Oral cavity support for gastroscopy

By designing gastroscopy oral stents with adjustable support components, tongue pressing components and auxiliary components, the problems of poor adaptation, inflexible tongue pressing and insufficient operating staff in the prior art are solved, and patient comfort and operation are improved Efficiency, suitable for peak gastroscopy.

CN119157472AInactive Publication Date: 2024-12-20韩荣
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Patent Information

Application Number
CN202411582516.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2024-12-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing gastroscopy oral stent cannot adapt to the mouth size of different patients, cannot guarantee the comfort of the patient, and cannot choose whether to press and adjust the tongue according to the situation, and cannot effectively perform gastroscopy when there is insufficient staff during peak periods.

Method used

A gastroscopic oral stent including a support assembly, a tongue depressor assembly and an auxiliary assembly is designed. The support assembly is adapted to the mouth shape of different patients through an adjustable support block and a return spring, and the tongue depressor assembly is through an adjustable tongue depressor plate and The slider adjusts the tongue pressure force, and the auxiliary component stabilizes the gastroscopy tube through the guide wheel and damping spring, reducing the doctor's manual operation.

Benefits of technology

The lip shapes that are adapted to different patients are realized, and the tongue compression is adjusted according to needs is improved, operating efficiency and comfort is improved, and the doctor's operation difficulties are reduced when personnel are tight, saving human resources.

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Abstract

The invention relates to the technical field of gastroscope oral cavity supports, in particular to a gastroscope examination oral cavity support which comprises a connecting plate, a fixing belt fixedly installed on the side face of the connecting plate, a support ring fixedly installed on the inner side of the connecting plate, a supporting assembly arranged on the side face of the support ring, and a tongue pressing assembly arranged in the supporting assembly. Auxiliary assemblies are arranged on the side faces of the support rings. By arranging the supporting assembly, supporting blocks are placed in the oral cavity of a patient, a support ring is fixed by a connecting plate through a fixing belt, rotating motion is performed after an adjusting cylinder is pressed, a triggering rod is triggered to perform telescopic operation, so that the supporting blocks are attached to the four side positions of the oral cavity of the patient, and the supporting blocks elastically support the oral cavity through the elastic force of the connecting block; an adjusting cylinder is loosened, the elastic force of a reset spring enables a clamping block to be clamped to the side face of a trigger rod to limit a supporting block, the oral cavity supporting operation of the patient is completed, in this way, the mouth shapes of different patients can be adapted, and the comfort of the patients is guaranteed during supporting.
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Description

Technical Field

[0001] The invention relates to the technical field of gastroscope oral brackets, and in particular to an oral bracket for gastroscope inspection. Background Art

[0002] The oral stent for gastroscopy is an indispensable auxiliary tool for gastroscopy. It is generally composed of a circular stent ring, a connecting arc plate and a fixing belt. There are still the following problems when using it:

[0003] 1. The annular stent ring can keep the patient's mouth open during gastroscopy. However, due to the different sizes of mouths, the existing stent ring cannot be adapted for use and cannot ensure the patient's comfort.

[0004] 2. In order to prevent the tongue from interfering with the gastroscope, the existing oral stent generally extends one side of the stent ring to press the tongue. However, this makes it impossible to choose whether to press the tongue according to the situation, and the tongue pressing operation cannot be adjusted;

[0005] 3. When the gastroscope tube is moved inside the bracket, two doctors are generally required to operate it. The operating doctor moves the gastroscope tube with one hand and performs other operations with the other hand. When other operations such as holding tools are required, another doctor is required to cooperate. When there is a shortage of staff during peak hours, gastroscopy operations cannot be performed effectively. Summary of the invention

[0006] In order to overcome the above problems: 1. During gastroscopy, the annular support ring can keep the patient's mouth open, but due to the different sizes of mouths, the existing support ring cannot be adapted for use and the patient's comfort cannot be guaranteed; 2. In order to prevent the tongue from interfering with the gastroscope, the existing oral support generally extends one side of the support ring to press the tongue, but this makes it impossible to choose whether to press the tongue according to the situation and the tongue pressing operation cannot be adjusted; 3. When the gastroscope tube is moved inside the support, two doctors are generally required to operate it. The operating doctor moves the gastroscope tube with one hand and performs other operations with the other hand. When other operations such as holding tools are required, another doctor is required to cooperate. When there is a shortage of personnel during peak hours, gastroscopy operations cannot be effectively performed. The present invention provides an oral support for gastroscopy.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a connecting plate, a fixing belt is fixedly installed on the side of the connecting plate, a bracket ring is fixedly installed on the inner side of the connecting plate, a supporting component is arranged on the side of the bracket ring, a tongue depressing component is arranged inside the supporting component, and an auxiliary component is arranged on the side of the bracket ring;

[0008] The support assembly includes four groups of support blocks, the sides of the four groups of support blocks are provided with adjustment cylinders, the sides of the adjustment cylinders are provided with trigger cavities, and the sides of the trigger cavities are provided with trigger rods;

[0009] The tongue depressor assembly comprises a tongue depressor, a guide groove and a slide groove are arranged on the side of the tongue depressor, a guide block is arranged inside the guide groove, and a slide block is arranged inside the slide groove;

[0010] The auxiliary component comprises a mounting block, a slot is arranged on the side of the mounting block, a movable guide wheel is arranged on the inner side of the mounting block, and a damping spring which can provide elastic support is arranged on the side of the guide wheel.

[0011] Furthermore, the support assembly includes four groups of support blocks arranged on the side of the support ring, connecting blocks are fixedly connected between the support blocks, the adjustment cylinder is movably installed inside the support ring, and a return spring is fixedly installed on the side of the adjustment cylinder.

[0012] Furthermore, the support assembly also includes a restraining groove opened on the side of the bracket ring, the trigger cavity is opened on the side of the adjustment cylinder, the trigger rod is arranged on the wall of the trigger cavity, and a clamping block is fixedly installed on the side of the trigger cavity.

[0013] Furthermore, the width of the trigger cavity is twice that of the constraint groove, the trigger rod is fixed on the side of the support block through the constraint groove by screws, and the clamping block is an arc-shaped block that is equidistant and proportionally reduced.

[0014] Furthermore, the tongue depressor assembly includes a tongue depressor movably mounted on the inner side of the adjusting cylinder, guide grooves are opened on both sides of the tongue depressor, a guide block is movably mounted inside the guide groove, a slide groove is opened on the side of the tongue depressor, and a groove is opened on the side of the adjusting cylinder.

[0015] Furthermore, the tongue depressor assembly also includes an installation cavity opened in the groove wall, a trigger block is movably installed inside the groove, a push block is movably installed inside the installation cavity, a slider is movably installed inside the installation cavity, and a connecting tube is fixedly connected between the push block and the slider.

[0016] Furthermore, the auxiliary component includes a mounting block movably mounted on the inner side of the adjusting cylinder, and the card slot is provided on the side of the mounting block.

[0017] Furthermore, the auxiliary component also includes an movable cavity opened on the inner side of the mounting block, the guide wheel is movably installed inside the movable cavity, a connecting groove is opened on the inner wall of the movable cavity, a movable block is movably installed inside the connecting groove, a damping spring is fixedly installed on the side of the movable block, and an adjusting rod is installed on the internal thread of the connecting groove.

[0018] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0019] 1. The present invention sets a support assembly, and the support block is placed inside the patient's oral cavity. The connecting plate is fixed in position by a fixing belt, and the adjusting cylinder is pressed to rotate, and the trigger rod is triggered to extend and retract so that the support block fits on the four sides of the patient's oral cavity. The support block elastically supports the oral cavity under the elastic force of the connecting block, and the adjusting cylinder is released so that the elastic force of the reset spring causes the clamping block to clamp on the side of the trigger rod to limit the support block, thereby completing the operation of supporting the patient's oral cavity. In this way, the mouth shapes of different patients can be adapted and the comfort of the patient can be ensured during support.

[0020] 2. The present invention sets a support component and a tongue depressor component, and inserts the tongue depressor from the inside of the adjusting cylinder. At this time, the adjusting cylinder is lightly pressed so that the slider can slide into the inside of the slide groove, and then the guide block is inserted into the inside of the guide groove to constrain the tongue depressor. The position of the tongue depressor is adjusted to press the patient's tongue, and the adjusting cylinder is released so that the slider squeezes the side of the slide groove. The tongue depressor can be fixed with the help of the guide block limiter to complete the pressing operation on the patient's tongue, so that the tongue pressing operation can be adjusted according to needs, thereby improving the cushioning comfort, and the setting of the adjusting cylinder can trigger the tongue depressor and the support block to perform adjustment operations synchronously, thereby improving the adjustment efficiency.

[0021] 3. The present invention provides a supporting component, a tongue depressor component and an auxiliary component. If a tongue depressor is installed, after pressing the adjusting cylinder, the mounting block can be directly inserted into the adjusting cylinder according to the constraint and guidance of the tongue depressor. After loosening the adjusting cylinder, the slider is clamped in the slot to position it. If the tongue depressor is not installed, the slider can be aligned with the notch of the mounting block and inserted into the inner side of the adjusting cylinder according to the position of the slider. Then, the adjusting cylinder is pressed to completely insert the mounting block into it. The mounting block can be slightly rotated left and right to make the slider clamped in the slot and fixed. The auxiliary components can be installed and disassembled according to needs, and the arranged adjusting cylinder can simultaneously complete the installation and disassembly operations of the mounting block when adjusting the tongue depressor and the supporting block, thereby improving the operation efficiency.

[0022] 4. The present invention arranges a guide wheel and its peripheral components, and the gastroscope tube is inserted into the mounting block. Then, a threaded adjustment rod is used to adjust the squeezing force of the guide wheel on the gastroscope tube, thereby completing the squeezing and stabilizing operation of the gastroscope tube. When the doctor releases the gastroscope tube, the damping spring elastically squeezes the guide wheel, so that the guide wheel plays a damping and fixing role on the gastroscope tube. When the operator is nervous, the fingers of the doctor holding the gastroscope tube can be loosened to perform other operations, thereby ensuring the operation of the gastroscope detection and saving manpower and allocation.

[0023] 5. The present invention can realize various combination operations through the modular setting of the tongue depressor component and the auxiliary component. The doctor can use it autonomously according to the required scene. The installation and disassembly are relatively convenient, and the components do not interfere with each other when being adjusted, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the partial structure of the stent ring of the present invention;

[0026] Figure 3 It is a schematic diagram of the partial structure of the support block of the present invention;

[0027] Figure 4 It is a schematic diagram of a partial explosion structure of a support assembly of the present invention;

[0028] Figure 5 It is a schematic diagram of the explosion of the peripheral structure of the trigger chamber of the present invention;

[0029] Figure 6 It is a schematic diagram of a partial explosion structure of the tongue depressor assembly of the present invention;

[0030] Figure 7 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0031] Figure 8 It is a schematic diagram of the partial explosion structure of the auxiliary component of the present invention.

[0032] Among them: 1. connecting plate; 2. fixing belt; 3. bracket ring; 4. supporting assembly; 41. supporting block; 42. connecting block; 43. adjusting cylinder; 44. reset spring; 45. restraining groove; 46. trigger chamber; 47. trigger rod; 48. clamping block; 5. tongue depressor assembly; 51. tongue depressor; 52. guide groove; 53. guide block; 54. slide groove; 55. slot; 56. mounting chamber; 57. trigger block; 58. push block; 59. slider; 591. connecting cylinder; 6. auxiliary assembly; 61. mounting block; 62. clamping groove; 63. movable chamber; 64. guide wheel; 65. connecting groove; 66. movable block; 67. damping spring; 68. adjusting rod. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0034] Example: Figure 1 and Figure 2As shown, a gastroscopy oral bracket comprises a connecting plate 1, the connecting plate 1 is an arc-shaped plate with a groove on the side, a fixing belt 2 is fixedly installed on the side of the connecting plate 1, the fixing belt 2 is an elastic belt, a bracket ring 3 is fixedly installed on the inner side of the connecting plate 1, the bracket ring 3 is a circular ring block, an adjustable supporting component 4 is arranged on the side of the bracket ring 3, an adjustable tongue depressing component 5 is arranged inside the supporting component 4, and an auxiliary component 6 capable of constraining a gastroscope tube is arranged on the side of the bracket ring 3 corresponding to the position of the tongue depressing component 5;

[0035] The support component 4 can be adapted to different people for oral support and is easy to adjust;

[0036] like Figures 2 to 5 As shown, the support assembly 4 includes four groups of support blocks 41 arranged equidistantly on the side of the support ring 3 in a circular array, the support blocks 41 are arc-shaped blocks made of soft plastic material, and connecting blocks 42 are fixedly connected between the support blocks 41. The connecting blocks 42 are continuous curved blocks made of elastic rubber material. An adjustment cylinder 43 is movably installed inside the support ring 3 and the adjustment cylinder 43 extends out of the internal position of the support ring 3. The adjustment cylinder 43 is a cylinder with an "L"-shaped cross section. A return spring 44 is fixedly installed on the side of the adjustment cylinder 43 and The reset spring 44 is movably sleeved on the side of the adjustment cylinder 43, and the reset spring 44 is fitted on the side of the bracket ring 3 and the connecting plate 1. A constraint groove 45 is equidistantly provided on the side of the bracket ring 3 corresponding to the position of the support block 41, and the constraint groove 45 is a rectangular groove. A trigger cavity 46 is equidistantly provided on the side of the adjustment cylinder 43 corresponding to the position of the constraint groove 45. The trigger cavity 46 is a fan-shaped cavity with one side in an "L" shape. The width of the trigger cavity 46 is twice that of the constraint groove 45. The "L"-shaped wall of the trigger cavity 46 A trigger rod 47 is provided on the surface and the trigger rod 47 is fixedly installed at the side position of the support block 41 through the constraint groove 45 by screws. The trigger rod 47 is a trapezoidal block with arc grooves equidistantly opened on one side. A clamping block 48 is fixedly installed at a proportionally reduced distance on the side of the trigger cavity 46 and the clamping block 48 is clamped in the arc groove on the side of the trigger rod 47. The clamping block 48 is an arc block. Specifically, by pressing the adjustment cylinder 43, the clamping block 48 is separated from the side position of the trigger rod 47, and the trigger rod 47 is inside the trigger cavity 46. Move, at this time, rotate the adjustment cylinder 43 so that the trigger rod 47 is attached to the wall of the trigger chamber 46 and is constrained by compression, and the trigger rod 47 slides on the wall of the trigger chamber 46 to push and pull the support block 41 to move the position, and the connecting block 42 elastically pulls the support block 41, and the four groups of support blocks 41 elastically support the upper side of the patient's mouth. Adjusting the appropriate position can make the patient open and close more comfortably, release the pressed adjustment cylinder 43, and the clamping block 48 is clamped on the side of the trigger rod 47 to limit it under the elastic support of the reset spring 44;

[0037] The tongue depressor assembly 5 can be adjusted to press the patient's tongue, and can be disassembled when pressing is not required;

[0038] like Figure 2 and Figures 4 to 7 As shown, the tongue depressor assembly 5 includes a tongue depressor 51 movably mounted on the inner side of the adjusting cylinder 43. The tongue depressor 51 is an "L"-shaped plate. Guide grooves 52 are provided on both sides of the tongue depressor 51. The guide grooves 52 are rectangular grooves. A guide block 53 is movably mounted inside the guide groove 52 and the guide block 53 is fixedly mounted on the inner side of the adjusting cylinder 43. The guide block 53 is a rectangular block. A slide groove 54 is provided on the side of the tongue depressor 51 and passes through it. The slide groove 54 is a convex groove. A slot 55 is provided on the side of the adjusting cylinder 43. The slot 55 is a circular groove. A mounting cavity 56 that penetrates the adjusting cylinder 43 is mirrored on the wall of the slot 55 corresponding to the position of the tongue depressor 51. The mounting cavity 56 is a cylindrical cavity with a cross-shaped cross section. A trigger block 57 is movably installed inside the slot 55 and the trigger block 57 is fixedly installed at the inner side of the adjusting cylinder 43. The trigger block 57 is a trapezoidal block. A push block 58 is movably installed inside the mounting cavity 56 and the push block 58 is attached to the side of the trigger block 57. The push block 58 is a "T"-shaped round block with a tapered side. A slider 59 is movably installed inside the mounting cavity 56 and the slider 59 extends out of the mounting cavity 56. A set of push blocks 58 are movably installed inside the slide groove 54. The slider 59 is a circular block with an I-shaped cross section. A connecting cylinder 591 is fixedly connected between the push block 58 and the slider 59. The connecting cylinder 591 is a spring steel cylinder with a continuous "W"-shaped cross section. Specifically, when the adjustment cylinder 43 is pressed, the trigger block 57 slides inside the slot 55. At this time, the push block 58 is not squeezed and slides out of the mounting cavity 56, and the synchronous connection The connecting tube 591 drives the slider 59 to slide into the inner position of the installation cavity 56. On the contrary, when the adjustment tube 43 is reset, the trigger block 57 squeezes the push block 58 to make the slider 59 slide out of the installation cavity 56, and slightly presses the adjustment tube 43, so that the slider 59 moves slightly inside the slide groove 54, so that the tongue depressor 51 can be slidably adjusted. The guide block 53 slides inside the guide groove 52 to constrain it. When the adjustment tube 43 is released, the slider 59 is squeezed on the wall of the slide groove 54, and the tongue depressor 51 is constrained and fixed by cooperating with the guide block 53.

[0039] The auxiliary component 6 can be used to constrain the gastroscope tube and adjust the damping of the gastroscope tube;

[0040] like Figure 2 and Figure 8As shown, the auxiliary component 6 includes a mounting block 61 movably mounted on the inner side of the adjusting cylinder 43 and the mounting block 61 is sleeved on the side of the tongue depressor 51. The mounting block 61 is a "T"-shaped ring block with a notch on the side. A clamping groove 62 is opened on the side of the mounting block 61 and the slider 59 is clamped in the inner position of the clamping groove 62. The clamping groove 62 is a circular groove. A movable cavity 63 is symmetrically opened on the inner side of the mounting block 61. The movable cavity 63 is a rectangular cavity. A guide wheel 64 is movably installed inside the movable cavity 63. The guide wheel 64 is a circular roller made of rubber. A connecting groove 65 that penetrates the mounting block 61 is opened on the inner wall of the movable cavity 63. The connecting groove 65 is a circular threaded groove with a convex cross-section. A movable block is movably installed inside the connecting groove 65. 66, the movable block 66 is a circular block, a damping spring 67 is fixedly installed on the side of the movable block 66 and the damping spring 67 is fitted to the side position of the guide wheel 64, and an adjusting rod 68 is installed on the internal thread of the connecting groove 65, and the adjusting rod 68 is a "T"-shaped cylindrical threaded rod; specifically, the adjusting rod 68 is arranged to perform a thread adjustment operation inside the connecting groove 65, and the adjusting rod 68 pushes the movable block 66 to slide inside the connecting groove 65 to squeeze the damping spring 67 to deform, so that the guide wheel 64 exerts different forces on the side of the gastroscope tube. When the gastroscope tube is released, the gastroscope tube can be kept stationary under the damping clamping of the guide wheel 64, and when the adjusting cylinder 43 is pressed as above, the slider 59 disengages from the inside of the card slot 62 to complete the disassembly of the mounting block 61.

[0041] Working principle:

[0042] Before use: complete the pre-adjustment and cleaning of the bracket;

[0043] When in use: the first step is to place the support block 41 inside the patient's oral cavity, fix the support ring 3 in position by the connecting plate 1 through the fixing belt 2, press the adjusting cylinder 43 and rotate it, trigger the trigger rod 47 to extend and retract so that the support block 41 fits the four sides of the patient's oral cavity, and the support block 41 elastically supports the oral cavity under the elastic force of the connecting block 42, release the adjusting cylinder 43, and the elastic force of the reset spring 44 makes the clamping block 48 clamped on the side of the trigger rod 47 to limit the support block 41, completing the operation of supporting the patient's oral cavity;

[0044] The second step is to select whether the tongue depressing operation is required according to the needs. If necessary, insert the tongue depressor 51 from the inside of the adjusting cylinder 43. At this time, slightly press the adjusting cylinder 43 so that the slider 59 can slide into the inside of the slide groove 54. Then, insert the guide block 53 into the inside of the guide groove 52 to constrain the tongue depressor 51. Adjust the position of the tongue depressor 51 to press the patient's tongue. Loosen the adjusting cylinder 43 so that the slider 59 squeezes the side of the slide groove 54. The tongue depressor 51 can be fixed with the help of the guide block 53 to complete the operation of pressing the patient's tongue.

[0045] The third step is to select whether the tube clamping operation is required according to the needs. If necessary, if the tongue depressor 51 is installed, after pressing the adjustment cylinder 43, the mounting block 61 can be directly inserted into the adjusting cylinder 43 according to the constraint and guidance of the tongue depressor 51. After loosening the adjusting cylinder 43, the slider 59 is clamped in the clamping groove 62 to position it. If the tongue depressor 51 is not installed, the slider 59 can be aligned with the notch of the mounting block 61 according to the position of the slider 59 and inserted into the inner side of the adjusting cylinder 43. Then, the adjusting cylinder 43 is pressed to completely insert the mounting block 61 into it. The mounting block 61 can be slightly rotated left and right to make the slider 59 clamped in the clamping groove 62 and fixed. After the installation is completed, the gastroscope tube is inserted into the mounting block 61, and then the threaded adjustment rod 68 is used to adjust the squeezing force of the guide wheel 64 on the gastroscope tube to complete the squeezing and stabilizing operation of the gastroscope tube.

[0046] After use: the mounting block 61 and the tongue depressor 51 can be disassembled, the support block 41 can be disassembled out of the side of the trigger rod 47, the used tongue depressor 51 and the support block 41 can be discarded, and the bracket can be cleaned and stored after replacing new accessories for subsequent use.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A gastroscopy oral bracket, comprising a connecting plate (1), a fixing belt (2) fixedly mounted on the side of the connecting plate (1), a bracket ring (3) fixedly mounted on the inner side of the connecting plate (1), a supporting component (4) arranged on the side of the bracket ring (3), a tongue depressing component (5) arranged inside the supporting component (4), and an auxiliary component (6) arranged on the side of the bracket ring (3); Features: The support assembly (4) comprises four groups of support blocks (41), the sides of the four groups of support blocks (41) are provided with adjustment cylinders (43), the sides of the adjustment cylinders (43) are provided with trigger cavities (46), and the sides of the trigger cavities (46) are provided with trigger rods (47); The tongue depressor assembly (5) comprises a tongue depressor (51), a guide groove (52) and a slide groove (54) are arranged on the side of the tongue depressor (51), a guide block (53) is arranged inside the guide groove (52), and a slider (59) is arranged inside the slide groove (54); The auxiliary component (6) comprises a mounting block (61), a side surface of the mounting block (61) is provided with a slot (62), an inner side of the mounting block (61) is provided with a movable guide wheel (64), and a side surface of the guide wheel (64) is provided with a damping spring (67) capable of providing elastic support.

2. The oral stent for gastroscopy according to claim 1, characterized in that: The support assembly (4) comprises four groups of support blocks (41) arranged on the side of the support ring (3), the support blocks (41) are fixedly connected with connection blocks (42), the adjustment cylinder (43) is movably installed inside the support ring (3), and the side of the adjustment cylinder (43) is fixedly installed with a return spring (44).

3. The oral stent for gastroscopy according to claim 2, characterized in that: The support assembly (4) further comprises a restraining groove (45) provided on the side of the support ring (3); a trigger cavity (46) is provided on the side of the adjustment cylinder (43); a trigger rod (47) is arranged on the wall surface of the trigger cavity (46); and a clamping block (48) is fixedly mounted on the side of the trigger cavity (46).

4. The oral stent for gastroscopy according to claim 3, characterized in that: The width of the trigger cavity (46) is twice that of the constraint groove (45), the trigger rod (47) passes through the constraint groove (45) and is fixed to the side of the support block (41) by screws, and the clamping block (48) is an arc-shaped block that is equidistant and proportionally reduced.

5. The oral stent for gastroscopy according to claim 4, characterized in that: The tongue depressor assembly (5) comprises a tongue depressor (51) movably mounted inside the adjusting cylinder (43), guide grooves (52) are provided on both sides of the tongue depressor (51), a guide block (53) is movably mounted inside the guide groove (52), a slide groove (54) is provided on the side of the tongue depressor (51), and a groove (55) is provided on the side of the adjusting cylinder (43).

6. The oral stent for gastroscopy according to claim 5, characterized in that: The tongue depressor assembly (5) further comprises a mounting cavity (56) formed on the wall surface of the slot (55), a trigger block (57) being movably mounted inside the slot (55), a push block (58) being movably mounted inside the mounting cavity (56), a slider (59) being movably mounted inside the mounting cavity (56), and a connecting tube (591) being fixedly connected between the push block (58) and the slider (59).

7. The oral stent for gastroscopy according to claim 6, characterized in that: The auxiliary component (6) comprises a mounting block (61) movably mounted on the inner side of the adjusting cylinder (43), and a clamping groove (62) is provided on the side of the mounting block (61).

8. The oral stent for gastroscopy according to claim 7, characterized in that: The auxiliary component (6) further comprises a movable cavity (63) provided on the inner side of the mounting block (61), a guide wheel (64) being movably mounted inside the movable cavity (63), a connecting groove (65) being provided on the inner wall of the movable cavity (63), a movable block (66) being movably mounted inside the connecting groove (65), a damping spring (67) being fixedly mounted on the side of the movable block (66), and an adjusting rod (68) being threadedly mounted inside the connecting groove (65).