A soft endoscope bedside pre-treatment cleaning device

Abstract

The utility model relates to medical instrument technical field discloses a kind of cleaning device of soft endoscope bedside pretreatment, including mainframe and the seal buckle of its upper protective cover, the waste water port of communication built-in waste water tank is opened in mainframe surface, surface two sides are equipped with a pair of opposite stand, rotating spray pipe is installed between two stands, its closed end is fixed by rotating clamping mechanism, open end connects rotary head and water inlet pipe, and by motor drive rotates, motor-driven brush conveyor belt is equipped below spray pipe, brush conveyor belt two sides are equipped with inclined baffle, baffle lower side is close to band surface and interval is greater than endoscope diameter, U-shaped guide slot lower than band surface height is opened in stand center, and dirty mirror box and turnover box are placed respectively outside stand.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a bedside pretreatment device, specifically a cleaning device for bedside pretreatment of flexible endoscopes. Background Technology

[0002] During clinical examinations and treatments, the external surface of the insertion section of flexible endoscopes (such as gastroscopes, colonoscopes, bronchoscopes, and cystoscopes) comes into direct contact with organic contaminants such as blood, mucus, and secretions from patients. According to globally recognized endoscope reprocessing guidelines (such as WS 507-2016, CDC, SGNA, and ESGE), after the flexible endoscope is removed from the patient, it needs to undergo immediate bedside pre-treatment followed by specialized processing. One of the core steps of bedside pre-treatment is the timely and thorough wiping of the external surface of the insertion section to prevent contaminants from drying and solidifying, forming a biofilm, and reducing the risk of cross-infection.

[0003] In the existing technology, most cleaning devices for flexible endoscopes use specialized equipment (such as automatic cleaning and disinfection machines, AERs, etc.). However, these devices are bulky, complex in structure, and expensive, and are suitable for fixed locations, but cannot meet the requirements of bedside treatment.

[0004] Currently, the cleaning of the outer surface during bedside pretreatment relies entirely on manual operation. Sterile gauze or sponges soaked in cleaning solution are typically used to manually wipe the endoscope body. This method has the following obvious drawbacks: 1. During manual wiping and rinsing, liquid splashes or drips are likely to occur, which not only increases the risk of medical staff coming into contact with contaminants, but may also contaminate environmental surfaces; 2. In actual clinical settings, due to the heavy workload and insufficient manpower, medical staff are unable to perform pretreatment immediately. After the flexible endoscope is removed, it is directly exposed and placed next to the bed, which causes contaminants to dry and increase the difficulty of subsequent cleaning and the risk of biofilm formation. 3. Bedside pretreatment is simple to perform, but residues often remain on the surface. Leaks may occur during transport, which can contaminate the medical cart or bedside environment, increasing the risk of exposure to contaminants for medical staff and patients. Furthermore, if leaks are not detected and cleaned up in time, residual bodily fluids or chemical cleaning agents may become a medium for the spread of pathogens, increasing the risk of cross-infection.

[0005] Therefore, there is an urgent need for a cleaning device for bedside pretreatment of flexible endoscopes. Utility Model Content

[0006] This invention addresses the problem that flexible endoscopes require immediate bedside cleaning of their outer surfaces to prevent contaminants from drying and forming biofilms, a problem that existing equipment cannot meet. Clinical methods not only require timely treatment but also are prone to liquid splashing and may lead to cross-infection. This invention provides a bedside cleaning device for the pretreatment of flexible endoscopes.

[0007] This utility model is achieved using the following technical solution: A cleaning device for bedside pretreatment of flexible endoscopes includes a main frame, a protective cover with a sealing buckle on the top of the main frame, a wastewater inlet connected to a wastewater tank on the upper surface of the main frame, and the wastewater tank is placed inside the main frame; two uprights are installed facing each other on the upper surface of the main frame inside the protective cover. A rotating spray pipe is installed between two uprights. The closed end of the rotating spray pipe is installed in the uprights through a rotating clamping mechanism, and the open end is connected to the water inlet pipe through a rotating head. The outer surface of the open end is fitted with a transmission device driven by a spray motor, which is fixed on the uprights. A brush conveyor belt is installed on the main frame between the two uprights. The brush conveyor belt is driven by a conveyor motor installed on the upper surface of the main frame. The surface of the brush conveyor belt is equipped with bristles for brushing the outer surface of the flexible endoscope. The brush conveyor belt is located below the two rotating spray pipes. Both sides of the brush conveyor belt are equipped with inclined baffles. The two ends of the inclined baffles are fixed to the inner side of the two uprights. The lower edge of the inclined baffles is close to the upper surface of the brush conveyor belt, and the distance between the two lower edges is greater than the outer diameter of the flexible endoscope. A U-shaped guide groove is opened in the center of each upright. The height of the U-shaped guide groove is lower than the height of the surface of the brush conveyor belt. The dirty endoscope box and turnover box of the flexible endoscope are detachably installed on the outer side of the two uprights respectively.

[0008] During implementation, the system includes a main frame, which consists of an upper plate and a lower plate. The upper and lower plates are connected by elastic supports to reduce vibration and noise and improve operational stability. A protective cover is installed on the top of the main frame, with a handle on the top or a flip-top design, which can be customized according to actual needs. The protective cover completely covers the surface of the upper plate, and a sealing strip is installed between the edge of the protective cover and the upper plate to prevent splashing of cleaning fluid and diffusion of aerosols, ensuring operational safety. A wastewater outlet connected to a wastewater tank is opened on the upper surface of the main frame. The wastewater outlet is connected to the wastewater tank through a wastewater pipe. The wastewater outlet is located at the lowest point of the water collection trough formed on the surface of the upper plate. Multiple outlets can also be opened to improve drainage efficiency and avoid contamination of the liquid flow. The wastewater tank is placed inside the main frame, between the upper and lower plates, with a gap between the wastewater tank and the upper plate to allow the elastic supports to press down.

[0009] The upper surface of the main frame is equipped with two opposing uprights inside the protective cover to support the main structure of the spray and transmission system.

[0010] A rotating spray pipe is installed between two uprights. The closed end of the rotating spray pipe is installed in the uprights through a rotating clamping mechanism. Specifically, the rotating clamping mechanism includes three axially distributed sliding bearing groups to achieve adjustable radial position and stable support for the spray pipe. Each sliding bearing group includes a mounting base. A slide rail is fixed radially inside the mounting base along the rotating spray pipe. A slider that moves along the slide rail is mounted on the slide rail. A clamping block is fixed on the top of the slider. An adjustment knob for fixing the position of the locking block is screwed on the upper surface of the clamping block. The end face of each clamping block slides in contact with the outer wall of the rotating spray pipe, forming a three-point radial support for the rotating spray pipe. The rotating spray pipe rotates freely under the drive of the spray motor. The support frame for mounting the sliding bearing assembly has a through hole for inserting a rotating spray pipe. The diameter of the through hole is larger than the outer diameter of the rotating spray pipe, and the length of the rotating spray pipe is greater than the distance between the two supports. During installation, the rotating spray pipe is inserted into the through hole from the outside of the support frame. Then, the clamping blocks of the three sliding bearing assemblies move inward until the spray pipe is rotated and fixed. Alternatively, the rotating clamping mechanism can be replaced by bearings.

[0011] The open end of the rotating spray pipe is connected to the water inlet pipe via a rotating head, and a transmission device driven by a spray motor is fitted onto the outer surface of the open end. For example, a belt connected to the output end of the spray motor can be fitted onto the outer surface of the open end, meaning a driven pulley is fitted onto the outer surface of the open end of the rotating spray pipe. This driven pulley is connected to the driving pulley on the output shaft of the spray motor via the belt, and the spray motor drives it to rotate around its axis. This is just one example of a transmission method; other transmission methods can also be used, and there are no restrictions here. The spray motor is fixed to the upright frame and sealed by a spray motor housing. The motor power cord and sensor wires use waterproof aviation connectors. To achieve independent control of the rotation speed of the two rotating spray pipes, each rotating spray pipe is driven by its own spray motor. The speed of the spray motor can be adjusted independently. By individually adjusting the rotation speed and spray pressure of each rotating spray pipe, thorough cleaning is achieved.

[0012] Specifically, the stationary end of the rotating head is embedded in the frame, and the stationary end port is sealed to the water inlet pipe. The rotating end port of the rotating head is sealed to the open end of the spray pipe and is connected through it. The water inlet pipe is connected to the water inlet tank through a water pump. The water inlet tank is installed below the main frame to achieve sealed water supply in the rotating state.

[0013] A brush conveyor belt is installed on the main frame between two uprights to transport and brush the outer surface of the endoscope. The brush conveyor belt is driven by a conveyor motor mounted on the upper surface of the main frame. The conveyor motor is sealed by a motor housing. The motor power cord and sensor wires use waterproof aviation plugs. The surface of the brush conveyor belt is equipped with bristles for brushing the outer surface of the flexible endoscope. The bristles also increase the friction between the brush conveyor belt and the flexible endoscope, making it easier to move. The brush conveyor belt is located below two rotating spray pipes. Slanted baffles are provided on both sides of the brush conveyor belt to restrict the position of the flexible endoscope and prevent it from falling out. The two ends of the slanted baffles are fixed to the inside of the two uprights. The lower edge of the slanted baffles is close to the upper surface of the brush conveyor belt, and the distance between the lower edges of the two slanted baffles is greater than the diameter of the flexible endoscope.

[0014] Each stand has a U-shaped guide groove in the center for placing a flexible endoscope in a naturally curved position. The height of the U-shaped guide groove is lower than the surface height of the brush conveyor belt, ensuring full contact between the endoscope and the brush bristles, while also increasing the contact area between the flexible endoscope and the brush conveyor belt. The outer sides of the two stands are detachably fitted with a soiled endoscope box and a transfer box. The soiled endoscope box has a clearance groove on its outer shell to allow the water inlet pipe to pass through. The spray motor, conveyor motor, and water pump are all connected to a PLC control system. The PLC control system is configured to control the start / stop, speed, and direction of each motor, as well as the start / stop and water supply parameters of the water pump, to achieve an automated cleaning process. The PLC control system uses existing technology and will not be described in detail here.

[0015] In use, place the flexible endoscope into the soiled endoscope box, with one end naturally bent and inserted from above the U-shaped guide groove of the stand. The front end of the flexible endoscope should hang naturally onto the surface of the brush conveyor belt, where the brush bristles support it. Close the protective cover and start the cleaning process. Two rotating spray pipes will operate, and cleaning fluid will be delivered to the two rotating spray pipes through the water inlet pipe to rinse the flexible endoscope below. The brush conveyor belt will start simultaneously and move slowly, using the brush bristles to clean the outer surface of the flexible endoscope and simultaneously transporting the endoscope from one side of the soiled endoscope box to the other side of the transfer box. When the flexible endoscope is transported to the other side by the brush conveyor belt, the entire flexible endoscope slides into the transfer box. Stop all spray motors, conveyor motors, and water pumps. This can be done automatically according to a preset time or manually by the operator via the PLC control system. Afterward, the operator will remove the flexible endoscope along with the transfer box and transfer it to the subsequent processing equipment.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a bedside cleaning device for flexible endoscope pretreatment. A controllable spray system rinses the outer surface of the flexible endoscope, overcoming the problems of uneven pressure and incomplete coverage associated with manual wiping. The cleaning process is carried out within a protective cover, effectively preventing splashing of cleaning fluid and aerosol diffusion, significantly reducing the occupational exposure risk to medical personnel and the possibility of environmental contamination. After pretreatment, minimal liquid residue remains on the endoscope, preventing leakage during transport and maintaining the cleanliness and safety of the instrument cart and bedside environment, eliminating potential contamination spread and slippery hazards.

[0017] The built-in brush conveyor belt of this device can realize the automatic transport of flexible endoscopes. Combined with spray cleaning, it is easy to operate and does not require personnel to supervise, thus relieving the pressure on clinical manpower.

[0018] This device is compact and small in size, and can be placed at the bedside or next to the treatment cart to meet the needs of immediate bedside treatment. It avoids the drying of contaminants due to transportation delays and effectively reduces the risk of biofilm formation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the sliding bearing assembly.

[0021] In the diagram: 1. Sliding bearing assembly; 101. Mounting base; 102. Slide rail; 103. Slider; 104. Clamping block; 105. Adjustment knob; 2. Stand; 201. U-shaped guide groove; 3. Rotating spray pipe; 4. Rotating head; 5. Brush conveyor belt; 6. Dirt mirror box; 7. Turnover box; 8. Main frame; 801. Upper plate; 802. Lower plate; 803. Elastic support; 9. Clearance groove. Detailed Implementation

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings (the drawings are shown in the figures). Figure 1 , Figure 2 (For example).

[0023] A bedside cleaning device for flexible endoscopes, such as Figure 1 , 2As shown: It includes a main frame 8 (structural components preferably made of SUS304, with a brushed or sandblasted surface). The main frame 8 includes an upper plate 801 and a lower plate 802. The upper plate 801 and the lower plate 802 are connected by an elastic support 803 (rubber / spring composite vibration damping pad, static stiffness 20~40 N / mm, stroke limit ≥3 mm) to reduce vibration and noise and improve operational stability. To avoid contamination, the end of the upper plate 801 where the dirty endoscope box is installed is set with a 1.5~3.0% unidirectional slope relative to the end where the turnover box is installed, forming a self-draining angle to prevent the cleaning fluid from flowing back along the flexible endoscope and contaminating the cleaned part.

[0024] The main frame 8 is equipped with a protective cover (made of PC polycarbonate ≥4 mm, transparent anti-fog coating, impact resistant) on the top of the sealing buckle. It is easy to open and clearly observe the cleaning process. For clarity, the protective cover is not shown in the figure. A handle is provided on the top. The protective cover covers the entire width of the upper plate 801. A sealing strip (silicone rubber sealing strip Shore A 50±5, continuous pressing) is set between the protective cover and the edge of the upper plate 801 to prevent the cleaning fluid from splashing and the aerosol from spreading, and to ensure operational safety. Water-blocking arcs (R≥3mm) are set around the upper plate 801 to prevent the cleaning fluid from leaking from the edges.

[0025] The upper surface of the main frame 8 has a wastewater inlet (Φ18~25 mm×≥2 locations) that connects to the wastewater tank, and is connected to the wastewater tank through a chemical-resistant wastewater pipe; the wastewater inlet is located at the lowest point of the water collection trough on the upper plate 801 to improve drainage efficiency and avoid the retention of contaminated liquid; the wastewater tank is placed between the upper plate 801 and the lower plate 802 (with a corrosion-resistant material, such as PP / HDPE or SUS304 inner liner), with a gap reserved between it and the upper plate to not hinder the downward pressure of the elastic support 803, and is equipped with a high / low liquid level sensor and a pull-out guide structure.

[0026] The upper surface of the main frame 8 is equipped with two opposing uprights 2 (SUS304 profile) inside the protective cover to support the main structure of the spray and transmission system.

[0027] A rotating spray pipe 3 (SUS316L thin-walled hollow pipe, with the outer diameter selected according to the spray hole layout) is installed between the two uprights 2. The closed end of the rotating spray pipe 3 is installed in the upright 2 through a rotating clamping mechanism. The rotating clamping mechanism includes three axially distributed sliding bearing groups 1 that are equidistant along the axial direction, so as to realize the radial position adjustment of the spray pipe and provide stable support.

[0028] Each sliding bearing assembly 1 consists of a mounting base 101, a slide rail 102 arranged radially along the spray pipe, a sliding slider 103, and a clamping block 104. The slide rail 102 is fixed radially within the mounting base 101 along the rotating spray pipe 3. A slider 103, which moves along the slide rail 102, is mounted on the slide rail 102. A clamping block 104 is fixed to the top of the slider 103, and an adjustment knob 105 is provided on the top of the clamping block 104 for positioning and locking. The clamping block 104 and the spray pipe 3 have a low-friction contact surface (UHMW-PE / PTFE wear-resistant patch, dry friction coefficient ≤0.2), together forming a three-point radial support for the rotating spray pipe 3. The rotating spray pipe 3 rotates freely under the drive of the spray motor. Alternatively, a pedestal rolling bearing with a sealed end cap can be used instead.

[0029] The support frame 2 for mounting the sliding bearing assembly 1 has a through hole for inserting the rotating spray pipe 3. The diameter of the through hole is larger than the outer diameter of the rotating spray pipe 3, and the length of the rotating spray pipe 3 is greater than the distance between the two supports 2. When installing the rotating spray pipe 3, it is inserted into the through hole from the outside of the support frame 2. Then, the clamping blocks 104 of the three sliding bearing assemblies 1 move inward until the spray pipe is rotated and fixed. As an alternative, the rotating clamping mechanism can also be replaced by bearings.

[0030] The support frame 2 for mounting the sliding bearing assembly 1 is provided with a through hole (the hole diameter is 0.3~0.8 mm larger than the outer diameter of the spray pipe) for inserting the spray pipe 3. The length of the spray pipe is greater than the distance between the two supports. During assembly, the spray pipe is inserted into the through hole from the outside of the support frame, and then the three clamping blocks 104 are adjusted inward to the specified preload (radial clearance 0.05~0.10 mm) to complete the fixing. As an alternative, the rotating clamping mechanism can use a seated rolling bearing with a sealed end cap (nominal bore diameter selected according to the spray pipe journal, IP55 protection) to improve long-term operational stability.

[0031] The open end of the rotating spray pipe 3 is connected to the water inlet pipe through the rotating head 4; a transmission device is fitted on the outer surface of the open end, which drives the spray pipe to rotate via the driven pulley by the spray motor (preferably a PU toothed synchronous belt with adjustable center distance and a tensioning pulley), or other transmission methods such as gears / couplings can be used, which are not limited here.

[0032] The spray motor is fixed to the stand 2 (with an IP55~IP65 housing). The motor power cord and sensor wire adopt an IP67 waterproof aviation plug and are arranged on the top. In order to achieve independent speed control of the two spray pipes, each spray pipe is driven by an independent spray motor with an adjustable speed range of 60~180 rpm. The spray pressure can also be adjusted to optimize the coverage and decontamination effect.

[0033] Specifically, the stationary end of the rotating head 4 is embedded in the frame 2 and sealed to the water inlet pipe, while the rotating end is sealed to the open end of the spray pipe, thus achieving sealed liquid supply during rotation. The rotating head is allowed to rotate at a speed of ≤200 rpm and operate at a pressure difference of ≤0.3MPa, and is compatible with cleaning / enzyme washing / disinfecting solutions (sealing material PTFE / EPDM / 316L). The water inlet pipe is connected to the water inlet tank by a water pump, and the water inlet tank is installed below the main frame 8.

[0034] A brush conveyor belt 5 is located between two uprights 2 on the main frame 8 and is equipped with a tensioning / correction mechanism. It is used to convey and brush the outer surface of the endoscope. The brush conveyor belt 5 is driven by a conveyor motor installed on the upper surface of the main frame 8. The conveyor motor is sealed by a motor housing with an IP55~IP65 rating. The motor power cord and sensor wire use waterproof aviation plugs with an IP67 rating.

[0035] The brush conveyor belt 5 has bristles (made of TPU / silicone, ShoreA 40±5, with rounded ends) on its surface for brushing the outer surface of flexible endoscopes. The bristles also increase the friction between the brush conveyor belt 5 and the flexible endoscope, facilitating movement. This achieves both brushing and increased friction with the endoscope for easier transport. The belt speed is adjustable from 20 to 60 mm / s, and the target linear pressure is 2 to 5 N. The brush conveyor belt 5 is positioned below the two rotating spray pipes 3. Both sides of the brush conveyor belt 5 are equipped with inclined baffles to restrict the position of the flexible endoscope and prevent it from falling out. The two ends of the inclined baffles are fixed to the inside of the two uprights 2. The lower edge of the inclined baffles is close to the upper surface of the brush conveyor belt 5, and the distance between the lower edges of the two inclined baffles is greater than the diameter of the flexible endoscope (adjustable range covers Ø8~15 mm endoscopes) to adapt to different models.

[0036] Each stand 2 has a U-shaped guide groove 201 in the center for placing a flexible endoscope in a naturally curved state. The height of the U-shaped guide groove 201 is 2-5 mm lower than the height of the brush conveyor belt 5 to ensure that the endoscope and the brush bristles are in full contact, while increasing the contact area between the flexible endoscope and the brush conveyor belt 5, and preventing the guide groove from scratching the endoscope body.

[0037] The outer sides of the two uprights 2 are respectively equipped with a detachable endoscope container 6 and a turnover box 7 for flexible endoscopes. The outer shell of the detachable endoscope container 6 is provided with a clearance groove 9 to avoid the water inlet pipe, and the clearance groove 9 allows the water inlet pipe to pass through; the inner angle transition R between the detachable endoscope container and the turnover box is ≥2 mm, which facilitates rinsing and avoids dead corners.

[0038] The spray motor, conveyor motor, and water pump are all connected to the PLC control system. The PLC control system is configured to control the start, stop, speed, and direction of each motor, as well as the start, stop, and water supply parameters of the water pump, in order to realize an automated cleaning process. The PLC control system uses existing technology, which will not be described in detail here.

[0039] In use, place the flexible endoscope into the soiled endoscope box 6, with one end naturally bent, and insert it from above the U-shaped guide groove of the stand 2; the front end of the endoscope hangs down onto the surface of the brush conveyor belt 5, supported by the bristles; after closing the protective cover, start the cleaning process: two rotating spray pipes 3 operate, and the cleaning fluid is delivered to the spray pipes through the water inlet pipe and the rotating head 4 to rinse the endoscope below; the brush conveyor belt 5 moves synchronously at a speed of 20~60 mm / s, and the bristles brush with a linear pressure of 2~5 N, conveying the endoscope from the soiled endoscope box 6 side to the turnover box 7 side; after the endoscope is conveyed to the other side and slides into the turnover box 7, stop the spray motor, conveyor motor, and water pump (which can be stopped automatically or manually according to the PLC preset time); then the operator takes it out along with the turnover box 7 and transfers it to the subsequent processing equipment.

[0040] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. Moreover, for those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements, and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cleaning device for bedside pretreatment of flexible endoscopes, characterized in that: Includes a main frame (8), the main frame (8) is sealed with a protective cover, the upper surface of the main frame (8) has a wastewater outlet that connects to a wastewater tank, the wastewater tank is placed inside the main frame (8); the upper surface of the main frame (8) is located inside the protective cover and two uprights (2) are installed facing each other. A rotating spray pipe (3) is installed between two uprights (2). The closed end of the rotating spray pipe (3) is installed in the upright (2) through a rotating clamping mechanism, and the open end is connected to the water inlet pipe through a rotating head (4). The outer surface of the open end is fitted with a transmission device driven by a spray motor, and the spray motor is fixed on the upright (2). A brush conveyor belt (5) is provided on the main frame (8) between two uprights (2). The brush conveyor belt (5) is driven by a conveyor motor installed on the upper surface of the main frame (8). The belt surface of the brush conveyor belt (5) is provided with bristles for brushing the outer surface of the flexible endoscope. The brush conveyor belt (5) is located below two rotating spray pipes (3). Both sides of the brush conveyor belt (5) are provided with inclined baffles. The two ends of the inclined baffles are fixed to the inner side of the two uprights (2). The lower edge of the inclined baffles is close to the upper surface of the brush conveyor belt (5), and the distance between the lower edges of the two inclined baffles is greater than the diameter of the flexible endoscope. Each stand (2) has a U-shaped guide groove (201) in the center for placing a flexible endoscope in a naturally curved state. The height of the U-shaped guide groove (201) is lower than the height of the brush conveyor belt (5). The outer sides of the two stands (2) are respectively equipped with a waste endoscope box (6) and a turnover box (7).

2. The cleaning device for bedside pretreatment of flexible endoscopes according to claim 1, characterized in that: The stationary end of the rotating head (4) is embedded in the frame (2), and the stationary end port is sealed to the water inlet pipe. The rotating end port of the rotating head (4) is sealed to the open end of the spray pipe and is in communication with it.

3. The cleaning device for bedside pretreatment of flexible endoscopes according to claim 1, characterized in that: The water inlet pipe is connected to the water inlet tank via a water pump, and the water inlet tank is installed below the main frame (8).

4. The cleaning device for bedside pretreatment of flexible endoscopes according to claim 1, characterized in that: The rotating clamping mechanism includes three axially distributed sliding bearing groups (1). Each sliding bearing group (1) includes a mounting base (101). A slide rail (102) is fixed radially inside the mounting base (101) along the rotating spray pipe (3). A slider (103) that moves along the slide rail (102) is mounted on the slide rail (102). A clamping block (104) is fixed on the top of the slider (103). An adjustment knob (105) for fixing the position of the locking block is screwed on the upper surface of the clamping block (104). The end face of each clamping block (104) slides in contact with the outer wall of the rotating spray pipe (3), forming a three-point radial support for the rotating spray pipe (3).

5. A cleaning device for bedside pretreatment of flexible endoscopes according to claim 1, characterized in that: The main frame (8) includes an upper plate (801) and a lower plate (802), and the upper plate (801) and the lower plate (802) are connected by an elastic support member (803).

6. The cleaning device for bedside pretreatment of flexible endoscopes according to claim 1, characterized in that: The spray motor, conveyor motor, and water pump are all connected to a PLC control system. The PLC control system is configured to control the start and stop, speed and direction of each motor, as well as the start and stop of the water pump and water supply parameters, in order to realize an automated cleaning process.

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