Hard endoscope leakage testing device

Abstract

The utility model discloses a hard endoscope leakage testing device, which comprises a testing box body, which is internally provided with a testing cavity with a top opening, and the top opening of the testing cavity is provided with a cover body capable of being opened and closed; the fixing device is mounted in the test cavity in a manner of sliding up and down, and the fixing device is driven by a moving mechanism to slide up and down; wherein the fixing device is used for mounting a hard endoscope; the cover body is provided with the connecting pipe which is communicated with the test cavity, and the connecting pipe is provided with an extraction opening and an air inlet; an air exhaust valve is arranged at an air exhaust opening of the connecting pipe, an air inlet valve is arranged at an air inlet of the connecting pipe, and a negative pressure meter is arranged on the connecting pipe; and an extraction opening of the negative pressure aspirator is communicated with the extraction opening of the connecting pipe through an extraction pipe. By adopting the testing device, the height of the hard endoscope can be adjusted according to the height of the water level in the testing cavity and testing requirements, the hard endoscope is convenient to install, test and take out, water is prevented from entering the leaked hard endoscope, the steps are simple, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to a leakage testing device, and more particularly to a rigid endoscope leakage testing device. Background Technology

[0002] The quality inspection of rigid endoscopes includes new product acceptance, post-repair, and periodic inspections or handovers between the operating room and the supply room. The main focus is on the overall sealing performance of the rigid endoscope to prevent water leakage inside the endoscope, such as the objective lens group, rod lens, and beam guide, during cleaning, disinfection, and sterilization due to decreased sealing. This can lead to blurred images, hardening of the beam guide after being immersed in water, and eventual darkening and breakage, resulting in decreased light guiding performance and potentially causing medical accidents during diagnosis and treatment.

[0003] Medical units often rely on visual inspection during the handover of rigid endoscopes purchased from manufacturers or sales companies, or after repairs, and routine testing between operating rooms and sterilization supply centers. This method fails to assess the overall sealing performance. Rigid endoscopes are used with various diagnostic and treatment equipment, such as power devices, high-frequency electrosurgical units, lasers, and ballistic devices, which can lead to a decrease in sealing. Furthermore, rigid endoscopes undergo cleaning, soaking, sterilization, and disinfection processes. Without leak testing, a decrease in sealing can result in blurred images, hardening and eventual dimming of the beam guide after immersion in water, and ultimately, reduced light guiding performance, potentially leading to medical accidents, including the risk of cross-infection. Therefore, leak testing of rigid endoscopes is necessary. Currently, rigid endoscope leak testing devices typically immerse the endoscope in a water-filled test chamber, then vacuum the chamber. If bubbles emerge from the endoscope, a leak exists; otherwise, the seal is intact. During testing, the rigid endoscope often needs to be manually immersed in water and then removed after the test. This process is cumbersome and inefficient. Furthermore, if the rigid endoscope leaks, it cannot be removed from the water in time because the testing equipment is still in operation, which can lead to water entering the rigid endoscope. Utility Model Content

[0004] The purpose of this invention is to provide a rigid endoscope leakage testing device, thereby overcoming the shortcomings of existing testing devices that require manual immersion and removal of the rigid endoscope in water, which is cumbersome and inefficient. Furthermore, when the rigid endoscope leaks, it cannot be removed from the water in time because the testing device is still in operation, which can lead to water ingress into the rigid endoscope.

[0005] To achieve the above objectives, this utility model provides a rigid endoscope leakage testing device, comprising: a test chamber having a test cavity with a top opening, the top opening of which is provided with an openable and closable cover; a fixing device installed in the test cavity in a way that allows it to slide up and down, and the fixing device is driven to slide up and down by a moving mechanism; wherein, the fixing device is used to install a rigid endoscope; a connecting tube having a connecting tube on the cover communicating with the test cavity, the connecting tube having an air extraction port and an air inlet; an air extraction valve having a suction port on the connecting tube, an air inlet valve having an air inlet having a suction port, and a negative pressure gauge having a negative pressure suction device; and a negative pressure suction device having its air extraction port communicating with the air extraction port of the connecting tube through an air extraction tube.

[0006] Preferably, in the above technical solution, a filter is also provided at the air inlet of the connecting pipe.

[0007] Preferably, in the above technical solution, the test chamber is cylindrical.

[0008] Preferably, in the above technical solution, the fixing device includes a fixing plate, which is slidably connected to the test cavity, and the fixing plate is provided with a plurality of spaced mounting holes for fixing a rigid endoscope; wherein, the fixing plate is driven to slide up and down by a moving mechanism.

[0009] Preferably, in the above technical solution, the side of the fixing plate is provided with a plurality of evenly distributed sliders along its circumferential direction, and the inner wall of the test cavity is provided with a groove with a length distributed in the vertical direction at a position corresponding to each slider, and the slider can slide up and down in the corresponding groove.

[0010] Preferably, in the above technical solution, the moving mechanism includes: an electric telescopic rod, which is waterproof, installed inside the test chamber, with the upper end of the telescopic rod connected to the bottom surface of the fixing device; a power supply installed on the outside of the test chamber; a transformer installed on the outside of the test chamber, with the output end of the power supply connected to the input end of the transformer; and a control switch installed on the outside of the test chamber, with the output end of the transformer connected to the input end of the control switch, and the output end of the control switch connected to the motor of the electric telescopic rod via a wire; wherein, the side wall of the test chamber is provided with a connection hole for the wire to pass through, and a sealing device is provided between the wire and the connection hole.

[0011] Preferably, in the above technical solution, the test chamber has a water outlet at the position of the connection hole, and the water outlet is located at the bottom of the side wall of the test chamber; the sealing device includes a rubber plug, the rubber plug is connected to the water outlet, and the power supply passes through the rubber plug.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The testing device of this utility model features a fixing device for mounting rigid endoscopes that can slide up and down within the testing chamber. This sliding motion is driven by a moving mechanism. During use, the rigid endoscope is simply installed on the fixing device, and then the moving mechanism drives the fixing device down the testing chamber and fully immerses it in water, facilitating installation. After the test, the moving mechanism drives the fixing device upwards, raising the rigid endoscope out of the water for easy removal. The process is simple and efficient. If leakage and air bubbles are detected during testing, the moving mechanism raises the fixing device, raising the endoscope out of the water and preventing water from entering. The structure of the moving mechanism and fixing device allows for adjustment of the rigid endoscope's height according to the water level in the testing chamber and testing requirements, facilitating installation, testing, and removal of the endoscope, making it flexible and convenient to use.

[0014] 2. The moving mechanism of this utility model adopts an electric telescopic rod structure, which can control the automatic lifting and lowering of the fixed device. It has a simple structure and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the rigid endoscope leakage testing device according to the present invention.

[0016] Figure 2 This is a schematic diagram of the installation structure of the test box and the fixing plate according to this utility model.

[0017] Explanation of key figure labels:

[0018] 1-Power supply, 2-Transformer, 3-Control switch, 4-Rubber stopper, 5-Test chamber, 6-Test cavity, 7-Mounting hole, 8-Water surface, 9-Suction valve, 10-Connecting pipe, 11-Negative pressure gauge, 12-Inlet valve, 13-Filter, 14-Suction pipe, 15-Negative pressure suction device, 16-Slide, 17-Fixing plate, 18-Rigid endoscope, 19-Electric telescopic rod, 20-Outlet, 21-Wire, 22-Slider, 23-Cover. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0020] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0021] Figure 1 and Figure 2 The diagram shows a structural schematic of a rigid endoscope 18 leakage testing device according to a preferred embodiment of the present invention. The testing device includes a test chamber 5, a fixing device, a connecting pipe 10, and a negative pressure suction device 15.

[0022] refer to Figure 1 and Figure 2The test chamber 5 has a test cavity 6 with an open top. The test cavity 6 is used to install a rigid endoscope 18 and is filled with water for testing. The top opening of the test cavity 6 has an openable and closable cover 23, facilitating the addition of water and the installation and removal of the rigid endoscope 18, while also ensuring the test cavity 6 is sealed for subsequent vacuuming operations. A fixing device is installed in the test cavity 6 in a sliding manner, and its height is adjusted by a moving mechanism. The fixing device is used to install the rigid endoscope 18. By adjusting the height of the fixing device, the height of the rigid endoscope 18 can be adjusted, allowing it to descend and be completely submerged below the water surface 8 for leak testing; or, it can be raised and above the water surface 8 for easy removal or to prevent water from entering a poorly sealed rigid endoscope 18. The cover 23 has a connecting pipe 10 communicating with the test cavity 6, and the connecting pipe 10 has an air extraction port and an air inlet. An air extraction valve 9 is provided at the air extraction port of the connecting pipe 10 to control the opening and closing of the air extraction port. An air inlet valve 12 is provided at the air inlet of the connecting pipe 10 to control the opening and closing of the air inlet. A negative pressure gauge 11 is provided on the connecting pipe 10 to measure the pressure inside the test chamber 6. The air extraction port of the negative pressure suction device 15 is connected to the air extraction port of the connecting pipe 10 through an air extraction pipe 14, so that the negative pressure suction device 15 can perform vacuum treatment on the test chamber 6, thereby creating a negative pressure inside the test chamber 6, which is used to test whether there is a leakage in the rigid endoscope 18. In use, simply install the rigid endoscope 18 onto the fixing device, and then drive the fixing device down along the test chamber 6 and fully immerse it in water via the moving mechanism, which is convenient for installation. After the test, drive the fixing device up via the moving mechanism to raise the rigid endoscope 18 and remove it from the water surface 8 for easy removal. The steps are simple and the work efficiency is high. If leakage and bubbles are found in the rigid endoscope 18 during the test, drive the fixing device up via the moving mechanism to raise the rigid endoscope 18 and remove it from the water surface 8, thus preventing water from entering the rigid endoscope 18. Through the structure of the moving mechanism and the fixing device, the height of the rigid endoscope 18 can be adjusted according to the water level in the test chamber 6 and the test requirements, which is convenient for the installation, testing and removal of the rigid endoscope 18, making it flexible and convenient to use.

[0023] refer to Figure 1 Preferably, a filter 13 is also provided at the air inlet of the connecting pipe 10. After the leakage test of the rigid endoscope 18 is completed, the negative pressure suction device 15 and the suction valve 9 are closed, and the air inlet valve 12 is opened. Outside air enters the test chamber 6 through the filter 13 and the air inlet valve 12 in sequence, which facilitates the opening of the cover 23 later. The filter 13 plays the role of noise reduction and air filtration, which can prevent excessive airflow noise and filter impurities in the air, thereby preventing impurities from entering the test chamber 6 with the air and ensuring that subsequent testing can be carried out normally.

[0024] refer to Figure 1 and Figure 2 The cross-section of the test chamber 5 can be elliptical, rectangular, or circular. Preferably, the test chamber 5 is cylindrical.

[0025] refer to Figure 1 and Figure 2 The fixing device can be a fixed bracket structure or a fixed plate 17 structure. Preferably, the fixing device includes a fixed plate 17, which is slidably connected to the test chamber 6, resulting in a simple structure. The fixed plate 17 has multiple spaced mounting holes 7 for fixing rigid endoscopes 18, allowing the rigid endoscopes 18 to move up and down with the fixed plate 17; it also allows for the simultaneous installation of one or more rigid endoscopes 18 as needed, enabling leakage testing of one or more rigid endoscopes 18. The fixed plate 17 slides up and down driven by a moving mechanism. To facilitate the sliding of the fixed plate 17, a groove 16 and a slider 22 can be provided between the fixed plate 17 and the inner wall of the test chamber 6. More preferably, multiple evenly distributed sliders 22 protrude along the circumferential direction on the side of the fixed plate 17, and a groove 16 with a length distributed along the vertical direction is recessed at a position corresponding to each slider 22 on the inner wall of the test chamber 6, allowing the slider 22 to slide up and down within the corresponding groove 16.

[0026] refer to Figure 1 The moving mechanism can be a cylinder structure or an electric telescopic rod 19, etc. Preferably, the moving mechanism includes an electric telescopic rod 19, a power supply 1, a transformer 2, and a control switch 3. The electric telescopic rod 19 is waterproof, allowing it to be installed below the water surface 8 and ensuring normal operation. The electric telescopic rod 19 is installed inside the test chamber 6, and the upper end of the telescopic rod 19 is connected to the bottom surface of the fixing plate 17 of the fixing device. The extension and retraction of the telescopic rod drives the fixing plate 17 to slide up and down, thus raising and lowering the rod. The power supply 1 is installed on the outside of the test chamber 5 to provide driving force for the electric telescopic rod 19. The transformer 2 is installed on the outside of the test chamber 5, and the output end of the power supply 1 is connected to the input end of the transformer 2. The control switch 3 is installed on the outside of the test chamber 5. The output end of the transformer 2 is connected to the input end of the control switch 3, and the output end of the control switch 3 is connected to the motor of the electric telescopic rod 19 via a wire 21 to control the opening, closing, and extension and retraction of the electric telescopic rod 19. The test chamber 5 has a connection hole on its side wall through which the power supply cable 21 passes, and a sealing device is provided between the cable 21 and the connection hole to prevent water from flowing out of the gap between the cable 21 and the connection hole inside the test chamber 6. The moving mechanism adopts an electric telescopic rod 19 structure, which can control the automatic lifting and lowering of the fixing device. The structure is simple and easy to operate.

[0027] refer to Figure 1 and Figure 2To facilitate the drainage of water from the test chamber 6, preferably, the test chamber 5 has a water outlet 20 at the connection hole, and the water outlet 20 is located at the bottom of the side wall of the test chamber 6, so as to facilitate the drainage of water from the test chamber 6. The sealing device includes a rubber plug 4, which is connected to the water outlet 20. The power supply 1 passes through the rubber plug 4, so that there are no gaps between the rubber plug 4 and the water outlet 20, and between the rubber plug 4 and the wire 21, to prevent water from leaking out of the test chamber 6.

[0028] refer to Figure 1 and Figure 2 In use, water is injected into the test chamber 6 until the water level reaches a certain height, allowing the rigid endoscope 18 to be completely submerged below the water surface 8. The electric telescopic rod 19 is extended via the control switch 3, driving the mounting plate 17 to rise. The rigid endoscope 18 to be tested is then installed on the mounting hole 7 of the mounting plate 17. Next, the electric telescopic rod 19 is lowered via the control switch 3, causing the mounting plate 17 to descend until the rigid endoscope 18 is completely submerged. Finally, the cover 23 is closed. The suction valve 9 is opened, the inlet valve 12 is closed, and the negative pressure suction device 15 is activated. The negative pressure gauge 11 is observed. When the negative pressure reaches a certain level, if the rigid endoscope 18 experiences a decrease in sealing or leakage, bubbles will appear in the water. If air bubbles appear, control switch 3 to extend the electric telescopic rod 19 and raise the fixing plate 17, so that the rigid endoscope 18 is exposed above the water surface 8, preventing water from entering the rigid endoscope 18. At the same time, close the negative pressure suction device 15 and the air extraction valve 9, and open the air intake valve 12 to allow outside air to enter the test chamber 6. Then open the cover 23 and remove the rigid endoscope 18 to complete the test. If no air bubbles appear, it indicates that the rigid endoscope 18 is well sealed. Close the negative pressure suction device 15 and the air extraction valve 9, and open the air intake valve 12 to allow outside air to enter the test chamber 6. At the same time, control switch 3 to extend the electric telescopic rod 19 and raise the fixing plate 17, so that the rigid endoscope 18 is exposed above the water surface 8. Then open the cover 23 and remove the rigid endoscope 18 to complete the test. Based on the test results, after marking the rigid endoscope 18 as leaking or properly sealed, proceed with the next steps of cleaning, disinfection, and sterilization. Report the situation to the department using the equipment and the equipment management department, and send the leaking rigid endoscope 18 to the manufacturer for repair.

[0029] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A hard scope leak testing device, comprising: The utility model relates to a test box for hard endoscope, which comprises a test box body, a test cavity with an open top in the test box body, a cover capable of being opened and closed on the top of the test cavity, a fixing device capable of sliding up and down in the test cavity, a connecting pipe on the cover and communicating with the test cavity, an air suction port and an air inlet on the connecting pipe, an air suction valve on the air suction port of the connecting pipe, an air inlet valve on the air inlet of the connecting pipe, a negative pressure gauge on the connecting pipe, and a negative pressure aspirator with an air suction port communicating with the air suction port of the connecting pipe through an air suction pipe. The air inlet of the connecting pipe is also provided with a filter. The test box body is in a cylindrical shape. The fixing device comprises a fixing plate sliding up and down with the test cavity, a plurality of mounting holes spaced apart on the fixing plate, and the mounting holes being used for fixing the hard endoscope. The side of the fixing plate is provided with a plurality of uniformly distributed sliding blocks in the circumferential direction, and the inner side wall of the test cavity is recessed with a sliding groove with a length distributed in the up-down direction at a position corresponding to each sliding block, and the sliding block can slide up and down in the corresponding sliding groove.

2. The hard scope leak testing device of claim 1, wherein, The moving mechanism comprises an electric telescopic rod in a waterproof structure, an electric power supply installed outside the test box body, a transformer installed outside the test box body, an output end of the electric power supply being connected with an input end of the transformer, a control switch installed outside the test box body, an output end of the transformer being connected with an input end of the control switch, an output end of the control switch being connected with a motor of the electric telescopic rod through an electric wire, a connecting hole in the side wall of the test box body for the electric wire to pass through, and a sealing device between the electric wire and the connecting hole.

3. The hard scope leak testing device of claim 1, wherein, The test box body is provided with a water outlet at the position of the connecting hole, and the water outlet is located at the bottom of the side wall of the test cavity.

4. The hard scope leak testing device of claim 1, wherein, The sealing device comprises a rubber plug corresponding to the water outlet, and the electric power supply is arranged in the rubber plug.

5. The hard scope leak testing device of claim 4, wherein, ​ 6. The hard scope leak testing device of claim 1 or 4, wherein, ​ ​ ​ ​ ​ 7. The hard scope leak testing device of claim 6, wherein, ​

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