Gastroscopy auxiliary device for digestive system department

Abstract

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a gastroscopy auxiliary device for the digestive system department. The supporting assembly is arranged on the supporting seat; the rotating shaft is rotationally connected into the shell, and a driving wheel is fixedly mounted on the outer wall of the rotating shaft; the scraping assembly is arranged at the lower end of the shell; the auxiliary mechanism is arranged on the shell; wherein the auxiliary mechanism comprises a cleaning part, the cleaning part is arranged in the shell and used for cleaning residual mucus on the driving wheel, a linkage part is arranged in the shell, an opening and closing part is arranged on one side of the shell and used for controlling opening and closing of the supporting assembly, and a negative pressure part is arranged on the other side of the shell. The safety, sanitation, operation convenience and accuracy of gastroscopy can be improved, the maintenance cost of equipment is reduced, and the operation time of the equipment is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical auxiliary equipment, and in particular relates to a gastroscopy auxiliary device for gastroenterology. Background Art

[0002] Gastroenterology is a clinical tertiary discipline that mainly studies diseases of the esophagus, stomach, small intestine, large intestine, liver, gallbladder and pancreas. Gastroscopy can directly observe the true condition of the examined area, and can further clarify the diagnosis by performing pathological biopsy and cytological examination on suspected lesions. It is the preferred examination method for upper gastrointestinal tract lesions. Gastroscopy is a thin, soft tube that is inserted from the mouth into the stomach. Doctors can directly observe lesions of the esophagus, stomach and duodenum, especially tiny lesions.

[0003] During the gastroscopy, an auxiliary device is required, which usually guides the gastroscopic cannula into the oral cavity and esophagus, such as a gastroenterology gastroscopy auxiliary device with application number: CN202311608043.3. The present invention solves the problem that the existing gastroenterology gastroscopy auxiliary device continues to provide high-intensity support to the oral cavity during use, which affects the observation of the oral cavity during cannulation and easily causes oral discomfort when used for a long time. By arranging a conveying mechanism, a supporting mechanism and a collecting mechanism, it is convenient to control the cannulation and removal operations of the catheter through the conveying mechanism, and the supporting mechanism is linked to operate during the process of inserting and removing the catheter, so that the support rod can stably support the oral cavity When the insertion and removal are completed, the force on the support rod is weakened. At this time, the oral cavity can be opened and closed to a certain extent, and the opening and closing process will drive the support rod to open and close synchronously. The catheter will be in the middle gap position of the support rod, thereby ensuring that the catheter will not be bitten. In the process of pulling out the catheter, the collection mechanism will scrape the mucus on the outer wall of the catheter into the connecting cavity, and at the same time, the mucus in the connecting cavity will be drawn into the collection box for storage. The device is easy to use, and can effectively ensure that the entire oral cavity is in an open state during the process of inserting and removing the catheter, and there is less obstruction inside the oral cavity, which is convenient for medical personnel to insert and remove the gastroscope catheter, improves work efficiency, and is easy to use.

[0004] In actual applications, this type of auxiliary device uses a drive wheel to insert and remove the catheter. However, when the catheter is pulled out, the mucus attached to the catheter will adhere to the drive wheel. Since the drive wheel is located inside the housing, it becomes difficult to clean. During the next catheter insertion, the mucus remaining on the drive wheel will contaminate the catheter, thereby increasing the risk of infection for the patient.

[0005] In addition, when using the drive wheel to insert and remove the catheter, if the surface of the drive wheel is too smooth, the catheter may slip on the drive wheel, resulting in ineffective delivery of the catheter; conversely, if the surface of the drive wheel is too rough, it may damage the outer wall of the catheter, causing burrs on the outer wall. These burrs may scratch the inner wall of the esophagus when entering the esophagus, causing bleeding.

[0006] At the same time, the rubber ring used to clear mucus will come into contact with the catheter during the insertion and removal process, which will not only contaminate the catheter entering the human body, but also increase the friction time, thereby aggravating the wear of the catheter. Summary of the invention

[0007] The purpose of the present invention is to provide a gastroenterology gastroscopy auxiliary device, which can improve the safety, hygiene, operational convenience and accuracy of gastroscopy and reduce the maintenance cost and operation time of the equipment.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A gastroenterology gastroscopy auxiliary device comprises a shell, the upper end of which is fixedly connected to a support seat, and a protective shell is also provided on the front of the shell;

[0010] A support component, the support component is arranged on the support seat and is used to open the patient's oral cavity;

[0011] A rotating shaft, the rotating shaft is rotatably connected in the housing, and the front end of the rotating shaft penetrates the outside of the protective shell, a driving wheel is fixedly mounted on the outer wall of the rotating shaft, the driving wheel drives the catheter to move when in operation, and the driving wheel is evenly distributed with funnel-shaped through holes;

[0012] A scraper assembly, which is disposed at the lower end of the housing and is used to scrape off the mucus remaining on the catheter;

[0013] An auxiliary mechanism, wherein the auxiliary mechanism is arranged on the housing;

[0014] Among them, the auxiliary mechanism includes a cleaning part, which is arranged in the shell and located at the driving wheel, and is used to clean the mucus remaining on the driving wheel. A linkage part is arranged in the shell, and an opening and closing part is arranged on one side of the shell to control the opening and closing of the support assembly. A negative pressure part is arranged on the other side of the shell.

[0015] In a preferred embodiment, large gears are mounted on both of the rotating shafts and the two large gears mesh with each other. A driving motor is mounted on the side of the housing and the output shaft of the driving motor is fixedly connected to one of the rotating shafts.

[0016] In a preferred embodiment, the support assembly includes a slide groove, which is distributed in a ring shape and opened on the support seat. A slider is slidably connected in the slide groove, and a first compression spring is connected between the slider and the slide groove. A lifting rod is connected to every two corresponding sliders, and a support block is connected to the lifting rod.

[0017] In a preferred embodiment, the scraper assembly includes a mounting plate, which is connected to the lower end of the outer shell, and the top surface of the mounting plate is connected to a guide seat. The four corners of the mounting plate are provided with guide grooves, and guide blocks are slidably connected in the guide grooves. A second compression spring is connected between the guide block and the guide groove, and brackets are connected to the two guide blocks on each side, and a scraper ring is connected to the bracket.

[0018] In a preferred embodiment, the cleaning part includes a first round rod, which is rotatably connected to the inner walls on both sides of the shell, and a cleaning roller and a first transmission gear are installed on the first round rod. A flushing seat is also fixedly connected to the inner walls on both sides of the shell, and water spray heads are evenly distributed on the flushing seat. A water pump is installed on the side of the protective shell, and the drainage end of the water pump is connected to a drainage pipe, and the drainage pipe is connected to the flushing seat. A hollow shell is provided on the drainage pipe, and a second round rod is rotatably connected to the hollow shell, and a water wheel and a second transmission gear are installed on the second round rod, and the water wheel is located in the hollow shell. A diverter pipe is connected to the drainage pipe, and the diverter pipe extends from the cavity of the rotating shaft to the driving wheel, and an annular water spray hood is installed on the end of the diverter pipe.

[0019] In a preferred embodiment, the linkage part includes a slide rail, which is fixedly connected to the inner wall of the outer shell by a support rod, and a rack is slidably connected to the slide rail, and a trapezoidal block is fixedly connected to the side of the rack, and both ends of the rack are connected to a guide rod, and teeth are slidably connected to the guide rod. A third compression spring is sleeved on the guide rod, and a third transmission gear is installed at both ends of the rotating shaft.

[0020] In a preferred embodiment, the opening and closing part includes a cam, which is installed at one end of the rotating shaft, and a first hollow cylinder is fixedly connected to the side of the shell, a first piston rod is inserted at one end of the first hollow cylinder, a fourth compression spring is sleeved on the first piston rod, a first piston plate is fixedly connected to one end of the first piston rod, a second hollow cylinder is fixedly connected to the support seat, both ends of the second hollow cylinder are inserted with second piston rods, and one end of the second piston rod is fixedly connected to the lifting rod, the other end of the second piston rod is fixedly connected to the second piston plate, a fifth compression spring is fixedly connected between the two second piston plates, air outlet holes are provided at both ends of the second hollow cylinder, and an air supply pipe is connected between the first hollow cylinder and the second hollow cylinder.

[0021] In a preferred embodiment, the negative pressure part includes an exhaust fan, which is installed on the protective shell. A hollow tube is rotatably connected in the cavity of the rotating shaft. The exhaust end of the exhaust fan is connected to an exhaust duct, and the exhaust duct is connected to the hollow tube.

[0022] In a preferred solution, the diverter pipe is fixedly connected in the hollow pipe, and the hollow pipe is fixedly connected to the protective shell by a support rod.

[0023] The technical effects achieved by the present invention are:

[0024] The present invention ensures stable transmission of the catheter during insertion and withdrawal by means of the forward and reverse rotation of the driving wheel. In the process of driving the catheter to move, the negative pressure part is activated to generate negative pressure in the driving wheel. The suction force generated by the through hole on the driving wheel can not only adsorb the catheter to prevent it from slipping during transportation, but also absorb part of the mucus when the pipeline is withdrawn, further cleaning the catheter and reducing the risk of contamination of the outer wall of the catheter.

[0025] Through the design of the cleaning part, the disinfectant extracted by the water pump cleans the driving wheel in multiple steps, thus avoiding cross infection caused by residual mucus. The scraper component can effectively remove the mucus on the outer wall of the catheter during the catheter extraction process, further improving the safety of the operation;

[0026] The present invention can quickly and accurately open and reposition the patient's mouth according to needs through the linkage design of the support component and the opening and closing part, reducing oral discomfort caused by long-term high-intensity support. The rubber sleeve on the support block not only ensures hygiene, but also reduces friction on the oral mucosa, improving the patient's comfort;

[0027] The present invention adopts the linkage design of the scraper assembly and the linkage part. When the catheter is pulled out, the two scraper rings can form an annular structure, which can effectively scrape off the mucus on the outer wall of the catheter to avoid mucus residue on the catheter, thereby reducing the risk of cross infection; when the pipeline is inserted, the two scrapers are away from each other and will not contact the catheter, thereby reducing friction with the catheter and avoiding the risk of infection to the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a left side view of the present invention as a whole;

[0029] Figure 2 It is a right side view of the present invention as a whole;

[0030] Figure 3 It is a schematic diagram of the structure inside the housing of the present invention;

[0031] Figure 4 It is a partial structural schematic diagram of the cleaning part of the present invention;

[0032] Figure 5It is a schematic diagram of the connection between the linkage part and the scraper assembly of the present invention;

[0033] Figure 6 The present invention Figure 5 An enlarged schematic diagram of part A shown in FIG.

[0034] Figure 7 It is a structural schematic diagram of the scraper assembly of the present invention;

[0035] Figure 8 The present invention Figure 5 An enlarged schematic diagram of part B shown in;

[0036] Fig. 9 It is a schematic diagram of the connection between the rotating shaft of the present invention and the structure thereon;

[0037] Fig.10 The present invention Fig. 9 A cross-sectional view of

[0038] Fig.11 It is a structural schematic diagram of the opening and closing portion of the present invention;

[0039] Fig.12 The present invention Fig.11 An enlarged schematic diagram of part C shown in;

[0040] Fig.13 The present invention Fig.11 An enlarged schematic diagram of part D shown in FIG.

[0041] Fig.14 The present invention Fig.11 An enlarged schematic diagram of part E is shown in FIG.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 1. Shell; 2. Support seat; 3. Support assembly; 4. Protective shell; 5. Rotating shaft; 6. Driving wheel; 7. Scraper assembly; 8. Auxiliary mechanism; 9. Big gear; 10. Driving motor;

[0044] 301, slide groove; 302, slider; 303, first compression spring; 304, lifting rod; 305, support block;

[0045] 701, mounting plate; 702, guide seat; 703, guide groove; 704, guide block; 705, second compression spring; 706, bracket; 707, scraper ring;

[0046] 81. Cleaning part; 82. Linkage part; 83. Opening and closing part; 84. Negative pressure part;

[0047] 811, first round rod; 812, cleaning roller; 813, flushing seat; 814, water pump; 815, drainage pipe; 816, hollow shell; 817, second round rod; 818, water wheel; 819, second transmission gear; 8110, first transmission gear; 8111, diverter pipe; 8112, annular water spray hood;

[0048] 821, slide rail; 822, rack; 823, trapezoidal block; 824, guide rod; 825, teeth; 826, third compression spring; 827, third transmission gear;

[0049] 831, cam; 832, first hollow cylinder; 833, first piston rod; 834, fourth compression spring; 835, first piston plate; 836, second hollow cylinder; 837, second piston rod; 838, second piston plate; 839, fifth compression spring; 8310, air outlet; 8311, air pipe;

[0050] 841. Exhaust fan; 842. Hollow pipe; 843. Exhaust duct. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0053] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0054] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0055] Please refer to the attached Figures 1 to 14 As shown, this embodiment provides a gastroenterology gastroscopy auxiliary device, comprising a shell 1, the upper end of the shell 1 is fixedly connected to a support seat 2, and a protective shell 4 is also provided on the front of the shell 1;

[0056] A support component 3, which is disposed on the support seat 2 and is used to open the patient's oral cavity;

[0057] A rotating shaft 5, the rotating shaft 5 is rotatably connected in the housing 1, and the front end of the rotating shaft 5 penetrates the outside of the protective shell 4, and a driving wheel 6 is fixedly installed on the outer wall of the rotating shaft 5. When the driving wheel 6 is in operation, the catheter is driven to move, and the driving wheel 6 is evenly distributed with funnel-shaped through holes;

[0058] A scraper assembly 7, which is disposed at the lower end of the housing 1 and is used to scrape off the mucus remaining on the catheter;

[0059] An auxiliary mechanism 8, the auxiliary mechanism 8 is arranged on the housing 1;

[0060] Among them, the auxiliary mechanism 8 includes a cleaning part 81, which is arranged in the shell 1 and located at the driving wheel 6, and is used to clean the mucus remaining on the driving wheel 6. A linkage part 82 is arranged in the shell 1, and an opening and closing part 83 is arranged on one side of the shell 1 for controlling the opening and closing of the support assembly 3. A negative pressure part 84 is arranged on the other side of the shell 1.

[0061] Next, please refer to Figure 2 and Fig. 9 , large gears 9 are installed on the two rotating shafts 5, and the two large gears 9 are meshed with each other. A driving motor 10 is installed on the side of the housing 1, and the output shaft of the driving motor 10 is fixedly connected to one of the rotating shafts 5.

[0062] In this embodiment, the drive motor 10 is started to rotate forward, thereby driving one of the rotating shafts 5 to rotate. At the same time, the large gears 9 on the two rotating shafts 5 interact with each other through meshing transmission to ensure that the two rotating shafts 5 can rotate in opposite directions synchronously. As the rotating shafts 5 rotate, the drive wheel 6 is also driven, thereby driving the catheter to move upward. On the contrary, if the drive motor 10 is controlled to reverse, the catheter will be pulled out and the downward movement will be achieved.

[0063] Please refer again Figure 1 , Figure 3 , Figure 4 , Fig. 9 and Fig.10The cleaning part 81 includes a first round rod 811, which is rotatably connected to the inner walls of the housing 1 on both sides. A cleaning roller 812 and a first transmission gear 8110 are installed on the first round rod 811. A flushing seat 813 is also fixedly connected to the inner walls of the housing 1 on both sides, and water spray heads are evenly distributed on the flushing seat 813. A water pump 814 is installed on the side of the protective shell 4. The drainage end of the water pump 814 is connected to a drainage pipe 815, and the drainage pipe 815 is connected to the flushing seat 813. The wash seat 813 is connected, a hollow shell 816 is arranged on the drainage pipe 815, a second round rod 817 is rotatably connected to the hollow shell 816, a water wheel 818 and a second transmission gear 819 are installed on the second round rod 817, and the water wheel 818 is located in the hollow shell 816, a diverter pipe 8111 is connected to the drainage pipe 815, the diverter pipe 8111 extends from the cavity of the rotating shaft 5 to the driving wheel 6, and an annular water spray cover 8112 is installed at the end of the diverter pipe 8111.

[0064] In this embodiment, after the device is used, the pumping end of the water pump 814 is connected to the external disinfectant storage tank, and the water pump 814 is started to extract the disinfectant therein. Subsequently, the disinfectant will flow along the drainage pipe 815 and finally enter the inside of the flushing seat 813. Inside the flushing seat 813, the disinfectant will be sprayed out to flush and clean the driving wheel 6 and the cleaning roller 812.

[0065] At the same time, as the water source flows through the hollow shell 816, it drives the water wheel 818 to rotate. The rotation of the water wheel 818 further drives the rotation of the second round rod 817 and the second transmission gear 819. The second transmission gear 819 is closely connected to the first transmission gear 8110 through a toothed belt, so that the first transmission gear 8110 also starts to rotate. The rotation of the first transmission gear 8110 drives the rotation of the first round rod 811, and the rotation of the first round rod 811 drives the rotation of the cleaning roller 812, thereby effectively scrubbing the driving wheel 6, significantly improving the cleaning effect.

[0066] During this process, a portion of the disinfectant will flow into the annular water spray cover 8112 through the shunt pipe 8111. The disinfectant will eventually be sprayed out from the annular water spray cover 8112 to perform a full-scale flushing of the interior of the driving wheel 6, ensuring that every corner can be thoroughly cleaned. Through this multi-step flushing and cleaning mechanism, the device can maintain an efficient and hygienic operating state.

[0067] Please refer again Figure 5 , Figure 6 and Fig.10The linkage part 82 includes a slide rail 821, which is fixedly connected to the inner wall of the shell 1 by a support rod. A rack 822 is slidably connected to the slide rail 821, and a trapezoidal block 823 is fixedly connected to the side of the rack 822. Both ends of the rack 822 are connected to a guide rod 824, and a tooth 825 is slidably connected to the guide rod 824. A third compression spring 826 is sleeved on the guide rod 824, and a third transmission gear 827 is installed at both ends of the rotating shaft 5.

[0068] Next, please refer to Figure 5 , Figure 7 and Figure 8 The scraper assembly 7 includes a mounting plate 701, which is connected to the lower end of the housing 1. The top surface of the mounting plate 701 is connected to a guide seat 702. The four corners of the mounting plate 701 are provided with guide grooves 703. A guide block 704 is slidably connected in the guide groove 703. A second compression spring 705 is connected between the guide block 704 and the guide groove 703. A bracket 706 is connected to the two guide blocks 704 on each side, and a scraper ring 707 is connected to the bracket 706. The mounting plate 701 can be connected to the lower end of the housing 1 by bolts, or by other quick-release structures, as long as it can achieve the purpose of convenient disassembly. The specific connection method is not limited here.

[0069] In this embodiment, when the drive motor 10 is running in a forward rotation mode, the third transmission gear 827 located on the rotating shaft 5 is meshed with the rack 822. This meshing state causes the rack 822 to move upward along the slide rail 821. When the rack 822 reaches the upper limit position of its moving range, the third transmission gear 827 no longer maintains a meshing state with the rack 822, but instead meshes with the teeth 825 below the rack 822. This new meshing state causes the teeth 825 to move upward along the guide rod 824 and exerts pressure on the third compression spring 826. At this time, the third transmission gear 827 continues to maintain a meshing state with the teeth 825, and continuously pushes the teeth 825 to move upward along the guide rod 824. During the period when the third transmission gear 827 is not meshed with the rack 822, due to the reset force of the third compression spring 826, the teeth 825 will drop, so the rack 822 will not continue to move upward in this state. At the same time, in this state, the two scraper rings 707 maintain a non-contact state with the conduit to prevent the scraper rings 707 from contacting the conduit and causing contamination of the incoming conduit.

[0070] It should be noted that the teeth 825 and the teeth on the rack 822 have the same shape and size.

[0071] When the driving motor 10 is reversed and the catheter is pulled out, the situation is the opposite. At this time, the third transmission gear 827 will drive the rack 822 to descend. The descent of the rack 822 will drive the trapezoidal block 823 to descend. The descending trapezoidal block 823 will apply pressure to the bracket 706, prompting the two brackets 706 to approach each other. When the brackets 706 approach each other, the semicircular scraper rings 707 on both sides will be driven to approach each other, and finally form a complete circular ring. In this state, the scraper ring 707 contacts the outer wall of the catheter and can scrape off the mucus adhered to the outer wall of the catheter. In the process of the brackets 706 approaching each other, the guide block 704 will be driven to move and squeeze the second compression spring 705. Therefore, when the trapezoidal block 823 no longer squeezes the bracket 706, under the reset force of the second compression spring 705, the guide block 704 will drive the bracket 706 and the scraper ring 707 away from each other, thereby returning to the initial state.

[0072] It should be noted that the scraper ring 707 is made of rubber material, which has good elasticity and wear resistance, and can effectively remove dirt on the surface of the catheter without damaging the catheter. In addition, the material of the scraper ring 707 also has a certain chemical corrosion resistance, and can adapt to various chemical substances that may be contacted during gastroscopy. In actual use, the replacement cycle of the scraper ring 707 is long, which reduces maintenance costs and operation time, and improves work efficiency.

[0073] The scraper assembly 7 is detachably connected to the lower end of the housing 1, which is convenient for the staff to remove it for cleaning and maintenance, ensuring that the scraper assembly 7 can continue to maintain the best cleaning effect during the gastroscopy. The whole process is fast and convenient, greatly improving the use efficiency and maintenance convenience of the equipment.

[0074] Please refer again Figure 2 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 The opening and closing portion 83 includes a cam 831, which is mounted on one end of the rotating shaft 5. A first hollow cylinder 832 is fixedly connected to the side of the shell 1, and a first piston rod 833 is inserted at one end of the first hollow cylinder 832. A fourth compression spring 834 is sleeved on the first piston rod 833, and a first piston plate 835 is fixedly connected to one end of the first piston rod 833. A second hollow cylinder 836 is fixedly connected to the support seat 2, and second piston rods 837 are inserted at both ends of the second hollow cylinder 836, and one end of the second piston rod 837 is fixedly connected to the lifting rod 304, and the other end of the second piston rod 837 is fixedly connected to the second piston plate 838, and a fifth compression spring 839 is fixedly connected between the two second piston plates 838. Air outlet holes 8310 are provided at both ends of the second hollow cylinder 836, and an air pipe 8311 is connected between the first hollow cylinder 832 and the second hollow cylinder 836.

[0075] It should be added that: the first hollow cylinder 832 is provided with an air inlet at one end of the air supply pipe 8311, and a one-way valve is provided in the air inlet. The function of this one-way valve is that when the first piston plate 835 moves along the first hollow cylinder 832 to extract air, the outside air can enter the first hollow cylinder 832 along the one-way valve.

[0076] Secondly, please also refer to Figure 2 and Fig.14 The support assembly 3 includes a slide groove 301, which is distributed in an annular shape and opened on the support seat 2. A slider 302 is slidably connected in the slide groove 301. A first compression spring 303 is connected between the slider 302 and the slide groove 301. A lifting rod 304 is connected to every two corresponding sliders 302, and a support block 305 is connected to the lifting rod 304.

[0077] In this embodiment, the patient needs to gently bite the teeth on the support block 305 to facilitate the subsequent operation. At this time, the catheter will be inserted from the position of the scraper assembly 7 and pass through the area between the two driving wheels 6. Then, the catheter will pass through the upper end portion of the housing 1, and finally pass through the support assembly 3 and inserted into the patient's mouth.

[0078] It should be added that a disposable rubber sleeve (not shown) is provided on the support block 305 to ensure the hygienic protection of the patient's oral cavity during use. This rubber sleeve can effectively prevent cross infection and is replaced after each use to ensure the hygienic safety of the examination. In addition, the surface of the rubber sleeve is designed to be relatively smooth, which can reduce the friction on the patient's oral mucosa and further enhance the patient's comfort experience. In actual operation, the doctor only needs to simply replace the rubber sleeve to quickly prepare for the next examination, which greatly improves work efficiency.

[0079] Regardless of whether the driving motor 10 rotates forward or reverse, the rotating shaft 5 will drive the cam 831 to rotate during the process of driving the catheter to move. During the rotation process, the cam 831 will contact the first piston rod 833, thereby pushing the first piston rod 833 to move toward the inside of the first hollow cylinder 832 and squeezing the fourth compression spring 834. As the first piston rod 833 moves, the first piston plate 835 will also move accordingly, thereby squeezing the air in the first hollow cylinder 832. The squeezed air will enter the second hollow cylinder 836 along the air delivery pipe 8311. When the cam 831 does not interfere with the first piston rod 833, the first piston rod 833 and the first piston plate 835 will be reset under the action of the reset force of the fourth compression spring 834 to perform air extraction.

[0080] The air entering the second hollow cylinder 836 will push the two second piston plates 838 away from each other. As the second piston plates 838 move away from each other, the two second piston rods 837 will also move away from each other. This moving away action will cause the two lifting rods 304 to move away from each other. The moving away of the lifting rods 304 will drive the support blocks 305 to move away from each other, thereby opening the patient's oral cavity. The purpose of doing this is to facilitate the movement of the catheter and reduce the friction between the catheter and the inside of the oral cavity when the catheter enters and exits.

[0081] As air is gradually input into the second hollow cylinder 836, when the second piston plate 838 moves to the end of the second hollow cylinder 836, the excess air will be discharged through the air outlet 8310. This process helps to limit the degree of oral opening to ensure the comfort of the patient. In addition, when the catheter is not transmitted, the rotating shaft 5 will not rotate, so no gas will be sent into the second hollow cylinder 836. In this case, the fifth compression spring 839 generates a reset force to pull the two second piston plates 838 and the second piston rod 837 closer to each other, so that the two support blocks 305 are closer to each other. At this time, the oral opening is smaller to improve the comfort of the patient.

[0082] When the lifting rod 304 is lifted or lowered, the slider 302 fixedly connected thereto moves along the slide groove 301. The movement of the slider 302 can guide and limit the movement to ensure the stability of the movement. At the same time, when the two sliders 302 move away from each other, the first compression spring 303 will be squeezed. In the absence of air pressure, the first compression spring 303 will also generate a reset force to push the slider 302 to reset, thereby ensuring the stability and reliability of the entire system.

[0083] Please refer again Figure 1 , Fig. 9 and Fig.10 The negative pressure part 84 includes an exhaust fan 841, which is installed on the protective shell 4. A hollow tube 842 is rotatably connected in the cavity of the rotating shaft 5. The exhaust end of the exhaust fan 841 is connected to an exhaust duct 843, and the exhaust duct 843 is connected to the hollow tube 842; wherein, the shunt tube 8111 is fixedly connected in the hollow tube 842, and the hollow tube 842 is fixedly connected to the protective shell 4 by a support rod.

[0084] In this embodiment, when the driving wheel 6 rotates to transport the catheter, the exhaust fan 841 is started, and the exhaust fan 841 extracts the air inside the driving wheel 6 through the exhaust duct 843 and the hollow tube 842, thereby forming a negative pressure state inside the driving wheel 6. This negative pressure state causes the through hole opened on the driving wheel 6 to generate suction, and this suction can effectively absorb the catheter and prevent the catheter from slipping on the driving wheel 6 during the transportation process. In this way, the stability of the catheter during the transportation process can be ensured.

[0085] In addition, during the process of the catheter being drawn out, the suction force generated by the through hole on the driving wheel 6 can not only absorb the catheter, but also suck in some of the mucus adhering to the catheter. This suction effect not only helps to clean the catheter, but also further improves the smoothness and efficiency of the delivery process.

[0086] It should be noted that a filter is provided at one end of the hollow tube 842 located inside the driving wheel 6. The function of the filter is to prevent mucus from entering the hollow tube 842 during the suction process, thereby avoiding possible blockage or other potential problems. In this way, the entire conveying and cleaning process is ensured to be smooth and efficient.

[0087] The working principle of the present invention is:

[0088] Automatic insertion and withdrawal of catheters

[0089] Driving system: The driving motor 10 installed on the side of the housing 1 drives the two driving wheels 6 to rotate, thereby realizing the upward movement (insertion) or downward movement (extraction) of the catheter.

[0090] The cleaning part 81 pumps out disinfectant through the water pump 814, and rinses and cleans the driving wheel 6 and the cleaning roller 812. Meanwhile, the rotation of the water wheel 818 drives the cleaning roller 812 to rotate through the transmission gear, further improving the cleaning effect.

[0091] Intelligent opening of the oral cavity

[0092] Opening and closing part 83: A cam 831 is installed at one end of the rotating shaft 5. When the rotating shaft 5 rotates, the cam 831 pushes the first piston rod 833 to move inside the first hollow cylinder 832, squeezing the fourth compression spring 834. The movement of the first piston plate 835 sends the air in the first hollow cylinder 832 into the second hollow cylinder 836 through the air delivery pipe 8311, pushing the two second piston plates 838 away from each other, thereby driving the two second piston rods 837 and the lifting rod 304 away from each other, and opening the patient's mouth.

[0093] Reset mechanism: When the catheter is not being transmitted, the rotating shaft 5 will not rotate, so no gas will be delivered into the second hollow cylinder 836. In this case, the fifth compression spring 839 generates a reset force to pull the two second piston plates 838 and the second piston rod 837 closer to each other, so that the two support blocks 305 are closer to each other. At this time, the oral cavity is opened to a smaller extent to improve the patient's comfort.

[0094] Cleaning of the catheter

[0095] Scraper assembly 7: When the drive motor 10 is reversed to pull out the catheter, the third transmission gear 827 drives the rack 822 to descend, and the trapezoidal block 823 also descends, exerting pressure on the bracket 706, causing the two brackets 706 to approach each other to form a complete ring shape. The scraper ring 707 contacts the outer wall of the catheter to scrape off the mucus on the outer wall of the catheter. In the process of the brackets 706 approaching each other, the guide block 704 moves and squeezes the second compression spring 705. When the trapezoidal block 823 no longer squeezes the bracket 706, the reset force of the second compression spring 705 causes the guide block 704 to drive the bracket 706 and the scraper ring 707 away from each other and return to the initial state.

[0096] Negative pressure part 84: Start the exhaust fan 841 to extract the air inside the driving wheel 6 through the exhaust duct 843 and the hollow tube 842, forming a negative pressure state. This negative pressure state causes the through hole on the driving wheel 6 to generate suction, adsorb the catheter and prevent it from slipping. At the same time, the suction can also suck in some mucus to further clean the catheter.

[0097] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A gastroenterology gastroscopy auxiliary device, characterized in that: It comprises a shell (1), the upper end of the shell (1) is fixedly connected to a support seat (2), and a protective shell (4) is also provided on the front of the shell (1); A support component (3), the support component (3) being arranged on the support seat (2) and being used to open the patient's oral cavity; A rotating shaft (5), the rotating shaft (5) is rotatably connected in the housing (1), and the front end of the rotating shaft (5) penetrates the outer side of the protective shell (4), a driving wheel (6) is fixedly mounted on the outer wall of the rotating shaft (5), the driving wheel (6) drives the catheter to move when in operation, and the driving wheel (6) is evenly distributed with funnel-shaped through holes; A scraper assembly (7), the scraper assembly (7) being arranged at the lower end of the housing (1) and being used to scrape off the mucus remaining on the catheter; An auxiliary mechanism (8), wherein the auxiliary mechanism (8) is arranged on the housing (1); The auxiliary mechanism (8) comprises a cleaning portion (81), which is arranged in the housing (1) and located at the driving wheel (6) for cleaning the mucus remaining on the driving wheel (6), a linkage portion (82) is arranged in the housing (1), an opening and closing portion (83) is arranged on one side of the housing (1) for controlling the opening and closing of the support assembly (3), and a negative pressure portion (84) is arranged on the other side of the housing (1).

2. A gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: A large gear (9) is mounted on each of the two rotating shafts (5), and the two large gears (9) are meshed with each other. A driving motor (10) is mounted on the side of the housing (1), and the output shaft of the driving motor (10) is fixedly connected to one of the rotating shafts (5).

3. A gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The support assembly (3) comprises a slide groove (301), wherein the slide groove (301) is arranged in an annular shape on the support seat (2), a slider (302) is slidably connected in the slide groove (301), a first compression spring (303) is connected between the slider (302) and the slide groove (301), and a lifting rod (304) is connected to every two corresponding sliders (302), and a support block (305) is connected to the lifting rod (304).

4. A gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The scraper assembly (7) comprises a mounting plate (701), wherein the mounting plate (701) is connected to the lower end of the housing (1), the top surface of the mounting plate (701) is connected to a guide seat (702), the four corners of the mounting plate (701) are provided with guide grooves (703), a guide block (704) is slidably connected in the guide groove (703), a second compression spring (705) is connected between the guide block (704) and the guide groove (703), the two guide blocks (704) on each side are connected to a bracket (706), and the bracket (706) is connected to a scraper ring (707).

5. The gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The cleaning portion (81) comprises a first round rod (811), the first round rod (811) being rotatably connected to the inner walls on both sides of the housing (1), a cleaning roller (812) and a first transmission gear (8110) being mounted on the first round rod (811), a flushing seat (813) being fixedly connected to the inner walls on both sides of the housing (1), and water spray heads being evenly distributed on the flushing seat (813), a water pump (814) being mounted on the side of the protective housing (4), a drainage end of the water pump (814) being connected to a drainage pipe (815), and the drainage pipe (815) and the flushing seat are connected to each other. (813) is connected, a hollow shell (816) is arranged on the drainage pipe (815), a second round rod (817) is rotatably connected to the hollow shell (816), a water wheel (818) and a second transmission gear (819) are installed on the second round rod (817), and the water wheel (818) is located in the hollow shell (816), and a diversion pipe (8111) is connected to the drainage pipe (815), and the diversion pipe (8111) extends from the cavity of the rotating shaft (5) to the driving wheel (6), and an annular water spray cover (8112) is installed at the end of the diversion pipe (8111).

6. The gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The linkage part (82) comprises a slide rail (821), the slide rail (821) is fixedly connected to the inner wall of the housing (1) by means of a support rod, a rack (822) is slidably connected to the slide rail (821), a trapezoidal block (823) is fixedly connected to the side of the rack (822), both ends of the rack (822) are connected to guide rods (824), teeth (825) are slidably connected to the guide rods (824), a third compression spring (826) is sleeved on the guide rod (824), and both ends of the rotating shaft (5) are mounted with a third transmission gear (827).

7. The gastroenterology gastroscopy auxiliary device according to claim 3, characterized in that: The opening and closing portion (83) comprises a cam (831), wherein the cam (831) is mounted on one end of the rotating shaft (5); a first hollow cylinder (832) is fixedly connected to the side of the housing (1); a first piston rod (833) is inserted into one end of the first hollow cylinder (832); a fourth compression spring (834) is sleeved on the first piston rod (833); a first piston plate (835) is fixedly connected to one end of the first piston rod (833); a second hollow cylinder (836) is fixedly connected to the support seat (2); and the second hollow cylinder (836) is fixedly connected to the support seat (2). A second piston rod (837) is inserted at both ends of the core cylinder (836), and one end of the second piston rod (837) is fixedly connected to the lifting rod (304), and the other end of the second piston rod (837) is fixedly connected to the second piston plate (838), and a fifth compression spring (839) is fixedly connected between the two second piston plates (838). Air outlet holes (8310) are provided at both ends of the second hollow cylinder (836), and an air supply pipe (8311) is connected between the first hollow cylinder (832) and the second hollow cylinder (836).

8. The gastroenterology gastroscopy auxiliary device according to claim 5, characterized in that: The negative pressure part (84) comprises an exhaust fan (841), which is mounted on the protective shell (4); a hollow tube (842) is rotatably connected in the cavity of the rotating shaft (5); an exhaust end of the exhaust fan (841) is connected to an exhaust duct (843), and the exhaust duct (843) is in communication with the hollow tube (842).

9. A gastroenterology gastroscopy auxiliary device according to claim 8, characterized in that: The diverter pipe (8111) is fixedly connected inside the hollow pipe (842), and the hollow pipe (842) is fixedly connected to the protective shell (4) by means of a support rod.

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