Gastrointestinal endoscope pretreatment box

The design of the gastrointestinal endoscope pretreatment box solves the portability problem of flexible endoscopes, enables enzyme soaking and perfusion outside the hospital, and reduces the risk of biofilm adhesion and equipment damage rate.

CN122423970APending Publication Date: 2026-07-21BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
Filing Date
2026-06-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing technology, the bedside pretreatment equipment for flexible endoscopes is not portable and cannot be used for endoscope enzyme soaking outside the hospital, resulting in a high risk of biofilm adhesion and an increased equipment damage rate.

Method used

A pretreatment box for gastrointestinal endoscopes was designed, comprising a box body, a lens placement slot, a water inlet pipe, a pressurizing component, and a wastewater collection unit, forming a portable structure that enables enzyme soaking and perfusion operations to be performed outside of hospitals.

Benefits of technology

This enables enzyme immersion and perfusion at off-site locations, reducing the risk of biofilm adhesion, extending the lifespan of endoscopes, and lowering the risk of cross-infection.

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Abstract

The present disclosure relates to the technical field of medical instruments, in particular to a gastrointestinal endoscope pretreatment box. The present disclosure provides a gastrointestinal endoscope pretreatment box, comprising a box body; a plurality of placing grooves arranged in the box body, wherein the plurality of placing grooves have at least one lens placing groove, a water inlet hole and a water outlet hole are arranged on the groove wall of the lens placing groove, and in a lavage state, the flushing liquid flows into the lens placing groove through the water inlet hole and flows out of the lens placing groove through the water outlet hole; a water inlet pipeline connected to the water inlet hole, wherein the water inlet pipeline is provided with a pressure booster, and the pressure booster is used for adjusting the water inlet pressure of the lens placing groove; a wastewater collection part arranged in the box body, wherein the wastewater collection part is connected to the water outlet hole through a recovery pipeline, and the wastewater collection part is used for collecting the wastewater discharged from the lens placing groove.
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Description

Technical Field

[0001] This disclosure relates to the field of medical device technology, and in particular to a gastrointestinal endoscope pretreatment box. Background Technology

[0002] Currently, bedside pretreatment of flexible endoscopes has strict specifications. After the procedure, they must be immediately soaked in endoscope-specific cleaning enzymes to effectively remove biofilm from the lumen and reduce the risk of infection. However, the cleaning and disinfection equipment currently available to achieve this standard procedure is all fixed in dedicated tanks or workstations in hospital endoscopy centers. These are bulky, dependent on fixed water and electricity supplies, and completely lack portability.

[0003] When doctors need to travel for consultations or perform gastrointestinal endoscopy outside the hospital, they cannot take these devices with them. After the procedure, there are neither soaking containers nor a suitable environment for immediately using endoscope-specific enzyme solutions. They can only perform a simple wipe of the endoscope's outer surface or rinse the lumen with water. However, simple physical wiping and rinsing cannot replace the biofilm-breaking and removal effect of enzyme soaking. Biofilms easily form and firmly adhere to the inner wall of the lumen within a short time. Especially after receiving infected patients, if enzyme soaking is not performed immediately, the formed biofilm, even if subsequently sterilized according to standard procedures upon return to the hospital, is difficult to completely remove. This significantly increases the risk of cross-infection and also makes these expensive instruments more susceptible to damage due to the lack of timely and standardized handling.

[0004] Therefore, there is an urgent need for a portable device that can be carried out and used to pre-treat endoscopes with enzyme solution directly at the surgical site, so that the standard requirement for immediate pre-treatment can be achieved during out-of-hospital treatment. Summary of the Invention

[0005] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this disclosure provides a gastrointestinal endoscopy pretreatment box, comprising: Box; Multiple placement slots are provided inside the housing. Each of the multiple placement slots has at least one lens placement slot. The wall of the lens placement slot is provided with a water inlet and a water outlet. When the lens placement slot is in the rinsing state, the rinsing liquid flows in through the water inlet and flows out through the water outlet. A water inlet pipe is connected to the water inlet hole. The water inlet pipe is equipped with a pressure booster, which is used to adjust the water inlet pressure of the lens placement slot. A wastewater collection unit is located inside the tank. The wastewater collection unit is connected to the water outlet through a recycling pipe, and the wastewater collection unit is used to collect the wastewater discharged from the lens placement slot.

[0007] In some embodiments, the housing is further provided with multiple shock-absorbing protection devices, which are respectively located in multiple placement slots.

[0008] In some embodiments, the shock-absorbing protection device is a plurality of elastic protrusions provided on the inner wall of the placement groove.

[0009] In some embodiments, a row of water outlet holes is provided on the sidewalls opposite to the lens placement slot, and the two rows of water outlet holes are arranged opposite to each other.

[0010] In some embodiments, the water inlet includes a plurality of first water inlets and a plurality of second water inlets, the plurality of first water inlets being disposed on the side wall of the lens placement slot, the plurality of second water inlets being disposed at the bottom of the lens placement slot, and the first water inlets and the second water inlets being independently inlet.

[0011] In some embodiments, an automatic irrigation device is also included. The wastewater collection section has a water guide hole, and a filter screen is installed inside the water guide hole. The automatic irrigation device includes a water guide component and a water guide pipe. One end of the water guide pipe is connected to the water guide hole, and the other end is connected to the water inlet pipe. The water guide component is connected to the water guide pipe, and the water guide component is used to drive the filtered water in the water guide pipe into the water inlet pipe.

[0012] In some embodiments, a first air inlet is also included, which faces the extension direction of the lens placement slot, and an air pump interface is provided on the outer wall of the housing.

[0013] In some embodiments, a plurality of second air inlets are also included, which are evenly distributed at intervals on the side wall and bottom wall of the lens placement slot, and the lens placement slot is provided with a vent valve, which connects the lens placement slot to the outside of the housing when a preset pressure is reached in the lens placement slot.

[0014] In some embodiments, the housing also includes a lid hinged thereto, with a sealing ring between the lid and the housing.

[0015] In some embodiments, the outer wall of the housing is provided with an observation window for observing the rinsing status of the lens located in the lens placement slot.

[0016] The above description is merely an overview of the technical solution provided in this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other features and effects of this disclosure more obvious and understandable, the following are specific examples of the implementation methods of this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present disclosure; Figure 2 This is a perspective structural diagram of the lens placement slot and wastewater collection section disclosed herein; Figure 3 This is a schematic diagram of the lens placement slot and observation window of this disclosure.

[0020] Explanation of reference numerals in the attached figures: 1-Box body; 11-Box cover; 12-Observation window; 2-Placement slot; 21-Lens placement slot; 3-Water inlet; 31-First water inlet; 32-Second water inlet; 4-Water outlet; 5-Water inlet pipe; 6-Wastewater collection section; 61-Water guide hole; 7-Recycling pipe; 8-Water guide component; 9-Water guide pipe; 100-First air inlet; 200-Second air inlet. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and foregoing description of the drawings of this disclosure are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this disclosure, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0027] In the description of the embodiments of this disclosure, the technical terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated, or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0028] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0029] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0030] Currently, bedside pretreatment of flexible endoscopes has strict specifications. After the procedure, they must be immediately soaked in endoscope-specific cleaning enzymes to effectively remove biofilm from the lumen and reduce the risk of infection. However, the cleaning and disinfection equipment currently available to achieve this standard procedure is all fixed in dedicated tanks or workstations in hospital endoscopy centers. These are bulky, dependent on fixed water and electricity supplies, and completely lack portability.

[0031] When doctors need to travel for consultations or perform gastrointestinal endoscopy outside the hospital, they cannot take these devices with them. After the procedure, there are neither soaking containers nor a suitable environment for immediately using endoscope-specific enzyme solutions. They can only perform a simple wipe of the endoscope's outer surface or rinse the lumen with water. However, simple physical wiping and rinsing cannot replace the biofilm-breaking and removal effect of enzyme soaking. Biofilms easily form and firmly adhere to the inner wall of the lumen within a short time. Especially after receiving infected patients, if enzyme soaking is not performed immediately, the formed biofilm, even if subsequently sterilized according to standard procedures upon return to the hospital, is difficult to completely remove. This significantly increases the risk of cross-infection and also makes these expensive instruments more susceptible to damage due to the lack of timely and standardized handling.

[0032] Based on this, this disclosure provides a pretreatment box for gastrointestinal endoscopes. The box integrates a lens placement slot, a water inlet pipe, a pressurizing component, and a wastewater collection unit into a closed box structure that can be carried by a single person. After field operations, the endoscope lens is placed in the lens placement slot 21. At this time, the groove structure of the lens placement slot ensures that the lens is completely submerged in liquid. With proper configuration, a special cleaning enzyme solution for endoscopes is connected to the water inlet pipe. After the inlet is turned on, the enzyme solution enters the lens placement slot through the water inlet hole, causing the liquid level in the slot to rise and submerge the outer surface of the lens and the inlet of the lumen. After the pressurizing component adjusts the water inlet pressure, the enzyme solution enters the lumen of the lens at a certain flow rate, filling the lumen and continuously renewing the liquid inside. Used liquid is discharged into the wastewater collection unit through the outlet hole along the recovery pipe, creating a continuous flushing state within the slot, ensuring that both the outer surface of the lens and the inside of the lumen are soaked and perfused with the enzyme solution. Under this irrigation condition, the immersion time of the enzyme solution on the inner wall of the endoscope lens lumen can be controlled according to the standard requirements, so that the enzyme solution immersion operation can be completed on-site outside the hospital.

[0033] The following is a detailed description of the gastrointestinal endoscopy pretreatment box through specific embodiments: Reference Figures 1 to 3 As shown, this disclosure provides a gastrointestinal endoscopy pretreatment box, including a box body 1; a plurality of placement slots 2 disposed inside the box body 1, the plurality of placement slots 2 having at least one lens placement slot 21, the wall of the lens placement slot 21 being provided with a water inlet 3 and a water outlet 4, and in the rinsing state, the rinsing liquid flows in through the water inlet 3 and flows out through the water outlet 4; a water inlet pipe 5 connected to the water inlet 3, the water inlet pipe 5 being provided with a pressure boosting component, the pressure boosting component being used to adjust the water inlet pressure of the lens placement slot 21; and a wastewater collection unit 6 disposed inside the box body 1, the wastewater collection unit 6 being connected to the water outlet 4 through a recovery pipe 7, and the wastewater collection unit 6 being used to collect the wastewater discharged from the lens placement slot 21.

[0034] The box 1 disclosed herein is the outer shell structure of a gastrointestinal endoscope pretreatment box, used to house the internal components and provide overall encapsulation for carrying out trips. For example, the box is rectangular, but not limited to cubes, cuboids, etc., or circular or polygonal boxes.

[0035] The placement slot 2 is a recessed structure inside the housing 1 used to insert and fix various components of the gastrointestinal endoscope, such as a handle placement slot, a light source connector placement slot, and a tubing placement slot. The lens placement slot 21 is a slot within the placement slot 2 specifically designed to accommodate the gastrointestinal endoscope lens section (the part requiring pre-processing), and the internal contour of the placement slot 2 matches the shape of the lens section. Specifically, the body of the lens placement slot 21 is a slot-shaped structure with an upper opening. The side walls and bottom walls of the slot enclose a space to accommodate the lens section. A water inlet 3 and a water outlet 4 are located on the side wall or bottom wall of the slot. The side of the top cover is connected to one edge of the slot opening via a hinge, allowing the top cover to be flipped open and closed relative to the slot around the hinge axis. An elastic sealing ring, made of silicone rubber, is provided around the circumference where the top cover engages with the slot opening, and fits against the end face of the slot opening when the top cover is closed. A latch is provided on the other edge of the tank opening, and a corresponding hook is provided on the top cover. When the top cover is flipped to the closed position, the latch engages with the hook and tightens, pressing the sealing ring against the end face of the tank opening, forming a continuous sealing line. At this time, the internal space of the tank is only connected to the outside through the water inlet 3 and the water outlet 4. The joint surface between the top cover and the tank is blocked by the sealing ring, preventing gas and liquid from entering or exiting through this joint surface. During operation, the latch is opened and the top cover is flipped over. The endoscope lens is placed into the tank. After the lens is positioned in the tank, the top cover is flipped over to close and the latch is locked. The lens placement tank 21 is then converted into a sealed space, allowing irrigation or purging operations to be initiated. Alternatively, the body of the lens placement tank 21 can also be a tank-shaped structure with an upper opening. The tank opening is machined into a cylindrical interface with external threads on the outer wall of the interface. The top cover is a cap-shaped component that matches the interface. The inside of the cover has internal threads that mate with the external threads. A ring-shaped sealing gasket, made of fluororubber or silicone rubber, is located on the inner surface of the top wall of the top cover. When inserting the lens, the top cover is completely unscrewed from the slot interface. The lens is then placed into the slot through the opening, and the top cover is screwed onto the interface. As the threads tighten, the sealing gasket of the top cover is pressed against the end face of the slot interface and undergoes elastic deformation, forming an end-face seal. After the threads are tightened, the threaded pair between the top cover and the slot provides locking force, and the sealing gasket fills all gaps at the end face of the interface. The inside of the slot also forms a sealed space with only three water inlets and four water outlets. To remove the lens, simply loosen the top cover.

[0036] The inlet hole 3 is an opening formed in the wall of the lens mounting slot 21 for introducing rinsing liquid into the slot. The outlet hole 4 is an opening formed in the wall of the lens mounting slot 21 for draining the liquid from the slot.

[0037] The rinsing state refers to the dynamic liquid circulation condition in which rinsing liquid continuously flows into the lens placement tank 21 from the water inlet 3 and flows out from the water outlet 4. Under this condition, the liquid surface in the tank completely submerges the lens to be treated, realizing the immersion and rinsing of the lens. That is, the lens placement tank 21 is a liquid-containing space, and the liquid will not flow out from other parts except for the water outlet 4.

[0038] The water inlet pipe 5 is a liquid delivery pipe connected to the water inlet port 3, used to introduce external rinsing liquid into the lens placement tank 21. Furthermore, the water inlet pipe 5 can be equipped with an independent electrically controlled shut-off valve to control the water inlet flow rate.

[0039] The pressure booster is a pressure regulating component installed on the inlet pipe 5, used to increase or regulate the liquid pressure entering the lens placement tank 21, so that the rinsing liquid obtains a set flow rate and scouring force within the tube cavity. Specifically, the pressure booster of this disclosure can be a miniature diaphragm pump. Its main body is small in size, operates on DC 12V or DC 24V, and can be powered by a battery installed in the housing 1 or an external power adapter; the output pressure can cover a range of 2 kg to 11 kg, and the flow rate is approximately 1 liter to 5 liters per minute, meeting the liquid pressure requirements for tube cavity irrigation and circulation within the tank during the lens placement tank 21 rinsing process. The miniature diaphragm pump is installed on the inlet pipe 5, with the pump inlet connected to the liquid input end of the inlet pipe 5 via a pipe, and the pump outlet connected to the inlet hole 3 via a pipe. The pump body base is fixed to the mounting position on the bottom plate or side wall inside the housing 1 by bolts or clips, and the pump is connected to the pipe using a pagoda interface or a compression fitting interface. Alternatively, a miniature peristaltic pump can be used. Its overall structure is compact, making it suitable for integration into space-constrained devices; it supports DC brushed motor, brushless motor or stepper motor drive, and the working voltage can be selected as DC 12V or DC 24V; by matching with hoses of different inner diameters, the flow rate range can cover from a few milliliters per minute to about 70 milliliters per minute, and it can output higher pressure at low flow rates to meet the needs of delivering enzyme solutions into the lens lumen at a set flow rate.

[0040] The wastewater collection section 6 is a closed chamber located inside the housing 1, used to temporarily store used liquid discharged from the lens placement tank 21. The recovery pipe 7 is a pipe connecting the water outlet 4 and the wastewater collection section 6, used to transport the liquid flowing out of the lens placement tank 21 to the wastewater collection section 6.

[0041] Specifically, after a flexible endoscope is used outside the hospital, its outer surface and internal lumen need to be immediately soaked in an enzyme solution to prevent bacterial biofilm adhesion. Current cleaning workstations are fixed in the hospital's endoscopy center and lack portability, making them unsuitable for doctors to take with them. When doctors complete gastrointestinal endoscopy procedures outside the hospital, there is a lack of on-site containers capable of holding the endoscope and providing fluid circulation for soaking. Doctors can only perform surface wiping or lumen flushing, which does not allow the enzyme solution to remain immersed in the lumen for a sufficient period. Biofilms form rapidly due to the lack of effective enzyme decomposition. Especially after treating infected patients, the biofilm formed on the lumen wall adheres firmly. Even if the endoscope is transported back to the hospital for subsequent sterilization, the attached biofilm is difficult to completely remove due to the loss of the immediate enzyme immersion window, increasing the risk of cross-infection. The endoscope's lifespan is also shortened due to repeated erosion from residual biofilm. Furthermore, simple soaking is insufficient to decompose the biofilm to meet treatment standards.

[0042] The gastrointestinal endoscope pretreatment box provided in this solution integrates a lens placement slot 21, a water inlet pipe 5, a pressurizing component, and a wastewater collection unit 6 into a sealed box structure that can be carried by a single person. After field operations, the endoscope lens is placed in the lens placement slot 21, where the recessed structure ensures the lens is completely submerged in liquid. After configuration, a special endoscope cleaning enzyme solution is connected to the water inlet pipe 5. Once the inlet is turned on, the enzyme solution enters the lens placement slot 21 through the water inlet 3, causing the liquid level to rise and submerge the outer surface of the lens and the inlet of the lumen. After the pressurizing component adjusts the inlet pressure, the enzyme solution enters the lens lumen at a certain flow rate, filling and continuously renewing the liquid within the lumen. Used liquid is discharged into the wastewater collection unit 6 through the outlet 4 and the recovery pipe 7, creating a continuous flushing state within the tank, ensuring that both the outer surface of the lens and the inside of the lumen are soaked and perfused with the enzyme solution. In this irrigation state, the immersion time of the enzyme solution on the inner wall of the endoscope lumen can be controlled according to standard requirements, allowing the enzyme immersion operation to be completed on-site outside the hospital. This process transforms enzyme immersion from relying on a fixed cleaning workstation to being carried out on-site using a portable unit, enabling the immediate enzyme immersion required by standards to be performed in an off-site environment, filling the technological gap of lacking immediate immersion devices in off-site environments. At this time, the enzyme solution fully decomposes the inner wall of the endoscope lumen before biofilm formation, preventing biofilm adhesion. Subsequent sterilization processes deal with an endoscope surface free of biofilm, controlling the risk of infection. Simultaneously, because standardized immersion is completed on-site, the endoscope is no longer in a state of gradual biofilm adhesion during transportation and while awaiting in-hospital processing. The cleanliness of the inner wall of the lumen is consistent with the state after bedside pretreatment in the hospital, thus reducing the endoscope wear rate.

[0043] It should be noted that this solution includes a pressure booster on the inlet pipe 5, which applies a set pressure to the enzyme solution entering the lens placement tank 21. During irrigation, the pressure output by the booster causes the enzyme solution to enter the lens placement tank 21 through the inlet hole 3 with a dynamic pressure higher than the hydrostatic pressure. The liquid's kinetic energy is converted into flow velocity within the tank, driving the enzyme solution to flow along the outer surface of the lens section while simultaneously entering the lens section's cavity at a certain speed. The enzyme solution entering the cavity carries pressure energy, forming a directional flow within the cavity. The flow velocity of the liquid at various points within the cavity reduces the thickness of the diffusion boundary layer between the enzyme solution and the cavity wall, increasing the mass transfer rate of enzyme molecules from the main flow path to the biofilm on the wall. The flowing liquid within the cavity continuously carries away consumed enzyme solution and debris detached from the biofilm along the flow direction, while unconsumed fresh enzyme solution continuously replenishes the cavity, contacting the biofilm adhesion surface, thus maintaining the enzyme solution concentration within the cavity within an effective range throughout the irrigation process.

[0044] Enzymatic decomposition of biofilms cannot be accomplished solely through the chemical interaction between the enzyme solution and the biofilm. If the fragments produced after the enzyme solution decomposes the biofilm matrix are not detached from the inner wall of the tube and discharged, these residual fragments will prevent the enzyme solution from continuing to contact the underlying biofilm. The fluid pressure provided by the pressurization unit generates a fluid shear force within the tube, acting on the biofilm attachment surface. This shear force, in conjunction with the enzymatic decomposition, peels the loosened biofilm fragments from the tube wall and suspends them in the flowing liquid, allowing them to be discharged from the tube with the liquid. Without the pressure provided by the pressurization unit to drive the flow, static water immersion alone cannot generate effective fluid shear force. Biofilm fragments continue to adhere, preventing the enzyme solution from penetrating the fragment layer to contact the underlying intact biofilm. Immersion within the specified time only decomposes the surface layer of the biofilm, leaving a risk of residual biofilm at the bottom layer after subsequent sterilization.

[0045] In some embodiments, the housing 1 is further provided with a plurality of shock-absorbing protection devices, which are respectively disposed in a plurality of placement slots 2.

[0046] In this embodiment, the shock absorption protection device is a component installed inside the placement slot 2 to absorb and buffer external impact forces. After the various components of the gastrointestinal endoscope are placed into the placement slot 2, the component isolates the external force from the housed components through elastic deformation or damping, preventing vibration and collision during transportation from being directly transmitted to the precision structure of the gastrointestinal endoscope.

[0047] Specifically, as precision optical and electronic instruments, gastroscopes and colonoscopes are prone to optical component displacement, circuit breakage, or tube deformation when subjected to external impacts. This disclosure integrates the lens placement slot 21, water inlet pipe 5, pressurizing component, and wastewater collection unit 6 into a closed box structure, enabling on-site enzymatic immersion irrigation outside the hospital. However, during transport, the box 1 needs to withstand continuous vibration and accidental drop impacts from handling and vehicle transport. If the placement slot 2 is merely a rigid groove, the hard contact between the slot and the contained components will directly transmit external impacts to the various components of the gastroscope and colonoscope, causing damage during transport and rendering the device unusable upon arrival at the operating site.

[0048] This disclosure includes shock-absorbing protection devices installed in multiple placement slots 2 within the housing 1. When the endoscope lens and other components are placed in their respective slots 2, the shock-absorbing protection devices are located between the components and the slot walls. These devices absorb high-frequency vibration energy during transport through the deformation of the elastic material and suppress the swaying amplitude of the components within the slots through damping. When an external impact force reaches the shock-absorbing protection device, the impact energy is dissipated by the device, and the actual force transmitted to the endoscope components is reduced to below a safe threshold. During the irrigation process, minor pressure fluctuations generated by the irrigation operation on the housing 1 are also buffered by the shock-absorbing protection devices, preventing the liquid flow during irrigation from causing resonance or displacement of the components within the slots.

[0049] Specifically, the shock-absorbing and protective device can be an EVA foam pad. The outer contour of the pad matches the inner wall contour of the placement slot 2, and the inner cavity contour of the pad matches the outer contour of the gastrointestinal endoscope component it accommodates. The pad is 3 mm to 8 mm thick and is fixed to the inner wall of the placement slot 2 by friction fit or adhesive backing, completely separating the rigid wall of the placement slot 2 from the component. Alternatively, a combination of micro-springs and a support plate can be used. The support plate is a lightweight plastic or thin metal sheet, with an arc-shaped or groove-shaped positioning surface on its upper surface that matches the outer contour of the gastrointestinal endoscope component it accommodates. The micro-springs are stainless steel helical compression springs. The lower ends of multiple micro-springs are fixed to the upper surface of the bottom of the placement slot 2, and the upper ends support the lower surface of the support plate. The springs are evenly distributed at three or more points on the bottom of the slot. After the gastrointestinal endoscope component is placed on the support plate, the weight of the component causes the springs to pre-compress, and the support plate floats above the bottom of the placement slot 2. During transport, the impact from the top and bottom of the housing 1 causes the spring to compress further. The spring stores elastic potential energy and releases it, causing the support plate to reset. Horizontal impacts are absorbed by the lateral bending deformation of the spring. Alternatively, the shock absorption protection device is a miniature airbag installed on the inner wall of the placement slot 2. The airbag is made of thermoplastic polyurethane film heat-sealed, with a thickness of less than 1 mm when uninflated, and is attached to the inner surface of the side and bottom walls of the placement slot 2. Each airbag has an air nozzle, which passes through a through hole in the wall of the placement slot 2 and connects to a miniature air pump or manual air valve inside the housing 1. Before the gastrointestinal endoscope components are placed in the placement slot 2, the airbags are in an uninflated, flat state, maximizing the effective internal size of the placement slot 2, allowing the components to be inserted without obstruction. After the components are placed, air is injected into the airbags using the air pump or manual airbag inflation. The airbags expand, and the inflated airbag surface presses inward against the outer surface of the components. Multiple airbags clamp the components from different directions. The air pressure inside the airbag is preset according to the weight of the component and the transportation conditions. The inflation pump can automatically stop after the air pressure reaches the set value. During transportation, external impacts cause the gas inside the airbag to be further compressed and expanded. The impact energy is absorbed through the gas compression deformation, reducing the impact force on the component.

[0050] It should be noted that, in order to better rinse and soak the pretreatment section of the gastrointestinal endoscope, the shock-absorbing protection device in the lens placement slot 21 can be arranged differently from other placement slots 2. For example, in the above embodiment, only the head and tail sides of the part to be treated are fixed, so that the part to be treated is stably placed in the lens placement slot 21 for easy soaking and rinsing.

[0051] In some embodiments, the shock-absorbing protection device is a plurality of elastic protrusions provided on the inner wall of the placement groove 2.

[0052] In this embodiment, the elastic protrusion is a specific structural form of the shock absorption and protection device. It is a protrusion made of a material with elastic deformation capability. Multiple elastic protrusions are fixed on the inner wall of the placement groove 2 in an array or distributed manner. The protrusions extend toward the space inside the groove. When the gastrointestinal endoscope component is placed into the placement groove 2, the elastic protrusions contact the surface of the component before the groove wall and generate compression deformation.

[0053] Specifically, shock-absorbing protection devices are installed in multiple placement slots 2 to address the problem of damage to gastrointestinal endoscope components caused by vibration and impact during the transport of the housing 1. The shock-absorbing protection devices are implemented as multiple elastic protrusions on the inner wall of the placement slots 2. This structure absorbs impact energy and fixes the components by selecting the material of the elastic protrusions, setting them, and cooperating with the endoscope components to be protected.

[0054] The elastic protrusions are made of silicone rubber or thermoplastic polyurethane elastomer, which undergoes elastic deformation when compressed and returns to its original shape after the external force is removed. They possess stable damping characteristics and chemical corrosion resistance, and will not degrade or release contaminants when in contact with endoscope-specific cleaning enzyme solutions. Multiple elastic protrusions are arranged at intervals along the inner circumferential surface of the wall and the inner surface of the bottom of the placement tank 2. The height direction of the protrusions is consistent with the normal direction of the tank wall, and the ends of the protrusions point towards the center area of ​​the placement tank 2. Gaps are left between adjacent elastic protrusions, forming air channels when the component is not inserted, allowing the rinsing liquid to flow within the placement tank 2 during rinsing.

[0055] When the gastrointestinal endoscope component is inserted into the placement slot 2, the outer surface of the component first contacts the end of the elastic protrusion. As the insertion depth increases, the number of contacting elastic protrusions increases, and each protrusion is compressed between the outer surface of the component and the rigid slot wall. The compressed elastic protrusions store elastic potential energy and apply a rebound force to the outer surface of the component. The resultant force of the rebound force points towards the center of the placement slot 2, constraining the component to the preset position in the placement slot 2. Since the amount of compression deformation of the elastic protrusions dynamically adjusts with changes in external force, when vibration occurs, the elastic protrusions convert kinetic energy into heat energy through deformation and dissipate it. The impact force is significantly attenuated after being transmitted from the slot wall to the elastic protrusions, and the impact energy transmitted to the component is reduced to within the structural tolerance range of the component.

[0056] In some embodiments, a row of water outlet holes 4 is provided on the opposite sidewalls of the lens placement slot 21, and the two rows of water outlet holes 4 are arranged opposite to each other.

[0057] In this embodiment, the sidewalls are two opposing vertical or inclined walls parallel to the axis of the lens section within the enclosure surface of the lens placement slot 21. A row of water outlets 4 refers to a linear array of multiple water outlets 4 arranged at a predetermined interval along a certain direction of the sidewall, with the center line connecting the centers of all water outlets 4 in the same row forming a straight line. "Relative arrangement" means that two rows of water outlets 4 are located on two opposing sidewalls of the lens placement slot 21, and their positions within the slot space correspond to each other.

[0058] Specifically, in the rinsing state, the rinsing liquid flows into the lens placement tank 21 through the inlet hole 3 and flows out through the outlet hole 4, achieving enzyme immersion and irrigation of the lens. During the rinsing process, the flow path and discharge efficiency of the enzyme solution within the lens placement tank 21 directly affect the uniformity of contact between the outer surface of the lens and the interior of the tube with the fresh enzyme solution. If the outlet hole 4 is only located on one side of the tank or at a single point on the bottom, a flow dead zone will be created when the liquid in the tank converges towards the outlet hole 4. The enzyme solution on the surface area of ​​the lens located in the flow dead zone will be replaced slowly, and the area around the tube opening may be in contact with consumed enzyme solution for a long time, resulting in inconsistent biofilm decomposition conditions on different surfaces of the lens.

[0059] In this embodiment, a row of water outlet holes 4 is provided on each of the two opposite side walls of the lens placement tank 21, with the two rows of water outlet holes 4 arranged opposite each other. When the rinsing process is initiated, the inlet hole 3 injects enzyme solution into the tank, causing the liquid level to rise and submerge the lens. As the liquid level continues to rise, the liquid flows out simultaneously from the two rows of opposite water outlet holes 4, forming a bidirectional flow pattern from the location of the inlet hole 3 to the rows of water outlet holes 4 on both sides. The flow of liquid in the tank covers all surfaces of the lens, and the two rows of opposite water outlet holes 4 make the flow distribution of liquid in the transverse cross section of the tank tend to be symmetrical, and the liquid exchange in the tank occurs synchronously in all areas of the lens.

[0060] Through two rows of oppositely arranged water outlets 4, the lens placement tank 21 forms a symmetrical double-sided drainage path during rinsing. The enzyme solution in the tank covers the entire outer surface of the lens and penetrates the interior of the tube, eliminating the flow dead zone that may be caused by single-sided drainage. This ensures that the enzyme solution concentration and renewal rate on all surfaces of the lens are consistent. When performing enzyme solution soaking on-site outside the hospital, the biofilm decomposition conditions inside and outside the lens tube are uniform. The biofilm inside the tube is fully decomposed and removed by the enzyme solution within the specified time, and there are no residual biofilm attachment points due to local enzyme solution retention.

[0061] In some embodiments, the water inlet 3 includes a plurality of first water inlets 31 and a plurality of second water inlets 32. The plurality of first water inlets 31 are disposed on the side wall of the lens placement groove 21, and the plurality of second water inlets 32 are disposed on the bottom of the lens placement groove 21, and the first water inlets 31 and the second water inlets 32 are independently inlet water.

[0062] In this embodiment, the first water inlet 31 is one type of water inlet 3, located on the side wall of the lens placement groove 21, and is used to inject rinsing liquid into the groove from the side, allowing the liquid to enter the groove space from the side of the lens section. The second water inlet 32 ​​is another type of water inlet 3, located at the bottom of the lens placement groove 21, and is used to inject rinsing liquid into the groove from the bottom, allowing the liquid to enter the groove space from below the lens section. Independent water inlet means that the first water inlet 31 and the second water inlet 32 ​​are each connected to an independent water inlet branch pipe, and the opening, closing, and pressure regulation of the two water inlets can be controlled separately without interference.

[0063] Specifically, this disclosure involves injecting enzyme solution through the inlet hole 3 within the lens placement tank 21 during the rinsing process to soak and irrigate the lens section. The outlet holes 4 are arranged in two rows on opposite sidewalls, forming a symmetrical drainage path. Based on this structure, after the lens section is placed in the lens placement tank 21, a gap space is formed between its outer surface and the tank wall, with the inlet and outlet of the lumen corresponding to different spatial orientations. If the inlet hole 3 is only a single set of holes at a single location, the directionality of the liquid flow within the tank is fixed, resulting in a difference in the liquid exchange rate between the water-facing and back-facing surfaces of the lens section's outer surface. Consequently, the liquid flow velocities encountered by the inlet and outlet regions of the lumen are also different. The interior of the lens section's lumen and the lumen opening area are areas prone to biofilm adhesion, requiring liquid to enter the lumen at an effective flow rate for irrigation. The outer surface around the lumen opening requires rinsing through circulating flow within the tank; the liquid supply requirements for these two types of areas differ.

[0064] In this embodiment, the water inlet 3 is divided into multiple first water inlets 31 and multiple second water inlets 32, respectively located on the side wall and bottom of the lens placement tank 21, with two independent water inlets. During rinsing, the water inlet branch pipe connected to the first water inlet 31 injects enzyme solution into the tank. The liquid enters the tank space from the side wall direction, flowing in the gap between the outer surface of the lens and the side wall, forming a circumferential flow around the lens, flushing the outer surface of the lens and the lateral opening area of ​​the tube. Simultaneously, the water inlet branch pipe connected to the second water inlet 32 ​​injects enzyme solution from the bottom of the tank. The liquid rises from bottom to top within the tank, flowing directly to the bottom end of the lens and the lower opening of the tube. Some liquid enters the tube during the rising process, forming a directional flow from one end of the tube to the other. The two water inlets are controlled separately, and the flow rate distribution between the side wall water inlet and the bottom water inlet can be adjusted according to the specific lens model and tube structure. The sidewall water inlet continuously refreshes the enzyme solution on the outer surface of the lens at a lower pressure, while the bottom water inlet pressurizes the enzyme solution into the lumen at a pressure adapted to the inner diameter of the lumen, so that the lumen obtains an irrigation flow rate independent of the outer surface circulation.

[0065] In some embodiments, an automatic irrigation device is also included. The wastewater collection part 6 has a water guide hole 61, and a filter screen is provided inside the water guide hole 61. The automatic irrigation device includes a water guide element 8 and a water guide pipe 9. One end of the water guide pipe 9 is connected to the water guide hole 61, and the other end is connected to the water inlet pipe. The water guide element 8 is connected to the water guide pipe 9, and the water guide element 8 is used to drive the filtered water in the water guide pipe 9 into the water inlet pipe 5.

[0066] In this embodiment, the water guide hole 61 is a through hole formed on the wall of the wastewater collection section 6, serving as an outlet for the temporarily stored liquid in the wastewater collection section 6 to be discharged outwards. The filter screen is a mesh filter component disposed within the water guide hole 61, used to trap tissue debris and particulate impurities carried in the liquid discharged from the lens placement tank 21 into the wastewater collection section 6, allowing filtered water to pass through the filter screen. The automatic irrigation device is a component assembly that realizes the automatic circulation and transportation of liquid from the wastewater collection section 6 to the water inlet pipe 5, allowing the filtered enzyme solution to re-enter the lens placement tank 21 in the irrigation state, forming a closed liquid circulation path.

[0067] The water guide component 8 is a part that provides the power for liquid transport in the automatic irrigation device. Specifically, it can be a miniature water pump or a peristaltic pump. It is connected to the water guide pipe 9 and is used to pressurize the filtered water in the wastewater collection section 6 and drive it to flow towards the inlet pipe 5. The water guide pipe 9 is a liquid transport pipe that connects the water guide hole 61 and the inlet pipe 5. One end is connected to the water guide hole 61, and the other end is connected to the inlet pipe 5, forming a water transport channel for liquid to return from the wastewater collection section 6 to the inlet pipe 5.

[0068] Specifically, during the rinsing process, the rinsing liquid enters the lens placement tank 21 through the inlet pipe 5, soaks and irrigates the lens section, and then flows through the outlet hole 4 along the recovery pipe 7 into the wastewater collection unit 6, where the used liquid is temporarily stored. In off-site operating environments, the total amount of prepared endoscope-specific cleaning enzyme solution is limited. If the enzyme solution only flows in one direction during rinsing and is then stored as wastewater, the amount of enzyme solution required for a single operation is large, and the continuous discharge of liquid into the wastewater collection unit 6 will rapidly deplete its capacity, limiting the continuous rinsing time. The enzymatic hydrolysis of the biofilm within the lens section lumen requires the enzyme solution to maintain an effective concentration and be continuously renewed within the lumen. If rinsing is interrupted due to limitations in the amount of enzyme solution carried or the wastewater capacity, the renewal of the enzyme solution within the lumen stops, increasing the risk of incomplete biofilm decomposition.

[0069] In this embodiment, an automatic irrigation device is added between the wastewater collection unit 6 and the inlet pipe 5. A filter screen is installed inside the water guide hole 61 of the wastewater collection unit 6. When the used liquid discharged into the wastewater collection unit 6 flows out of the water guide hole 61, tissue debris and particulate impurities carried out by the lens section are intercepted by the filter screen. The liquid passing through the filter screen becomes filtered water after the removal of particulate impurities. This filtered water still contains unconsumed enzyme components. One end of the water guide pipe 9 is connected to the water guide hole 61, and the other end is connected to the inlet pipe 5. The water guide component 8 is connected to the water guide pipe 9. In the irrigation state, the water guide component 8 is activated, generating negative pressure in the water guide pipe 9, which draws the filtered water in the wastewater collection unit 6 out through the water guide hole 61 and the filter screen, pressurizes it, and transports it to the inlet pipe 5 along the water guide pipe 9. After the filtered water enters the inlet pipe 5, it mixes with the fresh enzyme solution added in the inlet pipe 5 and enters the lens placement tank 21 again through the inlet hole 3 to perform the next round of soaking and irrigation on the lens. After irrigation, the discharged liquid returns to the wastewater collection unit 6 through the outlet and recycling path, forming an automatic circulation of liquid from the lens placement tank 21 through the wastewater collection unit 6 and back to the inlet pipe 5.

[0070] The automated perfusion device enables the recycling of enzyme solution within the gastrointestinal endoscope pretreatment chamber, extending the effective irrigation time of a single batch of prepared enzyme solution and reducing the dependence on the total amount of enzyme solution carried and the capacity of the wastewater collection unit during outpatient procedures. When performing standard soaking procedures on-site, the endoscope lumen receives a continuous flow of liquid containing active enzymes, ensuring the irrigation process is not interrupted by external resource limitations. The biofilm within the lumen is thoroughly decomposed and removed in the continuously replenished enzyme solution.

[0071] In some embodiments, a first air inlet 100 is also included, the first air inlet 100 is oriented toward the extension direction of the lens placement slot 21, and the first air inlet 100 is provided with an air pump interface on the outer wall of the housing 1.

[0072] In this embodiment, the first air inlet 100 is a channel formed on the housing 1 for introducing airflow into the lens placement slot 21. The outlet of the channel points to the internal space of the lens placement slot 21, and gas supplied by an external air source can be introduced into the slot through the hole.

[0073] The extension direction of the lens placement slot 21 refers to the direction of its length extension axis within the internal space of the housing 1, which is consistent with the direction of the main axis of the lens section when the slot accommodates the lens section. The air pump interface is a standardized connection port located at the outer wall port of the first air inlet 100, used to connect to an external air pump output, introducing compressed gas generated by the air pump through the first air inlet 100. The air pump is an external device that generates compressed gas, providing an airflow at a set pressure to the first air inlet 100 through the air pump interface.

[0074] Specifically, during the rinsing process, the lens is soaked and irrigated with enzyme solution through the inlet and outlet structures in the lens placement tank 21. After the rinsing operation is completed, the enzyme solution supply is stopped, and the remaining liquid in the tank and inside the lens cavity is discharged into the wastewater collection unit 6 through the outlet hole 4. Due to the small inner diameter of the lens cavity, some droplets will remain inside the cavity and at the junction of the cavity opening and the tank wall. Gravity drainage alone cannot completely drain the residual liquid in the cavity in a short time. The residual liquid remaining in the cavity will dilute the disinfectant used in subsequent disinfection steps. At the same time, biofilm fragments that decompose and detach in the residual liquid will form secondary adhesion if they re-attach to the wall and dry.

[0075] In this embodiment, a first air inlet 100 is added to the housing 1, with the outlet of the first air inlet 100 facing the extension direction of the lens placement slot 21. An air pump interface is provided at a corresponding position on the outer wall of the housing 1. After the rinsing operation is completed and the enzyme solution supply stops, the liquid level in the slot drops below the outlet 4. At this time, an external air pump is connected to the air pump interface, and the air pump is started to output compressed gas. The airflow enters the lens placement slot 21 through the first air inlet 100, and the airflow direction is consistent with the extension direction of the lens placement slot 21, sweeping the space inside the slot and the surface of the lens along the axial direction of the lens. After the airflow enters the lens placement slot 21, it flows along the gap between the outer surface of the lens and the slot wall, and enters the inlet of the lens cavity. It flows through the cavity along the axial direction, pushing the residual liquid in the cavity out of the cavity outlet. The residual liquid blown out and carried out by the airflow is discharged through the outlet 4 and enters the wastewater collection unit 6. The airflow purging process can continue for a set time until no visible droplets are discharged from the outer surface of the lens and the cavity.

[0076] If used with an automatic irrigation device, the enzyme solution can be circulated and irrigated for a certain period of time in the irrigation state, and then the operation of the water guide 8 can be stopped and switched to the airflow purging mode. After the purging is completed, the water guide 8 can be restarted to resume the circulation and irrigation of the enzyme solution, forming a cycle of alternating soaking and irrigation with airflow purging.

[0077] The first air inlet 100 and the air pump interface allow compressed gas to be introduced into the gastrointestinal endoscope pretreatment box after enzyme soaking and rinsing to purge the lens section with airflow, expelling residual liquid from the lumen and the gaps within the tank. After standardized soaking at the hospital site, the inside and outside surfaces of the lens section are dried by airflow, with no residual liquid remaining. Subsequent disinfection operations are not affected by residual liquid, and secondary adhesion of biofilm fragments caused by residual liquid drying is avoided.

[0078] In some embodiments, a plurality of second air inlets 200 are also included. The plurality of second air inlets 200 are evenly distributed at intervals on the side wall and bottom wall of the lens placement slot 21, and the lens placement slot 21 is provided with a vent valve. When the preset pressure is reached in the lens placement slot 21, the vent valve enables the lens placement slot 21 to communicate with the outside of the housing 1.

[0079] In this embodiment, the second air inlet 200 is a plurality of air inlet channels formed on the side wall and bottom wall of the lens placement slot 21. The plurality of second air inlets 200 are arranged in a spaced and evenly distributed manner on the slot wall, and are used to introduce airflow into the lens placement slot 21 from multiple directions.

[0080] Evenly spaced means that multiple second air inlets 200 are arranged at basically equal intervals on the plane of the side wall and bottom wall, and the distribution of each hole on its respective wall surface covers all areas of the wall surface, with the distance between the holes being consistent or nearly consistent.

[0081] The vent valve is a valve device installed in the lens placement slot 21. This valve remains closed when the internal air pressure of the lens placement slot 21 is lower than a preset pressure, isolating the lens placement slot 21 from the outside of the housing 1. When the air pressure inside the lens placement slot 21 rises to the preset pressure value due to continuous gas flow, the vent valve automatically opens, connecting the internal space of the lens placement slot 21 to the outside of the housing 1, releasing excess gas and reducing the pressure inside the slot. The preset pressure is a set pressure threshold for the vent valve to open; this value is lower than the locking force of the cover plate of the lens placement slot 21 and the structural tolerance limit of the slot.

[0082] Specifically, in the rinsing state, enzyme solution soaking and rinsing are completed through the water inlet and outlet structures of the lens placement tank 21. After rinsing, airflow is introduced through the first air inlet 100 and the air pump interface to purge residual liquid from the outer surface of the lens and the inside of the tube. During the rinsing state, both the water inlet 3 and the water outlet 4 of the lens placement tank 21 are open and flowing, and the pressure inside the tank is balanced. When switching to the airflow purging mode, the water inlet 3 and the water outlet 4 of the lens placement tank 21 may form a liquid seal due to the surface tension of the residual liquid film, or they may be partially closed. At this time, the lens placement tank 21 forms a nearly closed space with only air intake and no sufficient air outlet. If compressed gas is continuously introduced through only the first air inlet 100, the gas accumulation inside the tank will cause the air pressure to rise rapidly. The cover of the lens placement tank 21 is fixed to the tank body by a locking or snap-fit ​​structure. When the air pressure inside the tank exceeds the locking force of the cover, the cover may be forced open by the air pressure. After the cover is detached, the lens is exposed, the airflow purging is interrupted, and other components inside the housing 1 may be impacted.

[0083] In this embodiment, multiple evenly spaced second air inlets 200 are provided on the sidewalls and bottom wall of the lens placement slot 21, and a vent valve is provided on the lens placement slot 21. In the airflow purging mode, compressed gas supplied by an external air pump simultaneously enters the lens placement slot 21 through the first air inlet 100 and the multiple second air inlets 200. The first air inlet 100 inputs airflow along the extension direction of the lens placement slot 21, and the multiple second air inlets 200 input airflow from all directions of the sidewalls and upwards from the bottom wall. The multi-directional airflow overlaps in the slot, covering various areas of the outer surface of the lens section, and enters various openings of the lens section cavity from different directions. The multi-directional airflow causes a through flow to form inside the cavity, and the residual liquid in each section of the cavity is pushed to the outlet by the airflow from different directions.

[0084] As airflow continues to flow in, the air pressure inside the tank gradually increases. When the air pressure does not reach the preset pressure of the vent valve, the vent valve remains closed, and the gas inside the tank is discharged from natural outlets such as the water outlet 4 and the tube outlet. When the exhaust capacity of the water inlet 3 and the water outlet 4 is insufficient to balance the intake air volume, and the air pressure inside the tank continues to rise to the preset pressure value, the vent valve automatically opens, connecting the internal space of the lens placement tank 21 with the external atmosphere of the housing 1. Excess compressed gas is directly discharged through the vent valve, and the air pressure inside the tank drops back below the preset pressure. The vent valve closes again after the air pressure falls below the preset pressure, maintaining a suitable purging air pressure level inside the tank. This process is automatically repeated during airflow purging, and the air pressure inside the tank is always kept below the preset pressure.

[0085] In some embodiments, the housing 1 further includes a cover 11 hinged thereto, and a sealing ring is provided between the cover 11 and the housing 1.

[0086] In this embodiment, the lid 11 is an openable and closable cover connected to the box body 1 via a hinge structure. The hinge allows the lid 11 to rotate about the hinge axis relative to the box body 1, thereby opening and closing. In the closed state, the lid 11 covers the upper opening of the box body 1, sealing the various placement slots 2, water inlet pipes 5, wastewater collection section 6, and the gastrointestinal endoscope components housed inside the box body 1 within the internal space of the box body 1.

[0087] The sealing ring is an annular elastic seal between the contact surfaces of the cover 11 and the housing 1. The material can be silicone rubber or EPDM rubber. When the cover 11 is closed and locked, the sealing ring is squeezed and undergoes elastic deformation, filling the gap between the contact surfaces of the cover 11 and the housing 1, forming an airtight and liquid-tight isolation from the external environment.

[0088] Specifically, the housing 1 integrates multiple placement slots 2, a lens placement slot 21, a water inlet pipe 5, a pressurizing component, and a wastewater collection unit 6, for performing enzyme immersion and perfusion operations on gastrointestinal endoscopes at the outpatient site. The housing 1 faces two environmental interaction scenarios during transport and outpatient operation: First, the housing 1 is exposed to the external environment, where dust, foreign objects, and airborne microorganisms may enter and contaminate the sterilized gastrointestinal endoscope components and pipe interfaces. Second, during the perfusion operation at the outpatient site, the enzyme solution in the lens placement slot 21 generates liquid splashes and aerosols during perfusion. If there is no enclosed structure above the housing 1, the splashing liquid containing enzyme solution and biofilm fragments may overflow, contaminating the surrounding environment. Simultaneously, external contaminants may fall into the lens placement slot 21, interfering with the perfusion process.

[0089] A lid 11 is hinged to the housing 1, and a sealing ring is provided between the lid 11 and the housing 1. During transport, the lid 11 is closed and locked, and the sealing ring is compressed on the mating surface between the lid 11 and the housing 1, forming a continuous sealing barrier around the upper opening of the housing 1. External dust, foreign objects, and airborne microorganisms cannot enter the interior of the housing 1 through the gaps in the mating surface. The gastrointestinal endoscope components and tubing interfaces contained in each placement slot 2 are kept in a closed space isolated from the outside throughout the transport process.

[0090] In some embodiments, the outer wall of the housing 1 is provided with an observation window 12, which is used to observe the rinsing status of the lens located in the lens placement slot 21.

[0091] In this embodiment, the observation window 12 is a transparent viewing window component disposed on the outer wall of the housing 1, made of a transparent material such as tempered glass or polycarbonate sheet. The window penetrates the wall thickness of the housing 1, with one side facing outwards for the operator to observe, and the other side facing the area inside the housing 1 where the lens placement slot 21 is located. This allows the operator to directly see the interior of the lens placement slot 21 through the observation window 12 without opening the cover 11. The lens refers to the endoscope lens section inserted into the lens placement slot 21. The rinsing state is a dynamic liquid circulation condition in which rinsing liquid continuously flows into the lens placement slot 21 from the inlet 3 and simultaneously flows out from the outlet 4. It should be noted that the lens placement slot 21 also has a top cover, which also needs to be made of a transparent material to achieve the purpose of the observation window.

[0092] Specifically, during the rinsing operation, the lid 11 is closed to prevent liquid containing biofilm fragments from splashing out of the chamber 1, while also isolating external contaminants. With the lid 11 closed, the rinsing process inside the lens placement tank 21 is sealed within the chamber 1, and the operator cannot directly observe the tank from the outside. Possible abnormalities during rinsing include: blockage of the inlet 3 or outlet 4 causing abnormal increases or decreases in the tank liquid level; displacement of the lens due to liquid flow impact during rinsing, causing it to detach from its preset fixed position; misalignment of the tube opening with the outlet 4 causing interruption of the tube flow; and failure of the enzyme solution to completely submerge the lens portion requiring immersion. If these abnormalities are not detected during the closed rinsing period, and the operator only discovers the incomplete rinsing when opening the lid 11 after the required rinsing time has elapsed, the required enzyme immersion time will have to be recalculated, or the actual immersion effect will not meet the standard, increasing the risk of unreliable biofilm removal.

[0093] In this embodiment, an observation window 12 is provided on the outer wall of the housing 1. The installation position of the observation window 12 corresponds to the opening position of the lens placement slot 21, allowing the operator to directly view the internal space of the lens placement slot 21 through the observation window 12. When the rinsing operation is started and the lid 11 is closed, the operator can visually confirm the following states through the observation window 12: whether the liquid level in the tank has risen to the preset height and completely submerged the lens; whether the flow of liquid from the inlet hole 3 and the outlet hole 4 is continuous; whether the lens remains in the preset fixed position in the tank without being pushed off by the liquid flow; whether the direction of the tube opening corresponds to that of the outlet hole 4 and the flow signs of liquid entering and exiting the tube opening are visible; and whether there are abnormal bubbles or color changes on the liquid surface. If the operator finds any abnormalities such as the liquid level not meeting the standard, the flow interruption, or the lens displacement through the observation window 12, the rinsing can be stopped immediately, the lid 11 opened for adjustment, the rinsing restarted after adjustment, and the timing continued after confirming that the status is normal, ensuring that the required soaking time is accumulated under effective rinsing conditions.

[0094] The observation window 12 allows the operator to obtain real-time visual confirmation of the rinsing status inside the lens placement slot 21 while the lid 11 is closed during the closed rinsing process. Key states such as liquid level, flow, and component position during the rinsing process can be directly monitored by the operator through the observation window 12. Abnormalities during rinsing can be detected and corrected immediately, avoiding the problem of discovering ineffective rinsing and non-compliant soaking time when the lid 11 is opened after the closed rinsing is completed. This ensures that the enzyme soaking performed on-site outside the hospital is effective throughout the entire process, and that biofilm is reliably removed within the specified soaking time.

[0095] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pretreatment box for gastrointestinal endoscopes, characterized in that, include: Box; Multiple placement slots are provided inside the housing. Each of the multiple placement slots has at least one lens placement slot. The wall of the lens placement slot is provided with a water inlet and a water outlet. When the lens placement slot is in the rinsing state, the rinsing liquid flows in through the water inlet and flows out through the water outlet. A water inlet pipe is connected to the water inlet hole. The water inlet pipe is equipped with a pressure booster, which is used to adjust the water inlet pressure of the lens placement slot. A wastewater collection unit is located inside the tank. The wastewater collection unit is connected to the water outlet through a recycling pipe, and the wastewater collection unit is used to collect the wastewater discharged from the lens placement slot.

2. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, The box is also equipped with multiple shock-absorbing protection devices, which are respectively located in multiple placement slots.

3. The gastrointestinal endoscope pretreatment box according to claim 2, characterized in that, The shock absorption and protection device consists of multiple elastic protrusions located on the inner wall of the placement groove.

4. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, The lens placement slot has a row of water outlet holes on its opposite sidewalls, and the two rows of water outlet holes are arranged opposite each other.

5. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, The water inlet includes multiple first water inlets and multiple second water inlets. The multiple first water inlets are located on the side wall of the lens placement slot, and the multiple second water inlets are located at the bottom of the lens placement slot. The first water inlets and the second water inlets allow water to enter independently.

6. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, It also includes an automatic irrigation device. The wastewater collection part has a water guide hole, and a filter screen is installed inside the water guide hole. The automatic irrigation device includes a water guide component and a water guide pipe. One end of the water guide pipe is connected to the water guide hole, and the other end is connected to the water inlet pipe. The water guide component is connected to the water guide pipe, and the water guide component is used to drive the filtered water in the water guide pipe into the water inlet pipe.

7. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, It also includes a first air inlet, which faces the extension direction of the lens placement slot, and the first air inlet is provided with an air pump interface on the outer wall of the housing.

8. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, It also includes multiple second air inlets, which are evenly distributed at intervals on the side and bottom walls of the lens placement slot. The lens placement slot is equipped with a vent valve, which connects the lens placement slot to the outside of the housing when a preset pressure is reached in the lens placement slot.

9. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, The box also includes a lid hinged thereto, and a sealing ring is provided between the lid and the box.

10. The gastrointestinal endoscope pretreatment box according to claim 1, characterized in that, The outer wall of the housing is provided with an observation window, which is used to observe the rinsing status of the lens located in the lens placement slot.