly connected to the inner wall of the mounting box 11, and the pressure sensor 23 is connected to the air pump 21.

[0029] In this embodiment, the pressure sensor 23 installed on the inner wall of the chamber monitors the internal pressure in real time and feeds the data back to the control system of the air pump 21. When the pressure reaches the preset detection pressure value, the air pump automatically adjusts or stops inflation according to the sensor signal to ensure that the internal pressure of the chamber is stable at the high pressure required for detection, providing external pressure conditions for the sealing test. Subsequently, the first cylinder 31 drives the pressure sensor 32 and the connected first clamping plate 33 to move towards the packaging bag. At the same time, the second cylinder 37 drives the second clamping plate 36 to move synchronously from the opposite side along the guide rod 34 through the slider 35. The two sets of clamping plates cooperate to clamp the packaging bag. The sliding structure of the guide rod 34 and the slider 35 ensures the linearity and stability of the clamping plate movement.

[0030] Example 3

[0031] like Figure 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the detection mechanism further includes a guide rod 34, a first clamping plate 33 is fixedly connected to the side of the pressure sensor 32 away from the first cylinder 31, one end of the guide rod 34 is fixedly connected to the inner wall of the mounting box 11, a slider 35 is slidably connected to the surface of the guide rod 34, a second clamping plate 36 is fixedly connected to the top of the slider 35, a second cylinder 37 is fixedly connected to one side of the slider 35, and the other end of the second cylinder 37 is fixedly connected to the inner wall of the mounting box 11.

[0032] In this embodiment, pressure data is collected in real time by pressure sensor 32. If there is a leak in the packaging bag, the external high-pressure gas will seep into the bag through the leak or cause the liquid inside the bag to leak out, causing abnormal pressure fluctuations inside the bag. The pressure data collected by pressure sensor 32 is synchronously transmitted to the display screen 16 on the surface of the sealing door 12. The operator can intuitively view parameters such as pressure curve, real-time pressure value, and detection time, and keep track of the detection process in real time. When the pressure sensor detects that the pressure change exceeds the preset leakage threshold, the control system immediately triggers the warning light 15 on the surface of the sealing door to prompt the operator to remove the unqualified product. After the detection is completed, the air pump 21 stops working, and the high-pressure gas in the cavity is slowly released through the pressure relief valve of the mounting box. After the pressure returns to normal pressure, the sealing door 12 is opened, the tested packaging bag is taken out, and one detection cycle is completed.

[0033] The working principle of the pressure leak detection equipment used in the production and processing of peritoneal dialysis fluid will be explained in detail below.

[0034] like Figure 1-6 As shown, during use, the operator first opens the sealing door 12 on the front of the installation box 11 and hangs the peritoneal dialysis fluid packaging bag to be tested through the hook at the top of the inner cavity of the installation box, ensuring that the packaging bag is vertical and stable. After closing the sealing door 12, the sealing door and the installation box form a sealed testing chamber. At this time, the state inside the chamber can be observed in real time through the light-transmitting observation window 13 inside the sealing door, providing a stable sealed environment for subsequent testing. Then, the air pump 21 is started, and gas is injected into the top of the inner cavity of the installation box 11 through the air inflation tube 22. The gas diffuses evenly throughout the entire cavity, causing the air pressure inside the cavity to gradually increase. The air pressure sensor 23 on the inner wall of the installation box monitors the pressure inside the cavity in real time and feeds the data back to the control system of the air pump 21. When the air pressure reaches the preset detection pressure value, the air pump automatically adjusts or stops inflation based on the sensor signal to ensure that the internal pressure of the cavity remains stable at the high pressure required for detection, providing external pressure conditions for the sealing test. Subsequently, the first cylinder 31 drives the pressure sensor 32 and the connected first clamping plate 33 to move towards the packaging bag. At the same time, the second cylinder 37 drives the second clamping plate 36 to move synchronously from the opposite side along the guide rod 34 via the slider 35. The two sets of clamping plates cooperate to clamp the packaging bag. The sliding structure of the guide rod 34 and the slider 35 ensures the linearity and stability of the clamping plate movement. The pressure sensor 32 collects pressure data in real time. If there is a leak in the packaging bag, the external high-pressure gas will seep through the leak. If the contents of the bag are leaked, it may cause the liquid inside the bag to leak out, resulting in abnormal pressure fluctuations inside the bag. The pressure data collected by the pressure sensor 32 is synchronously transmitted to the display screen 16 on the surface of the sealing door 12. The operator can intuitively view parameters such as pressure curve, real-time pressure value, and detection time, and keep track of the detection process in real time. When the pressure sensor detects that the pressure change exceeds the preset leakage threshold, the control system immediately triggers the warning light 15 on the surface of the sealing door to prompt the operator to remove the unqualified product. After the detection is completed, the air pump 21 stops working, and the high-pressure gas in the cavity is slowly released through the pressure relief valve of the mounting box. After the pressure returns to normal pressure, the sealing door 12 is opened, the tested packaging bag is taken out, and one detection cycle is completed.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A pressure leak detection device for peritoneal dialysis fluid production and processing, characterized in that: include The pressure testing chamber includes an installation box (11) with a hook for peritoneal dialysis fluid packaging bag installed on the top of the inner cavity. A sealing door (12) is provided on the front of the installation box (11). A light-transmitting observation window (13) is provided inside the sealing door (12). A pressure relief valve is provided inside the installation box (11). The pressurization mechanism includes an air pump (21), the output end of which is provided with an inflation pipe (22), one end of which is connected to the top of the inner cavity of the mounting box (11); The testing mechanism includes a first cylinder (31), one end of which is fixedly connected to one side of the inner cavity of the mounting box (11), and a pressure sensor (32) is fixedly connected to the output end of the first cylinder (31).

2. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 1, characterized in that: The pressure detection box also includes an air inlet (14), which is located on the back of the mounting box (11).

3. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 2, characterized in that: A warning light (15) is provided on the surface of the sealed door (12), and a display screen (16) is provided below the warning light (15) and on the surface of the sealed door (12).

4. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 3, characterized in that: The display screen (16) is connected to the pressure sensor (32) via signal, and the warning light (15) is also connected to the pressure sensor (32) via signal.

5. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 1, characterized in that: The pressurization mechanism also includes a pressure sensor (23), one side of which is fixedly connected to the inner wall of the mounting box (11), and the pressure sensor (23) is signal-connected to the air pump (21).

6. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 1, characterized in that: The detection mechanism also includes a guide rod (34), and a first clamping plate (33) is fixedly connected to the side of the pressure sensor (32) away from the first cylinder (31).

7. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 6, characterized in that: One end of the guide rod (34) is fixedly connected to the inner wall of the mounting box (11), and a slider (35) is slidably connected to the surface of the guide rod (34). A second clamping plate (36) is fixedly connected to the top of the slider (35).

8. The pressure leak detection equipment for peritoneal dialysis fluid production and processing according to claim 7, characterized in that: A second cylinder (37) is fixedly connected to one side of the slider (35), and the other end of the second cylinder (37) is fixedly connected to the inner wall of the mounting box (11).

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