Air bag anti-reflux cannula for gastroscope treatment

Abstract

The invention belongs to the technical field of food processing equipment, and particularly relates to an air bag anti-reflux cannula for gastroscope treatment, the air bag anti-reflux cannula comprises a sleeve assembly, the sleeve assembly comprises a gastroscope sleeve, and the outer side of one end of the gastroscope sleeve is uniformly provided with a plurality of sliding adjusting grooves; and the sliding type air bag assembly is installed on the outer sides of the multiple sliding adjusting grooves, the sliding type air bag assembly comprises a first sliding block, the first sliding block is installed at one end of each sliding adjusting groove in a sliding mode, and the top of the first sliding block is rotationally connected with a first connecting rod arm. The anti-reflux airbag capable of changing the expansion diameter is adopted, only the inner wall of the esophageal inlet is slightly extruded in a normal state, the anti-reflux airbag can be pushed to expand through upward upwelling of gas in the stomach when reflux occurs, the esophageal inlet is temporarily and completely blocked, reflux is avoided, and after reflux is finished, the shrunk esophagus can push the anti-reflux airbag to reset, so that the anti-reflux effect is achieved. And a better anti-reflux effect can be achieved without highly expanding to continuously extrude the esophagus inlet.

Description

Technical Field

[0001] The invention belongs to the technical field of food processing equipment, and in particular relates to an air bag anti-reflux sleeve for gastroscopy treatment. Background Art

[0002] Gastroscopy is a common endoscopic procedure used to diagnose and treat gastric diseases. However, during gastroscopy, patients often experience reflux, that is, gastric contents flow back into the esophagus, causing discomfort and complications. In order to avoid and reduce such phenomena, patients are generally required to fast and abstain from water before gastroscopy. Even so, there is still a probability that gastric juice secreted by the patient's stomach will reflux. Therefore, during gastroscopy, a balloon anti-reflux cannula is also required to prevent gastric juice reflux.

[0003] The existing balloon anti-reflux sleeve is generally provided with an inflatable balloon in front of the sleeve. After the sleeve is inserted into the entrance of the patient's esophagus, air is inflated inside the inflatable balloon. However, due to the simultaneous upwelling of air and gastric fluid in the stomach during reflux, the esophagus will be squeezed and expanded. If the expansion of the balloon is too small, the expanded esophagus and the balloon will not fit completely, causing gastric fluid to flow out of the gap between the esophagus and the balloon. If the expansion of the balloon is too large, the esophagus will continue to expand, causing damage to the esophagus. Summary of the invention

[0004] The purpose of the present invention is to provide an air balloon anti-reflux sleeve for endoscopic treatment, which adopts an anti-reflux air balloon that can change the expansion diameter. Under normal circumstances, it only slightly squeezes the inner wall of the esophageal entrance. When reflux occurs, the upwelling of gastric gas can push the anti-reflux air balloon to expand, temporarily and completely block the esophageal entrance to avoid reflux. After the reflux ends, the contracted esophagus can push the anti-reflux air balloon to reset, and a better anti-reflux effect can be achieved without the need for high expansion and continuous squeezing of the esophageal entrance.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An airbag anti-reflux sleeve for gastroscopic treatment comprises a sleeve assembly, wherein the sleeve assembly comprises a gastroscopic sleeve, and a plurality of sliding adjustment grooves are evenly arranged on the outer side of one end of the gastroscopic sleeve;

[0007] A sliding airbag assembly, the sliding airbag assembly is installed on the outside of a plurality of sliding adjustment grooves, the sliding airbag assembly comprises a first sliding block, the first sliding block is slidably installed at one end of the sliding adjustment groove, the top of the first sliding block is rotatably connected to a first connecting rod arm, the other end inside the sliding adjustment groove is rotatably connected to a second connecting rod arm, and an anti-reflux airbag is fixed between the first connecting rod and the second connecting rod;

[0008] An airbag adjustment component, which is mounted on the other end of the gastroscope sleeve and is used to control the movement of the first sliding block to change the diameter of the anti-reflux airbag;

[0009] An inflatable component includes an inflatable airbag, the inflatable airbag is connected to an anti-reflux airbag, and the inflatable component is used to control the inflation and deflation of the anti-reflux airbag.

[0010] In a preferred embodiment, the airbag adjustment assembly includes a sliding sleeve, the other end of the gastroscope sleeve is provided with an annular limiting sliding groove, one end of the sliding sleeve is slidably set inside the annular limiting sliding groove, one end of the sliding sleeve is fixed with a plurality of connecting wire harnesses, and a pull wire channel is provided inside the gastroscope sleeve and at a position corresponding to each sliding adjustment groove, the connecting wire harness passes through the pull wire channel, and one end of the connecting wire harness is fixed to the first sliding block.

[0011] In a preferred embodiment, a guide limit slot is provided on the outer side of one end of the sliding sleeve, a guide column that fits with the guide limit slot is provided on the inner wall of the annular limit sliding slot, and a first threaded adjustment knob is threadedly connected to the outer side of the other end of the sliding sleeve, and one end of the first threaded adjustment knob is rotatably connected to the inflation assembly.

[0012] In a preferred embodiment, a second sliding block is slidably connected to the outside of the gastroscope sleeve and located in the middle of the sliding adjustment groove, the top of the second sliding block is fixed to the inner side of the anti-reflux airbag, a through hole is provided in the middle of the second sliding block, the connecting wire harness passes through the through hole and is connected to the first sliding block, and an elastic member is provided between the first sliding block and the second sliding block and located on the outside of the connecting wire harness.

[0013] In a preferred embodiment, the expansion balloon is arranged on the outside of the other end of the gastroscope sleeve, and a plurality of inflation pipes are evenly arranged inside the gastroscope sleeve, one end of the inflation pipe is connected to the inner side of the expansion balloon, and the other end of the inflation pipe is connected to the second connecting rod arm, the interior of the second connecting rod arm is hollow, and the interior of the second connecting rod arm is connected to the anti-reflux balloon.

[0014] In a preferred embodiment, the inflation component also includes a second limit block, which is fixed to the outer side of the other end of the gastroscope sleeve, and a side surface of the second limit block is provided with an annular rotating protrusion, which is installed on one side surface of the first threaded adjustment knob, and the first threaded adjustment knob is rotatably connected to the second limit block.

[0015] In a preferred embodiment, the inflation component also includes a first limit block plate, which is fixed to the outside of the gastroscope sleeve, and the expansion air bag is arranged between the first limit block plate and the second limit block plate. A second threaded adjustment knob is also arranged between the first limit block plate and the second limit block plate, and one end of the second threaded adjustment knob is in contact with the expansion air bag.

[0016] In a preferred embodiment, threads are provided on the outer surface of the gastroscope sleeve at a position where the second threaded adjustment knob is installed, and the second threaded adjustment knob is threadedly connected to the gastroscope sleeve.

[0017] In a preferred embodiment, an engaging outer sleeve is slidably provided on the outer side of the gastroscope sleeve.

[0018] In a preferred embodiment, a front end protective collar is fixed to one end of the gastroscope sleeve.

[0019] The technical effects achieved by the present invention are:

[0020] The present invention can change the expansion diameter of the anti-reflux airbag by arranging a sliding airbag assembly and cooperating with the airbag adjustment assembly. The sliding sleeve can be driven to move by rotating the first threaded adjustment knob, and the connecting harness can be pulled to drive the first sliding block to slide. The sliding of the first sliding block will change the angle between the second connecting arm and the first connecting arm, thereby causing the anti-reflux airbag to expand outward, changing the diameter of the anti-reflux airbag, and achieving the effect of adjusting the anti-reflux airbag with different diameters according to different patients.

[0021] The present invention provides a first sliding block that can slide movably, and the first sliding block can push the anti-reflux airbag to change its diameter during sliding. When gastric juice reflux occurs, the air in the stomach impacts the anti-reflux airbag, which can move the anti-reflux airbag to a section of the esophagus. At the same time, the first sliding block slides to reduce the angle between the first connecting arm and the second connecting arm, so that the diameter of the anti-reflux airbag expands, and it can fit more closely with the inner wall of the esophagus to prevent gastric juice from flowing out. After the reflux ends, the anti-reflux airbag is reset by the push of the elastic member and the contraction and squeezing of the inner wall of the esophagus. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of one side of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the other side of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection structure between the sleeve assembly and the sliding airbag assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection structure between the sleeve assembly and the airbag adjustment assembly of the present invention;

[0026] Figure 5 It is a partial structural exploded diagram of the present invention;

[0027] Figure 6 It is a schematic diagram of the structural cross section of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Sleeve assembly; 2. Sliding airbag assembly; 3. Airbag adjustment assembly; 4. Inflation assembly; 11. Gastroscope sleeve; 12. Front end protection ring; 13. Sliding adjustment groove; 14. Engaging outer sleeve; 15. Pull wire channel; 16. Inflation pipe; 17. Annular limit sliding groove; 21. First sliding block; 22. First connecting rod arm; 23. Anti-reflux airbag; 24. Second sliding block; 25. Second connecting rod arm; 26. Elastic member; 31. Sliding sleeve; 32. First threaded adjustment knob; 33. Connecting harness; 41. First limit baffle; 42. Second limit baffle; 43. Second threaded adjustment knob; 44. Inflatable airbag. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Please see attached Figures 1 to 6As shown, an airbag anti-reflux sleeve for gastroscopic treatment includes a sleeve assembly 1, wherein the sleeve assembly 1 includes a gastroscope sleeve 11, a plurality of sliding adjustment grooves 13 are evenly provided on the outer side of one end of the gastroscope sleeve 11, an engaging outer sleeve 14 is slidably provided on the outer side of the gastroscope sleeve 11, and the engaging outer sleeve 14 is made of flexible plastic, and a front end protective collar 12 is fixed to one end of the gastroscope sleeve 11;

[0035] The gastroscope sleeve 11 is used as the sleeve of the gastroscope tube to guide the gastroscope through the patient's esophagus into the stomach. At the same time, the front end protection ring 12 arranged at one end of the gastroscope sleeve 11 can play a role in contacting the patient's esophagus during the process of the gastroscope sleeve 11 entering the patient's esophagus. The front end protection ring 12 is made of a flexible material, which can reduce the discomfort caused by inserting the gastroscope sleeve 11. After the insertion of the gastroscope sleeve 11 is completed, the patient's lips and teeth can be bitten on the surface of the biting outer sleeve 14 by sliding the biting outer sleeve 14. The material of the biting outer sleeve 14 is also a flexible material, which can prevent the teeth from directly contacting the harder gastroscope sleeve 11, thereby reducing the discomfort of the lips and teeth.

[0036] A sliding airbag assembly 2, which is installed on the outside of the plurality of sliding adjustment grooves 13. The sliding airbag assembly 2 includes a first sliding block 21, which is slidably installed at one end of the sliding adjustment groove 13. The top of the first sliding block 21 is rotatably connected to a first connecting arm 22, and the other end inside the sliding adjustment groove 13 is rotatably connected to a second connecting arm 25. An anti-reflux airbag 23 is fixed between the first connecting arm 22 and the second connecting arm 25.

[0037] An airbag adjustment component 3, which is installed at the other end of the gastroscope sleeve 11, and is used to control the movement of the first sliding block 21 to change the diameter of the anti-reflux airbag 23;

[0038] The inflatable component 4 includes an expansion airbag 44 , and the expansion airbag 44 is connected to the anti-reflux airbag 23 . The inflatable component 4 is used to control the inflation and deflation of the anti-reflux airbag 23 .

[0039] In a preferred embodiment, please refer to Figure 4 The airbag adjustment component 3 includes a sliding sleeve 31, and the other end of the gastroscope sleeve 11 is provided with an annular limiting sliding groove 17. One end of the sliding sleeve 31 is slidably set inside the annular limiting sliding groove 17. One end of the sliding sleeve 31 is fixed with a plurality of connecting wires 33. A pull wire channel 15 is provided inside the gastroscope sleeve 11 and at a position corresponding to each sliding adjustment groove 13. The connecting wire harness 33 passes through the pull wire channel 15, and one end of the connecting wire harness 33 is fixed to the first sliding block 21.

[0040] In this embodiment, the expansion diameter of the anti-reflux airbag 23 is controlled by controlling the sliding sleeve 31 to slide toward the end of the gastroscope sleeve 11 away from the front end protection ring 12. The sliding simultaneously drives the connecting harness 33 connected thereto to move, thereby pulling the first sliding block 21 connected to the connecting harness 33 to slide in the sliding adjustment groove 13, thereby reducing the angle between the first connecting arm 22 and the second connecting arm 25, pushing the anti-reflux airbag 23 to expand outward, and changing the diameter of the anti-reflux airbag 23.

[0041] Next, please refer to Figure 4 A guide limit slide groove is arranged on the outer side of one end of the sliding sleeve 31, and a guide column which fits with the guide limit slide groove is arranged on the inner wall of the annular limit slide groove 17. A first threaded adjustment knob 32 is threadedly connected to the outer side of the other end of the sliding sleeve 31, and one end of the first threaded adjustment knob 32 is rotatably connected to the inflation component 4.

[0042] In the above, the guide limit slot is used in conjunction with the guide column, so that when the sliding sleeve 31 and the first threaded adjustment knob 32 rotate, the sliding sleeve 31 cannot drive the first threaded adjustment knob 32 to rotate together, but controls the first threaded adjustment knob 32 to move to one end under the push of the limit of the guide column and the thread.

[0043] Secondly, please also refer to Figure 3 and Figure 6 A second sliding block 24 is slidably connected to the outside of the gastroscope sleeve 11 and located in the middle of the sliding adjustment groove 13. The top of the second sliding block 24 is fixed to the inner side of the anti-reflux airbag 23. A through hole is provided in the middle of the second sliding block 24. The connecting harness 33 passes through the through hole and is connected to the first sliding block 21. An elastic member 26 is provided between the first sliding block 21 and the second sliding block 24 and located on the outside of the connecting harness 33.

[0044] In the above, the second sliding block 24 is arranged on the inner side of the anti-reflux airbag 23 and is slidably connected with the sliding adjustment groove 13. When the anti-reflux airbag 23 moves to expand its diameter, the second sliding block 24 moves along with it, which can play the role of closing the sliding adjustment groove 13, thereby preventing the air and gastric juice in the stomach from leaking through the sliding adjustment groove 13 during the reflux process and entering the patient's oral cavity and airway. At the same time, after the closure, the reflux air in the stomach impacts the anti-reflux airbag 23, which can also make the anti-reflux airbag 23 expand its diameter better and avoid the reflux phenomenon.

[0045] Furthermore, a through hole opened in the middle of the second sliding block 24 is used for the movement of the connecting harness 33, so as to prevent the setting of the second sliding block 24 from affecting the control of the active expansion of the anti-reflux airbag 23. At the same time, the elastic member 26 arranged between the second sliding block 24 and the first sliding block 21 can also provide thrust after the backflow ends, pushing the sliding sleeve 31 to reset, thereby reducing the diameter of the anti-reflux airbag 23 to restore the initially set diameter.

[0046] For further information, please also refer to Figure 5 and Figure 6 The inflation airbag 44 is arranged on the outside of the other end of the gastroscope sleeve 11, and a plurality of inflation pipes 16 are evenly arranged inside the gastroscope sleeve 11. One end of the inflation pipe 16 is connected to the inner side of the inflation airbag 44, and the other end of the inflation pipe 16 is connected to the second connecting rod arm 25. The inside of the second connecting rod arm 25 is hollow, and the inside of the second connecting rod arm 25 is connected to the anti-reflux airbag 23.

[0047] In this embodiment, the anti-reflux airbag 23 is inflated by the expansion airbag 44 being squeezed, and the internal gas enters the second connecting arm 25 through the inflation pipe 16, and then enters the anti-reflux airbag 23, causing the anti-reflux airbag 23 to inflate, wherein the second connecting arm 25 serves as a connecting component connecting the anti-reflux airbag 23 and the inflation pipe 16, and one end of the second connecting arm 25 is connected to the rotating connecting part of the gastroscope sleeve 11 and one end of the inflation pipe 16, and the connecting part is airtightly sealed to prevent gas leakage.

[0048] It should be noted that the second link arm 25 is a hollow structure, and two rotating shafts are provided at one end of the second link arm 25 away from the anti-reflux airbag 23, one of which is hollow, and the two rotating shafts are rotatably connected to one end of the sliding adjustment groove 13, wherein the hollow rotating shaft is located inside one end of the inflation pipe 16, and a sealing ring is also provided between the hollow rotating shaft and the inflation pipe 16, and the above-mentioned hollow rotating shaft is rotatably connected to the inflation pipe 16.

[0049] Please refer again Figure 6 The inflation component 4 also includes a second limit baffle 42, which is fixed to the outside of the other end of the gastroscope sleeve 11. A side surface of the second limit baffle 42 is provided with an annular rotating protrusion, which is installed on one side surface of the first threaded adjustment knob 32, and the first threaded adjustment knob 32 is rotatably connected to the second limit baffle 42.

[0050] As mentioned above, the annular rotating protrusion provided on one side of the second limit baffle 42 is used to connect with the first threaded adjusting knob 32 to keep the first threaded adjusting knob 32 from moving during the rotation process, so that the sliding sleeve 31 can be pushed out under the push of the thread.

[0051] Next, please refer to Figure 6 The inflation component 4 also includes a first limit baffle 41, which is fixed to the outside of the gastroscope sleeve 11. The expansion air bag 44 is arranged between the first limit baffle 41 and the second limit baffle 42. A second threaded adjustment knob 43 is also arranged between the first limit baffle 41 and the second limit baffle 42. One end of the second threaded adjustment knob 43 is fitted with the expansion air bag 44. A thread is arranged on the outer surface of the gastroscope sleeve 11 and at the position where the second threaded adjustment knob 43 is installed. The second threaded adjustment knob 43 is threadedly connected to the gastroscope sleeve 11.

[0052] As mentioned above, when in use, by rotating the second threaded adjustment knob 43, driven by the threaded connection, the second threaded adjustment knob 43 can strictly move one end of the sleeve assembly 1, and the expansion airbag 44 will be squeezed while moving. At this time, the expansion airbag 44 is squeezed and contracted, and the gas inside the expansion airbag 44 is transported to the anti-reflux airbag 23, so that the anti-reflux airbag 23 expands, and the material of the expansion airbag 44 is elastic rubber material. When the second threaded adjustment knob 43 is adjusted to the original position, the expansion airbag 44 can automatically expand, and the gas inside the anti-reflux airbag 23 is automatically drawn back into the expansion airbag 44, and the first limit baffle 41 and the second limit baffle 42 are both used to limit the range of movement and deformation of the second threaded adjustment knob 43 and the expansion airbag 44.

[0053] The working principle of the present invention is as follows: when in use, the sleeve assembly 1 is inserted into the patient's oral cavity, and the sliding airbag assembly 2 installed at the front end of the sleeve assembly 1 enters the patient's esophageal entrance, and then the first threaded adjustment knob 32 is rotated to drive the sliding sleeve 31 to move toward the other end of the gastroscope sleeve 11. When the sliding sleeve 31 moves, the connecting harness 33 is driven to move together, and the first sliding block 21 is pulled to slide inside the sliding adjustment groove 13. The first sliding block 21 can push the first connecting arm 22 to rotate while sliding, and the rotation simultaneously causes the anti-reflux airbag 23 located between the first connecting arm 22 and the second connecting arm 25 to expand outward, and when the anti-reflux airbag 23 is expanded to be about to fit the inner wall of the patient's esophagus, it stops, and then the second threaded adjustment knob 43 is rotated to squeeze the expansion airbag 44 to contract, and the gas inside the expansion airbag 44 enters the second connecting arm 25 through the inflation pipe 16, and then enters the anti-reflux airbag 2 3, the anti-reflux airbag 23 is expanded to completely contact the inner wall of the patient's esophagus and slightly squeeze the inner wall of the patient's esophagus. When the patient has reflux symptoms, the air and gastric juice in the patient's stomach reflux, and the air impacts the anti-reflux airbag 23. Since the anti-reflux airbag 23 is in contact with the inner wall of the patient's esophagus, when the anti-reflux airbag 23 is pushed by the reflux gas, the first connecting rod arm 22 will slide inside the sliding adjustment groove 13, so that the anti-reflux airbag 23 is expanded outward, avoiding the reflux liquid from squeezing the esophagus and causing the esophageal entrance to expand, so that gastric juice refluxes to the patient's oral cavity or airway. After the reflux ends, the gastric juice that has not flowed out flows back into the stomach, and the anti-reflux airbag 23 squeezed and expanded by the gastric gas returns to its original position under the action of the elastic member 26 pushing the first sliding block 21 to reset, avoiding long-term squeezing of the inner wall of the esophagus to cause high expansion and thus causing discomfort, which is safer and can also reduce the damage to the patient's esophagus.

[0054] 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 balloon anti-reflux sleeve for gastroscopy treatment, characterized in that: The invention comprises a sleeve assembly (1), wherein the sleeve assembly (1) comprises a gastroscope sleeve (11), and a plurality of sliding adjustment grooves (13) are evenly arranged on the outer side of one end of the gastroscope sleeve (11); A sliding airbag assembly (2), the sliding airbag assembly (2) being mounted on the outside of a plurality of sliding adjustment grooves (13), the sliding airbag assembly (2) comprising a first sliding block (21), the first sliding block (21) being slidably mounted on one end of the sliding adjustment groove (13), the top of the first sliding block (21) being rotatably connected to a first connecting arm (22), the other end inside the sliding adjustment groove (13) being rotatably connected to a second connecting arm (25), an anti-reflux airbag (23) being fixed between the first connecting arm (22) and the second connecting arm (25); An airbag adjustment component (3), the airbag adjustment component (3) being mounted on the other end of the gastroscope sleeve (11), the airbag adjustment component (3) being used to control the movement of the first sliding block (21) to change the diameter of the anti-reflux airbag (23); An inflatable component (4), the inflatable component (4) comprising an inflatable airbag (44), the inflatable airbag (44) being connected to an anti-reflux airbag (23), and the inflatable component (4) being used to control the inflation and deflation of the anti-reflux airbag (23).

2. The gastroscopy-based anti-reflux cannula according to claim 1, characterized in that: The airbag adjustment component (3) comprises a sliding sleeve (31), the other end of the gastroscope sleeve (11) is provided with an annular limiting sliding groove (17), one end of the sliding sleeve (31) is slidably arranged inside the annular limiting sliding groove (17), one end of the sliding sleeve (31) is fixed with a plurality of connecting wire harnesses (33), a pull wire channel (15) is provided inside the gastroscope sleeve (11) and at a position corresponding to each sliding adjustment groove (13), the connecting wire harness (33) passes through the pull wire channel (15), and one end of the connecting wire harness (33) is fixed to the first sliding block (21).

3. The balloon anti-reflux sleeve for gastroscopic treatment according to claim 2, characterized in that: A guide limit slide groove is arranged on the outer side of one end of the sliding sleeve (31), and a guide column which is fitted with the guide limit slide groove is arranged on the inner wall of the annular limit slide groove (17). A first threaded adjustment knob (32) is threadedly connected to the outer side of the other end of the sliding sleeve (31), and one end of the first threaded adjustment knob (32) is rotatably connected to the inflation component (4).

4. The balloon anti-reflux sleeve for gastroscopic treatment according to claim 2, characterized in that: A second sliding block (24) is slidably connected to the outside of the gastroscope sleeve (11) and located in the middle of the sliding adjustment groove (13); the top of the second sliding block (24) is fixed to the inner side of the anti-reflux airbag (23); a through hole is provided in the middle of the second sliding block (24); the connecting harness (33) passes through the through hole and is connected to the first sliding block (21); an elastic member (26) is provided between the first sliding block (21) and the second sliding block (24) and located on the outside of the connecting harness (33).

5. The balloon anti-reflux sleeve for gastroscopic treatment according to claim 1, characterized in that: The expansion balloon (44) is arranged on the outside of the other end of the gastroscope sleeve (11), and a plurality of inflation pipes (16) are evenly arranged inside the gastroscope sleeve (11). One end of the inflation pipe (16) is connected to the inner side of the expansion balloon (44), and the other end of the inflation pipe (16) is connected to the second connecting rod arm (25). The inside of the second connecting rod arm (25) is hollow, and the inside of the second connecting rod arm (25) is connected to the anti-reflux balloon (23).

6. The balloon anti-reflux sleeve for gastroscopy treatment according to claim 1, characterized in that: The inflation component (4) also includes a second limit baffle (42), which is fixed to the outer side of the other end of the gastroscope sleeve (11), and a side surface of the second limit baffle (42) is provided with an annular rotating protrusion, which is installed on a side surface of the first threaded adjustment knob (32), and the first threaded adjustment knob (32) is rotatably connected to the second limit baffle (42).

7. The balloon anti-reflux sleeve for gastroscopic treatment according to claim 6, characterized in that: The inflation component (4) further comprises a first limit baffle (41), wherein the first limit baffle (41) is fixed to the outer side of the gastroscope sleeve (11), and the expansion air bag (44) is arranged between the first limit baffle (41) and the second limit baffle (42), and a second threaded adjustment knob (43) is also arranged between the first limit baffle (41) and the second limit baffle (42), and one end of the second threaded adjustment knob (43) is in contact with the expansion air bag (44).

8. The balloon anti-reflux sleeve for gastroscopic treatment according to claim 7, characterized in that: A thread is provided on the outer surface of the gastroscope sleeve (11) at a position where the second thread adjustment knob (43) is installed, and the second thread adjustment knob (43) is threadedly connected to the gastroscope sleeve (11).

9. The balloon anti-reflux sleeve for gastroscopic treatment according to claim 1, characterized in that: An engaging outer sleeve (14) is slidably provided on the outer side of the gastroscope sleeve (11).

10. The balloon anti-reflux sleeve for gastroscopy treatment according to claim 1, characterized in that: A front end protection ring (12) is fixed to one end of the gastroscope sleeve (11).

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