Multifunctional gastroscopy oral pad

Abstract

The invention discloses a multifunctional gastroscopy oral pad and relates to the field of gastroscopy, the multifunctional gastroscopy oral pad comprises a guide block, an insertion block and a bandage, the insertion block is fixed on the rear side of the guide block and extends into the oral cavity of a patient to provide positioning support for the guide block, and the bandage is fixed on the outer side of the guide block and used for binding and fixing the guide block. A guide groove is formed in the guide block and the insertion block in a penetrating mode and used for allowing a gastroscope tube to penetrate through, and an annular liquid coating ring is arranged in the guide block. According to the multifunctional gastroscopy oral pad, the annular liquid smearing ring is arranged in the guide block, when a gastroscope tube is inserted, lubricant smearing can be conducted on the surface of the gastroscope tube through the liquid smearing ring, smearing can be conducted on an insertion tube before insertion, smearing is not conducted on a tube body which is not inserted, and pollution to the lubricant caused by premature smearing is avoided; and the early-stage preparation workload of related personnel is also reduced.

Description

Technical Field

[0001] This invention relates to the field of gastroscopy, specifically to a multifunctional gastroscopy mouth pad. Background Technology

[0002] Gastroscopy involves inserting a flexible fiber optic tube, approximately 1-1.5 meters long and 1 centimeter in diameter, equipped with a light source and a miniature camera, through the mouth, pharynx, esophagus, cardia, and stomach to the descending duodenum. This allows direct observation of lesions in the esophageal, gastric, and duodenal mucosa, and tissue samples can be taken for pathological examination. Gastroscopy is the primary diagnostic tool for esophageal, gastric, and duodenal diseases and the gold standard for early screening of esophageal, gastric, and duodenal cancers. During gastroscopy, a mouth pad is needed to provide support and protection for the endoscope tube. A multifunctional gastroscopy mouth pad, disclosed on January 16, 2020 (application number CN202010045642.9), utilizes the interaction of a mask, Velcro, and oxygen tube to allow the patient to comfortably perform the procedure. If breathing difficulties occur, oxygen can be supplied to the patient through an oxygen tube to prevent suffocation, which would affect the progress of the gastroscopy. The mask also provides better comfort for the patient. Application number CN201911085653.3, published on February 14, 2020, discloses a nursing examination device to reduce the inconvenience caused by gagging during gastroscopy. The device rotates a first metal wire through a rotating torsion device, which in turn rotates a metal head. The lower part of the metal head hose rotates, and the metal head drives an adjustment head to rotate. The adjustment head moves a second metal wire to adjust the position of the examination head. This structure solves the problem that existing gastroscopy devices increase the patient's gagging sensation during operation, leading to poor detection results and low detection efficiency. When inserting the tube, in order to ensure smooth insertion, lubricant needs to be applied manually to the surface of the tube. However, the lubricant is exposed during insertion and is easily contaminated. Furthermore, the lubricant on the surface of the mouthpiece can be scraped off when the tube passes through it, affecting the subsequent lubrication effect. In addition, the mouthpiece has a relatively limited function. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional gastroscopy mouth pad to solve the problems mentioned in the background art, which require manual application of lubricant to the surface of the tube to ensure smooth insertion, and the lubricant is easily contaminated when exposed during insertion, and is also easily scraped off when the tube passes through the mouth pad.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional endoscopy mouth pad, comprising a guide block, an insertion block, and a strap. The insertion block is fixed to the rear side of the guide block and extends into the patient's oral cavity to provide positioning support for the guide block. A strap is fixed to the outer side of the guide block for binding and fixing the guide block. A guide groove is provided through the guide block and the insertion block for the endoscope tube to pass through. An annular lubrication ring is provided inside the guide block for applying lubricating fluid to the surface of the endoscope tube. The lubrication ring is rotatably installed inside the guide block, and the center line of the lubrication ring coincides with the center line of the guide groove. Dispensing ports are evenly distributed on the inner side of the lubrication ring, and a rotation control mechanism is provided on the outer side of the lubrication ring. The structure provides rotational power to the coating ring, enabling it to rotate. A connecting cover is fixed to the front side of the coating ring. The connecting cover has a hollow structure and is annular. A push plate is slidably installed inside the connecting cover. The movement of the push plate inside the connecting cover forces the liquid inside the connecting cover into the coating ring and then out. A movement control mechanism is connected to the front side of the push plate to control its position inside the connecting cover. A guide wheel is provided inside the guide block. The guide wheel is located on the front side of the coating ring and is symmetrically arranged about the center line of the guide block to guide the movement of the endoscope tube. A connecting shaft is fixed to the end of the guide wheel, and the guide wheel is rotatably installed inside the guide block through the connecting shaft.

[0005] To further optimize this technical solution, the insertion block is equipped with a saliva extraction mechanism to draw saliva out of the mouth.

[0006] To further optimize this technical solution, the saliva extraction mechanism includes an extraction tube, a connecting tube, an external connecting tube, and an auxiliary hole; The suction tube is located on the rear side of the insertion block; A connecting tube is installed at the upper end of the suction tube and connects to the inside of the suction tube. The external tube is fixed to the end of the connecting tube and connected to the external extraction mechanism to provide suction for the liquid extraction tube; Auxiliary holes are evenly spaced at the lower end of the suction tube.

[0007] To further optimize this technical solution, a coating plate is fixed to the inner side of the coating ring, and the coating plate and the liquid outlet are staggered. A replenishment tube is fixed to the outer surface of the connecting cover in front of the coating ring. An opening is provided above the guide block to allow the upper end of the replenishment tube to leak out. A one-way conduction mechanism is provided inside the replenishment tube to prevent the liquid in the connecting cover from being discharged outward through the replenishment tube.

[0008] To further optimize this technical solution, the unidirectional conduction mechanism includes a baffle, a passage, a sealing plate, a first spring, and a support plate; The baffle is fixed inside the replenishment tube; The opening is located in the middle of the baffle; A sealing plate is installed below the opening to cover it. The first spring is located below the sealing plate to provide upward thrust to the sealing plate; A support plate, fixed inside the supplementary tube, provides support for the lower end of the first spring.

[0009] To further optimize this technical solution, the rotation control mechanism includes a transmission gear ring, a transmission gear, a mounting shaft, and a bevel gear; The transmission gear ring is fixed to the outside of the connecting cover and rotates synchronously with the connecting cover; The transmission gear is positioned on the outside of the transmission gear ring and forms a meshing connection between the transmission gear ring and the transmission gear ring. The mounting shaft is fixed in the middle of the transmission gear, and a rotatable connection is formed between the mounting shaft and the guide block; A bevel gear is fixed to the front side of the mounting shaft, and the mounting shaft is connected to the connecting shaft through the bevel gear.

[0010] To further optimize this technical solution, the movement control mechanism includes a threaded rod, a movable shaft, a connecting gear, and a fixed ring; A threaded rod is rotatably mounted on the front side of the push plate, and the front end of the threaded rod passes through the connecting cover and the connecting cover to form a threaded connection; The movable shaft is installed inside the threaded rod and forms a sliding structure between the threaded rod and the threaded rod. A transmission block is fixed on the surface of the movable shaft. The movable shaft drives the threaded rod to rotate through the transmission block. A rotatable connection is formed between the movable shaft and the guide block. Connecting gears are fixed to the front side of the movable shaft; A retaining ring is fixed inside the guide block, and the retaining ring is located outside the connecting gear to form a meshing connection between the connecting gear and the connecting gear.

[0011] To further optimize this technical solution, a centrifugal locking mechanism is provided below the connecting shaft to lock it when the connecting shaft rotates at an accelerated speed.

[0012] To further optimize this technical solution, the centrifugal locking mechanism includes an auxiliary disk, a locking block, a second spring, a centrifugal block, and a locking groove; An auxiliary plate is fixed below the connecting shaft; A locking block is installed inside the auxiliary disk and between the auxiliary disks to form a horizontal sliding structure; The second spring, located on the outside of the locking block, provides an inward pushing force to the locking block; The centrifugal block is fixed to the inner end of the locking block; The locking groove is formed at an angle with the center of the auxiliary disk inside the guide block, and the locking groove and the locking block form an engaging structure.

[0013] To further optimize this technical solution, an elastic clip is provided on the outer side of the insertion block, and the elastic clip has an arc-shaped structure design and is symmetrically distributed about the insertion block.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The guide block can be strapped to the patient's head for use, allowing the insertion block to be inserted into the patient's mouth. Subsequently, the endoscope tube can be inserted into the patient's body through the guide groove. The guide block provides guidance and positioning for the tube, ensuring the stability of the subsequent insertion. A ring-shaped lubricant ring is set inside the guide block. When inserting the endoscope tube, the lubricant can be applied to the surface of the endoscope tube through the lubricant ring. The lubricant can be applied before insertion, but not before insertion. This avoids contamination of the lubricant by applying it too early and also reduces the amount of preparation work for relevant personnel. The rotation of the coating ring can improve the uniformity of the coating, so that the lubricant on the surface of the endoscope tube can be evenly coated. The coating ring is equipped with a replenishment tube to replenish the lubricant. When the coating ring rotates, the meshing of the connecting gear and the fixing ring can control the automatic movement of the push plate to press out the lubricant and automatically apply the lubricant to the surface of the endoscope tube. The guide wheel assists in the insertion of the endoscope tube, and the movement of the endoscope tube drives the guide wheel to rotate. The rotation of the guide wheel provides power for the rotation of the smear ring, so that the smearing and insertion can be carried out synchronously. By setting a centrifugal locking mechanism below the connecting shaft, the guide wheel can be locked when it rotates too fast, thereby preventing the endoscope tube from being pulled out of the patient's body too quickly due to accidental pulling or other reasons, which could cause injury to the patient and improve the safety of subsequent tube removal. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a schematic diagram of the front structure of the present invention; Figure 5 This is a schematic diagram of the main cross-sectional structure of the guide block of the present invention; Figure 6 This is a schematic diagram of the main cross-sectional structure of the connecting cover of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point a; Figure 8 This is a top-section schematic diagram of the connecting cover structure of the present invention; Figure 9This is a schematic diagram of the main cross-sectional structure of the threaded rod of the present invention; Figure 10 This is a schematic diagram of the main structure of the guide wheel of the present invention; Figure 11 This is a top-section schematic diagram of the auxiliary disk structure of the present invention.

[0016] In the diagram: 1. Guide block; 2. Insertion block; 3. Strap; 4. Guide groove; 5. Suction tube; 6. Connecting tube; 7. External tube; 8. Auxiliary hole; 9. Coating ring; 10. Outlet; 11. Coating plate; 12. Connecting cover; 13. Push plate; 14. Replenishment tube; 15. Baffle; 16. Through port; 17. Sealing plate; 18. First spring; 19. Support plate; 20. Transmission gear ring; 21. Transmission gear; 22. Mounting shaft; 23. Threaded rod; 24. Movable shaft; 25. Connecting gear; 26. Fixing ring; 27. Transmission block; 28. Guide wheel; 29. ​​Connecting shaft; 30. Bevel gear; 31. Auxiliary disc; 32. Locking block; 33. Second spring; 34. Centrifugal block; 35. Locking groove; 36. Elastic clip. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-11 The present invention provides the following technical solution: a multifunctional gastroscopy examination mouth pad, including a guide block 1, an insertion block 2 and a strap 3. The insertion block 2 is fixed to the rear side of the guide block 1 and extends into the patient's oral cavity to provide positioning support for the guide block 1. The outer side of the guide block 1 is fixed with a strap 3 for binding and fixing the guide block 1. Example

[0019] The invention provides a technical solution, disclosing that a guide groove 4 is internally provided in both the guide block 1 and the insertion block 2 for the passage of a gastroscope tube, and an annular lubrication ring 9 is provided inside the guide block 1 for applying lubricant to the surface of the gastroscope tube. The lubrication ring 9 is rotatably mounted inside the guide block 1, and the center line of the lubrication ring 9 coincides with the center line of the guide groove 4. Discharge ports 10 are evenly distributed on the inner side of the lubrication ring 9, and a rotation control mechanism is provided on the outer side of the lubrication ring 9 to provide rotational power for its rotation. A connecting cover 12 is fixed to the front side of the lubrication ring 9. The connecting cover 12 has a hollow internal structure. 2. The connecting cover 12 has a ring structure. A push plate 13 is slidably installed inside the connecting cover 12. The movement of the push plate 13 within the connecting cover 12 forces the liquid inside the connecting cover 12 into the smearing ring 9 and then out. A movement control mechanism is connected to the front side of the push plate 13 to control its position within the connecting cover 12. A guide wheel 28 is provided inside the guide block 1. The guide wheel 28 is located in front of the smearing ring 9 and is symmetrically arranged about the center line of the guide block 1 to guide the movement of the endoscope tube. A connecting shaft 29 is fixed to the end of the guide wheel 28. The guide wheel 28 is rotatably mounted inside the guide block 1 through the connecting shaft 29 and inserted into the block 2. A saliva extraction mechanism is provided to draw saliva outward from the oral cavity. The saliva extraction mechanism includes a suction tube 5, a connecting tube 6, an external connecting tube 7, and auxiliary holes 8. The suction tube 5 is located behind the insertion block 2. The connecting tube 6 is located at the upper end of the suction tube 5 and connects to the inside of the suction tube 5. The external connecting tube 7 is fixed to the end of the connecting tube 6 and connects to the external extraction mechanism to provide suction for the suction tube 5. The auxiliary holes 8 are evenly distributed at the lower end of the suction tube 5. A coating plate 11 is fixed to the inner side of the coating ring 9, and the coating plate 11 and the outlet 10 are staggered. A replenishment tube 14 is fixed to the outer surface of the connecting cover 12 on the front side of the coating ring 9. A guide block 1... An opening is provided at the top to allow the upper end of the replenishment tube 14 to protrude. The replenishment tube 14 is equipped with a one-way conduction mechanism to prevent the liquid in the connecting cover 12 from being discharged outward through the replenishment tube 14. The one-way conduction mechanism includes a baffle 15, a port 16, a sealing plate 17, a first spring 18, and a support plate 19. The baffle 15 is fixed inside the replenishment tube 14. The port 16 is opened in the middle of the baffle 15. The sealing plate 17 is set below the port 16 to block it. The first spring 18 is set below the sealing plate 17 to provide upward thrust to the sealing plate 17. The support plate 19 is fixed inside the replenishment tube 14 to provide support for the lower end of the first spring 18. During use, the insertion block 2 can be inserted into the patient's mouth to prevent the patient from biting the endoscope tube. Then, the guide block 1 and the insertion block 2 are tied to the patient's head with the strap 3 to keep them in a stable position. At the same time, the suction tube 5 is located in the patient's mouth. The external suction device and the external tube 7 are connected to provide suction for the suction tube 5 to extract saliva. The auxiliary hole 8 at the end of the suction tube 5 can prevent the suction tube 5 from sticking to the patient's mouth and affecting the suction. The endoscope tube is inserted into the patient's mouth through the guide groove 4. The endoscope tube passes through the guide wheel 28 and the smearing ring 9. The lubricant in the smearing ring 9 is applied to the surface of the endoscope tube through the outlet 10 on the smearing ring 9. The smearing ring 9 can be rotated to improve the uniformity of the application. When replenishing the lubricant in the connecting cover 12, a tool such as an injection needle can be inserted into the upper end of the replenishment tube 14. Then, the liquid is injected into the replenishment tube 14. The liquid pushes the sealing plate 17 to move and open the opening 16 to deliver the liquid. Example

[0020] Based on Embodiment 1, a rotation control mechanism is disclosed, comprising a transmission gear ring 20, a transmission gear 21, a mounting shaft 22, and a bevel gear 30. The transmission gear ring 20 is fixed to the outside of the connecting cover 12 and rotates synchronously with the connecting cover 12. The transmission gear 21 is disposed on the outside of the transmission gear ring 20 and forms a meshing connection with the transmission gear ring 20. The mounting shaft 22 is fixed to the middle of the transmission gear 21, and a rotatable connection is formed between the mounting shaft 22 and the guide block 1. The bevel gear 30 is fixed to the front side of the mounting shaft 22, and the mounting shaft 22 forms a meshing connection with the connecting shaft 29 through the bevel gear 30. The movement control mechanism includes a threaded rod 23, a movable shaft 24, and a connecting gear. 25 and fixed ring 26, threaded rod 23, are rotatably mounted on the front side of push plate 13, and the front end of threaded rod 23 passes through connecting cover 12 to form a threaded connection. Movable shaft 24 is installed inside threaded rod 23 and forms a front-to-back sliding structure between threaded rod 23. Transmission block 27 is fixed on the surface of movable shaft 24. Movable shaft 24 drives threaded rod 23 to rotate through transmission block 27. Movable shaft 24 and guide block 1 form a rotatable connection. Connecting gear 25 is fixed on the front side of movable shaft 24. Fixed ring 26 is fixed inside guide block 1. Fixed ring 26 is located on the outside of connecting gear 25 and forms a meshing connection between connecting gear 25. When the endoscope tube is inserted, it drives the guide wheel 28 to rotate, which in turn drives the connecting shaft 29 to rotate. The connecting shaft 29 drives the mounting shaft 22 to rotate via the bevel gear 30, which in turn drives the transmission gear ring 20 to rotate via the transmission gear 21. This provides power to the connecting cover 12 and the smear ring 9, causing them to rotate. When the connecting cover 12 rotates, it drives the threaded rod 23, the movable shaft 24, and the connecting gear 25 to move. The connecting gear 25 moves around the fixed ring 26 and rotates through meshing with the fixed ring 26, causing the connecting gear 25 to drive the movable shaft 24 to rotate. The movable shaft 24 drives the threaded rod 23 to rotate via the transmission block 27. The threaded rod 23 drives the push plate 13 to move through the threaded connection between it and the connecting cover 12, causing the push plate 13 to squeeze the lubricant inside the connecting cover 12 and push it out from the outlet 10 to lubricate the surface of the endoscope tube. Example

[0021] Based on Embodiment 1, a centrifugal locking mechanism is disclosed below the connecting shaft 29 to lock it when the connecting shaft 29 accelerates its rotation. The centrifugal locking mechanism includes an auxiliary disk 31, a locking block 32, a second spring 33, a centrifugal block 34, and a locking groove 35. The auxiliary disk 31 is fixed below the connecting shaft 29. The locking block 32 is disposed inside the auxiliary disk 31 and forms a horizontal sliding structure between the auxiliary disk 31 and the locking block 32. The second spring 33 is disposed outside the locking block 32 to provide an inward pushing force to the locking block 32. The centrifugal block 34 is fixed at the inner end of the locking block 32. The locking groove 35 is opened at an equal angle with the center of the auxiliary disk 31 inside the guide block 1, and the locking groove 35 and the locking block 32 form an engaging structure. When the endoscope tube is pulled out, the guide wheel 28 rotates synchronously. When the endoscope tube is suddenly pulled by the outside and moves rapidly, the guide wheel 28 rotates faster. The centrifugal block 34 is subjected to centrifugal force and pushes the locking block 32 outward, so that the locking block 32 and the locking groove 35 are connected, limiting the rotation of the auxiliary plate 31 and the guide wheel 28, providing a limiting effect for the movement of the endoscope tube, thereby preventing its continuous acceleration from causing harm to the patient. Example

[0022] Based on Embodiment 1, an elastic clip 36 is provided on the outer side of the insertion block 2. The elastic clip 36 has an arc-shaped structure and is symmetrically distributed about the insertion block 2. By providing the elastic clip 36 on the side of the insertion block 2, the endotracheal tube can be limited. When performing gastroscopy under intubation conditions, the insertion block 2 is worn after endotracheal intubation. After wearing, the endotracheal tube can be directly pressed into the interior of the elastic clip 36, so that it is connected to the insertion block 2 through the elastic clip 36 and fixed together with the insertion block 2 to the patient's head, thereby keeping the tube stable. When removing it later, it can be directly pushed out from the elastic clip 36. Compared with the traditional additional binding and fixation of the endotracheal tube, the operation is more convenient and faster, and the overall functionality of the mouth pad is increased.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional gastroscopy mouth pad, comprising a guide block (1), an insertion block (2) and a strap (3), wherein the insertion block (2) is fixed to the rear side of the guide block (1) and extends into the patient's oral cavity to provide positioning support for the guide block (1), and the outer side of the guide block (1) is fixed with a strap (3) for binding and fixing the guide block (1). Its features are: The guide block (1) and the insertion block (2) are internally connected by a guide groove (4) for passing through the endoscope tube. The guide block (1) has an annular lubrication ring (9) for applying lubricant to the surface of the endoscope tube. The lubrication ring (9) is rotatably mounted inside the guide block (1), and the center line of the lubrication ring (9) coincides with the center line of the guide groove (4). The inner side of the lubrication ring (9) has evenly spaced outlets (10), and the outer side of the lubrication ring (9) is equipped with a rotation control mechanism to provide rotational power for the lubrication ring (9). A connecting cover (12) is fixed to the front of the lubrication ring (9). The connecting cover (12) has a hollow structure and an annular structure. A push plate (13) is slidably installed inside the connecting cover (12). The liquid inside the connecting cover (12) is squeezed into the smearing ring (9) and sent out by the movement of the push plate (13) inside the connecting cover (12). A movement control mechanism is connected to the front side of the push plate (13) to control the position of the push plate (13) inside the connecting cover (12). A guide wheel (28) is provided inside the guide block (1), and the guide wheel (28) is located in front of the smearing ring (9). The guide wheel (28) is symmetrically arranged about the center line of the guide block (1) to provide guidance for the movement of the endoscope tube. A connecting shaft (29) is fixed to the end of the guide wheel (28). The guide wheel (28) is rotatably installed inside the guide block (1) through the connecting shaft (29).

2. The multifunctional gastroscopy mouth pad according to claim 1, characterized in that: The insertion block (2) is equipped with a saliva extraction mechanism to draw saliva out of the mouth.

3. The multifunctional gastroscopy mouth pad according to claim 2, characterized in that: The saliva extraction mechanism includes a saliva extraction tube (5), a connecting tube (6), an external tube (7), and an auxiliary hole (8). The suction tube (5) is located on the rear side of the insertion block (2); A connecting pipe (6) is provided at the upper end of the liquid extraction pipe (5) and connected to the inside of the liquid extraction pipe (5); The external tube (7) is fixed to the end of the connecting tube (6) and connected to the external extraction mechanism to provide suction for the liquid extraction tube (5); Auxiliary holes (8) are evenly distributed at the lower end of the liquid extraction tube (5).

4. The multifunctional gastroscopy mouth pad according to claim 1, characterized in that: The inner side of the coating ring (9) is fixed with a coating plate (11), and the coating plate (11) and the outlet (10) are staggered. The outer surface of the connecting cover (12) on the front side of the coating ring (9) is fixed with a replenishment tube (14). An opening is provided above the guide block (1) to allow the upper end of the replenishment tube (14) to leak out. The inside of the replenishment tube (14) is provided with a one-way conduction mechanism to prevent the liquid in the connecting cover (12) from being discharged outward through the replenishment tube (14).

5. A multifunctional gastroscopy mouth pad according to claim 4, characterized in that: The unidirectional conduction mechanism includes a baffle (15), a through-hole (16), a sealing plate (17), a first spring (18), and a support plate (19). A baffle (15) is fixed inside the supplementary tube (14); The opening (16) is located in the middle of the baffle (15); A sealing plate (17) is placed below the opening (16) to cover it; The first spring (18) is positioned below the sealing plate (17) to provide an upward thrust to the sealing plate (17); The support plate (19) is fixed inside the supplementary tube (14) to provide support for the lower end of the first spring (18).

6. The multifunctional gastroscopy mouth pad according to claim 1, characterized in that: The rotation control mechanism includes a transmission gear ring (20), a transmission gear (21), a mounting shaft (22), and a bevel gear (30). The transmission gear ring (20) is fixed on the outside of the connecting cover (12) and rotates synchronously with the connecting cover (12); The transmission gear (21) is disposed on the outside of the transmission gear ring (20) and forms a meshing connection between the transmission gear ring (20); The mounting shaft (22) is fixed in the middle of the transmission gear (21), and a rotatable connection is formed between the mounting shaft (22) and the guide block (1); A bevel gear (30) is fixed on the front side of the mounting shaft (22), and the mounting shaft (22) is meshed with the connecting shaft (29) through the bevel gear (30).

7. The multifunctional gastroscopy mouth pad according to claim 1, characterized in that: The movement control mechanism includes a threaded rod (23), a movable shaft (24), a connecting gear (25), and a fixed ring (26). The threaded rod (23) is rotatably mounted on the front side of the push plate (13), and the front end of the threaded rod (23) passes through the connecting cover (12) to form a threaded connection. The movable shaft (24) is installed inside the threaded rod (23) and forms a front-to-back sliding structure between the threaded rod (23). A transmission block (27) is fixed on the surface of the movable shaft (24). The movable shaft (24) drives the threaded rod (23) to rotate through the transmission block (27). The movable shaft (24) and the guide block (1) form a rotating connection. The connecting gear (25) is fixed to the front side of the movable shaft (24); The retaining ring (26) is fixed inside the guide block (1), and the retaining ring (26) is located outside the connecting gear (25) and forms an meshing connection between the connecting gear (25).

8. A multifunctional gastroscopy mouth pad according to claim 1, characterized in that: A centrifugal locking mechanism is provided below the connecting shaft (29) to lock it when the connecting shaft (29) rotates at an accelerated speed.

9. A multifunctional gastroscopy mouth pad according to claim 8, characterized in that: The centrifugal locking mechanism includes an auxiliary disk (31), a locking block (32), a second spring (33), a centrifugal block (34), and a locking groove (35). An auxiliary disk (31) is fixed below the connecting shaft (29); The locking block (32) is set inside the auxiliary disk (31) and between the auxiliary disk (31) to form a horizontal sliding structure; The second spring (33) is located on the outside of the locking block (32) to provide an inward thrust to the locking block (32); Centrifugal block (34) is fixed to the inner end of locking block (32); The locking groove (35) is opened at an equal angle to the center of the auxiliary disk (31) inside the guide block (1), and the locking groove (35) and the locking block (32) form a locking structure.

10. A multifunctional gastroscopy mouth pad according to claim 1, characterized in that: The outer side of the insertion block (2) is provided with an elastic clip (36), and the elastic clip (36) is designed with an arc shape and is symmetrically distributed about the insertion block (2).

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