Surgical pack tightness negative pressure detection device

Abstract

The utility model discloses a surgical dressing bag sealing negative pressure detection device, including the box, the top of box is provided with the import and export, the inner wall threaded connection of import and export has the sealing cover, the left side intercommunication of box has the air extraction pipe, installs the check valve and vacuum pump on the air extraction pipe, the right side intercommunication of box has the air inlet pipe, installs the flow valve on the air inlet pipe, the right end intercommunication of air inlet pipe has the sterilization box, the inner wall fixed connection of sterilization box has ultraviolet lamp, the back intercommunication of sterilization box has the cross pipe, the back of box installs hepa filter. The utility model, after completing to surgical dressing bag sealing negative pressure detection, when supplementing the air in the box, can filter and sterilization treatment to the air that enters the box inside, and then effectively avoid the dust and bacteria in the air to cause the pollution situation of surgical dressing or the box inside, and then improve the practicality of device.

Description

Technical Field

[0001] This utility model relates to the technical field of negative pressure detection devices, and more specifically, to a negative pressure detection device for the sealing of surgical packs. Background Technology

[0002] The surgical pack sealing negative pressure testing device is a specialized device used to test the sealing integrity of medical sterilization packaging (such as surgical instrument packs, dressing packs, etc.). In the routine surgical pack sealing negative pressure testing procedure, the surgical pack is typically placed inside the sealing cavity, and the air inside the cavity is extracted to maintain a negative pressure state. The pressure value displayed by the air pressure sensor inside the cavity is then observed.

[0003] If the surgical pack is well-sealed, the pressure value will remain stable; if the seal is defective, air inside the surgical pack will be forced out, causing pressure fluctuations, thus completing the negative pressure test for sealing. After the test, the sealed cavity in a negative pressure state needs to be replenished with air to restore the air pressure. During this process, dust and bacteria in the air can easily enter the sealed cavity, thereby contaminating the surgical pack and the air quality inside the cavity. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a surgical pack sealing negative pressure detection device, which can effectively prevent dust and bacteria in the air from contaminating the inside of the surgical pack or box.

[0005] To address the technical problems mentioned above, this utility model adopts the following technical solution;

[0006] A surgical pack sealing negative pressure detection device includes a box body. The top of the box body has an inlet and outlet, the inner walls of which are threaded with sealing caps. A suction pipe is connected to the left side of the box body, and a one-way valve and a vacuum pump are installed on the suction pipe. An inlet pipe is connected to the right side of the box body, and a flow valve is installed on the inlet pipe. The right end of the inlet pipe is connected to a sterilization chamber. An ultraviolet lamp is fixedly connected to the inner wall of the sterilization chamber. A horizontal pipe is connected to the back of the sterilization chamber. A HEPA filter is installed on the back of the box body, and the outlet of the HEPA filter is connected to the left end of the horizontal pipe. A pressure sensor is installed on the inner wall of the box body. A microcontroller is installed on the top of the box body, and the input terminal of the microcontroller is connected to the pressure sensor signal.

[0007] As a further description of the above technical solution:

[0008] An observation window is provided on the front of the box, and a transparent plate is fixedly connected to the inner wall of the observation window.

[0009] As a further description of the above technical solution:

[0010] The ultraviolet lamp is fitted with partitions arranged at equal intervals, and the partitions are fixed to the inner wall of the sterilization chamber in an alternating manner.

[0011] As a further description of the above technical solution:

[0012] A sealing ring is fixedly connected to the inner wall of the inlet and outlet, and the surface of the sealing ring is in contact with the sealing cover.

[0013] As a further description of the above technical solution:

[0014] A cylindrical body is fixedly connected to the top of the sealing cap, and a ring of handles is fixedly connected to the cylindrical body.

[0015] As a further description of the above technical solution:

[0016] The air inlet of the HEPA filter is connected to a return pipe, and the left end of the return pipe is connected to an extraction pipe, on which a solenoid valve is installed.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] After completing the negative pressure test for the sealing of the surgical pack, this solution can filter and sterilize the air entering the box when replenishing the air inside the box, thereby effectively preventing dust and bacteria in the air from contaminating the surgical pack or the inside of the box, thus improving the practicality of the device. Attached Figure Description

[0019] Figure 1 One of the perspective views of this utility model;

[0020] Figure 2 This is a second perspective view of the present utility model;

[0021] Figure 3 This is a third perspective view of the present utility model;

[0022] Figure 4 This is a cross-sectional view of the present invention.

[0023] Explanation of the labels in the diagram:

[0024] 1. Chamber; 2. Inlet / outlet; 3. Sealing cover; 4. Evacuation pipe; 5. One-way valve; 6. Vacuum pump; 7. Inlet pipe; 8. Flow valve; 9. Sterilization chamber; 10. Ultraviolet lamp; 11. Horizontal pipe; 12. HEPA filter; 13. Pressure sensor; 14. Observation window; 15. Transparent plate; 16. Partition; 17. Sealing ring; 18. Cylinder; 19. Handle; 20. Return pipe; 21. Solenoid valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0026] Please see Figures 1-4 In this utility model: the surgical pack sealing negative pressure detection device includes a box body 1, an inlet and outlet 2 on the top of the box body 1, a sealing cover 3 threadedly connected to the inner wall of the inlet and outlet 2, an air extraction pipe 4 connected to the left side of the box body 1, a one-way valve 5 and a vacuum pump 6 installed on the air extraction pipe 4, an air inlet pipe 7 connected to the right side of the box body 1, a flow valve 8 installed on the air inlet pipe 7, a sterilization chamber 9 connected to the right end of the air inlet pipe 7, an ultraviolet lamp 10 fixedly connected to the inner wall of the sterilization chamber 9, a horizontal pipe 11 connected to the back of the sterilization chamber 9, a HEPA filter 12 installed on the back of the box body 1, the air outlet of the HEPA filter 12 connected to the left end of the horizontal pipe 11, a pressure sensor 13 installed on the inner wall of the box body 1, a microcontroller installed on the top of the box body 1, and the input end of the microcontroller connected to the pressure sensor 13.

[0027] In this invention, when testing the surgical pack, the testing personnel first put on sterile gloves, rotate the sealing cap 3 to remove it from the inlet / outlet 2, then place the surgical pack to be tested into the box 1, and then screw the sealing cap 3 back onto the inlet / outlet 2. At this time, the box 1 is sealed and used as a sealed cavity. Then, the vacuum pump 6 is turned on, and the vacuum pump 6 will draw air from inside the box 1 through the air extraction pipe 4. At the same time, the air pressure sensor 13 will detect the air pressure change inside the box 1 in real time, and the microcontroller will input the real-time data from the air pressure sensor 13 into... The log shows that when the internal air pressure of box 1 is extracted to the required negative pressure, a certain amount of time is waited. During the waiting period, the microcontroller will also record and display the internal pressure value of box 1 in real time. During the waiting period, the tester can judge the airtightness of the surgical pack by observing the air pressure change. If there is a leak in the surgical pack, the air inside the pack will enter the inside of box 1 through the leak point, the internal pressure of box 1 will return, and the pressure index displayed by the microcontroller will increase. If the packaging is intact, the internal pressure of box 1 will remain stable because the air inside the pack cannot escape, thus realizing the negative pressure test of the airtightness of the surgical pack.

[0028] After the surgical pack is tested, when it is necessary to restore the pressure inside chamber 1, the tester opens the flow valve 8 to control the flow rate of air into chamber 1, ensuring that the air is evenly distributed inside chamber 1. When the air enters chamber 1, it first passes through the HEPA filter 12. During the process of air passing through the HEPA filter 12, dust and other impurities in the air are filtered out. The filtered air then enters the sterilization chamber 9 through the horizontal pipe 11. The ultraviolet lamp 10 is turned on to sterilize the air. The sterilized air then enters chamber 1 through the air inlet pipe 7, thereby restoring the air pressure inside chamber 1. Then, the surgical pack can be taken out and the next surgical pack can be placed in for testing.

[0029] Please see Figure 1 The front of the box 1 is provided with an observation window 14, and a transparent plate 15 is fixedly connected to the inner wall of the observation window 14.

[0030] In this invention, the observation window 14 and the transparent plate 15 facilitate observation of the interior of the box 1, thereby improving the practicality of the device.

[0031] Please see Figure 4 Among them, the ultraviolet lamp 10 is fitted with partitions 16 arranged at equal intervals, and the partitions 16 are fixed on the inner wall of the sterilization box 9 in an alternating manner.

[0032] In this invention, the partition 16 extends the time for the air to be sterilized by the ultraviolet lamp 10, thereby improving the sterilization effect on the air.

[0033] Please see Figure 4 Among them, the inner wall of the inlet and outlet 2 is fixedly connected with a sealing ring 17, and the surface of the sealing ring 17 is in contact with the sealing cover 3.

[0034] In this invention, the sealing ring 17 can improve the sealing effect between the sealing cover 3 and the inlet / outlet 2, thereby improving the practicality of the device.

[0035] Please see Figure 1 and 2 The top of the sealing cover 3 is fixedly connected to a cylinder 18, and a ring-shaped handle 19 is fixedly connected to the cylinder 18.

[0036] In this invention, the combination of the cylinder 18 and the handle 19 makes it easier for the user to rotate the sealing cover 3, thereby improving the practicality of the device.

[0037] Please see Figures 1-3 The air inlet of the HEPA filter 12 is connected to a return pipe 20, and the left end of the return pipe 20 is connected to the extraction pipe 4. A solenoid valve 21 is installed on the extraction pipe 4.

[0038] In this invention, after the surgical pack is placed, the solenoid valve 21 is closed, and the vacuum pump 6 and flow valve 8 are turned on. The vacuum pump 6 will extract the air inside the chamber 1. Since the air cannot be discharged from the suction pipe 4, the air will enter the HEPA filter 12 through the return pipe 20. The air will then be filtered and sterilized and returned to the chamber 1, realizing the circulation of the air inside the chamber 1. After the air circulates for a period of time, the air inside the chamber 1 will be filtered and sterilized, thereby maintaining the air quality inside the chamber 1 before testing and improving the stability of subsequent testing. During testing, the solenoid valve 21 is opened and the flow valve 8 is closed, at which time the negative pressure operation inside the chamber 1 can be performed normally.

[0039] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A surgical pack sealing negative pressure detection device, comprising a housing (1), characterized in that: The top of the box (1) is provided with an inlet and outlet (2), and the inner wall of the inlet and outlet (2) is threaded with a sealing cap (3). The left side of the box (1) is connected to an air extraction pipe (4), and a one-way valve (5) and a vacuum pump (6) are installed on the air extraction pipe (4). The right side of the box (1) is connected to an air inlet pipe (7), and a flow valve (8) is installed on the air inlet pipe (7). The right end of the air inlet pipe (7) is connected to a sterilization chamber (9). An ultraviolet lamp (10) is fixedly connected to the inner wall of the sterilization chamber (9). A horizontal pipe (11) is connected to the back of the sterilization chamber (9). A HEPA filter (12) is installed on the back of the box (1). The outlet of the HEPA filter (12) is connected to the left end of the horizontal pipe (11). A pressure sensor (13) is installed on the inner wall of the box (1). A microcontroller is installed on the top of the box (1). The input end of the microcontroller is connected to the pressure sensor (13).

2. The surgical pack sealing negative pressure detection device according to claim 1, characterized in that: The front of the box (1) is provided with an observation window (14), and a transparent plate (15) is fixedly connected to the inner wall of the observation window (14).

3. The surgical pack sealing negative pressure detection device according to claim 1, characterized in that: The ultraviolet lamp (10) is fitted with partitions (16) arranged at equal intervals, and the partitions (16) are fixed to the inner wall of the sterilization box (9) in an alternating manner.

4. The surgical pack sealing negative pressure detection device according to claim 1, characterized in that: A sealing ring (17) is fixedly connected to the inner wall of the inlet / outlet (2), and the surface of the sealing ring (17) is in contact with the sealing cover (3).

5. The surgical pack sealing negative pressure detection device according to claim 1, characterized in that: The top of the sealing cap (3) is fixedly connected to a cylinder (18), and a ring-shaped handle (19) is fixedly connected to the cylinder (18).

6. The surgical pack sealing negative pressure detection device according to claim 1, characterized in that: The air inlet of the HEPA filter (12) is connected to a return pipe (20), the left end of the return pipe (20) is connected to the suction pipe (4), and a solenoid valve (21) is installed on the suction pipe (4).

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