Air leakage detection device for endoscope and control method thereof

Abstract

The invention relates to the technical field of air leakage detection of endoscopes, and provides an air leakage detection device of an endoscope and a control method of the air leakage detection device of the endoscope, and the air leakage detection device of the endoscope comprises a box body which is of a sealed structure and is internally used for containing liquid and the endoscope; the negative pressure pump is connected with the box body and is used for pumping fluid in the box body; and the camera system is connected with the box body and is used for acquiring an image of the endoscope and determining an air leakage position of the endoscope. According to the technical scheme, whether the endoscope leaks air or not can be automatically recognized, observation of human eyes is omitted, and the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of endoscope air leakage detection, and in particular to an endoscope air leakage detection device and a control method thereof. Background Art

[0002] When an endoscope repair company detects whether an endoscope is leaking, it usually places the endoscope in a closed area, soaks the endoscope in water, applies negative pressure to the closed area, and then manually observes whether the endoscope generates bubbles in the water. If continuous bubbles appear at a certain position, it indicates a leak at that position.

[0003] However, when applying negative pressure to the closed area again, the pressure cannot be too high. If the negative pressure is too high, and if the endoscope currently being tested is leaking, a large amount of water will quickly enter the endoscope. In severe cases, the endoscope may be directly scrapped, resulting in a large loss. Therefore, in the process of applying negative pressure again, the pressure cannot be too high, so as to prevent water from quickly entering the endoscope. However, in the process of maintaining a small negative pressure to detect whether the endoscope is leaking, personnel will have to observe for a long time, thereby wasting manpower costs. Summary of the Invention

[0004] The technical problem to be solved by the present application is to provide an endoscope air leakage detection device and a control method thereof, which can automatically identify whether the endoscope is leaking, eliminate human visual observation, and reduce labor costs.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions: In the first aspect, the present application provides an endoscope leakage detection device, comprising: a box body, which is a sealed structure and is used to contain liquid and an endoscope; a negative pressure pump, connected to the box body, for extracting the fluid in the box body; a camera system, connected to the box body, for acquiring an image of the endoscope and determining the leakage position of the endoscope.

[0006] As an embodiment, the air leakage detection device also includes an alarm device, which is communicatively connected to the camera system; the air leakage detection device also includes a control system, which is communicatively connected to the alarm device; when the air leakage detection device detects an endoscope leak, the control system is used to control the alarm device to send an alarm signal.

[0007] As an embodiment, the camera system includes at least three cameras, including two horizontally arranged first cameras, the two first cameras are respectively fixed at the two ends of the length direction of the box, and the two first cameras are axially aligned to determine the leakage position at both ends of the endoscope; the camera system also includes a second camera arranged in the vertical direction, and the second camera is used to determine the leakage position of the light cone position of the endoscope.

[0008] As an embodiment, a first movable mechanism is further provided in the box body, and the first movable mechanism is connected to the bottom wall of the box body. The first movable mechanism is used to connect to the endoscope and / or the second camera so that the light cone on the endoscope is partially aligned with the second camera.

[0009] As an embodiment, the first moving mechanism and the camera system are both located on the same vertical plane.

[0010] As an embodiment, the air leakage detection device further includes at least one telescopic member, one end of the telescopic member is connected to the first moving mechanism, and the other end is used to support the endoscope, and the telescopic member is used to adjust the height of the endoscope.

[0011] As an embodiment, a clamp is provided at one end of the telescopic member, and the clamp is used to connect to the endoscope.

[0012] As an embodiment, a driving member and a transmission mechanism are further provided in the telescopic member, and the transmission mechanism is connected to the driving member and the clamp respectively. The driving member can drive the clamp to rotate around the axis of the first camera.

[0013] As an embodiment, the air leakage detection device further includes a drain valve and a pressure relief valve, and the drain valve and / or the pressure relief valve are communicatively connected to the control system.

[0014] In the second aspect, the present application provides a control method for the air leakage detection device of the endoscope described in the first aspect, S1, before detection, the endoscope is cleaned; S2, the endoscope is placed in the box, negative pressure is drawn, and whether there is air leakage in multiple different positions of the endoscope in real time within the preset pressure maintenance time, and the monitoring data is displayed in real time. If there is air leakage, an alarm signal is issued.

[0015] The technical solution of this application has the following beneficial effects: The air leakage detection device of the endoscope includes a box body, which is a sealed structure; it also includes a negative pressure pump, which is connected to the box body and is used to extract the fluid in the box body to put the box body in a negative pressure state; the box body is also provided with a camera system, which can obtain the image of the endoscope and determine whether the endoscope is leaking based on the image. When the endoscope needs to be leaked, the endoscope is placed in a sealed box body, and then fluid is injected into the box body so that the fluid submerges the endoscope. Then, the negative pressure pump is started to put the box body in a negative pressure state. The camera system will obtain the image of the endoscope in real time. If the endoscope currently being tested is leaking, continuous bubbles will emerge in the fluid, which will be captured by the camera system at this time. The camera system will determine the current leak position of the endoscope by analyzing the currently obtained image information, so that when the endoscope is leaking, there is no need to observe whether there is a leak with the human eye, freeing up time for the observer to do other things, thereby reducing the output of labor costs in endoscope leak detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of an endoscope air leakage detection device provided in an embodiment of the present application; Figure 2 A schematic structural diagram of the endoscope air leakage detection device provided in an embodiment of the present application from another perspective; Figure 3 A schematic diagram of the partial structure of an endoscope air leakage detection device provided in an embodiment of the present application; Figure 4 A top view of an endoscope air leakage detection device provided in an embodiment of the present application; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction.

[0018] Icons: 1- box; 2- negative pressure pump; 3- camera system; 31- first camera; 32- second camera; 4- alarm device; 5- control system; 6- first moving mechanism; 61- slideway; 62- slider; 7- telescopic part; 8- clamp; 9- pressure relief valve; 10- drain valve; 11- pressure gauge. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0021] like Figure 1 and 3 As shown, the embodiment of the present application provides an endoscope air leakage detection device, including a box body 1, which is a sealed structure; further comprising a negative pressure pump 2, which is connected to the box body 1 and is used to extract the fluid in the box body 1 to make the box body 1 in a negative pressure state; the box body 1 is also provided with a camera system 3, which can obtain an image of the endoscope and determine whether the endoscope is leaking based on the image. When the endoscope needs to be tested for air leakage, the endoscope is placed in the sealed box body 1, and then fluid is injected into the box body 1 so that the fluid immerses the endoscope. Then start the negative pressure pump 2 to put the box 1 in a negative pressure state. The camera system 3 will obtain the image of the endoscope in real time. If the endoscope currently being tested is leaking, continuous bubbles will emerge in the fluid. At this time, they will be captured by the camera system 3. The camera system 3 will determine the current leakage position of the endoscope by analyzing the currently obtained image information, so that when the endoscope is performing leakage detection, there is no need to observe whether there is a leak with the human eye, freeing up time for the observer to do other things, thereby reducing the output of labor costs in endoscope leakage detection.

[0022] Optionally, the box body 1 can be made of acrylic or metal. The box body 1 includes a box body and a cover. The box body is used to hold liquid. The cover is placed on top of the box body, and a sealing strip is provided between the box body and the cover to ensure the sealing of the box body 1. In order to avoid air leakage between the box body and the cover, a lock or other structure can be provided on the cover to further increase the sealing of the box body 1.

[0023] Optionally, the liquid injected into the box body 1 can be water, or 70% isopropyl alcohol, etc.

[0024] Optionally, the fluid extracted by the negative pressure pump 2 may be the air in the box 1 , or the liquid in the box 1 . As a preferred embodiment, the negative pressure pump 2 in the embodiment of the present application extracts the air in the box 1 .

[0025] Optionally, the camera system 3 can analyze the image by itself to determine whether there are bubbles. If continuous bubbles appear, it is determined that the endoscope is leaking. Of course, the leakage detection device can also include a control system 5, which obtains the image taken by the camera system 3 and analyzes whether there are continuous bubbles in the image.

[0026] Optionally, the camera system 3 may also record a video after determining that the endoscope is leaking.

[0027] Optionally, the video data and images acquired by the camera system 3 can be viewed through a computer.

[0028] Optionally, to analyze whether there are continuous bubbles in the image, an image analysis system available on the market can be used for processing. The image analysis system can analyze whether there are continuous bubbles in the image through a series of algorithms. That is to say, in the embodiment of the present application, the image analysis system can be integrated with the camera system 3, so that the camera system 3 can not only acquire the image itself, but also analyze whether the image is leaking; of course, the image analysis system can also be integrated into the control system 5, and the camera system 3 only acquires the image, and after the control system 5 acquires the image, it is analyzed by the image analysis system.

[0029] Optionally, the negative pressure pump 2 may be connected to the box body 1 through a connecting pipe.

[0030] Optionally, the air leakage detection device of the embodiment of the present application can be used to detect a flexible endoscope or a rigid endoscope.

[0031] like Figure 1 As shown, optionally, a pressure gauge 11 for monitoring the pressure in the box 1 can also be provided on the connecting pipe.

[0032] Optionally, the pressure in the box 1 can be set at 80Kpa. After reaching 80Kpa, the negative pressure pump 2 stops running and the pressure holding time can be more than half an hour. However, in some cases, individual endoscopes have serious air leakage and continuous bubbles may appear after being placed in the box 1 for a few seconds. At this time, the control system 5 needs to quickly open the pressure relief valve 9 and / or the drain valve 10 to prevent the liquid from further flowing into the endoscope.

[0033] Generally, endoscopes are suitable for a pressure range of 30Kpa-100Kpa, because some mirrors may not bubble at 30Kpa but start bubbling at 50Kpa, while some mirrors may not bubble at 50Kpa but start bubbling at 80Kpa. Of course, the pressures tested by different types of endoscopes may be different, so the pressure value can be adjusted according to actual conditions.

[0034] Optionally, when the endoscope is first placed in the box 1, a single bubble may appear in the endoscope or discontinuous bubbles may appear after a period of time. At this time, it is not that the endoscope is leaking, but that the air in the endoscope itself has not been emptied.

[0035] Optionally, the embodiment of the present application can be used to detect air leaks in endoscopes such as laparoscopes and cystoscopes. Figure 1As shown, as an embodiment, the air leakage detection device also includes an alarm device 4, which is communicatively connected to the camera system 3; the air leakage detection device also includes a control system 5, which is communicatively connected to the alarm device 4; when the air leakage detection device detects that the endoscope is leaking, that is, when the control system 5 or the camera system 3 determines that the current endoscope is leaking, the control system 5 controls the alarm device 4 to send an alarm signal to remind personnel that the current endoscope is leaking and that the pressure needs to be released to drain water to avoid excessive liquid from entering the endoscope, causing the endoscope to be scrapped.

[0036] Optionally, the alarm signal emitted by the alarm device 4 may be sound, light, or both.

[0037] like Figure 3 and 5 As shown, as an embodiment, the camera system 3 includes at least three cameras, including two horizontally arranged first cameras 31, and the two first cameras 31 are respectively fixed at the two ends of the length direction of the box 1, and the two first cameras 31 are axially aligned. When the endoscope is fixed in the box 1, the two first cameras 31 can obtain images of the positions at both ends of the endoscope, and determine whether there is an air leak through the control system 5 or the camera system 3; the camera system 3 also includes a second camera 32 arranged in the vertical direction, and the second camera 32 is used to determine the leakage position of the light cone position of the endoscope. In this way, through the cooperation of multiple cameras, the position where the endoscope can leak can be detected to finally determine whether the endoscope is leaking.

[0038] Optionally, the two first cameras 31 are used to observe the front objective lens window and the rear eyepiece window respectively, and the second camera 32 is used to observe the light cone connection position.

[0039] like Figure 5 As shown, optionally, the second camera 32 can be set below or above the endoscope; of course, an additional second camera 32 can be set in the box 1, and the two second cameras 32 are aligned and distributed above and below the endoscope, and are both used to observe the position near the light cone of the endoscope.

[0040] Optionally, the length direction of the box 1 refers to the direction in which the endoscope is placed. Since the endoscope is long, the box 1 can generally be set to a rectangular parallelepiped structure.

[0041] Optionally, the image captured by each camera can be presented in the form of a report. For example, if there is a leak in the objective window of the endoscope, the report will show that continuous bubbles appear in the image captured by the first camera 31 on the left, making the leakage position of the endoscope more intuitive. At the same time, after the first camera 31 and the second camera 32 obtain the image of the leakage, the control system 5 can control the corresponding camera to shoot another video material.

[0042] Optionally, since the first camera 31 and the second camera 32 need to be immersed in liquid when working, it is necessary to select cameras with good waterproof properties.

[0043] Optionally, in order to prevent electric leakage, some wire troughs can be opened in the box 1, and some wires related to the camera can be placed in the wire troughs, and then the wire troughs are sealed to prevent the wires from contacting the liquid in the box 1, while also achieving the purpose of waterproof insulation.

[0044] Of course, in some cases, the box body 1 may also be a sandwich structure, with wiring running inside the sandwich layer and then passing through the box body 1 at the corresponding position. The passing part also needs to be waterproofed. Technicians in this field can make some improvements to waterproof it when making relevant designs.

[0045] Optionally, the air leakage detection device also includes a computer, which can display the image information obtained by each camera in real time and present a report after the test is completed. At the same time, the report will show whether the tested endoscope is qualified.

[0046] Generally, the eyepiece window, objective window, welding part between the main body and the working tube, mirror seal, light cone fiber connection, etc. of the endoscope are key monitoring parts. Therefore, in the embodiment of the present application, more cameras can be set to detect different positions according to actual detection needs.

[0047] like Figure 3 and 5 As shown, as an embodiment, a first moving mechanism 6 is further provided in the box body 1, and the first moving mechanism 6 is connected to the bottom wall of the box body 1. The first moving mechanism 6 is used to connect with the endoscope and / or the second camera 32. When encountering endoscopes of different models or different sizes, the first moving mechanism 6 controls the endoscope to move along the length direction so that the light cone on the endoscope is partially aligned with the second camera 32, thereby improving the adaptability of the air leakage detection device and being able to detect more models of endoscopes.

[0048] like Figure 5 As shown, optionally, the first moving mechanism 6 includes a slide 61 and a slider 62 arranged along the length direction of the box 1. The slider 62 can slide on the slide 61 to align the endoscope with the second camera 32.

[0049] Optionally, the first movable mechanism 6 can be connected to the endoscope to control the endoscope to align with the second camera 32 on the bottom wall of the box 1; of course, the first movable mechanism 6 can also be connected to the second camera 32 on the bottom wall of the box 1 to control the movement of the second camera 32, and the endoscope is fixed so that the second camera 32 is aligned with the light cone part of the endoscope; of course, the endoscope and the second camera 32 on the box 1 can also be connected to the first movable mechanism 6 to align the second camera 32 with the light cone part of the endoscope.

[0050] Optionally, the slider 62 may be connected to the endoscope, may be connected to the second camera 32, or may be connected to both the endoscope and the second camera 32 at the same time.

[0051] Optionally, the first moving mechanism 6 also needs to be waterproof. The wire part can be set in the wire groove, the motor part can be provided with a waterproof cover, etc. Those skilled in the art can make some adaptive improvements in the waterproof design.

[0052] Optionally, the first moving mechanism 6 can be a resin nut ball screw, the screw shaft and the balls are made of stainless steel, and the nut is made of super engineering plastic.

[0053] As an embodiment, the first movable mechanism 6 and the camera system 3 are both on the same vertical plane. In this way, the endoscope placed on the first movable mechanism 6 and the camera system 3 are also on the same vertical plane. In this way, the first movable mechanism 6 only needs to adjust the movement of the endoscope in the length direction, which facilitates the correspondence between the endoscope and multiple cameras, reduces the adjustment of the position of the endoscope, and improves the detection efficiency.

[0054] like Figure 3 and 5 As shown, as an embodiment, the air leakage detection device also includes at least one telescopic member 7, one end of the telescopic member 7 is connected to the first moving mechanism 6, and the other end is used to support the endoscope. The telescopic member 7 is used to adjust the height of the endoscope so that the two ends of the endoscope can be aligned with the two first cameras 31 respectively, thereby improving the adaptability of the product.

[0055] Optionally, one end of the telescopic member 7 is connected to the slider 62, which can drive the telescopic member 7 to move. At least two sliders 62 can be provided, and two telescopic members 7 are also provided to support both ends of the endoscope.

[0056] Optionally, the telescopic member 7 can be a mechanically pressed telescopic rod, or of course, an electric telescopic rod. This embodiment of the present application does not specifically limit this. If it is an electric telescopic rod, waterproofing issues also need to be considered during the design process, and the electric part can be designed in a waterproof cover.

[0057] like Figure 3 and5 As shown, as an embodiment, a clamp 8 is provided at one end of the telescopic member 7, and the clamp 8 is used to connect with the endoscope. By providing the clamp 8, the insertion tube of the endoscope is clamped to achieve support for the endoscope.

[0058] Optionally, the clamp 8 may be similar to a clamp structure, or may be in other forms as long as it can clamp the insertion tube.

[0059] Optionally, the angle can be mechanical or electric.

[0060] As an embodiment, a driving member and a transmission mechanism are also provided in the telescopic member 7, and the transmission mechanism is respectively connected to the driving member and the clamp 8. The driving member can drive the clamp 8 to rotate around the axis of the first camera 31. In this way, when the clamp 8 clamps the endoscope, the transmission mechanism can transmit the power of the driving member to the clamp 8 through the drive of the driving member, so that the endoscope fixed at the angle rotates circumferentially around the axis of the first camera 31. In this way, the first camera 31 and the second camera 32 can obtain a more comprehensive image.

[0061] Optionally, the driving member can be a motor, the transmission mechanism can be a belt or a gear set, etc., of course, it can also be a worm gear structure, of course, it can also be a crank slider 62 structure, that is, the transmission mechanism can convert the power of the driving member in the vertical direction into the rotational force of the clamp 8 in the horizontal direction.

[0062] like Figure 1 and 2 As shown, as an embodiment, the air leakage detection device also includes a drain valve 10 and a pressure relief valve 9. The drain valve 10 and / or the pressure relief valve 9 are communicatively connected to the control system 5. By setting the drain valve 10 and the pressure relief valve 9, if the endoscope currently being detected is leaking, the control system 5 can quickly control the drain valve 10 to open, so that the water in the box 1 is discharged, thereby improving intelligence and eliminating the need to manually open the drain valve 10; of course, the control system 5 can also control the pressure relief valve 9 alone to relieve pressure, and there is no need to manually open the pressure relief valve 9; of course, when the endoscope is leaking, the control system 5 can also simultaneously control the drain valve 10 and the pressure relief valve 9, thereby realizing fully automatic detection.

[0063] Optionally, the drain valve 10 and the pressure relief valve 9 may be electronic and communicated with the control system 5 . Of course, they may also be mechanical.

[0064] Optionally, the air leakage detection device also includes a second moving mechanism, which is connected to the first moving mechanism 6 and is used to control the movement of the endoscope along the width direction of the box 1. In this way, the first moving mechanism 6 cooperates with the second moving mechanism to adjust the endoscope in both length and width directions, thereby improving the adaptability of the product and meeting the detection requirements of endoscopes of different specifications and sizes.

[0065] Optionally, the structure of the second moving mechanism may be the same as that of the first moving mechanism 6 , and the slider 62 of the second moving mechanism may be connected to the slideway 61 of the first moving mechanism 6 .

[0066] In a second aspect, an embodiment of the present application provides a control method for the air leakage detection device of an endoscope provided in the first aspect, S1. Before detection, the endoscope is cleaned to prevent any residue from being left in the endoscope to prevent air leakage from clogging the pipeline; S2. The endoscope is placed in a box, negative pressure is drawn, and multiple different positions of the endoscope are monitored in real time for air leaks within a preset pressure maintenance time, and the monitoring data is displayed in real time. If there is an air leak, an alarm signal is issued, so that when the endoscope is performing air leakage detection, there is no need to observe whether there is an air leak with the human eye, freeing up time for observers to do other things, thereby reducing the output of labor costs in endoscope air leakage detection.

[0067] Optionally, the preset time may be half an hour. That is, within half an hour of detection, the camera system 3 needs to acquire images of different positions of the endoscope in real time.

[0068] Optionally, the negative pressure pump is started to extract the internal air until the pressure reaches 80Kpa. After reaching 80Kpa, the vacuum pump stops running and the pressure can be maintained for half an hour or a few seconds.

[0069] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0070] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

[0071] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. An endoscope air leakage detection device, characterized in that: include: The box body is a sealed structure and is used to hold liquid and endoscope; a negative pressure pump connected to the box body and used to extract the fluid in the box body; The camera system is connected to the box and is used to obtain images of the endoscope and determine the leakage position of the endoscope.

2. The endoscope gas leakage detection device according to claim 1, characterized in that: The gas leakage detection device further includes an alarm device, which is communicatively connected to the camera system; the gas leakage detection device further includes a control system, which is communicatively connected to the alarm device; When the air leakage detection device detects air leakage in the endoscope, the control system is used to control the alarm device to send an alarm signal.

3. The endoscope gas leakage detection device according to claim 2, characterized in that: The camera system includes at least three cameras, including two horizontally arranged first cameras, the two first cameras are respectively fixed at the two ends of the length direction of the box, and the two first cameras are axially aligned to determine the air leakage position at both ends of the endoscope; The camera system further comprises a second camera arranged in a vertical direction, and the second camera is used to determine the air leakage position of the light cone position of the endoscope.

4. The endoscope gas leakage detection device according to claim 3, characterized in that: A first moving mechanism is also provided in the box body, which is connected to the bottom wall of the box body. The first moving mechanism is used to connect to the endoscope and / or the second camera so that the light cone on the endoscope is aligned with the second camera.

5. The endoscope gas leakage detection device according to claim 4, characterized in that: The first moving mechanism and the camera system are both located on the same vertical plane.

6. The gas leakage detection device for an endoscope according to claim 4 or 5, characterized in that: The air leakage detection device further includes at least one telescopic member, one end of which is connected to the first moving mechanism, and the other end of which is used to support the endoscope, and the telescopic member is used to adjust the height of the endoscope.

7. The endoscope gas leakage detection device according to claim 6, characterized in that: One end of the telescopic member is provided with a clamp, and the clamp is used to be connected to the endoscope.

8. The endoscope gas leakage detection device according to claim 7, characterized in that: A driving member and a transmission mechanism are further provided in the telescopic member. The transmission mechanism is connected to the driving member and the clamp respectively. The driving member can drive the clamp to rotate around the axis of the first camera.

9. The gas leakage detection device for an endoscope according to any one of claims 2 to 5, characterized in that: The air leakage detection device further includes a drain valve and a pressure relief valve, and the drain valve and / or the pressure relief valve are communicatively connected to the control system.

10. A control method for the air leakage detection device of an endoscope according to any one of claims 1 to 9, characterized in that: S1. Before testing, clean the endoscope; S2. Place the endoscope in the box, pump negative pressure, monitor multiple different positions of the endoscope for leaks in real time within a preset pressure-maintaining time, and display the monitoring data in real time. If there is a leak, an alarm signal is issued.

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