Automatic enzyme liquid discharging device for bedside pretreatment of endoscope

Abstract

An automatic enzyme liquid discharging device for bedside pretreatment of an endoscope comprises a shell and a control unit, and a liquid discharging space and a storage space are arranged in the shell; a liquid supply unit for storing enzyme liquid and quantitatively discharging the liquid is arranged in the storage space; and a container bearing mechanism for bearing and transferring a container is arranged in the liquid discharging space. The device is compact in structure and high in automation degree, full-process semi-automation of automatic quantitative liquid discharging of pretreatment enzyme liquid beside an endoscope bed, automatic container transferring and automatic recycling after use is achieved, the burden of medical staff is effectively relieved, and the standardization level of pretreatment operation and infection control safety are improved.

Description

Technical Field

[0001] This invention relates to the field of automatic enzyme solution dispensing devices, and more specifically to an automatic enzyme solution dispensing device for bedside pretreatment in endoscopy. Background Technology

[0002] To prevent cross-infection during endoscopic examinations and treatments, endoscopes must be pretreated with enzyme solution at the bedside after use.

[0003] Currently, the process of pre-treating endoscopes with enzyme solutions relies entirely on manual operation. Medical staff need to open a large-capacity multi-enzyme stock solution container, manually scoop or pour out a certain amount of enzyme solution using a measuring cup or other container, and then transfer it to the endoscope cleaning tank or a special rinsing device.

[0004] However, this traditional manual operation mode has certain shortcomings. First, each pretreatment requires a series of repetitive manual operations such as opening the lid, scooping, pouring, and closing the lid, which increases the workload of medical staff, is time-consuming and labor-intensive, and results in low operational efficiency. In addition, spillage and splashing are prone to occur during manual pouring, causing direct waste of enzyme solution. At the same time, frequent opening of the original solution packaging container increases the risk of the enzyme solution being exposed to the contaminated environment, which may cause the entire container of enzyme solution to become ineffective due to contamination, resulting in certain economic losses. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides an automatic enzyme solution dispensing device for bedside pretreatment of endoscopes.

[0006] The technical solution adopted by this invention to solve its technical problem is: An automatic enzyme solution dispensing device for bedside pretreatment in endoscopy includes a housing and a control unit. The housing has a dispensing space and a storage space inside. The storage space has a supply unit for storing and quantitatively dispensing the enzyme solution. The dispensing space has a container carrying mechanism for carrying and transferring containers. The container carrying mechanism includes at least a support base, a turntable rotatably mounted on the support base, and a drive assembly for driving the turntable to rotate. The support base has a dispensing station and a dispensing station. The dispensing station has a first weighing module, and the dispensing station has a second weighing module. Both the first and second weighing modules have liftable weighing supports. The turntable has two fixed supports, each with a container placement opening. The control unit is electrically connected to the supply unit, the drive assembly, the first weighing module, and the second weighing module.

[0007] In this invention, the interior of the outer shell is further provided with a recycling space, and the top of the recycling space is provided with a recycling port that penetrates the bottom surface of the liquid discharge space. The recycling port is directly opposite the lower front side of the liquid use station. The recycling space is provided with a recycling unit, which includes a recycling box and a recycling bucket placed in the recycling box. The upper port of the recycling bucket is directly opposite the recycling port.

[0008] In this invention, the bottom surface of the liquid discharge space is provided with a recovery guide tube whose cross-sectional area gradually increases from bottom to top when viewed from above. The lower port of the recovery guide tube corresponds to the recovery port, and the upper port corresponds to the lower front side of the liquid use station.

[0009] In this invention, the front side of the housing is provided with a display screen, an alarm device, and several control buttons and switches, and the control unit is electrically connected to the display screen, the alarm device, and the several control buttons and switches.

[0010] In this invention, the liquid supply unit includes an inner liner for holding enzyme solution and a quantitative dispensing unit for quantitatively dispensing the enzyme solution from the inner liner. The quantitative dispensing unit includes a peristaltic pump and a liquid supply pipeline. The peristaltic pump is fixed in the storage space. The inlet end of the peristaltic pump is connected to the inner cavity of the inner liner through the liquid supply pipeline. The outlet end of the peristaltic pump is connected to a flexible outlet pipe. The end of the outlet pipe is connected to an outlet head installed on the outer shell. An outlet through hole is provided on the outer shell. The outlet end of the outlet head extends into the dispensing space through the outlet through hole and is positioned directly above the dispensing station.

[0011] In this invention, the upper part of the inner liner is provided with a liquid filling port, the liquid filling port is covered with a protective cover, and the protective cover is provided with an inlet pipe penetration hole. The liquid supply pipeline of the quantitative liquid dispensing unit extends into the inner liner from the inlet pipe penetration hole.

[0012] In this invention, a liquid level sensor for detecting the level of enzyme solution inside the inner liner is installed on the outer surface of the inner liner sidewall.

[0013] In this invention, the support base has a support top plate equipped with a cup-pushing device for the application liquid station and for pushing the container away from the turntable, and the cup-pushing device is connected and controlled by the control unit.

[0014] In this invention, the housing is further provided with an endoscope limiter, and the housing is provided with a detection switch for detecting whether an endoscope is hung on the endoscope limiter, and the detection switch is electrically connected to the control unit.

[0015] In this invention, the operation of the automatic enzyme solution dispensing device for bedside endoscopy pretreatment includes the following steps: S1: Start the equipment and preset the single dispensing volume through the control unit; the controller drives the weighing tray of the second weighing module to rise to the detection position. After the medical staff puts the empty container into the carrying port of the liquid dispensing station and presses it on the weighing tray, the second weighing module detects that the container is in place and the weighing tray resets; the controller controls the rotary motor to drive the turntable to transfer the container to the dispensing station. At this time, the other carrying port simultaneously rotates into the liquid dispensing station, and then drives the weighing tray of the second weighing module to rise to the detection position; S2: The electric telescopic device of the first weighing module extends, the weighing support rises and lifts the container located at the liquid discharge station, detaching it from the support of the turntable, and enters the independent weighing state. The controller records the weight of the empty cup. The controller activates the peristaltic pump to inject enzyme solution into the discharge station container when any of the following trigger conditions are met: a) The second weighing module detected that a new empty container had been placed in the liquid-using station; b) Medical staff press the single-dose dispensing button; During the liquid injection process, the first weighing module monitors the weight change in real time. When the total weight reaches "empty cup weight + preset liquid volume", the controller immediately stops the peristaltic pump and completes the automatic quantitative liquid dispensing. If medical staff need to add extra enzyme solution, they can trigger the peristaltic pump to perform intermittent infusion by manually pressing the infusion button switch. S3: After the liquid injection is completed, the weighing support of the first weighing module descends, causing the container ring to fall back to the support and leave the weighing state. If the current liquid injection is triggered by "detecting a new empty container", the second weighing module will be reset synchronously, the controller will drive the turntable to rotate, transfer the already injected container to the liquid use station, and at the same time transfer the new empty container to the liquid discharge station, and enter the next liquid injection cycle; If the liquid injection is triggered by pressing the "single dispensing button", the turntable will transfer the injected container to the liquid use station after the liquid injection is completed, and the equipment will enter standby mode. S4: At the liquid handling station, the weighing support of the second weighing module rises to lift the filled container and enters the independent weighing state; the medical staff immerses the tip of the endoscope into the enzyme solution for pretreatment and uses the endoscope limiter to fix the handle of the endoscope. At this time, the endoscope is detected by the detection switch. S5: When the medical staff completes the pretreatment and removes the endoscope, the detection switch detects that if the container weight is lower than the preset recycling threshold, the controller determines that the liquid has been used up; if the container weight is higher than the preset recycling threshold but the medical staff presses the treatment completion button switch, the controller also determines that the liquid has been used up; the controller controls the weighing support of the second weighing module to descend and reset, and then drives the push cup electric push rod of the push cup device to extend, and the arc-shaped push plate pushes the container radially out of the bearing placement port; the container falls into the recycling bucket through the recycling port, and the push cup electric push rod automatically resets; S6: If continuous operation is required, medical staff will place a new empty container into the container placement port of the liquid use station. After the controller detects that the container is in place, it will repeat steps S2 to S5. If it is no longer needed, medical staff will press the end button switch. The controller will transfer the filled container to the liquid use station. After the container is used up and the cup is recovered, the equipment will automatically stop.

[0016] The beneficial effects of this invention are: This invention allows for the preparation of enzyme solution in one step, which is then added to the supply unit. The supply unit, in conjunction with a turntable, enables automatic quantitative dispensing of the enzyme solution, eliminating the need for manual opening, scooping, or pouring of the enzyme solution. This effectively reduces the workload of medical staff and improves bedside pretreatment efficiency. A high-precision weighing sensor is used for closed-loop control, which allows for precise adjustment of the liquid output, avoiding enzyme waste and ensuring consistent pretreatment results. The dual-station turntable design allows for continuous operation with one station in use and one in standby. Combined with automatic cup retrieval, it enables semi-automatic cyclic operation.

[0017] In summary, this invention features a compact structure and a high degree of automation, achieving full semi-automation of the entire process of automatic quantitative dispensing of endoscopy bedside pretreatment enzyme solution, automatic container transfer, and automatic recycling after use. This effectively reduces the burden on medical staff and improves the standardization level of pretreatment operations and the safety of infection control. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 A three-dimensional view of an automated enzyme solution dispensing device for bedside endoscopy pretreatment. Figure 2 This is a schematic diagram showing the locations of the liquid supply unit and the recovery unit; Figure 3 Side view of an automated enzyme solution dispensing device for bedside endoscopy pretreatment; Figure 4 Three-dimensional container support mechanism Figure 1 ; Figure 5 Three-dimensional container support mechanism Figure 2 ; Figure 6 This is a side view of the container-supporting mechanism; Figure 7 This is a three-dimensional view of the first weighing module; Figure 8 This is a schematic diagram of the combination of the weighing lifting platform, the weighing sensor, and the weighing support. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] Reference Figure 1-8 An automatic enzyme solution dispensing device for bedside pretreatment in endoscopy includes a housing 1 and a control unit. The housing 1 has a dispensing space 101, a storage space 102, and a recovery space 103 inside. The storage space 102 has a supply unit 2 for storing enzyme solution and dispensing it quantitatively. The dispensing space 101 has a container carrying mechanism 3 for carrying and transferring containers. The container carrying mechanism 3 includes at least a support base 31, a turntable 32 rotatably mounted on the support base 31, and a drive assembly for driving the turntable 32 to rotate. The support base 31 has a dispensing station and a dispensing station. The dispensing station has a first weighing module 33, and the dispensing station has a second weighing module 34. Both the first weighing module 33 and the second weighing module 34 have liftable weighing supports 306. The control unit is electrically connected to the supply unit 2, the drive assembly, the first weighing module 33, and the second weighing module 34, and controls the dispensing of the supply unit 2 and the rotation of the turntable 32 according to the weighing signal.

[0023] In this embodiment, casters 104 are installed at the four bottom corners of the outer casing 1. The casters 104 are equipped with braking mechanisms to facilitate movement and positioning. The interior of the outer casing 1 is divided into the discharge space 101, the storage space 102, and the recovery space 103 by a partition. The storage space 102 is located on one side of the horizontal plane, and the discharge space 101 is located above the storage space 102 and the recovery space 103 for layout and operation. The front end of the discharge space 101 is open to facilitate the operator to put in and take out endoscopes and containers.

[0024] Furthermore, the outer shell 1 has a storage opening on the side wall corresponding to the storage space 102 for taking out and putting in the inner liner 21 of the liquid supply unit 2; the outer shell 1 is hinged with a storage door 105 for closing the storage opening, and the storage door 105 may be provided with a door magnet, so as to use the door magnet to attract to the outer shell 1 to realize the closure of the storage door 105; in other embodiments, the storage door 105 may not be provided, and the storage space 102 may be directly open, which facilitates quick taking out and putting in the enzyme liquid container.

[0025] Similarly, the interior of the outer shell 1 is also provided with a recycling space 103. The top of the recycling space 103 has a recycling port 106 that penetrates the bottom surface of the liquid discharge space 101. The recycling port 106 is directly opposite the lower front side of the liquid use station. The recycling space 103 is provided with a recycling unit 4. The recycling unit 4 includes a recycling box 41 and a recycling bucket 42 placed in the recycling box 41. The recycling box 41 is installed on the lower part of the outer shell 1 via a pull-out guide rail and can be pulled back and forth to enter and exit the recycling space 103. The upper port of the recycling bucket 42 is directly opposite the recycling port 106. The front side of the outer shell 1 is provided with a recycling access port corresponding to the recycling space 103 for taking out and putting out the recycling bucket 42. The outer shell 1 is hinged with a recycling door 107 for opening and closing the recycling access port. The recycling door 107 can be provided with a door magnet, so that it can be attracted to the outer shell 1 to achieve the closure of the recycling door 107. In other embodiments, the recycling door 107 may not be provided, and the recycling space 103 may be directly open.

[0026] In this embodiment, a recovery guide tube 5 with a gradually increasing cross-sectional area from bottom to top is provided on the bottom surface of the liquid discharge space 101. The lower end of the recovery guide tube 5 corresponds to the recovery port 106, and the upper end corresponds to the lower front side of the liquid use station. The recovery guide tube 5 allows dropped containers to enter the recovery bin 42 more effectively, reducing the risk of containers falling outside the recovery bin 42. Furthermore, the recovery guide tube 5 is detachably installed on the outer casing 1 by hand-tightening bolts, so that it can be disassembled, cleaned, and disinfected after each day's use.

[0027] In this embodiment, the front side of the outer casing 1 is provided with a display screen 108, an alarm device 109, and several control buttons and switches 110. The control buttons and switches 110 include a start button switch, a manual replenishment button switch, an end button switch, a processing completed button switch, a single dispensing button switch, and a dispensing volume control button switch 110, etc. The control unit is electrically connected to the display screen 108, the alarm device 109, the start button switch, the manual replenishment button switch, the processing completed button switch, and the end button switch. The display screen 108 is used to display the current working status, liquid level information, running time, and fault codes in real time. The alarm device 109 is an audible and visual alarm. The alarm device 109 alarms when it detects abnormal liquid level or that the container is not in place.

[0028] In this embodiment, the liquid supply unit 2 includes an inner liner 21 for holding enzyme solution and a quantitative dispensing unit for quantitatively dispensing the enzyme solution from the inner liner 21. The inner liner 21 is detachable, making it easy for medical personnel to remove it from the storage space 102 for cleaning. For example, a recessed frame is provided on the bottom surface of the storage space 102, and the lower end of the inner liner 21 is inserted into the recess of the frame to restrict the horizontal movement of the inner liner 21 relative to the outer shell 1. The upper part of the inner liner 21 is provided with a liquid inlet 211 for adding liquid. The liquid inlet 211 is covered with a protective cover 22 to prevent foreign objects from falling in. The protective cover 22 is provided with an inlet tube insertion hole 221, allowing the liquid supply tube of the quantitative dispensing unit to extend into the inner liner 21 through the inlet tube insertion hole 221 to draw enzyme solution. The protective cover 22 is an elastic rubber sleeve that fits snugly against the liquid inlet 211 and the liquid supply tube, reducing the chance of enzyme solution contamination. In addition, the protective cover is designed to be detachable and replaceable.

[0029] Furthermore, the inner liner 21 is made of plastic, and a liquid level sensor 23 for detecting the enzyme liquid level inside the inner liner 21 is installed on the outer surface of the side wall of the inner liner 21. The liquid level sensor 23 is an external capacitive liquid level switch, which uses a non-invasive capacitive coupling method to detect the enzyme liquid level inside the inner liner 21 in real time, without contact or contamination.

[0030] In this embodiment, the quantitative dispensing unit includes a peristaltic pump 24 and a flexible supply pipe. The peristaltic pump 24 is fixed within the storage space 102. The inlet end of the peristaltic pump 24 is connected to the inner cavity of the inner liner 21 via the supply pipe. The outlet end of the peristaltic pump 24 is connected to a flexible outlet pipe. The end of the outlet pipe is connected to an outlet head 25 mounted on the outer casing 1. The outer casing 1 has an outlet through hole. The outlet end of the outlet head 25 extends into the dispensing space 101 through the outlet through hole and is positioned directly above the dispensing station. Neither the supply pipe nor the outlet pipe is shown in the accompanying drawings.

[0031] In this embodiment, the supporting base 31 consists of a supporting base plate 311, a supporting top plate 312, and multiple supporting rods 313. The supporting base plate 311 is connected to the outer shell 1 and fixed to the bottom surface of the liquid discharge space 101 by bolts. The upper and lower ends of the supporting rods 313 are respectively connected to the supporting base plate 311 and the supporting top plate 312 by bolts, thereby connecting the supporting base plate 311 and the supporting top plate 312 into a frame structure. Moreover, the space between the supporting base plate 311 and the supporting top plate 312 is the supporting inner space. The supporting top plate 312 has a liquid discharge avoidance port 3121 and a liquid use avoidance port 3122. The liquid discharge avoidance port 3121 corresponds to the supporting inner space to form the liquid discharge station, and the liquid use avoidance port 3122 corresponds to the supporting inner space to form the liquid use station.

[0032] Furthermore, the turntable 32 is rotatably mounted on the bearing top plate 312 via a central shaft fixed to its bottom. A bearing bearing seat is fixed on the bearing top plate 312, and the central shaft is fitted onto the bearing of the bearing bearing seat.

[0033] Furthermore, the turntable 32 has two symmetrically arranged placement clearance openings 321 running from top to bottom on its outer periphery. Two support members 35 are fixed to the upper surface of the turntable 32 by bolts. Each support member 35 corresponds to one placement clearance opening 321. Each support member 35 has a container placement opening 351, which has a push-out opening extending towards the outer periphery of the turntable 32 and penetrating the support member 35. This push-out opening allows the cup-pushing device to push the container away from the container carrying mechanism 3 at the liquid-using station. Additionally, since the support members 35 are fixed by bolts, replacing them with support members 35 that have different specifications of container placement openings 351 allows the mechanism to adapt to containers of different sizes.

[0034] Furthermore, a synchronous pulley is mounted on the central axis of the turntable 32, and a first motor base 36 is fixed in the bearing space on the bearing base plate 311. The drive assembly includes a rotary motor 37 mounted on the first motor base 36. The output shaft of the rotary motor 37 is connected to the synchronous pulley via a synchronous belt, thereby driving the turntable 32 to rotate around the vertical axis. The rotary motor 37 is a stepper motor, which has high precision.

[0035] To support the turntable 32 and ensure stable rotation, a plurality of bearing wheel assemblies 38 are installed on the bearing top plate 312, which are distributed around the outer periphery of the central axis. Each bearing wheel assembly 38 includes a bearing wheel seat 381 and a bearing roller 382. The bearing wheel seat 381 is fixedly installed on the top surface of the bearing top plate 312, and the bearing roller 382 is rotatably installed on the bearing wheel seat 381. Its upper roller surface supports the bottom surface of the turntable 32, which plays an auxiliary bearing role and prevents the outer periphery of the turntable 32 from deforming. In addition, the container carrying mechanism 3 is also equipped with a turntable positioning detection device for detecting the position of the turntable 32. The turntable positioning detection device includes a positioning proximity switch 91 and two position sensing plates 92. The positioning proximity switch 91 is fixed on the top surface of the bearing top plate 312 of the bearing base 31, and the control unit is connected to the positioning proximity switch 91. The position sensing plates 92 are symmetrically fixed at the bottom of the turntable and correspond one-to-one with the support member 35. The control unit controls the rotary motor 37 (stepper motor) to form a closed-loop linkage control with the positioning proximity switch 91. According to the position rotation requirements, the controller sends a preset angular displacement command to the rotary motor 37 to drive the turntable 32 to rotate to the vicinity of the target position to achieve coarse positioning. During the rotation of the turntable 32, the positioning proximity switch 91 continuously detects the position sensing plates 92. When the position sensing plate 92 is detected, it immediately sends a position signal to the control unit. If the rotary motor 37 has completed the coarse positioning, the positioning proximity switch 91... If the station sensor 92 is not detected, the control unit will drive the rotary motor 37 to rotate in small angles (≤5°) until a positioning signal is detected. After receiving the positioning signal, the control unit will immediately cut off the power supply to the rotary motor 37 and stop the rotation of the turntable 32. Through the closed-loop linkage control of the stepper motor and the turntable positioning detection device, the coarse positioning + fine positioning + deviation correction of the turntable 32 is achieved, which improves the station positioning accuracy of the turntable and avoids problems such as enzyme liquid leakage, container jamming, and cup pushing failure caused by station offset, thereby further improving the stability and reliability of the device operation.

[0036] In this embodiment, the first weighing module 33 and the second weighing module 34 have the same structure, both are installed on the supporting base plate 311, and are respectively set with liquid discharge avoidance port 3121 and liquid use avoidance port 3122. Both the first weighing module 33 and the second weighing module 34 include an electric telescopic device 301, a weighing guide seat 302, a weighing guide rod 303, a weighing lifting seat 304, a weighing sensor 305, and a weighing support 306. The electric telescopic device 301 is a lifting electric push rod, with its fixed end fixed to the supporting base plate 311 and its telescopic end connected upwards to the weighing lifting seat 304. The weighing guide seat 302 is fixed to the supporting base plate 311, and two vertical weighing guide rods 303 slide through it. The upper ends of the weighing guide rods 303 are fixedly connected to the weighing lifting seat 304, ensuring smooth and non-rotating lifting movement of the weighing lifting seat 304. The fixed end of the weighing sensor 305 is mounted on the weighing lifting seat 304, and the weighing support 306 is mounted on its free end, supporting the bottom of the container. When the electric telescopic device 301 extends, the weighing lifting seat 304 rises, driving the weighing support 306 to lift the container, causing the container's ring edge to detach from the support member 35. At this time, the weighing sensor 305 independently supports the container, achieving accurate weighing; when it retracts, the container falls back onto the support member 35.

[0037] In this embodiment, the supporting top plate 312 of the supporting base 31 is provided with a cup-pushing device 39 for the application liquid station and for pushing the container away from the turntable 32. The cup-pushing device 39 is connected and controlled by the control unit. Further, the cup-pushing device 39 includes a cup-pushing electric push rod 391 and an arc-shaped push plate 392. The fixed end of the cup-pushing electric push rod 391 is fixed to the supporting top plate 312, and its telescopic end is radially towards the application liquid station along the turntable 32 and fixedly connected to the arc-shaped push plate 392. The concave surface of the arc-shaped push plate 392 faces the container. When it is necessary to push the container out, the cup-pushing electric push rod 391 extends, and the arc-shaped push plate 392 pushes the container located in the application liquid station's support placement port 351 radially outward along the push-out direction, causing it to detach from the support member 35 and fall into the recycling unit 4.

[0038] In this embodiment, to prevent the container from sliding out of the ejection port 351 due to centrifugal force during the rotation of the turntable 32, a C-shaped retaining ring 6 is provided below the turntable 32. The C-shaped retaining ring 6 has a semi-enclosed structure, and the break in the C-shaped retaining ring 6 corresponds to the liquid clearance port 3122 on the top support plate 312. The C-shaped retaining ring 6 is fixedly connected to the top support plate 312 via a connecting post 61, wherein the connecting post 61 is welded to the C-shaped retaining ring 6 and fixed to the top support plate 312 by bolt connection. Furthermore, the gap between the top of the C-shaped retaining ring 6 and the bottom surface of the turntable 32 is 3 to 10 mm. This gap can avoid friction and effectively limit the radial displacement of the bottom of the container.

[0039] In this embodiment, the control unit uses a programmable logic controller or a microcontroller as the controller, which is installed in the internal electrical compartment of the outer casing 1. The internal electrical compartment is located above the liquid discharge space 101. The controller is electrically connected to the liquid level sensor 23, the weighing sensor 305 of the first weighing module 33, the weighing sensor 305 of the second weighing module 34, the peristaltic pump 24, the rotary motor 37, the electric telescopic device 301, the electric push rod 391 of the push cup, the display screen 108, the alarm device 109, and various control buttons and switches 110, thereby controlling the functions of the equipment.

[0040] In this embodiment, to facilitate medical personnel in pre-treating the endoscope with enzyme solution, the outer shell 1 is also equipped with an endoscope limiter 7. The endoscope limiter 7 has a hanging port with a silicone sleeve for hanging the endoscope handle, preventing the working end of the endoscope from swinging freely, and making it easier for medical personnel to immerse the endoscope in the enzyme solution container for pre-treatment. In addition, the outer shell 1 is equipped with a detection switch 8 for detecting whether an endoscope is hanging on the endoscope limiter 7. The detection switch 8 is electrically connected to the control unit and is used to trigger a signal and feed back to the control unit when an endoscope is detected.

[0041] The container described in this embodiment is a disposable plastic cup. The operation of the automatic enzyme solution dispensing device for bedside endoscopy pretreatment includes the following steps: S1: Start the equipment and preset the single dispensing volume through the control unit, for example, set the single dispensing volume to 50 grams; after the controller drives the weighing support 306 of the second weighing module 34 to rise to the detection position, the weighing support 306 remains stationary. The detection position is the position where the weighing support 306 stops after rising 10-15mm from the origin. After the medical staff puts the empty container into the carrying port 351 of the liquid use station and presses it on the weighing support 306, the second weighing module 34 detects the container in place based on the weight change, and the weighing support 306 resets; the controller controls the rotary motor 37 to drive the turntable 32. When the positioning proximity switch 91 detects the station sensor 92 and sends a position signal, the controller immediately stops the rotary motor 37 to transfer the container to the liquid dispensing station. At this time, the other carrying port 351 simultaneously rotates into the liquid use station. Then, after driving the weighing support 306 of the second weighing module 34 to rise to the detection position, the weighing support 306 remains stationary, waiting for the medical staff to put in a new empty container; S2: The electric telescopic device 301 of the first weighing module 33 extends, the weighing support 306 rises and lifts the container located at the liquid discharge station away from the support 35 of the turntable 32, and enters the independent weighing state. The controller records the weight of the empty cup. At this time, at least part of the liquid discharge end of the liquid discharge head 25 extends into the empty container to prevent the enzyme liquid from dripping outside the container during the liquid discharge process. When any of the following triggering conditions are met, the controller activates the peristaltic pump 24 to inject enzyme solution into the discharge station container: a) The second weighing module 34 detected that a new empty container had been placed in the liquid-using station; b) Medical staff press the single-dose dispensing button; During the liquid injection process, the first weighing module 33 monitors the weight change in real time. When the total weight reaches "empty cup weight + preset liquid volume", the controller immediately stops the peristaltic pump 24 and completes the automatic quantitative liquid dispensing. If medical staff need to add extra enzyme solution, they can trigger the peristaltic pump for 24-hour continuous rehydration by manually pressing the rehydration button. Each continuous rehydration can be set to 10 grams.

[0042] S3: After the liquid injection is completed, the weighing support 306 of the first weighing module 33 descends, causing the container ring to fall back to the support 35 and leave the weighing state. If the current liquid injection is triggered by "detecting a new empty container", the second weighing module 34 will be reset synchronously, and the controller will drive the turntable 32 to rotate. When the turntable positioning detection device detects the station induction plate 92 and sends a position signal, the controller will immediately stop the rotating motor 37 to transfer the injected container to the liquid use station and at the same time transfer the new empty container to the liquid discharge station to enter the next liquid injection cycle. If the liquid injection is triggered by pressing the "single dispensing button", the turntable 32 will rotate after the liquid injection is completed. After the turntable positioning detection device sends the position signal, the controller stops the rotating motor 37 to transfer the liquid-filled container to the liquid-using station, and the equipment enters the standby state.

[0043] S4: At the liquid-using station, the weighing support 306 of the second weighing module 34 rises to lift the filled container and enters the independent weighing state; the medical staff immerses the tip of the endoscope into the enzyme solution for pretreatment and uses the endoscope limiter 7 to fix the handle of the endoscope. At this time, the endoscope is detected by the detection switch 8. The detection switch 8 sends an endoscope in-place signal to the controller. The controller confirms that the container has entered the use state and reads the weighing data of the second weighing module 34 in real time. S5: When the medical staff removes the endoscope after completing the pretreatment, causing the endoscope-in-place signal of the detection switch 8 to disappear, if the controller knows that the container weight is lower than the preset recycling threshold (e.g., empty cup weight + 5 grams), the controller determines that the liquid has been used up; if the container weight is higher than the preset recycling threshold but the medical staff presses the treatment completed button switch, the controller also determines that the liquid has been used up; the controller controls the weighing support 306 of the second weighing module 34 to descend and reset, and then drives the cup pusher electric push rod 391 of the cup pusher device 39 to extend, and the arc-shaped pusher plate 392 pushes the container radially out of the bearing placement port 351; the container falls into the recycling bin 42 through the recycling port 106, and the cup pusher electric push rod 391 automatically resets.

[0044] S6: If continuous operation is required, medical staff will place a new empty container into the container placement port 351 of the liquid use station. After the controller detects that the container is in place, it will repeat steps S2 to S5. If it is no longer needed, medical staff will press the end button switch. The controller will transfer the filled container to the liquid use station. After the container is used up and the cup is recovered, the equipment will automatically stop.

[0045] S7: When the liquid level sensor 23 detects that the enzyme liquid level in the inner tank 21 is lower than the set lower limit, the controller drives the alarm device 109 to issue an audible and visual alarm, prompting the replenishment of enzyme liquid, and enters standby mode.

[0046] The device in this embodiment has a compact structure and a high degree of automation. It realizes a semi-automated process of automatic quantitative dispensing of pretreatment enzyme solution at the endoscopy bedside, automatic container transfer, and automatic recycling after use. This effectively reduces the burden on medical staff and improves the standardization level of pretreatment operations and the safety of infection control.

[0047] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by essentially the same means is within the protection scope of the present invention.

Claims

1. An automatic enzyme solution dispensing device for bedside pretreatment in endoscopy, comprising a housing (1) and a control unit, wherein the housing (1) has a dispensing space (101) and a storage space (102) inside; the storage space (102) is provided with a supply unit (2) for storing enzyme solution and dispensing it quantitatively; the dispensing space (101) is provided with a container carrying mechanism (3) for carrying and transferring containers, wherein the container carrying mechanism (3) includes at least a carrying base (31), a turntable (32) rotatably mounted on the carrying base (31), and a drive assembly for driving the turntable (32) to rotate. The support base (31) is provided with a liquid discharge station and a liquid use station. The liquid discharge station is provided with a first weighing module (33), and the liquid use station is provided with a second weighing module (34). The first weighing module (33) and the second weighing module (34) are both provided with a liftable weighing support (306). The turntable (32) is fixed with two support members (35). The support members (35) are provided with a support placement port (351) for placing containers. The control unit is electrically connected to the liquid supply unit (2), the drive assembly, the first weighing module (33), and the second weighing module (34).

2. The automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 1, characterized in that: The outer shell (1) is also provided with a recycling space (103). The top of the recycling space (103) is provided with a recycling port (106) that penetrates the bottom surface of the liquid discharge space (101). The recycling port (106) is directly opposite the front side of the liquid use station. The recycling space (103) is provided with a recycling unit (4). The recycling unit (4) includes a recycling box (41) and a recycling bucket (42) placed in the recycling box (41). The upper port of the recycling bucket (42) is directly opposite the recycling port (106).

3. The automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 2, characterized in that: The bottom surface of the liquid discharge space (101) is provided with a recovery guide pipe (5) whose cross-sectional area gradually increases from bottom to top when viewed from above. The lower port of the recovery guide pipe (5) corresponds to the recovery port (106), and the upper port corresponds to the lower front side of the liquid use station.

4. The automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 1, characterized in that: The front side of the housing (1) is provided with a display screen (108), an alarm device (109) and several control button switches (110), and the control unit is electrically connected to the display screen (108), the alarm device (109) and the several control button switches (110).

5. The automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 1, characterized in that: The liquid supply unit (2) includes an inner liner (21) for holding enzyme solution and a quantitative liquid dispensing unit for quantitatively dispensing enzyme solution from the inner liner (21). The quantitative liquid dispensing unit includes a peristaltic pump (24) and a liquid supply pipeline. The peristaltic pump (24) is fixed in the storage space (102). The inlet end of the peristaltic pump (24) is connected to the inner cavity of the inner liner (21) through the liquid supply pipeline. The outlet end of the peristaltic pump (24) is connected to a soft outlet pipe. The end of the outlet pipe is connected to an outlet head (25) installed on the outer shell (1). An outlet through hole is provided on the outer shell (1). The outlet end of the outlet head (25) extends into the liquid dispensing space (101) through the outlet through hole and is positioned directly above the liquid dispensing station.

6. The automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 5, characterized in that: The inner liner (21) is provided with a liquid inlet (211) at the top. The liquid inlet (211) is covered with a protective cover (22). The protective cover (22) is provided with an inlet pipe insertion hole (221). The liquid supply pipeline of the quantitative liquid dispensing unit extends into the inner liner (21) from the inlet pipe insertion hole (221).

7. An automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 5, characterized in that: A liquid level sensor (23) for detecting the height of enzyme solution inside the inner liner (21) is installed on the outer surface of the side wall of the inner liner (21).

8. The automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 1, characterized in that: The support base (31) has a support top plate (312) with a pusher (39) for applying liquid and for pushing the container away from the turntable (32). The pusher (39) is connected to and controlled by the control unit.

9. An automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 1, characterized in that: The housing (1) is also provided with an endoscope limiter (7), and the housing (1) is provided with a detection switch (8) for detecting whether the endoscope limiter (7) is hung with an endoscope. The detection switch (8) is electrically connected to the control unit.

10. An automatic enzyme solution dispensing device for bedside pretreatment of endoscopes according to claim 9, characterized in that: The operation of the automated enzyme solution dispensing device for bedside endoscopy pretreatment includes the following steps: S1: Start the equipment and preset the single dispensing volume through the control unit; the controller drives the weighing support (306) of the second weighing module (34) to rise to the detection position. After the medical staff puts the empty container into the carrying port (351) of the liquid use station and presses it on the weighing support (306), the second weighing module (34) detects that the container is in place and the weighing support (306) is reset; the controller controls the rotary motor (37) to drive the turntable (32) to transfer the container to the liquid dispensing station. At this time, the other carrying port (351) is simultaneously turned into the liquid use station, and then the weighing support (306) of the second weighing module (34) is driven to rise to the detection position. S2: The electric telescopic device (301) of the first weighing module (33) extends, the weighing support (306) rises and lifts the container located at the liquid discharge station away from the support (35) of the turntable (32), and enters the independent weighing state. The controller records the weight of the empty cup. When any of the following triggering conditions are met, the controller starts the peristaltic pump (24) to inject enzyme solution into the discharge station container: a) The second weighing module (34) detected that a new empty container had been placed in the liquid-using station; b) Medical staff press the single-dose dispensing button; During the liquid injection process, the first weighing module (33) monitors the weight change in real time. When the total weight reaches "empty cup weight + preset liquid output", the controller immediately stops the peristaltic pump (24) and completes the automatic quantitative liquid dispensing. If medical staff need to add extra enzyme solution, they can trigger the peristaltic pump (24) to perform intermittent fluid infusion by manually pressing the fluid infusion button switch; S3: After the liquid is injected, the weighing support (306) of the first weighing module (33) descends, causing the container ring to fall back to the support (35) and leave the weighing state; If the current liquid injection is triggered by "detecting a new empty container", the second weighing module (34) will be reset synchronously, the controller will drive the turntable (32) to rotate, transfer the injected container to the liquid use station, and at the same time transfer the new empty container to the liquid discharge station, and enter the next liquid injection cycle; If the injection is triggered by pressing the "single dispensing button", the turntable (32) will transfer the injected container to the liquid use station after the injection is completed, and the equipment will enter standby mode. S4: At the liquid station, the weighing support (306) of the second weighing module (34) rises to lift the liquid container and enters the independent weighing state; the medical staff immerses the tip of the endoscope into the enzyme solution for pretreatment and uses the endoscope limiter (7) to fix the handle of the endoscope. At this time, the endoscope is detected by the detection switch (8). S5: When the medical staff completes the pretreatment and removes the endoscope, the detection switch (8) detects that if the weight of the container is lower than the preset recycling threshold, the controller determines that the liquid has been used up; if the weight of the container is higher than the preset recycling threshold but the medical staff presses the treatment completed button switch, the controller also determines that the liquid has been used up; the controller controls the weighing support (306) of the second weighing module (34) to descend and reset, and then drives the cup pusher electric push rod (391) of the cup pusher device (39) to extend, and the arc-shaped push plate (392) pushes the container radially out of the bearing placement port (351); the container falls into the recycling bin (42) through the recycling port (106), and the cup pusher electric push rod (391) automatically resets; S6: If continuous operation is required, medical staff will place the new empty container into the container placement port (351) of the liquid use station. After the controller detects that the container is in place, it will repeat steps S2 to S5. If it is not needed to continue to be used, the medical staff will press the end button switch. The controller will transfer the filled container to the liquid use station. After the container is used up and the cup is recovered, the equipment will automatically stop.

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