Pressure steam cleaning device for hard endoscope operation instrument
By designing a pressurized steam cleaning device for rigid endoscope instruments, efficient and safe cleaning of the inner and outer tubes is achieved, solving the problems of low cleaning efficiency and occupational exposure risks in existing technologies, and ensuring thorough cleaning of rigid endoscope instruments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
The existing technology for rigid endoscope instruments has low cleaning efficiency, manual brushing poses occupational exposure and burn risks, and fails to effectively remove contaminants from the inner and outer tubes.
A pressure steam cleaning device was designed, comprising a cleaning drum and a brush roller. The inner core and outer tube are cleaned with high-temperature steam through steam nozzles and spray guns, and combined with motor-driven rotation cleaning and brushing to form a closed space to reduce aerosol diffusion.
It improves the cleaning quality and efficiency of rigid endoscope instruments, reduces occupational exposure risks and manual operation risks, and ensures thorough cleaning of the inner and outer cannulas.
Smart Images

Figure CN224195429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a pressure steam cleaning device for rigid endoscope operating instruments. Background Technology
[0002] With the development of precision and minimally invasive surgery, rigid endoscopes are increasingly widely used in medicine. As a medical device that enters the body cavity, rigid endoscopes can directly observe lesions in the internal organs, determine their location and extent, and perform photography, biopsy, or brushing, improving the accuracy of disease diagnosis. They can also be used for certain treatments. A survey of 2,271 hospitals in my country found that rigid endoscopes accounted for 79.61% of surgical instruments centrally processed in the sterilization supply center. However, reusable rigid endoscopes have also become a potential medium for the transmission of pathogens and iatrogenic infections. Studies show that about 60%-80% of iatrogenic infections originate from reusable medical devices. The "Top Ten Medical Technology Hazards" published by the National Institute of Emergency Medicine in 2024 placed the issue of medical device cleanliness at the forefront, emphasizing that failure to properly clean, disinfect, or sterilize reusable medical devices can lead to infection transmission, equipment damage, and other forms of harm.
[0003] Rigid endoscopic instruments, such as dissecting forceps, dissecting scissors, and intestinal forceps, consist of two parts: an inner core and an outer cannula. Postoperatively, residual patient blood and tissue can form scabs that adhere to the grooves of the inner core and the inner wall of the outer cannula if not treated promptly, significantly complicating the cleaning process. Currently, staff in the sterilization supply center primarily use manual scrubbing supplemented by handheld pressure steam guns. However, manual scrubbing is inefficient, and handheld pressure steam guns generate a large amount of aerosols during use, posing occupational exposure risks. Additionally, the handheld steam guns also pose a risk of burns. Therefore, this paper proposes a pressure steam cleaning device for rigid endoscopic instruments to overcome these shortcomings. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure steam cleaning device for rigid endoscope instruments.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure steam cleaning device for rigid endoscope operating instruments, comprising a body, a transparent sealing cover slidably connected to the rear side of the body, a push-pull steam nozzle rod disposed on the rear right side of the body, a pull-type telescopic water spray nozzle fixedly connected to the rear right side of the top of the body, an exhaust fan fixedly connected to the middle of the rear end face of the body, an exhaust hole opened between the rear of the body and the input end of the exhaust fan, a first motor fixedly connected to the rear left end face of the body, an output shaft fixedly connected to the output end of the first motor, a cleaning roller fixedly connected to the outside of the output shaft, an outer tube holder fixedly connected to the front side of the body, a steam conveying rod fixedly connected to the rear top of the outer tube holder, a rubber clamp fixedly connected to the top of the steam conveying rod, an outer tube steam nozzle fixedly connected to the front end face of the steam conveying rod, a drain pipe fixedly connected to the lower right side of the body, and a control console fixedly connected to the front end face of the body.
[0006] As a further description of the above technical solution: the control console is electrically connected to the first motor and the exhaust fan respectively. The outer tube holder has a slot on its front side and is located at the front side of the cleaning drum. The outer tube holder is connected to the outer tube flushing hole through the steam delivery rod nozzle, so that the device can perform high-temperature steam cleaning on the instrument outer tube that is restricted in the holder, thereby achieving the purpose of mechanized cleaning of rigid endoscope operating instruments.
[0007] As a further description of the above technical solution: the end of the output shaft away from the first motor is rotatably connected to the rear right side of the machine body, and the first motor drives the cleaning drum to rotate counterclockwise. The outer side of the cleaning drum is provided with several limiting grooves, and the limiting grooves are set from left to right. The inner side of the limiting grooves on the outer side of the cleaning drum is provided with a rubber layer. The surface of the cleaning drum is provided with limiting grooves to hold the inner core of the rigid endoscope operating instrument. The number of nozzles of the push-pull steam nozzle rod is 4 sets, and the nozzles of the push-pull steam nozzle rod are set in 4 directions from front to back: back, down, down, and front. With the rotation function of the cleaning drum, the high-temperature steam sprayed by the push-pull steam nozzle rod onto the cleaning drum can evenly contact the tooth grooves of the inner core.
[0008] As a further description of the above technical solution: the number of steam nozzles on the outer sleeve of the front end face of the steam conveying rod is several, and the number and position of the steam nozzles on the outer sleeve are matched with the number and position of the slots opened on the front side of the outer sleeve holder. The steam nozzles on the outer sleeve are connected to the flushing holes of the outer sleeve to perform high-temperature steam cleaning on the outer sleeve cavity.
[0009] As a further description of the above technical solution: a bottom shell is fixedly connected to the bottom of the outer tube holder, a second motor is fixedly connected to the bottom right side of the bottom shell, a linkage wheel is fixedly connected to the output end of the second motor, a belt is provided on the outside of the linkage wheel, a fixed shaft is fixedly connected to the top of the linkage wheel, a cleaning roller is fixedly connected to the outside of the fixed shaft, the end of the fixed shaft away from the linkage wheel is rotatably connected to the upper part of the inner side of the outer tube holder, and the middle of the bottom of the linkage wheel is rotatably connected to the middle of the lower part of the inner side of the bottom shell.
[0010] As a further description of the above technical solution: the inner middle of the outer tube holder is provided with several slots running from front to back, and the cleaning roller is located in the slots. The number and position of the cleaning roller are matched with the number and position of the slots opened on the front side of the outer tube holder. The outer side of the cleaning roller is provided with bristles with a length of 2cm. The cleaning roller, which rotates around the fixed axis, can clean the surface of the outer tube.
[0011] As a further description of the above technical solution: the number of linkage wheels is the same as the number of cleaning brush rollers, and the linkage wheels are evenly distributed from left to right inside the bottom shell. The linkage wheels are connected by belts, and the output end of the second motor is connected to the linkage wheel at the top right side inside the bottom shell. The second motor can drive several cleaning brush rollers to rotate at the same time, reducing manufacturing costs.
[0012] This utility model has the following beneficial effects:
[0013] This invention relates to a pressure steam cleaning device for rigid endoscope instruments. The rigid endoscope instrument comprises an outer tube and an inner core. A limiting groove is provided on the surface of the cleaning drum to fix the inner core. Simultaneously, the cleaning drum, driven by a first motor, rotates, ensuring that the steam ejected from the push-pull steam nozzle evenly contacts the toothed grooves at the clamp end of the inner core. Furthermore, a steam delivery rod connects the steam nozzle to the rinsing hole of the outer tube, allowing the device to perform high-temperature steam cleaning of the outer tube cavity confined within the outer tube holder. Simultaneously, the design of a second motor and a cleaning roller, rotating around a fixed axis, cleans the surface of the outer tube, thus improving the cleaning quality and efficiency of the rigid endoscope instrument.
[0014] The pressure steam cleaning device for rigid endoscope instruments designed in this utility model can form an independent and sealed space inside the machine body, which can realize the mechanized cleaning of rigid endoscope instruments. At the same time, the sealed environment prevents aerosols from spreading into the air, reducing occupational exposure risks and avoiding the risk of burns from manual operation.
[0015] This invention relates to a pressure steam cleaning device for rigid endoscope instruments. Through the design and cooperation of a second motor and a cleaning roller, the device can perform high-temperature steam cleaning on the outer tube of the instrument, which is confined to the outer tube holder, while the cleaning roller, which rotates around a fixed axis, can clean the surface of the outer tube of the endoscope instrument, preventing contaminants from adhering to the surface of the outer tube and improving the cleaning efficiency of rigid endoscope instruments to a certain extent. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall horizontal rotation 180° structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the overall structure of the cleaning drum of this utility model;
[0019] Figure 4 This is a schematic diagram of the overall structure of the outer tube holder of this utility model;
[0020] Figure 5 This is a schematic diagram of the longitudinal cross-sectional structure of the bottom shell of this utility model;
[0021] Figure 6 This is a schematic diagram of the push-pull steam nozzle rod of this utility model, which rotates longitudinally by 180°.
[0022] Legend:
[0023] 1. Body; 2. Transparent sealing cover; 3. Push-pull steam nozzle rod; 4. Pull-type telescopic water spray nozzle; 5. Exhaust vent; 6. Cleaning roller; 7. Outer tube holder; 8. Steam conveying rod; 9. Outer tube steam nozzle; 10. Rubber clamp; 11. Control console; 12. Drain pipe; 13. Exhaust fan; 14. First motor; 15. Output shaft; 16. Bottom shell; 17. Second motor; 18. Cleaning brush roller; 19. Linkage wheel; 20. Fixed shaft; 21. Belt. Detailed Implementation
[0024] Reference Figures 1 to 6This utility model provides a pressure steam cleaning device for rigid endoscope instruments, comprising a body 1, a longitudinally sliding transparent sealing cover 2 located on the rear inner side of the body 1, a push-pull steam nozzle rod 3 located on the right rear inner side of the body 1, a pull-type telescopic water spray nozzle 4 located on the rear right top side of the body 1, an exhaust fan 13 fixed to the middle of the rear end face of the body 1 by bolts, an exhaust hole 5 opened between the rear inner side of the body 1 and the input end of the exhaust fan 13, and a first motor 14 fixed to the rear left end face of the body 1 by bolts. An output shaft 15 is provided at the output end. The outer side of the output shaft 15 passes through the middle of the inside of the cleaning drum 6 and is welded and fixed. An outer tube holder 7 is provided on the front side of the inside of the machine body 1. A steam conveying rod 8 is provided behind the top of the outer tube holder 7. A rubber clamp 10 is provided on the top of the steam conveying rod 8. The gap between the rubber clamps 10 is parallel to the groove opened at the front end of the outer tube holder 7. An outer tube steam nozzle 9 is provided on the front end face of the steam conveying rod 8. The drain pipe 12 passes through and fixes the lower right side of the inside of the machine body 1. A control console 11 is provided on the front end face of the machine body 1.
[0025] As a further implementation of the above technical solution: the control console 11 is electrically connected to the first motor 14 and the exhaust fan 13 respectively, and simultaneously controls the start and stop of the push-pull steam nozzle rod 3, the pull-type telescopic flushing nozzle 4 and the steam conveying rod 8. The outer tube holder 7 has a slot on its front side, and the position of the outer tube holder 7 is set at the front side of the cleaning roller 6. The outer tube flushing hole is connected through the nozzle of the steam conveying rod 8, so that the device can perform high-temperature steam cleaning on the instrument outer tube that is restricted in the outer tube holder 7, thereby achieving the purpose of mechanized cleaning of rigid endoscope operating instruments.
[0026] As a further implementation of the above technical solution: the end of the output shaft 15 away from the first motor 14 is rotatably connected to the rear right side of the machine body 1, and the first motor 14 drives the cleaning drum 6 to rotate counterclockwise. Several limiting grooves are provided on the outer side of the cleaning drum 6, and the limiting grooves are set from left to right. A rubber layer is provided on the inner side of the limiting grooves on the outer side of the cleaning drum 6, which allows the high-temperature steam sprayed by the push-pull steam nozzle rod 3 to the cleaning drum 6. At the same time, the surface of the cleaning drum 6 is provided with limiting grooves to lock the inner core of the rigid endoscope operating instrument. With the rotation function of the cleaning drum 6, the high-temperature steam is evenly contacted with the tooth grooves of the inner core.
[0027] As a further implementation of the above technical solution: the number of outer tube steam nozzles 9 on the front end face of the steam conveying rod 8 is several, and the number and position of the outer tube steam nozzles 9 are matched with the number and position of the slots opened on the front side of the outer tube holder 7. The number of nozzles on the push-pull steam nozzle rod 3 is 4 sets, and the nozzles of the push-pull steam nozzle rod 3 are set in 4 directions from front to back: back, down, down, and front. The outer tube steam nozzles 9 are connected to the outer tube flushing hole to perform high-temperature steam cleaning on the outer tube cavity.
[0028] As a further implementation of the above technical solution: the bottom of the outer tube holder 7 is fixedly connected to the bottom shell 16, the bottom right side of the bottom shell 16 is fixedly connected to the second motor 17, the output end of the second motor 17 is fixedly connected to the linkage wheel 19, the outer side of the linkage wheel 19 is provided with a belt 21, the top of the linkage wheel 19 is fixedly connected to the fixed shaft 20, the outer side of the fixed shaft 20 is fixedly connected to the cleaning roller 18, the end of the fixed shaft 20 away from the linkage wheel 19 is rotatably connected to the upper part of the inner side of the outer tube holder 7, and the middle of the bottom of the linkage wheel 19 is rotatably connected to the middle of the lower part of the inner side of the bottom shell 16.
[0029] As a further implementation of the above technical solution: several slots are horizontally opened in the middle of the outer tube holder 7, running from front to back, and the cleaning roller 18 is located in the slots. The number and position of the cleaning roller 18 are matched with the number and position of the slots opened on the front side of the outer tube holder 7. The outer side of the cleaning roller 18 is provided with bristles with a length of 2cm. The cleaning roller 18, which rotates with the fixed shaft 20 as the base point, can clean the surface of the outer tube.
[0030] As a further implementation of the above technical solution: the number of linkage wheels 19 is the same as the number of cleaning brush rollers 18, and the linkage wheels 19 are evenly distributed from left to right inside the bottom shell 16. The linkage wheels 19 are connected by belts 21, and the output end of the second motor 17 is connected to the linkage wheel 19 at the top right side inside the bottom shell 16. The second motor 17 can drive several cleaning brush rollers 18 to rotate at the same time, reducing manufacturing costs.
[0031] Working principle:
[0032] When using this invention, the rigid endoscope manipulator is disassembled into an outer tube and an inner core. The transparent sealing cover 2 on top of the body 1 is pushed upwards, sliding upwards along the body 1. At this time, the outer tube of the rigid endoscope manipulator is inserted from front to back into the slot on the front side of the outer tube holder 7 and fixed. The outer tube portion of the rigid endoscope manipulator contacts the outer side of the cleaning roller 18 inside the outer tube holder 7, while the inner core of the rigid endoscope manipulator is inserted into the limiting groove on the outer side of the cleaning roller. After placement... Push down the transparent sealing cover 2 to open the push-pull steam nozzle rod 3. Control the first motor 14 on the left end face of the machine body 1 via the control panel 11 to start, and simultaneously open the second motor 17 located on the bottom right side of the outer tube holder 7. First, the first motor 14 drives the output shaft 15 at the output end to rotate counterclockwise. The cleaning roller 6 set on the outside of the output shaft 15 rotates synchronously with the output shaft 15. The high-temperature steam sprayed from the push-pull steam nozzle rod 3 located on the upper right of the cleaning roller 6 makes full contact between the steam and the tooth groove of the inner core clamp of the rigid endoscope operating instrument under the rotation of the cleaning roller 6. Simultaneously, the second motor 17 drives the linkage wheel 19 at the top right side inside the bottom shell 16 to rotate. A belt 21 is installed on the outside of the linkage wheel 19. The rotation of one set of linkage wheels 19 can drive all linkage wheels 19 to rotate simultaneously. The fixed shaft 20 at the top of the linkage wheel 19 drives the cleaning roller 18 to perform contact cleaning on the surface of the outer tube of the rigid endoscope operating instrument. Because the outer side of the cleaning roller 18 is equipped with bristles that can cover the surface of the outer tube of the rigid endoscope operating instrument, the outer tube of the rigid endoscope operating instrument can be cleaned from all directions during the rotation of the cleaning roller 18. While washing, the exhaust fan 13 located at the rear of the machine body 1 is turned on. The exhaust fan 13 exhausts the steam inside the machine body 1 to the outside through the exhaust port 5 at the rear of the machine body 1. The water formed by the cooling of the steam inside the machine body 1 is discharged to the outside through the drain pipe 12. After washing, push the transparent sealing cover 2 upward to remove the outer tube of the rigid endoscope operating instrument from the front side of the outer tube holder 7. Then remove the inner core of the rigid endoscope operating instrument from the outside of the rotating drum 6. Pull the pull-type telescopic water spray head 4 upward to rinse the contaminants inside the machine body 1. The contaminants and wastewater are discharged from the drain pipe 12.
[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pressurized steam cleaning device for rigid endoscope instruments, comprising a body (1), characterized in that: A transparent sealing cover (2) is slidably connected to the rear inner side of the body (1). A push-pull steam nozzle rod (3) is provided on the right rear side inside the body (1). A pull-type telescopic water spray nozzle (4) is fixedly connected to the rear right side of the top of the body (1). An exhaust fan (13) is fixedly connected to the middle of the rear end face of the body (1). An exhaust hole (5) is provided between the rear inner side of the body (1) and the input end of the exhaust fan (13). A first motor (14) is fixedly connected to the rear left end face of the body (1). An output device is fixedly connected to the output end of the first motor (14). Output shaft (15), a cleaning roller (6) is fixedly connected to the outside of the output shaft (15), an outer tube holder (7) is fixedly connected to the front inside the body (1), a steam conveying rod (8) is fixedly connected to the top rear of the outer tube holder (7), a rubber plate (10) is fixedly connected to the top of the steam conveying rod (8), an outer tube steam nozzle (9) is fixedly connected to the front end face of the steam conveying rod (8), a drain pipe (12) is fixedly connected to the lower right inside the body (1), and a control console (11) is fixedly connected to the front end face of the body (1).
2. The pressurized steam cleaning device for rigid endoscope operating instruments according to claim 1, characterized in that: The control console (11) is electrically connected to the first motor (14) and the exhaust fan (13) respectively. The outer tube holder (7) has a slot on its front side and is located at the front side of the cleaning drum (6).
3. The pressurized steam cleaning device for rigid endoscope operating instruments according to claim 1, characterized in that: The output shaft (15) is rotatably connected to the rear right side of the machine body (1) at one end away from the first motor (14). The first motor (14) drives the cleaning drum (6) to rotate counterclockwise. The cleaning drum (6) is provided with several limiting grooves on its outer side, and the limiting grooves are set from left to right. The limiting grooves on the outer side of the cleaning drum (6) are provided with a rubber layer.
4. A pressurized steam cleaning device for rigid endoscope operating instruments according to claim 1, characterized in that: The number of outer tube steam nozzles (9) on the front end face of the steam conveying rod (8) is several. The number and position of the outer tube steam nozzles (9) are matched with the number and position of the slots opened on the front side of the outer tube holder (7). The number of nozzles of the push-pull steam nozzle rod (3) is 4 sets, and the nozzles of the push-pull steam nozzle rod (3) are set in four directions from front to back: back, down, down, and front.
5. A pressurized steam cleaning device for rigid endoscope operating instruments according to claim 1, characterized in that: The bottom of the outer tube holder (7) is fixedly connected to the bottom shell (16). The bottom right side of the bottom shell (16) is fixedly connected to the second motor (17). The output end of the second motor (17) is fixedly connected to the linkage wheel (19). A belt (21) is provided on the outside of the linkage wheel (19). A fixed shaft (20) is fixedly connected to the top of the linkage wheel (19). A cleaning roller (18) is fixedly connected to the outside of the fixed shaft (20). The end of the fixed shaft (20) away from the linkage wheel (19) is rotatably connected to the upper part of the inner side of the outer tube holder (7). The middle of the bottom of the linkage wheel (19) is rotatably connected to the middle of the lower part of the inner side of the bottom shell (16).
6. A pressurized steam cleaning device for rigid endoscope instruments according to claim 5, characterized in that: The outer tube holder (7) has several slots that run from front to back horizontally in the middle, and the cleaning roller (18) is located in the slots. The number and position of the cleaning roller (18) match the number and position of the slots opened on the front side of the outer tube holder (7). The cleaning roller (18) has bristles with a length of 2cm on its outer side.
7. A pressurized steam cleaning device for rigid endoscope instruments according to claim 5, characterized in that: The number of linkage wheels (19) is the same as the number of cleaning rollers (18), and the linkage wheels (19) are evenly distributed from left to right inside the bottom shell (16). The linkage wheels (19) are connected by belts (21), and the output end of the second motor (17) is connected to the linkage wheel (19) at the top right side inside the bottom shell (16).