Gastroscopy auxiliary device for digestive system department

Abstract

The invention relates to the technical field of gastroscopy, in particular to a gastroscopy auxiliary device for the digestive system department, which comprises a gastroscope channel tube for placing a gastroscope cannula, an external plate is vertically fixed at the front end of the gastroscope channel tube, and elastic telescopic rods I are fixed on two sides of the bottom end of the gastroscope channel tube; an elastic tongue clamping plate is fixed to the end of the elastic telescopic rod I. A tongue pressing air bag is fixed to the middle of the bottom end of the gastroscope channel tube. The cheek side is filled with the cheek bulging air bag, and the tongue pressing air bag presses the position of the tongue, so that the gastroscope cannula is always located in the middle position in the cavity, the gastroscope cannula cannot make contact with the interior of the cavity, excessive cavity liquid is prevented from being generated, and the tongue moves downwards when a patient lies on the side; when the gastroscope cannula is taken out, the corresponding inflow assembly is triggered to be opened, oral cavity liquid enters the cheek bulging air bag, cavity liquid cannot flow downwards along with the outer wall of the gastroscope cannula to make contact with the intestinal wall, adhesion is likely to be generated after a long time, and a patient feels uncomfortable when the gastroscope cannula is taken out.

Description

Technical Field

[0001] The present invention relates to the technical field of gastroscopy, and particularly to an auxiliary device for gastroscopy examination in the department of digestive medicine. Background Art

[0002] The process of observing the mucosal state of the esophagus, stomach, duodenal bulb and even the descending part sequentially and clearly through a gastroscope, and being able to perform in vivo pathological and cytological examinations is called gastroscopy examination. Gastroscopy examination has reliable diagnosis and high safety. The magnetically controlled capsule endoscope has created a new examination mode of "performing gastroscopy without intubation", with the characteristics of painless, non-invasive, non-anesthetic, and disposable use without cross-infection, making the traditional gastroscopy examination no longer daunting.

[0003] An existing auxiliary device for gastroscopy examination in the department of digestive medicine with the publication number of CN115105006 A in the prior art relates to the technical field of medical devices, including: a mounting seat, a connecting pipe is provided at the front part of the mounting seat; a bite tube is provided at the rear part of the mounting seat; adjusting components are provided on the left and right sides of the connecting pipe, and the two adjusting components are distributed symmetrically; an adjusting ring is provided at the front side of the connecting pipe. In this invention, the bite tube can be quickly detached from the mounting seat, and during the whole operation process, it can be assembled and disassembled with one hand, thereby improving the loading and unloading efficiency of this auxiliary device; due to the setting of the limit sleeve, it can prevent the gastroscope intubation from stretching back and forth and rubbing against the inner wall of the patient's esophagus, reducing the discomfort during the examination, and solving the problems that the support component in the auxiliary device has a complex structure and it is difficult to disassemble the support component with one hand, and at the same time, during the examination, the gastroscope intubation is prone to stretching back and forth and displacement, which will rub against the inner wall of the patient's esophagus, increasing the discomfort of the patient.

[0004] During the use process, there are still the following problems:

[0005] When the patient undergoes a lateral examination, the gastroscope intubation will not always be in the middle position of the cavity, which will cause the gastroscope intubation to contact the cavity, and it is easy to infect bacteria. Moreover, if there is a large gap between the patient's tongue and the cavity, a relatively large amount of cavity fluid will be generated. If it is not sucked away in time, the cavity fluid will enter the intestinal wall through the gastroscope intubation and adhere to the intestinal wall. When taking out the gastroscope intubation after the examination is completed, it will cause greater discomfort to the patient. Summary of the Invention

[0006] In view of the problems mentioned in the background art in the above or the prior art, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide an auxiliary device for gastroscopy examination in the department of digestive medicine.

[0008] To solve the above technical problems, the present invention provides the following technical solution: A gastroscopy examination assistance device for the digestive department, including a gastroscope channel tube for placing a gastroscope intubation tube. An external plate is vertically fixed at the front end of the gastroscope channel tube. Elastic telescopic rods I are fixed on both sides of the bottom end of the gastroscope channel tube. An elastic tongue clamping plate is fixed at the end of the elastic telescopic rod I. A tongue pressing airbag is fixed in the middle of the bottom end of the gastroscope channel tube. Elastic telescopic rods II are vertically fixed on both sides of the middle of the gastroscope channel tube. A cheek puffing airbag is fixed at the end of the elastic telescopic rod II. The lower part of the cheek puffing airbag is in contact with the top of the elastic tongue clamping plate. An inflow component is provided at the lower part of the cheek puffing airbag;

[0009] Among them, the elastic tongue clamping plates are located at both ends of the tongue. When one of the elastic tongue clamping plates moves with the tongue, it triggers the corresponding inflow component to open and let oral fluid enter the cheek puffing airbag. During use, the external plate is placed outside the mouth, the two cheek puffing airbags are placed in the two cheeks, the elastic tongue clamping plates are located at both ends of the tongue. After the gastroscope channel tube is placed in the middle position, the two cheek puffing airbags are inflated to keep the gastroscope channel tube in the middle position all the time. If the gastroscope channel tube is not in the middle, only the corresponding cheek puffing airbag needs to be inflated. Then the tongue pressing airbag is inflated to press the tongue. The person lies on their side, inserts the gastroscope intubation tube into the gastroscope channel tube, and adjusts the gastroscope channel tube to the middle position through the cheek puffing airbag. When the patient's tongue droops downward due to gravity, the drooping of the tongue drives the elastic tongue clamping plate to move downward synchronously. The top of the upper elastic tongue clamping plate is separated from the lower part of the cheek puffing airbag, opening the inflow component of the upper elastic tongue clamping plate, so that the cavity fluid at the gap between the tongue and the teeth enters the upper cheek puffing airbag through the upper elastic tongue clamping plate from the inflow component.

[0010] Preferably: The inflow component includes a plurality of through holes opened in the lower part of the cheek puffing airbag. A sliding rod is slidably connected in each through hole. A limiting mesh plate is fixed in the middle of the through hole. The sliding rod passes through the limiting mesh plate. A top plate is fixed at one end of the sliding rod close to the elastic tongue clamping plate. An extrusion spring for driving the sliding rod to move outward is provided between the top plate and the limiting mesh plate. A sealing plate is fixed at the end of the through hole away from the elastic tongue clamping plate. A sealing plug for blocking the sealing plate is fixed at the other end of the sliding rod. The through hole is communicated with a one-way member at the end away from the top plate. The top end of the one-way member is communicated with an exhaust fan. The exhaust fan is always in an open state. The exhaust fan pumps the gas inside the cheek puffing airbag to below the one-way member. During the flow of the gas, the cavity fluid in the through hole is pumped into the cheek puffing airbag. The cavity fluid flowing from the elastic tongue clamping plate to the cheek puffing airbag also enters the cheek puffing airbag through the through hole, passes through the limiting mesh plate. Through the use of the one-way member, it can prevent air or cavity fluid from entering the upper part from below the one-way member, and can collect the cavity fluid into the cheek puffing airbag.

[0011] Preferably, the extrusion spring is located outside the sliding rod.

[0012] Preferably, there is an interference fit between the sealing disc and the sealing plug to facilitate their cooperation.

[0013] Preferably, the one-way member includes a sealing cover communicating with one end of the through hole. An air inlet communicating with the air outlet end of the exhaust fan is provided in the middle of the top end of the sealing cover, and an air outlet is provided in the middle of the bottom end of the sealing cover. An obstructive structure for hindering the upward flow of the fluid is provided inside the sealing cover.

[0014] Preferably, the obstructive structure includes long plates distributed inside the sealing cover and inclined downward. A short plate is fixedly connected to the lower position of the long plate and inclined downward, forming a structure that can only move downward and not upward.

[0015] Preferably, the bottom ends of the short plate and the long plate are on the same straight line.

[0016] Preferably, a connection port is provided at the connection between the sealing cover and one end of the through hole.

[0017] Preferably, respective air tubes are connected to the buccal inflation balloon and the tongue pressing balloon. The ends of the respective air tubes away from the buccal inflation balloon and the tongue pressing balloon are respectively connected to corresponding air pumps to facilitate the normal inflation of the buccal inflation balloon and the tongue pressing balloon.

[0018] Preferably, the cross-section of the external plate is arc-shaped, and an arc-shaped card is provided inside the external plate.

[0019] The beneficial effects of the endoscopic examination assistance device for digestive medicine of the present invention are as follows: By filling the buccal inflation balloon in the cheek and pressing the position of the tongue with the tongue pressing balloon, the endoscope insertion tube can always be in the middle position in the cavity, preventing the endoscope insertion tube from contacting the inside of the cavity, preventing the generation of excessive cavity fluid, and when the tongue moves downward as the patient lies on their side, triggering the corresponding inflow component to open and allowing oral fluid to enter the buccal inflation balloon, preventing the cavity fluid from flowing downward along the outer wall of the endoscope insertion tube and contacting the intestinal wall. Over time, adhesion is likely to occur, causing discomfort to the patient when the endoscope is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of an endoscopic examination assistance device for digestive medicine.

[0022] Figure 2 Side view of an auxiliary device for gastroscopy examination in the department of gastroenterology.

[0023] Figure 3 An auxiliary device for gastroscopy examination in the department of gastroenterology Figure 2 Cross-sectional view along A - A in it.

[0024] Figure 4 Top view of an auxiliary device for gastroscopy examination in the department of gastroenterology.

[0025] Figure 5 An auxiliary device for gastroscopy examination in the department of gastroenterology Figure 4 Cross-sectional view along B - B in it.

[0026] Figure 6 Structural schematic diagram of the inflow component of an auxiliary device for gastroscopy examination in the department of gastroenterology.

[0027] Figure 7 Structural schematic diagram of the one-way part of an auxiliary device for gastroscopy examination in the department of gastroenterology.

[0028] Label:

[0029] 100, gastroscope channel tube;

[0030] 200, external plate;

[0031] 300, cheek - puffing airbag;

[0032] 400, elastic telescopic rod Ⅰ;

[0033] 500, elastic tongue - pressing plate;

[0034] 600, tongue - pressing airbag;

[0035] 700, inflow component;

[0036] 701, through - hole;

[0037] 702, sliding rod;

[0038] 703, limiting mesh plate;

[0039] 704, top plate;

[0040] 705, compression spring;

[0041] 706, sealing plate;

[0042] 707, sealing plug;

[0043] 708, one - way part; 7081, sealing cover; 7082, air inlet; 7083, air outlet; 7084, connection port; 7085, long plate; 7086, short plate;

[0044] 709. Exhaust fan;

[0045] 800. Elastic telescopic rod II. Detailed implementation manners

[0046] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0047] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0048] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0049] Embodiment, referring to Figures 1-5 , this embodiment provides an auxiliary device for gastroscopy examination in the department of gastroenterology, including a gastroscope channel tube 100 for placing a gastroscope intubation. The gastroscope channel tube 100 is used for placing the gastroscope intubation. An external plate 200 is vertically fixed at the front end of the gastroscope channel tube 100. Elastic telescopic rods I 400 are fixed on both sides of the bottom end of the gastroscope channel tube 100. An elastic tongue clamping plate 500 is fixed at the end of the elastic telescopic rod I 400. A tongue pressing airbag 600 is fixed in the middle of the bottom end of the gastroscope channel tube 100. Elastic telescopic rods II 800 are vertically fixed on both sides of the middle of the gastroscope channel tube 100. A cheek inflating airbag 300 is fixed at the end of the elastic telescopic rod II 800. Contact is made between the lower part of the cheek inflating airbag 300 and the top of the elastic tongue clamping plate 500. An inflow assembly 700 is provided at the lower part of the cheek inflating airbag 300;

[0050] Among them, the elastic tongue clamping plates 500 are located at both ends of the tongue. When one of the elastic tongue clamping plates 500 moves with the tongue, it triggers the corresponding inflow assembly 700 to open, allowing oral fluid to enter the cheek inflating airbag 300.

[0051] During use, the cheek inflatable airbag 300 is placed in the patient's oral cavity, the external plate 200 is placed outside the mouth, two cheek inflatable airbags 300 are placed in the two cheeks, the elastic tongue pressing plate 500 is located at both ends of the tongue, and after the gastroscope channel tube 100 is placed in the middle position, the two cheek inflatable airbags 300 are inflated so that the gastroscope channel tube 100 is always in the middle position. If the gastroscope channel tube 100 is not in the middle, only the corresponding cheek inflatable airbag 300 needs to be inflated. Then, the tongue pressing airbag 600 is inflated to press the tongue. The person lies on their side, and the gastroscope intubation is inserted into the gastroscope channel tube 100, and the gastroscope channel tube 100 is adjusted to the middle position through the cheek inflatable airbag 300. When the patient's tongue droops downward due to gravity, the drooping of the tongue drives the elastic tongue pressing plate 500 to move downward synchronously. The top of the upper elastic tongue pressing plate 500 is separated from the lower part of the cheek inflatable airbag 300, opening the inflow component 700 of the upper elastic tongue pressing plate 500, so that the cavity fluid at the gap between the tongue and the teeth enters the upper cheek inflatable airbag 300 through the inflow component 700 from the upper elastic tongue pressing plate 500.

[0052] Refer to Figure 5 and Figure 6 As shown in FIGS. 7 and 8, the inflow component 700 includes a plurality of through holes 701 opened in the lower part of the cheek inflatable airbag 300. A sliding rod 702 is slidably connected in each through hole 701. A limiting mesh plate 703 is fixed in the middle of the through hole 701. The inner diameter of the mesh holes on the limiting mesh plate 703 should be set so that the cavity fluid can flow normally. The sliding rod 702 passes through the limiting mesh plate 703. A top plate 704 is fixed at one end of the sliding rod 702 close to the elastic tongue pressing plate 500. An extrusion spring 705 for driving the sliding rod 702 to move outward is provided between the top plate 704 and the limiting mesh plate 703. The extrusion spring 705 is located outside the sliding rod 702. The extrusion spring 705 is made of stainless steel to prevent the extrusion spring 705 from rusting, which is not conducive to long-term use. A sealing plate 706 is fixed at the end of the through hole 701 away from the elastic tongue pressing plate 500. A sealing plug 707 for plugging the sealing plate 706 is fixed at the other end of the sliding rod 702. An interference fit is provided between the sealing plate 706 and the sealing plug 707. One end of the through hole 701 away from the top plate 704 is communicated with a one-way member 708. The one-way member 708 can adopt a one-way valve structure. The top end of the one-way member 708 is communicated with an exhaust fan 709.

[0053] During use, when the elastic clamping tongue plate 500 is separated from the cheek inflating airbag 300, the sliding rod 702 is driven away from the one-way member 708 by the squeezing spring 705. The sliding rod 702 drives the sealing plug 707 away from the sealing disc 706, thereby opening the opening. The exhaust fan 709 is always in the open state. The exhaust fan 709 pumps the gas inside the cheek inflating airbag 300 to below the one-way member 708. During the gas flow, the cavity liquid in the through hole 701 is pumped into the cheek inflating airbag 300. The cavity liquid flowing from the elastic clamping tongue plate 500 to the cheek inflating airbag 300 also enters the cheek inflating airbag 300 through the through hole 701, passes through the limiting mesh plate 703. By using the one-way member 708, it can prevent air or cavity liquid from entering from below the one-way member 708 to above, and the cavity liquid can be collected inside the cheek inflating airbag 300.

[0054] Refer to Figure 6 and Figure 7 As shown in FIGS. 7 and 8, the one-way member 708 includes a sealing cover 7081 communicated with one end of the through hole 701. A central part of the top end of the sealing cover 7081 is provided with an air inlet 7082 communicated with the air outlet end of the exhaust fan 709. A sealing ring is added between the air inlet 7082 and the air outlet end of the exhaust fan 709. A central part of the bottom end of the sealing cover 7081 is provided with an air outlet 7083. An obstruction structure for hindering the fluid from flowing upward is arranged inside the sealing cover 7081. A connection port 7084 is provided at the connection part of the sealing cover 7081 and one end of the through hole 701.

[0055] During use, when the exhaust fan 709 is working, the gas inside the cheek inflating airbag 300 is pumped into the sealing cover 7081. The gas passes through the obstruction structure and is discharged from the air outlet 7083, so that the gas circulates inside the cheek inflating airbag 300. At the same time, the cavity liquid in the through hole 701 is sucked to the connection port 7084, then sucked into the sealing cover 7081 from the connection port 7084 and discharged from the air outlet 7083 on the sealing cover 7081.

[0056] Refer to Figure 7 As shown in FIGS. 14 and 15, the obstruction structure includes long plates 7085 distributed on the inner side of the sealing cover 7081 and inclined downward. A short plate 7086 is fixedly arranged inclined downward at a position below the long plates 7085.

[0057] During use, when the gas enters upward from the air outlet 7083, the short plate 7086 will divide the gas into two parts: one part only flows upward and the other part flows into the gap between the short plate 7086 and the inner wall of the sealing cover 7081. The gas flowing into the gap between the short plate 7086 and the inner wall of the sealing cover 7081 will flow downward due to the downward inclination of the long plate 7085. The gas flowing downward mixes with the gas flowing only upward, thus hindering the gas flowing only upward. Even if there is residual gas flowing upward, the combined action of the upper short plate 7086 and long plate 7085 continuously consumes the gas flowing only upward, so that no gas flows upward, achieving the effect of hindering the gas (fluid) from flowing upward.

[0058] Referring to Figure 7 , the lowermost end of the short board 7086 and the lowermost end of the long board 7085 are on the same straight line.

[0059] During use, it can facilitate the direct flow of gas downward.

[0060] Among them, the buccal inflation airbag 300 and the tongue pressing airbag 600 are externally connected with their respective corresponding tracheas, and the ends of the respective corresponding tracheas far away from the buccal inflation airbag 300 and the tongue pressing airbag 600 are respectively connected with corresponding air pumps.

[0061] During use, it can facilitate the inflation of the buccal inflation airbag 300 and the tongue pressing airbag 600.

[0062] Among them, the cross-section of the external plate 200 is arc-shaped, and the external plate 200 is internally provided with arc-shaped cards to facilitate the fitting with the outside of the mouth.

[0063] Working process: Place the external plate 200 on the outside of the patient's mouth, put the buccal inflation airbag 300 at the position of the cheek, the elastic tongue clamping plate 500 is located at both ends of the tongue, then first inflate the tongue pressing airbag 600 to press the tongue by the tongue pressing airbag 600 so that it will not move, and then inflate the buccal inflation airbag 300 to make the gastroscope channel tube 100 in the middle position. The patient lies on his side, insert the gastroscope intubation into the gastroscope channel tube 100, and the position of the gastroscope channel tube 100 can be adjusted by inflating the buccal inflation airbag 300, so that the gastroscope intubation is in the middle position and will not contact the cavity mucosa prematurely, thereby reducing bacterial infection. And when the patient lies on his side, the tongue moves downward, driving the elastic tongue clamping plate 500 to move downward, so that the elastic tongue clamping plate 500 is separated from the buccal inflation airbag 300. Driven by the extrusion of the spring 705, the sliding rod 702 moves away from the one-way member 708, and the sliding rod 702 drives the sealing plug 707 to move away from the sealing disc 706, thereby opening the opening. The exhaust fan 709 is always in the open state. The exhaust fan 709 pumps the gas inside the buccal inflation airbag 300 to below the one-way member 708. During the flow of the gas, the cavity fluid in the through hole 701 is pumped into the buccal inflation airbag 300. The cavity fluid flowing from the elastic tongue clamping plate 500 to the buccal inflation airbag 300 also enters the buccal inflation airbag 300 through the through hole 701, passes through the limiting mesh plate 703. By using the one-way member 708, air or cavity fluid can be prevented from entering from below the one-way member 708 to above, and the cavity fluid can be collected inside the buccal inflation airbag 300 for the collection of the cavity fluid.

[0064] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes, and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clauses are intended to cover the structures that perform the recited functions described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0065] In addition, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to the implementation of the present invention).

[0066] It should be understood that in the development of any actual implementation, in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, fabrication, and production.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A gastroenterology gastroscopy auxiliary device, characterized in that: The invention comprises a gastroscope channel tube (100) for placing a gastroscope cannula, wherein an external plate (200) is vertically fixed to the front end of the gastroscope channel tube (100), elastic telescopic rods I (400) are fixed to both sides of the bottom end of the gastroscope channel tube (100), an elastic tongue clamping plate (500) is fixed to the end of the elastic telescopic rod I (400), a tongue depressing airbag (600) is fixed to the middle of the bottom end of the gastroscope channel tube (100), and elastic telescopic rods II (800) are vertically fixed to both sides of the middle of the gastroscope channel tube (100), a cheek puffing airbag (300) is fixed to the end of the elastic telescopic rod II (800), the lower part of the cheek puffing airbag (300) is in contact with the top of the elastic tongue clamping plate (500), and the lower part of the cheek puffing airbag (300) is provided with an inlet assembly (700); The elastic tongue clamping plates (500) are located at both ends of the tongue, and when one of the elastic tongue clamping plates (500) moves with the tongue, it triggers the corresponding inlet assembly (700) to open and allow oral fluid to enter the cheek airbag (300).

2. The gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The inlet assembly (700) includes a plurality of through holes (701) provided at the lower portion of the cheek airbag (300), each of the through holes (701) being slidably connected to a sliding rod (702), a limiting mesh plate (703) being fixed in the middle of the through hole (701), the sliding rod (702) passing through the limiting mesh plate (703), a top plate (704) being fixed at one end of the sliding rod (702) close to the elastic tongue clamping plate (500), the top plate (704) and the limiting mesh plate (703) being slidably connected to each other. 03) is provided between the two parts, and a compression spring (705) is provided between the two parts for driving the sliding rod (702) to move outward; a sealing disk (706) is fixed to one end of the through hole (701) away from the elastic tongue clamping plate (500); a sealing plug (707) for blocking the sealing disk (706) is fixed to the other end of the sliding rod (702); a one-way piece (708) is connected to one end of the through hole (701) away from the top plate (704); and a fan (709) is connected to the top end of the one-way piece (708).

3. The gastroenterology gastroscopy auxiliary device according to claim 2, characterized in that: The pressing spring (705) is located outside the sliding rod (702).

4. The gastroenterology gastroscopy auxiliary device according to claim 2, characterized in that: The sealing disk (706) and the sealing plug (707) are interference fit.

5. The gastroenterology gastroscopy auxiliary device according to claim 2, characterized in that: The one-way member (708) comprises a sealing cover (7081) connected to one end of the through hole (701), an air inlet (7082) connected to the air outlet end of the exhaust fan (709) is provided in the middle of the top end of the sealing cover (7081), and an air outlet (7083) is provided in the middle of the bottom end of the sealing cover (7081), and the sealing cover (7081) has a built-in obstruction structure for obstructing the fluid from flowing upward.

6. The gastroenterology gastroscopy auxiliary device according to claim 5, characterized in that: The obstruction structure includes a long plate (7085) distributed inside the sealing cover (7081) and tilted downward, and a short plate (7086) is fixed at a position below the long plate (7085) and tilted downward.

7. The digestive internal medicine gastroscopy auxiliary device according to claim 6, characterized in that: The bottom end of the short board (7086) and the bottom end of the long board (7085) are on the same straight line.

8. The gastroenterology gastroscopy auxiliary device according to claim 5, characterized in that: A connection port (7084) is provided at the point where the sealing cover (7081) is connected to one end of the through hole (701).

9. The gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The cheek inflating airbag (300) and the tongue depressing airbag (600) are externally connected to corresponding tracheas, and the ends of the corresponding tracheas away from the cheek inflating airbag (300) and the tongue depressing airbag (600) are respectively connected to corresponding air pumps.

10. The gastroenterology gastroscopy auxiliary device according to claim 1, characterized in that: The cross section of the external plate (200) is in an arc shape, and an arc-shaped card is built into the external plate (200).

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