Mouth opening device for oral surgery
By designing a curved lip insertion plate and a clamp control mechanism to adjust the size of the oral opening, combined with a saliva suction mechanism, the problems of existing device adaptability and saliva choking are solved, improving patient comfort and operational convenience.
Patent Information
- Application Number
- CN202510586158.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-07-22
AI Technical Summary
The existing oral surgical opening device is difficult to adapt to patients of different oral sizes, and the degree of oral opening cannot be adjusted, and the patient's secretion of saliva is prone to choking.
An opening device including a symmetrically arranged arc-shaped lip insertion plate, a U-shaped elastic frame and a clamp control mechanism is designed. The size of the oral opening is adjusted through the arc-shaped plate and clamp control mechanism, and a saliva is sucked.
It realizes the adjustment of the oral opening degree according to the patient's oral size, improves the patient's comfort, and effectively solves the problem of saliva choking, simplifying the doctor's operation process.
Smart Images
Figure CN120345841A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of oral surgery, and particularly relates to an opening device for oral surgery. Background Art
[0002] Oral surgery mainly focuses on surgery to examine and operate on problems of the oral and maxillofacial regions and alveolar processes. To ensure the smooth progress of the patient's oral examination and surgery and keep the patient in an open - mouth state, an opening device is needed to assist. By adjusting the opening mechanism on the opening device, the patient's mouth can be kept open, facilitating the doctor to examine and operate on the patient's oral cavity.
[0003] Most of the existing opening devices support the patient's oral cavity through elastic rubber sleeves. In the actual use process, due to certain differences in the size of the patient's oral cavity, it is difficult for the existing opening rubber sleeves to fit each patient's oral cavity. Moreover, different oral diagnosis and treatment procedures require different degrees of opening exposure. If the oral opening device has only one opening degree, it will cause the patient to maintain a large oral opening degree for a long time, causing discomfort to the patient. In addition, when the patient maintains an open - mouth state for a long time, a lot of saliva will be secreted under the tongue, which is likely to cause the patient to choke, and there are certain limitations.
[0004] In summary, the existing opening devices for oral surgery have certain limitations and cannot meet the needs of patients with different oral sizes, different degrees of oral opening exposure for examination, and the problem that a large amount of saliva secreted in the oral cavity is likely to choke the patient. Therefore, it is necessary to propose a new opening device for oral surgery. Summary of the Invention
[0005] In order to improve the problems that the existing opening devices for oral surgery cannot meet the needs of patients with different oral sizes, different degrees of oral opening for examination, and the problem that a large amount of saliva secreted in the oral cavity is likely to choke the patient, this application provides an opening device for oral surgery.
[0006] An opening device for oral surgery provided by this application adopts the following technical solutions: An opening device for oral surgery includes symmetrically arranged arc - shaped oral lip embedding plates, a U - shaped elastic frame, and a pliers - type control mechanism. The two arc - shaped oral lip embedding plates are connected to both ends of the U - shaped elastic frame. The pliers - type control mechanism is arranged between the U - shaped elastic frames. A saliva suction mechanism for sucking the patient's saliva is arranged on the U - shaped elastic frame; A cavity is opened in the arc - shaped oral lip embedding plate. An arc - shaped plate is slidably connected in the cavity. An arc - shaped rack is fixedly connected to the rear side of the arc - shaped plate. A transmission gear meshes with the arc - shaped rack. The transmission shaft on the transmission gear passes through the side wall of the arc - shaped oral lip embedding plate and is fixedly connected to a twisting cover. A locking component is arranged on one side of the twisting cover for locking and fixing the sliding arc - shaped plate.
[0007] As a preferred solution, the pliers-type regulation mechanism includes a left plier and a right plier. The left plier and the right plier are rotatably connected in an upper and lower staggered manner through a rotating shaft. The tops of the jaws of the left plier and the right plier are respectively fixedly connected to both ends of the U-shaped elastic frame. Above the handle of the left plier, a second arc-shaped rack is fixedly connected. The other end of the second arc-shaped rack passes through the handle of the right plier and is slidably connected to the right plier. A cavity is formed in the handle of the right plier. A toothed lock is rotatably connected in the cavity through a hole shaft. The other end of the toothed lock is meshed with the second arc-shaped rack through a gear structure. A locking and regulation component is also provided on the toothed lock for regulating the opening degree between the left plier and the right plier.
[0008] As a preferred solution, the saliva suction mechanism includes a fixed shaft. One end of the fixed shaft is connected to the U-shaped elastic frame, and the other end is embedded with a rotatably connected rotating ball. The top of the rotating ball is connected to a saliva suction tube sleeve through a connecting shaft. An upper saliva suction tube is arranged inside the saliva suction tube sleeve. The rear end of the upper saliva suction tube is connected to a one-way valve. There are two one-way valves, and the two one-way valves are connected through an air bag. The other end of the other one-way valve is connected to a rear saliva suction tube.
[0009] As a preferred solution, the locking component includes an L-shaped locking pin. The twisting cover is provided with a plurality of locking holes in a gear shape along the circumferential direction. A locking base is arranged on the arc-shaped lip embedding plate. One end of the L-shaped locking pin is cooperatively locked with the locking hole, and the other end is rotatably connected to the locking base through a rotating shaft. A baffle is also arranged on one side of the locking base where it is located on the twisting cover.
[0010] As a preferred solution, the locking and regulation component includes a lock guide rail. A lock guide rail shaft located above the toothed lock is arranged inside the lock guide rail. One side of the lock guide rail is connected to a sliding rod. A fixed socket is arranged on one side of the right plier close to the sliding rod. A sliding sleeve socket is also arranged on one side of the bottom end of the handle of the right plier where it is located close to the sliding rod. The sliding rod passes through the fixed socket and the sliding sleeve socket and is connected to a sliding column. A spring is arranged inside the sliding sleeve socket. One end of the spring abuts against the bottom of the sliding sleeve socket, and the other end abuts against the sliding column. The top of the sliding column is connected to a pull rod. A slide rail cooperating with the pull rod is arranged above the sliding sleeve socket.
[0011] As a preferred solution, the sliding column is located inside the sliding sleeve socket and is elastically abutted against the top plate of the sliding sleeve socket through the spring.
[0012] As a preferred solution, the other end of the arc-shaped plate extends outwards and is placed outside the arc-shaped lip embedding plate, and oral lip embedding baffles are arranged on both sides of its upper end. A medical silica gel pad is arranged on the surface of the lip embedding plate.
[0013] As a preferred solution, regulating bracelets are provided at the lower ends of the handles of the left clamp and the right clamp, and the pull rod is arranged in parallel on the right side of the regulating bracelets.
[0014] Compared with the prior art, the present application has the following beneficial effects: the device is simple, comfortable for patients to wear, and convenient for doctors to operate. The device includes symmetrically arranged arc-shaped lip embedding plates, a U-shaped elastic frame and a clamp-type regulating mechanism, and a saliva suction mechanism arranged on the U-shaped elastic frame for sucking the saliva of patients.
[0015] 1. By means of the sliding arc plate arranged on the symmetrically arranged arc-shaped lip embedding plates, turning the twisting cover, the transmission shaft drives the transmission gear to rotate, and the transmission gear drives the mutually meshing arc-shaped racks to slide, so that the arc plate slides in the arc-shaped lip embedding plate along the radian direction of the arc-shaped lip embedding plate. Furthermore, according to the oral cavity sizes of different patients, the lengths of the arc plates in the two arc-shaped lip embedding plates along the radian direction of the arc-shaped lip embedding plate can be slidably adjusted to adapt to the different oral cavity sizes of patients of different ages, so as to solve the problem of adapting to different oral cavity sizes.
[0016] 2. The traditional oral surgery opening device only regulates the left and right opening degrees of the arc-shaped lip embedding plates through the elasticity of the U-shaped elastic frame to adapt to the problem of different oral cavity opening degrees of different patients. However, the elasticity of the U-shaped elastic frame will expand to the left and right all the time, which will cause the patient to be unable to maintain the most suitable oral cavity opening degree, making the patient's lips stay in a fatigued state for a long time, which is not conducive to the doctor's operation and the patient's wearing comfort. In the present application, a clamp-type regulating mechanism is arranged between the U-shaped elastic frames to adjust the opening degree between the left clamp and the right clamp, so that the U-shaped elastic frame and the clamp-type regulating mechanism cooperate with each other. When the left and right extension elasticity of the U-shaped elastic frame reaches the most suitable opening degree for the patient's lips, the locking and regulating component in the clamp-type regulating mechanism is adjusted to keep the opening degree between the left clamp and the right clamp at the most suitable opening degree for the patient's lips, so as to solve the inspection requirements for different oral cavity opening degrees.
[0017] 3. By arranging a saliva suction mechanism for sucking the saliva of patients on the U-shaped elastic frame, the upper saliva suction tube is rotated omnidirectionally through the rotating ball to be adjusted to the most suitable position for sucking the saliva of patients, the air bag is squeezed to generate air flow, and the one-way valve generates suction force on the upper saliva suction tube, and the saliva in the patient's mouth is discharged from the rear saliva suction tube through the two one-way valves, so as to solve the problem that a large amount of saliva secreted by the patient's oral cavity is easy to choke the patient. Description of the Drawings
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0019] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present invention can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.
[0020] Figure 1 is a schematic diagram of the overall structure of an oral surgery opening device in an embodiment of the present application; Figure 2 is a cross-sectional view of an arc-shaped lip insertion plate of an oral surgery opening device in an embodiment of the present application; Figure 3 is Figure 2 a partially enlarged schematic view in the B direction in Figure 4 is a partial cross-sectional view of the right pliers body of an oral surgery opening device in an embodiment of the present application Figure 5 is Figure 4 a partially enlarged schematic view in the A direction in
[0021] 1. Arc-shaped lip insertion plate; 2. U-shaped elastic frame; 3. Cavity; 4. Arc-shaped plate; 5. Arc-shaped rack; 6. Transmission gear; 7. Transmission shaft; 8. Twisting cover; 9. Left pliers; 10. Right pliers; 11. Rotating shaft; 12. Second arc-shaped rack; 13. Second cavity; 14. Tooth-shaped lock; 15. Fixed shaft; 16. Rotating ball; 17. Saliva suction tube sleeve; 18. Upper saliva suction tube; 19. Check valve; 20. Air bag; 21. Rear saliva suction tube; 22. L-shaped lock pin; 23. Locking hole; 24. Locking base; 25. Baffle; 26. Lock guide; 27. Lock guide shaft; 28. Sliding rod, 29. Fixed sleeve seat; 30. Sliding sleeve seat; 31. Sliding column; 32. Spring; 33. Pull rod; 34. Slide rail; 35. Lip insertion baffle; 36. Regulation hand ring. Detailed implementation manners
[0022] To make the invention purpose, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be intermediate components present simultaneously.
[0024] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific embodiments.
[0025] Referring to Figures 1 to 5 , an oral surgical opening device includes symmetrically arranged arc-shaped lip embedding plates 1, a U-shaped elastic frame 2, and a pliers-type regulating mechanism. The two arc-shaped lip embedding plates 1 are connected to both ends of the U-shaped elastic frame 2. The pliers-type regulating mechanism is arranged between the U-shaped elastic frames 2. A saliva suction mechanism for sucking the saliva of the patient is arranged on the U-shaped elastic frame 2. The two symmetrically arranged arc-shaped lip embedding plates 1 can stretch the patient's lips in the left-right direction under the action of the elasticity of the U-shaped elastic frame 2. The two symmetrically arranged arc-shaped lip embedding plates 1 stretch the patient's lips in the up-down direction. The U-shaped elastic frame 2 and the pliers-type regulating mechanism cooperate with each other to adjust the lip opening degree in the left-right direction of the two arc-shaped lip embedding plates 1 to the most suitable oral opening state of different patients, ensuring the comfort of the patient during the examination process, facilitating the doctor's examination and surgery. The saliva suction mechanism on the U-shaped elastic frame 2 can be dynamically adjusted in all directions to the most suitable position for sucking the saliva in the patient's oral cavity, and is simple and convenient for the doctor to operate, quickly and conveniently solving the problem that a large amount of saliva secreted by the patient's oral cavity is easy to choke the patient. A cavity 3 is provided in the arc-shaped lip embedding plate 1. An arc-shaped plate 4 is slidably connected in the cavity 3. An arc-shaped rack 5 is fixedly connected to the rear side of the arc-shaped plate 4. A transmission gear 6 meshes with the arc-shaped rack 5. A transmission shaft 7 on the transmission gear 6 passes through the side wall of the arc-shaped lip embedding plate 1 and is fixedly connected to a twisting cover 8. A locking assembly is provided on one side of the twisting cover 8 for sliding and locking the arc-shaped plate 4. When the twisting cover 8 is rotated, the transmission shaft 7 on the twisting cover 8 drives the transmission gear 6 to rotate. At the same time, the transmission gear 6 drives the meshing arc-shaped rack 5 to slide, thereby driving the arc-shaped plate 4 to slide back and forth in the cavity 3 provided in the arc-shaped lip embedding plate 1. The twisting cover 8 can be rotated according to the oral cavity size of different patients, so as to adjust the arc direction of the arc-shaped lip embedding plate 1 to the most suitable size in the up and down direction of the patient's oral cavity lip. When the size degree of the arc direction of the arc-shaped lip embedding plate 1 is adjusted to the most suitable size in the up and down direction of the patient's oral cavity lip, the twisting cover 8 can be fixed by the locking assembly on one side of the twisting cover 8, so as to lock the sliding length of the arc-shaped plate 4 in the arc direction of the arc-shaped lip embedding plate 1 to the most suitable size extending in the up and down direction of the patient's oral cavity lip, so as to adapt to the problems of different oral cavity sizes of patients of different ages.
[0026] Refer to Figures 1 to 5, the pliers-type control mechanism includes a left plier 9 and a right plier 10. The left plier 9 and the right plier 10 are rotatably connected in a staggered manner up and down through a rotating shaft 11. The top ends of the jaws of the left plier 9 and the right plier 10 are respectively fixedly connected to both ends of a U-shaped elastic frame 2. Above the handle of the left plier 9, a second arc-shaped rack 12 is fixedly connected. The other end of the second arc-shaped rack 12 passes through the handle of the right plier 10 and is slidably connected to the right plier 10. A second cavity 13 is formed in the handle of the right plier 10. A toothed lock 14 is rotatably connected in the second cavity 13 through a hole shaft. The other end of the toothed lock 14 is meshed with the second arc-shaped rack 12 through a gear structure. A locking and control assembly is also provided on the toothed lock 14 for controlling the opening degree between the left plier 9 and the right plier 10. Press the left plier 9 and the right plier 10 in the inner and outer directions. The left plier 9 and the right plier 10 open and close left and right under the action of the rotating shaft 11. At the same time, the elasticity of the U-shaped elastic frame 2 extending in the left and right directions is controlled by the opening degree between the left plier 9 and the right plier 10. Furthermore, the size of the two arc-shaped lip embedding plates 1 symmetrically arranged on the U-shaped elastic frame 2 extending in the left and right directions is controlled. The control of the opening degree between the left plier 9 and the right plier 10 is completed through the mutual cooperation of the second arc-shaped rack 12 on the handle of the left plier 9 and the toothed lock 14. When the opening degree between the left plier 9 and the right plier 10 is adjusted to adapt to the size of the patient's oral cavity, the toothed lock 14 rotates in the second cavity 13 by adjusting the elasticity of the locking and control assembly until it meshes with the second arc-shaped rack 12 to complete self-locking. When it is necessary to re-adjust the opening degree between the left plier 9 and the right plier 10, the self-locking can be released by adjusting the elasticity of the locking and control assembly. By adjusting the locking and control assembly in the pliers-type control mechanism, the opening degree between the left plier 9 and the right plier 10 is maintained at the most suitable opening degree for the patient's lips, so as to meet the inspection requirements for different oral opening degrees.
[0027] Refer to Figures 1 to 5 , the saliva suction mechanism includes a fixed shaft 15. One end of the fixed shaft 15 is connected to the U-shaped elastic frame 2, and the other end is embedded with a rotatably connected rotating ball 16. The top end of the rotating ball 16 is connected to a saliva suction tube sleeve 17 through a connecting shaft. An upper saliva suction tube 18 is arranged in the saliva suction tube sleeve 17. The rear end of the upper saliva suction tube 18 is connected to a one-way valve 19. There are two one-way valves 19, and the two one-way valves 19 are connected through an air bag 20. The other end of one of the one-way valves 19 is connected to a rear saliva suction tube 21. Rotate the upper saliva suction tube 18 in the saliva suction tube sleeve 17 through the rotating ball 16 in all directions to adjust it to the most suitable position for sucking the patient's saliva. Squeeze the air bag 20 to generate air flow, and the one-way valve 19 generates suction force on the upper saliva suction tube 18, and the saliva in the patient's mouth is discharged from the rear saliva suction tube 21 through the two one-way valves 19, so as to solve the problem that long-term opening of the mouth will cause the patient's oral cavity to secrete a large amount of saliva and is easy to choke the patient, making the patient more comfortable during the inspection and operation.
[0028] Refer to Figures 1 to 5The locking assembly includes an L-shaped locking pin 22, and the twisting cover 8 is provided with a plurality of gear-shaped locking holes 23 along the circumferential direction. A locking base 24 is provided on the arc-shaped lip embedded plate 1. One end of the L-shaped locking pin 22 cooperates with the locking hole 23 to lock, and the other end is rotatably connected with the locking base 24 through a rotating shaft. The locking base 24 is located on one side of the twisting cover 8 and is also provided with a baffle 25. When the twisting cover 8 rotates to drive the arc plate 4 to slide in the arc direction of the arc-shaped lip embedded plate 1, and is locked at the size that is most suitable for the patient's oral lip to extend in the up and down direction, the locking base 24 is rotated. The inner L-shaped locking pin 22, when one end of the L-shaped locking pin 22 is rotated to contact the baffle 25, the other end of the L-shaped locking pin 22 is placed in the locking hole 23, and at the same time, the self-locking state of the arc plate 4 sliding in the arc direction of the arc-shaped lip embedding plate 1 is completed. When readjusting, it is only necessary to rotate the L-shaped locking pin 22 in the opposite direction to place it on the lip embedding plate 1 to release the self-locking state, and then the locking component can be adjusted according to the oral size of different patients to adjust the sliding length of the arc plate 4 in the arc direction of the arc-shaped lip embedding plate 1, so as to adapt to the different oral sizes of patients of different age groups.
[0029] Reference Figures 1 to 5, the locking control assembly includes a latch guide rail 26. A latch guide rail shaft 27 is arranged inside the latch guide rail 26 above the toothed latch 14. One side of the latch guide rail 26 is connected with a sliding rod 28. A fixed socket 29 is arranged on the side of the right clamp 10 close to the sliding rod 28. The fixed socket 29 is used to fix the sliding rod 28 and limit it. The sliding rod 28 can slide inside the fixed socket 29. On the side of the bottom end of the handle of the right clamp 10 and located close to the sliding rod 28, there is also arranged a sliding sleeve socket 30. The sliding rod 28 passes through the fixed socket 29 and the sliding sleeve socket 30 and is connected with a sliding column 31. A spring 32 is arranged inside the sliding sleeve socket 30. One end of the spring 32 abuts against the bottom of the sliding sleeve socket 30, and the other end abuts against the sliding column 31. The upper end of the sliding column 31 is connected with a pull rod 33. A slide rail 34 that cooperates with the pull rod 33 is arranged above the sliding sleeve socket 30. Pulling the pull rod 33 backward drives the sliding column 31 to move backward in the slide rail 34 inside the sliding sleeve socket 30. At the same time, the sliding rod 28 connected with the sliding column 31 slides backward, driving the latch guide rail 26 to move backward. At this time, the toothed latch 14 rotates inside the second cavity 13 under the action of the latch guide rail 26. The latch guide rail shaft 27 on the toothed latch 14 slides inside the latch guide rail 26, converting the circular motion of the toothed latch 14 inside the second cavity 13 into a linear motion in the linear direction of the sliding rod 28. Pulling the pull rod 33 backward can release the self-locking state of the toothed latch 14 meshing with the second arc-shaped rack 12, thereby adjusting the opening and closing degree between the left clamp 9 and the right clamp 10. On the contrary, when the opening and closing degree in the left-right direction of the two lip-embedding plates 1 arranged symmetrically reaches the most suitable opening and closing degree for the patient's oral lips, releasing the pull rod 33, the toothed latch 14 abuts against the side wall of the handle of the right clamp 10 under the action of the resilience of the spring 32 and meshes with the second arc-shaped rack 12 to form a self-locking state, so as to adapt to the problems of different oral sizes of patients of different ages.
[0030] Refer to Figures 1 to 5 , the sliding column 31 is located inside the sliding sleeve socket 30 and elastically abuts against the cover plate of the sliding sleeve socket 30 through the spring 32. The cover plate of the sliding sleeve socket 30 can limit the sliding column 31. When the sliding column 31 abuts against the cover plate of the sliding sleeve socket 30 under the action of the resilience of the spring 32, the toothed latch 14 abuts against the side wall of the handle of the right clamp 10 and meshes with the second arc-shaped rack 12 to form a self-locking state.
[0031] Refer to Figures 1 to 4 , the other end of the arc-shaped plate 4 extends outward and is placed outside the arc-shaped lip-embedding plate 1. And on both sides of its upper end, there are arranged lip-embedding baffles 35. The arrangement of the lip-embedding baffles 35 can be used for the arc-shaped lip-embedding plate 1 to better embed into the patient's lips, avoiding the extension of the arc-shaped plate 4 causing the patient's lips to slide out of the arc-shaped lip-embedding plate 1. A medical silica gel pad (not shown in the figure) is arranged on the surface of the lip-embedding plate 1 to provide buffering and protect the lips.
[0032] Refer toFigures 1 to 5 , a regulation bracelet 36 is provided at the lower end of the handles of the left forceps 9 and the right forceps 10. The opening and closing degrees of the left forceps 9 and the right forceps 10 can be more firmly controlled through the regulation bracelet 36. Moreover, the regulation bracelet 36 is arranged in the vertical direction on the surface of the lower end of the handles of the left forceps 9 and the right forceps 10, which is more convenient for the doctor to hold the regulation bracelet 36. The pull rod 33 is arranged in parallel on the right side of the regulation bracelet 36, which is convenient for the doctor to pull the pull rod 33 to control the opening and closing degrees of the left forceps 9 and the right forceps 10 while holding the regulation bracelet 36 during the examination.
[0033] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An oral surgery opening device, characterized in that, It includes symmetrically arranged arc-shaped lip embedding plates (1), a U-shaped elastic frame (2) and a pliers-type regulating mechanism. The two arc-shaped lip embedding plates (1) are connected to both ends of the U-shaped elastic frame (2). The pliers-type regulating mechanism is arranged between the U-shaped elastic frames (2). A saliva suction mechanism for sucking the saliva of the patient is arranged on the U-shaped elastic frame (2). A cavity (3) is formed inside the arc-shaped lip embedding plate (1). An arc-shaped plate (4) is slidably connected inside the cavity (3). An arc-shaped rack (5) is fixedly connected to the rear side of the arc-shaped plate (4). A transmission gear (6) is meshed with the arc-shaped rack (5). A transmission shaft (7) on the transmission gear (6) passes through the side wall of the arc-shaped lip embedding plate (1) and is fixedly connected to a twisting cover (8). A locking component is arranged on one side of the twisting cover (8) for locking and fixing the sliding of the arc-shaped plate (4).
2. The oral surgical opening device according to claim 1, characterized in that, The pliers-type regulating mechanism includes a left pliers (9) and a right pliers (10). The left pliers (9) and the right pliers (10) are rotatably connected in an up-and-down staggered manner through a rotating shaft (11). The top ends of the jaws of the left pliers (9) and the right pliers (10) are respectively fixedly connected to both ends of the U-shaped elastic frame (2). A second arc-shaped rack (12) is fixedly connected above the handle of the left pliers (9). The other end of the second arc-shaped rack (12) passes through the handle of the right pliers (10) and is slidably connected to the right pliers (10). A second cavity (13) is formed in the handle of the right pliers (10). A toothed locking buckle (14) is rotatably connected in the second cavity (13) through a hole shaft. The other end of the toothed locking buckle (14) is meshed with the second arc-shaped rack (12) through a gear structure. A locking and regulating component is also arranged on the toothed locking buckle (14) for regulating the opening degree between the left pliers (9) and the right pliers (10).
3. The oral surgical opening device according to claim 1, characterized in that, The saliva suction mechanism includes a fixed shaft (15). One end of the fixed shaft (15) is connected to the U-shaped elastic frame (2), and the other end is embedded with a rotatably connected rotating ball (16). The top end of the rotating ball (16) is connected to a saliva suction tube sleeve (17) through a connecting shaft. An upper saliva suction tube (18) is arranged inside the saliva suction tube sleeve (17). The rear end of the upper saliva suction tube (18) is connected to a one-way valve (19). There are two one-way valves (19). The two one-way valves (19) are connected through an air bag (20). The other end of the other one-way valve (19) is connected to a rear saliva suction tube (21).
4. The oral surgical opening device according to claim 1, characterized in that, The locking component includes an L-shaped locking pin (22). A plurality of locking holes (23) in the shape of a gear are formed in the circumferential direction of the twisting cover (8). A locking base (24) is arranged on the arc-shaped lip embedding plate (1). One end of the L-shaped locking pin (22) is cooperatively locked with the locking hole (23), and the other end is rotatably connected to the locking base (24) through a rotating shaft. A baffle (25) is also arranged on the locking base (24) on one side of the twisting cover (8).
5. The oral surgical opening device according to claim 2, characterized in that, The locking and regulating component includes a latch guide rail (26), a latch guide rail shaft (27) located above the toothed latch (14) is arranged in the latch guide rail (26), a sliding rod (28) is connected to one side of the latch guide rail (26), a fixed sleeve seat (29) is arranged on one side of the right clamp (10) close to the sliding rod (28), a sliding sleeve seat (30) is further arranged on one side of the bottom end of the handle of the right clamp (10) where the sliding rod (28) is located, the sliding rod (28) passes through the fixed sleeve seat (29) and the sliding sleeve seat (30) and is connected to a sliding column (31), a spring (32) is arranged in the sliding sleeve seat (30), one end of the spring (32) abuts against the bottom of the sliding sleeve seat (30), the other end abuts against the sliding column (31), a pull rod (33) is connected to the upper end of the sliding column (31), and a slide rail (34) matched with the pull rod (33) is arranged above the sliding sleeve seat (30).
6. The oral surgical opening device according to claim 5, characterized in that, The sliding column (31) is located in the sliding sleeve seat (30) and elastically abuts against the cover plate of the sliding sleeve seat (30) through the spring (32).
7. The oral surgical opening device according to claim 1, characterized in that, The other end of the arc-shaped plate (4) extends outwards and is placed outside the arc-shaped lip embedding plate (1), and lip embedding baffles (35) are arranged on both sides of the upper end thereof, and a medical silica gel pad is arranged on the surface of the lip embedding plate (1).
8. The oral surgical opening device according to claim 5, characterized in that, Regulating hand rings (36) are arranged at the lower ends of the handles of the left clamp (9) and the right clamp (10), and the pull rod (33) is arranged parallel to the right side of the regulating hand ring (36).