Mouth gag for oral examination and treatment

Abstract

The invention discloses a mouth gag for oral cavity examination and treatment, relates to the technical field of medical instruments, and aims to solve the technical problem of low functionality of mouth gags for oral cavity examination and treatment, and the mouth gag comprises a supporting mechanism, a supporting assembly A, a supporting assembly B, a supporting arc plate mechanism, an opposite adjusting mechanism, a clamping mechanism and an angle adjusting mechanism. According to the device, the opposite adjusting mechanism is arranged for adjusting, when the oral cavity of a patient is assisted in continuous opening in a stomatological surgery, the two supporting assemblies A and the two supporting assemblies B preliminarily support four points on the upper portion and the lower portion of the two sides of the interior of the oral cavity, so that the patient is opened, the device is attached to front teeth through the supporting arc plate mechanism, the front teeth are supported again, and the oral cavity of the patient is continuously opened. The supporting area is increased, so that a plurality of teeth are stressed together when the oral cavity of a patient is continuously opened, tooth damage is reduced in a long-time stomatological operation, and the technical problem that the mouth gag for oral examination and treatment is low in functionality is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly, to an oral examination and treatment mouth opener. Background Art

[0002] A mouth opener, also known as a gag, is a medical device used to hold open a patient's mouth. During a dental procedure, a mouth opener is required to assist in keeping the patient's mouth continuously open.

[0003] For existing mouth openers, the support structure of the mouth opener is relatively simple. During the process of the mouth opener supporting the teeth to open, relative displacement is formed between the teeth and the support part of the mouth opener. Moreover, most of the existing oral examination and treatment mouth openers have a small support area, which is likely to cause tooth damage during a long dental procedure and has low functionality. In view of this, we propose an oral examination and treatment mouth opener. Summary of the Invention

[0004] The purpose of the present invention is to provide an oral examination and treatment mouth opener to solve the technical problem of low functionality of the oral examination and treatment mouth opener.

[0005] To solve the above technical problems, the present invention provides the following technical solution: An oral examination and treatment mouth opener, comprising two support mechanisms and an opposing adjustment mechanism. The support mechanism includes symmetrically arranged support assembly A and support assembly B. Support assembly A is slidably connected to support assembly B. Support arc plate mechanisms are arranged in the gaps between the two support assembly As and the two support assembly Bs. Two ends of one of the support arc plate mechanisms are respectively rotatably connected to the two support assembly As, and two ends of the other support arc plate mechanism are respectively rotatably connected to the two support assembly Bs. The opposing adjustment mechanism is arranged in the gap between the two support arc plate mechanisms, and a locking mechanism is arranged on the opposing adjustment mechanism. The opposing adjustment mechanism includes two bent plates, both of which are arranged in the gap between the two support arc plate mechanisms, and the two bent plates are respectively fixedly connected to the corresponding support mechanism, support assembly A, and support assembly B. A straight plate is fixedly provided at the head end of the bent plate. A chute A is opened at one end of each of the two straight plates facing away from each other. Angle adjustment mechanisms are arranged on the two chutes A, and the movable ends of the two angle adjustment mechanisms are respectively connected to the two support arc plate mechanisms. By setting the opposing adjustment mechanism to adjust the support assembly A and support assembly B of one of the support mechanisms to open oppositely, and through the connection of the support arc plate mechanism, the support assembly A and support assembly B of the other support mechanism are also opened oppositely, so that the two support assembly As and the two support assembly Bs initially support the upper and lower four points on both sides of the teeth, causing the patient to open the mouth. By adjusting through the angle adjustment mechanism, the support arc plate mechanism rotates relative to the support mechanism until it fits the front teeth, and then supports the front teeth again, increasing the area of tooth support, ensuring that when assisting to keep the patient's mouth continuously open, multiple teeth are stressed together, reducing tooth damage, and solving the technical problem of low functionality of the oral examination and treatment mouth opener.

[0006] Preferably, the opposing adjustment mechanism further includes two folding plates arranged in a symmetrical structure. The folding plates are arranged on one side of the head end of the straight plate. Adjusting rings are fixedly provided at one end of each of the two folding plates away from the straight plate. Rotating blocks are fixedly provided at one end of each of the folding angles of the two folding plates close to each other. The two rotating blocks are arranged in a staggered structure, and an empty groove A is opened at a position of the folding angle of the folding plate close to the corresponding rotating block. The two rotating blocks are rotatably connected by a rotating rod A. A rotating groove A is opened at one end of the folding plate close to the straight plate. A rotating rod B is rotatably connected to the rotating groove A. A rotating seat A is rotatably connected to the rotating rod A. The two rotating seats A are respectively fixedly connected to the head ends of the two straight plates.

[0007] Preferably, an installation groove is opened on one side of the folding plate located above close to the adjusting ring. The end of the installation groove close to the straight plate is in an arc structure, and a round hole is opened at the head side of the installation groove.

[0008] Preferably, the jamming mechanism includes an arc-shaped tooth ring and a clamping strip block. The arc-shaped tooth ring is movably arranged at one end of the installation groove close to the straight plate block. The bottom end of the arc-shaped tooth ring is fixedly connected to the folding plate block located below. The clamping strip block is arranged in the installation groove relative to the position of the round hole. One end of the clamping strip block away from the arc-shaped tooth ring is rotatably connected to a rotating rod C. The rotating rod C is rotatably connected to the tail side of the installation groove. The rotating rod C and the round hole are elastically connected by a torsion spring. One end of the clamping strip block away from the arc-shaped tooth ring is fixedly provided with an adjusting strip block. The adjusting strip block and the clamping strip block form a V-shaped structure. One end of the clamping strip block close to the arc-shaped tooth ring is clamped and connected to the arc-shaped tooth ring.

[0009] Preferably, the support assembly B respectively includes a support block B. An empty groove B is opened in the support block A close to the support block B. A sliding rod is fixedly arranged on the empty groove B. The top end of the support block B is fixedly provided with an extension block. A chute B extending into the support block B is opened on the extension block. The sliding rod is slidably connected to the chute B;

[0010] Rotating grooves B are opened in both the support block A and the support block B. Activity grooves are opened on the head sides of the support block A and the support block B. The activity grooves are communicated with the rotating grooves B.

[0011] Preferably, arc grooves A are opened at both ends of the support block A and the support block B relatively far away from each other. A support arc block is slidably connected to the arc groove A. An embedding groove A is opened on the support arc block. An elastic arc block A is embedded in the embedding groove A. The tail end of the support arc block and the tail end of the arc groove A are elastically connected by a spring A. The spring A is in an arc-shaped structure. A protective plate is fixedly arranged at the tail end of the support arc block. The protective plate is adapted to the support arc block. An arc groove B is opened at the tail end of the arc groove A relative to the protective plate. The protective plate is slidably connected to the arc groove B.

[0012] Preferably, the support arc plate mechanism includes a support plate in an arc-shaped structure. Connecting plates are fixedly arranged at both ends of the support plate. The connecting plates are movably connected to the activity grooves. A rotating column is fixedly arranged at the tail end of the connecting plate. The rotating column is rotatably connected to the rotating groove B. A plurality of chutes C are uniformly opened at the top end of the support plate. The plurality of chutes C are arranged in a parallel structure. A plurality of ball clamping grooves are linearly and equally spaced at the top ends of the chutes C. An activity arc plate is arranged at the top end of the support plate. A plurality of sliders X are fixedly arranged at the bottom end of the activity arc plate relative to the positions of the plurality of chutes C. The sliders X are slidably connected to the chutes C. An embedding groove B is opened at the top end of the activity arc plate. An elastic arc block B is embedded in the embedding groove B.

[0013] Preferably, a sliding hole is provided at the bottom end of the slider X, a sliding column is slidably connected to the sliding hole, a clamping ball block is fixed to one end of the sliding column close to the clamping ball groove, the clamping ball block is clamped and connected to the clamping ball groove, and the sliding column and the sliding hole are elastically connected by a spring B.

[0014] Preferably, the angle adjustment mechanism includes a slider Y and a rotating shaft, the slider Y is slidably arranged on the slide groove A, a through hole is provided on the slider Y, a displacement ball block is fixed on the through hole, the rotating shaft is passed through the through hole, both ends of the rotating shaft are rotatably connected to the two ends of the slide groove A, the head end of the rotating shaft passes through the slide groove A and is fixed with a knob, a displacement guide groove is provided on the rotating shaft, the displacement guide groove is movably connected to the displacement ball block, a swivel seat B is fixed on the top of the slider Y, a connecting rod is rotatably connected to the swivel seat B, the tail end of the connecting rod is rotatably connected to the swivel seat C, and the support plate corresponding to the swivel seat C is fixedly connected.

[0015] Preferably, the displacement guide groove includes a quick thread groove and several deceleration guide grooves with partial thread structures. The deceleration guide groove located at the head end is connected to the quick thread groove. Several of the deceleration guide grooves are arranged in a linear equidistant structure, and any two adjacent deceleration guide grooves are connected through a limiting arc groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention adjusts the support components A and B of one of the support mechanisms to be spread apart towards each other by setting an opposing adjustment mechanism, and enables the support components A and B of the other support mechanism to be spread apart towards each other through the connection of the support arc plate mechanism. When assisting the continuous opening of the patient's mouth during oral surgery, the two support components A and the two support components B provide preliminary support to four upper and lower points on both sides of the mouth, causing the patient to open his mouth. The angle adjustment mechanism is used to adjust the support arc plate mechanism to rotate relative to the support mechanism until it fits with the front teeth, and the front teeth are re-supported, thereby increasing the support area. When assisting in ensuring the continuous opening of the patient's mouth, multiple teeth are subjected to force together, reducing tooth damage during long-term oral surgery, and solving the problem of low functionality of mouth openers used for oral examination and treatment.

[0018] 2. The present invention, through the design of the locking mechanism, allows the doctor to adjust the two adjustment rings relatively close to each other with one hand, and the arc-shaped toothed ring also rotates with the rotating rod A as the axis, the torsion spring deforms, and the clamping block moves adaptively. When the two support components A and the two support components B provide preliminary support to the four upper and lower points on both sides of the teeth, until the patient's mouth is continuously opened until it is adjusted to a position suitable for oral surgery, under the recovery elastic force of the torsion spring, the clamping block and the arc-shaped toothed ring are clamped, directly self-fixed, without the need for an additional fixing structure, easy to use, and further improved functionality.

[0019] 3. Through further design of support block A and support block B, the present invention enables the initial positions of the two support arc blocks to be respectively maintained at the relatively far - away ends of the two arc grooves A under the elastic force of spring A. When the support assemblies A and B support the teeth, the teeth are protected by contacting the elastic arc block A. When the support assemblies A and B move relatively far away from each other, under the biting force of the teeth, the elastic arc block A and the support arc block slide relative to the arc groove A, greatly reducing the wear of the teeth during the support process. And the elastic arc block A is arranged to be embedded in the embedding groove A, which is convenient for subsequent replacement. The guard plate and the arc groove B are provided to reduce the entry of saliva into the arc groove A, making it more hygienic and improving the service life, further enhancing the functionality of the present invention.

[0020] 4. Through further setting of the support arc plate mechanism, the present invention first enables the movable arc plate to slide along the chute C with the slider X, so that when the overall area of the support plate and the movable arc plate is relatively small, that is, it reduces the shielding area in the patient's oral cavity, improving the applicability to the tooth shapes of different patients. And the clamping ball block is arranged to be clamped and limited with the clamping ball groove under the elastic force of spring B to limit the movable arc plate and prevent the movable arc plate from running off automatically. The elastic arc block B is arranged to contact the teeth, and the elastic arc block B is embedded in the embedding groove B, which is convenient for subsequent replacement, further enhancing the functionality of the present invention.

[0021] 5. Through further design of the displacement guide groove, the displacement ball block has a relatively fast displacement speed in the fast - thread groove, improving the adjustment speed of the doctor. Then the displacement ball block enters the slow - speed guide groove and the limit arc groove for movement. When the displacement ball block moves in the slow - speed guide groove, the sliding speed of the slider Y along the chute A is reduced, thereby reducing the angular change speed of the support plate. When the elastic arc block B contacts the teeth tightly, the angular change speed of the support plate is slower, reducing the rotational resistance of the doctor when rotating the knob. Then the displacement ball block moves into the limit arc groove to limit the displacement ball block, preventing the elastic arc block B from being supported by the patient's teeth. When the elastic arc block B is supported by the patient's teeth, the elastic arc block B is subjected to the reaction force of the teeth, causing the displacement ball block to drive the slider Y to slide along the chute A, and the elastic arc block B is relatively separated from the patient's teeth, resulting in a decrease in the support force, ensuring the support effect of the support arc plate mechanism, and further enhancing the functionality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the partial structural explosion schematic diagram of the opposite - direction adjustment mechanism and the jamming mechanism of the present invention;

[0024] Figure 3 is Figure 2 the partial structural enlarged schematic diagram;

[0025] Figure 4 is Figure 1 the schematic diagram of the explosion of the partial structure of

[0026] Figure 5 the schematic diagram of the explosion structure of the support mechanism of the present invention;

[0027] Figure 6 the schematic diagram of the sectional structure of the support mechanism of the present invention;

[0028] Figure 7 is the partial structure schematic of the angle adjustment mechanism of the present invention Figure 1 ;

[0029] Figure 8 is the partial structure schematic of the angle adjustment mechanism of the present invention Figure 2 ;

[0030] Figure 9 is the schematic diagram of the explosion structure of the support arc plate mechanism of the present invention;

[0031] Figure 10 is Figure 9 the enlarged schematic diagram of the local structure of

[0032] Explanation of the reference numerals in the figure:

[0033] 1. Support mechanism; 2. Support component A; 3. Support component B; 4. Support arc plate mechanism; 5. Opposite adjustment mechanism; 6. Jamming mechanism; 7. Angle adjustment mechanism;

[0034] 21. Support block A; 22. Empty slot B; 23. Slide bar; 24. Rotating slot B; 25. Activity slot; 26. Arc slot A; 27. Support arc block; 28. Embedded slot A; 29. Elastic arc block A;

[0035] 31. Support block B; 32. Extension block; 33. Slide slot B; 34. Spring A; 35. Guard plate; 36. Arc slot B; 49. Elastic arc block B;

[0036] 41. Support plate; 42. Connecting plate; 43. Rotating column; 44. Slide slot C; 45. Clamping ball slot; 46. Movable arc plate; 47. Slide block X; 48. Embedded slot B;

[0037] 50. Adjusting finger ring; 51. Bent plate block; 52. Straight plate block; 53. Folded plate block; 54. Rotating block; 55. Empty slot A; 56. Rotating rod A; 57. Rotating slot A; 58. Rotating rod B; 59. Rotating seat A;

[0038] 61. Arc-shaped toothed ring; 62. Clamping strip block; 63. Rotating rod C; 64. Torsion spring; 65. Adjusting strip block;

[0039] 70. Displacement ball block; 71. Slide block Y; 72. Through hole; 73. Displacement guide groove; 74. Rotating shaft; 75. Knob; 76. Rotating base B; 77. Connecting rod; 78. Rotating base C;

[0040] 471. Slide hole; 472. Slide post; 493. Clamping and receiving ball block; 474. Spring B;

[0041] 521. Slide groove A;

[0042] 531. Installation groove; 532. Round hole;

[0043] 731. Quick thread groove; 732. Slow speed guide groove; 733. Limit arc groove. Specific implementation mode

[0044] As Figures 1 to 10 shown, an oral examination and treatment mouth opener related to the present invention, an oral examination and treatment mouth opener, includes two support mechanisms 1 and an opposing adjustment mechanism 5. The support mechanism 1 includes symmetrically arranged support component A2 and support component B3. The support component A2 is slidably connected to the support component B3. Support arc plate mechanisms 4 are arranged in the gaps between the two support component A2s and between the two support component B3s. Both ends of one of the support arc plate mechanisms 4 are respectively rotatably connected to the two support component A2s, and both ends of the other support arc plate mechanism 4 are respectively rotatably connected to the two support component B3s. The opposing adjustment mechanism 5 is arranged in the gap between the two support arc plate mechanisms 4, and a locking mechanism 6 is arranged on the opposing adjustment mechanism 5; the opposing adjustment mechanism 5 includes two bent plate blocks 51. Both of the two bent plate blocks 51 are arranged in the gap between the two support arc plate mechanisms 4, and the two bent plate blocks 51 are respectively fixedly connected to the corresponding support mechanism 1, support component A2, and support component B3. A straight plate block 52 is fixedly provided at the head end of the bent plate block 51. Slide grooves A521 are respectively opened at the relatively far ends of the two straight plate blocks 52. Angle adjustment mechanisms 7 are arranged on the two slide grooves A521. The movable ends of the two angle adjustment mechanisms 7 are respectively connected to the two support arc plate mechanisms 4. Through the above settings of the present invention, the opposing adjustment mechanism 5 can adjust the opposing expansion of the support component A2 and support component B3 of one of the support mechanisms 1, and through the connection of the support arc plate mechanism 4, the support component A2 and support component B3 of the other support mechanism 1 are also oppositely expanded. The support arc plate mechanism 4 is rotated relative to the support mechanism 1 through the adjustment of the angle adjustment mechanism 7.

[0045] In an embodiment of the present invention, the opposite adjustment mechanism 5 further includes two folding plates 53 arranged in a symmetric structure. The folding plates 53 are provided on one side of the head end of the straight plate 52. Adjustment rings 50 are fixedly provided at one end of the two folding plates 53 away from the straight plate 52. Rotating blocks 54 are fixedly provided at one end of the folding corners of the two folding plates 53 relatively close to each other. The two rotating blocks 54 are arranged in a staggered structure. And empty slots A55 are provided at positions of the folding corners of the folding plates 53 relatively close to each other corresponding to the rotating blocks 54. The two rotating blocks 54 are rotatably connected by a rotating rod A56. A rotating slot A57 is provided at one end of the folding plate 53 close to the straight plate 52. A rotating rod B58 is rotatably connected to the rotating slot A57. A rotating seat A59 is rotatably connected to the rotating rod A56. The two rotating seats A59 are respectively fixedly connected to the head ends of the two straight plates 52. An installation slot 531 is provided on one side of the folding plate 53 above close to the adjustment ring 50. One end of the installation slot 531 close to the straight plate 52 is in an arc structure. A round hole 532 is provided at the head side of the installation slot 531. Through the above arrangement, when a doctor adjusts the two adjustment rings 50 with one hand in the present invention, the two folding plates 53 both rotate relative to the rotating rod A56 along with the rotating blocks 54, causing the rotating rod B58 to drive the rotating seat A59 to move, resulting in a change in the gap distance between the two straight plates 52 and the two bent plates 51, and driving the support assembly A2 and the support assembly B3 to slide relative to each other.

[0046] In an embodiment of the present invention, the locking mechanism 6 includes an arc-shaped toothed ring 61 and a clamping strip 62. The arc-shaped toothed ring 61 is movably provided at one end of the installation slot 531 close to the straight plate 52. The bottom end of the arc-shaped toothed ring 61 is fixedly connected to the folding plate 53 below. The clamping strip 62 is provided in the installation slot 531 at a position corresponding to the round hole 532. A rotating rod C63 is rotatably connected to one end of the clamping strip 62 away from the arc-shaped toothed ring 61. The rotating rod C63 is rotatably connected to the tail side of the installation slot 531. The rotating rod C63 and the round hole 532 are elastically connected by a torsion spring 64. An adjustment strip 65 is fixedly provided at one end of the clamping strip 62 away from the arc-shaped toothed ring 61. The adjustment strip 65 and the clamping strip 62 form a V-shaped structure. One end of the clamping strip 62 close to the arc-shaped toothed ring 61 is in clamping connection with the arc-shaped toothed ring 61. Through the design of the locking mechanism 6 in the present invention, when a doctor adjusts the two adjustment rings 50 to be relatively close to each other with one hand, the arc-shaped toothed ring 61 also rotates with the rotating rod A56 as the axis, the torsion spring 64 deforms, and the clamping strip 62 moves adaptively. When the two support assemblies A2 and the two support assemblies B3 initially support the four points on the upper and lower sides of the teeth until the patient's oral cavity continues to open until it is adjusted to be suitable for a dental surgery, under the restoring elastic force of the torsion spring 64, the clamping strip 62 is clamped with the arc-shaped toothed ring 61, directly self-fixing, without an additional fixing structure, which is convenient to use and further improves the functionality.

[0047] In an embodiment of the present invention, the support assembly B3 respectively includes a support block B31. An empty slot B22 is provided in the support block A21 close to the support block B31. A sliding rod 23 is fixed on the empty slot B22. The top end of the support block B31 is fixedly provided with an extension block 32. A sliding slot B33 extending into the support block B31 is provided on the extension block 32. The sliding rod 23 is slidably connected with the sliding slot B33. Rotating slots B24 are provided in both the support block A21 and the support block B31. Activity slots 25 are provided on the head sides of both the support block A21 and the support block B31. The activity slots 25 are communicated with the rotating slots B24.

[0048] In an embodiment of the present invention, arc slots A26 are provided at the relatively far - away ends of the support block A21 and the support block B31. A support arc block 27 is slidably connected to the arc slots A26. An embedding slot A28 is provided on the support arc block 27. A resilient arc block A29 is embedded in the embedding slot A28. The tail end of the support arc block 27 and the tail end of the arc slot A26 are elastically connected by a spring A34. The spring A34 is in an arc - shaped structure. A guard plate 35 is fixedly provided at the tail end of the support arc block 27. The guard plate 35 is adapted to the support arc block 27. An arc slot B36 is provided opposite to the guard plate 35 at the tail end of the arc slot A26. The guard plate 35 is slidably connected with the arc slot B36. By further designing the support block A21 and the support block B31, in the elastic force of the spring A34, the initial positions of the two support arc blocks 27 can be respectively maintained at the relatively far - away ends of the two arc slots A26. When the support assembly A2 and the support assembly B3 support the teeth, the teeth contact the resilient arc block A29 to protect the teeth. When the support assembly A2 and the support assembly B3 move relatively far away, under the biting force of the teeth, the resilient arc block A29 and the support arc block 27 slide relative to the arc slot A26, greatly reducing the wear of the teeth during the support process. And the resilient arc block A29 is embedded in the embedding slot A28, which is convenient for subsequent replacement. The guard plate 35 and the arc slot B36 are provided to reduce the entry of saliva into the arc slot A26, making it more hygienic and improving the service life, further enhancing the functionality of the present invention.

[0049] In an embodiment of the present invention, the support arc plate mechanism 4 includes a support plate 41 with an arc-shaped structure. Connecting plates 42 are fixedly provided at both ends of the support plate 41. The connecting plates 42 are movably connected to the movable groove 25. A rotating column 43 is fixedly provided at the tail end of the connecting plate 42. The rotating column 43 is rotatably connected to the rotating groove B24. A plurality of sliding grooves C44 are evenly formed at the top end of the support plate 41. The plurality of sliding grooves C44 are arranged in a parallel structure. A plurality of ball-catching grooves 45 are formed at the top end of the sliding grooves C44 in a linear and equally spaced structure. An active arc plate 46 is provided at the top end of the support plate 41. A plurality of sliding blocks X47 are fixedly provided at the bottom end of the active arc plate 46 corresponding to the positions of the plurality of sliding grooves C44. The sliding blocks X47 are slidably connected to the sliding grooves C44. An embedding groove B48 is formed at the top end of the active arc plate 46. A resilient arc block B49 is embedded in the embedding groove B48. A sliding hole 471 is formed at the bottom end of the sliding block X47. A sliding column 472 is slidably connected to the sliding hole 471. A ball-catching block 493 is fixedly provided at one end of the sliding column 472 close to the ball-catching groove 45. The ball-catching block 493 is snap-connected to the ball-catching groove 45. The sliding column 472 and the sliding hole 471 are elastically connected by a spring B474. By providing the connecting plate 42 and the rotating column 43, the support arc plate mechanism 4 can rotate relative to the rotating groove B24, and the connecting plate 42 can move relative to the movable groove 25. Through further setting of the support arc plate mechanism 4 in the present invention, first, the active arc plate 46 can slide along the sliding groove C44 with the sliding block X47, so that the support plate 41 and the active arc plate 46 have a relatively small overall area, that is, reduce the shielding area in the patient's oral cavity, improve the applicability to the tooth shapes of different patients, and set the ball-catching block 493 to be snap-limited to the ball-catching groove 45 under the elastic action of the spring B474 to limit the active arc plate 46 and prevent the active arc plate 46 from automatically running off. The resilient arc block B49 is in contact with the teeth, and the resilient arc block B49 is embedded in the embedding groove B48, which is convenient for subsequent replacement, and further improves the functionality of the present invention.

[0050] In an embodiment of the present invention, the angle adjustment mechanism 7 includes a slider Y71 and a rotating shaft 74. The slider Y71 is slidably disposed on the chute A521. A through hole 72 is formed in the slider Y71, and a displacement ball block 70 is fixedly provided on the through hole 72. The rotating shaft 74 passes through the through hole 72, and both ends of the rotating shaft 74 are rotatably connected to both ends of the chute A521. The head end of the rotating shaft 74 passes through the chute A521 and is fixedly provided with a knob 75. A displacement guide groove 73 is formed in the rotating shaft 74, and the displacement guide groove 73 is movably connected to the displacement ball block 70. A rotating seat B76 is fixedly provided at the top end of the slider Y71, and a connecting rod 77 is rotatably connected to the rotating seat B76. The tail end of the connecting rod 77 is rotatably connected to a rotating seat C78, and the corresponding support plate 41 of the rotating seat C78 is fixedly connected. With the above arrangement of the present invention, the connecting rod 77, the bent plate block 51, the straight plate block 52 and the support plate 41 form a triangular stable structure. When the knob 75 is rotated, the rotating shaft 74 and the displacement ball block 70 rotate, so that the displacement ball block 70 moves relative to the displacement ball block 70, driving the slider Y71 to slide along the chute A521, indirectly enabling the connecting rod 77 to move adaptively, thereby changing the angle of the support plate 41 until the elastic arc block B49 is in close contact with the teeth, and supporting the front teeth of the patient.

[0051] In an embodiment of the present invention, the displacement guide groove 73 includes a fast thread groove 731 and several slow guide grooves 732 having a partial thread structure. The slow guide groove 732 at the head end is communicated with the fast thread groove 731. The several slow guide grooves 732 are arranged in a linear equidistant structure, and any two adjacent slow guide grooves 732 are communicated through a limit arc groove 733. Through the further design of the displacement guide groove 73 of the present invention, the displacement speed of the displacement ball block 70 in the fast thread groove 731 is relatively fast, improving the adjustment speed of the doctor. Then, the displacement ball block 70 enters the slow guide groove 732 and the limit arc groove 733 to move. When the displacement ball block 70 moves in the slow guide groove 732, the sliding speed of the slider Y71 along the chute A521 is reduced, thereby reducing the angle change speed of the support plate 41. When the elastic arc block B49 is in close contact with the teeth, the angle change speed of the support plate 41 is slower, reducing the rotation resistance of the doctor when rotating the knob 75. Then, the displacement ball block 70 is moved into the limit arc groove 733 to limit the displacement ball block 70, preventing the elastic arc block B49 from being supported by the teeth of the patient. When the elastic arc block B49 is supported by the teeth of the patient, the elastic arc block B49 is driven by the reaction force of the teeth to cause the displacement ball block 70 to drive the slider Y71 to slide along the chute A521, and the elastic arc block B49 is relatively separated from the teeth of the patient, resulting in a decrease in the supporting force, ensuring the supporting effect of the supporting arc plate mechanism 4, and further improving the functionality of the present invention.

[0052] Working principle: This embodiment provides an oral cavity examination and treatment mouth opener. When in use, the relative positions of the two movable arc plates 46 and the two support plates 41 are adjusted according to the patient's tooth type. The movable arc plate 46 is moved, the slider X47 moves along the chute C44, and the clamping ball block 493 is clamped and limited to the clamping ball groove 45 under the elastic force of the spring B474 to limit the movable arc plate 46 and prevent the movable arc plate 46 from automatically running off. A new elastic arc block B49 is embedded in the groove B48, and a new elastic arc block A29 is embedded in the groove A28;

[0053] The doctor tells the patient to open his mouth, inserts the two support mechanisms 1 into the appropriate positions of the patient's oral cavity opposite the teeth, and the doctor tells the patient to bite the elastic arc block A29 with his teeth;

[0054] The doctor adjusts the two adjustment rings 50 to be relatively close to each other with one hand. The two folding plates 53 both rotate relative to the rotating rod A56 along with the rotating block 54, causing the rotating rod B58 to drive the rotating seat A59 to move, resulting in a change in the gap distance between the two straight plates 52 and the two bent plates 51, driving the relative sliding of the support assembly A2 and the support assembly B3. The arc-shaped tooth ring 61 also rotates around the rotating rod A56 as the axis, the torsion spring 64 deforms, and the clamping strip block 62 moves adaptively. When the two support assemblies A2 and the two support assemblies B3 initially support the four upper and lower points on both sides of the teeth, the teeth contact the elastic arc block A29 to protect the teeth. When the support assemblies A2 and B3 move relatively away from each other, under the biting force of the teeth, the elastic arc block A29 and the support arc block 27 slide relative to the arc groove A26, greatly reducing the wear on the teeth during the support process. The guard plate 35 and the arc groove B36 are provided to reduce the entry of saliva into the arc groove A26 until the patient's oral cavity remains open until it is adjusted to be suitable for dental surgery. Under the restoring elastic force of the torsion spring 64, the clamping strip block 62 is clamped with the arc-shaped tooth ring 61 and is directly self-fixed;

[0055] The doctor rotates the knob 75, and the rotating shaft 74 and the displacement ball block 70 rotate, causing the displacement ball block 70 to move relative to the displacement ball block 70, driving the slider Y71 to slide along the chute A521, indirectly causing the connecting rod 77 to move adaptively, so that the angle of the support plate 41 changes until the elastic arc block B49 is in close contact with the teeth, supporting the front teeth of the patient. Among them, the displacement ball block 70 has a relatively fast displacement speed in the fast-thread groove 731, improving the adjustment speed of the doctor. Then, the displacement ball block 70 enters the slow-speed guide groove 732 and the limit arc groove 733 to move. When the displacement ball block 70 moves in the slow-speed guide groove 732, the sliding speed of the slider Y71 along the chute A521 is reduced, thus reducing the angle change speed of the support plate 41. When the elastic arc block B49 is in close contact with the teeth, the angle change speed of the support plate 41 is slower, reducing the rotation resistance of the doctor rotating the knob 75. Then, the displacement ball block 70 is moved into the limit arc groove 733 to limit the displacement ball block 70, preventing the elastic arc block B49 from being supported by the patient's teeth. When the elastic arc block B49 is supported by the patient's teeth, the elastic arc block B49 is subjected to the reaction force of the teeth, causing the displacement ball block 70 to drive the slider Y71 to slide along the chute A521, and the elastic arc block B49 is relatively separated from the patient's teeth, resulting in a decrease in the supporting force, ensuring the supporting effect of the supporting arc plate mechanism 4;

[0056] After the oral surgery is completed, the doctor rotates the knob 75 to restore the supporting arc plate mechanism 4 to its initial state. The doctor presses the adjustment strip 65 with a finger, causing the clamping strip 62 to disengage from the arc-shaped gear ring 61. Under the biting force of the patient's teeth, the opposing adjustment mechanism 5 and the supporting mechanism 1 both return to their initial states. The doctor tells the patient to open their mouth and removes the device;

[0057] The medical staff removes the elastic arc block B49 and the elastic arc block A29 and throws them away, and cleans and disinfects the device except for the elastic arc block B49 and the elastic arc block A29 for future use.

[0058] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. An oral examination and treatment mouth opener, characterized in that, It includes two support mechanisms (1) and an opposed adjustment mechanism (5). The support mechanism (1) includes symmetrically arranged support component A (2) and support component B (3). The support component A (2) is slidably connected to the support component B (3). Support arc plate mechanisms (4) are arranged in the gaps between the two support component A (2)s and between the two support component B (3)s. One end of one of the support arc plate mechanisms (4) is rotatably connected to the two support component A (2)s respectively, and one end of the other support arc plate mechanism (4) is rotatably connected to the two support component B (3)s respectively. The opposed adjustment mechanism (5) is arranged in the gap between the two support arc plate mechanisms (4), and a locking mechanism (6) is arranged on the opposed adjustment mechanism (5). The opposed adjustment mechanism (5) includes two bent plates (51). Both of the two bent plates (51) are arranged in the gap between the two support arc plate mechanisms (4), and the two bent plates (51) are fixedly connected to the corresponding support mechanism (1), support component A (2), and support component B (3) respectively. A straight plate (52) is fixedly arranged at the head end of the bent plate (51). A chute A (521) is opened at one end of each of the two straight plates (52) facing away from each other. Angle adjustment mechanisms (7) are arranged on the two chutes A (521), and the movable ends of the two angle adjustment mechanisms (7) are respectively connected to the two support arc plate mechanisms (4).

2. The mouth opener for oral examination and treatment according to claim 1, wherein The opposed adjustment mechanism (5) further includes two folding plates (53) arranged in a symmetric structure. The folding plates (53) are arranged on one side of the head end of the straight plate (52). Adjusting rings (50) are fixedly arranged at one end of each of the two folding plates (53) away from the straight plate (52). Rotating blocks (54) are fixedly arranged at one end of each of the two folding plates (53) near the folding corner and facing each other. The two rotating blocks (54) are arranged in a staggered structure, and an empty slot A (55) is opened at a position of the folding corner of the folding plate (53) near the corresponding rotating block (54). The two rotating blocks (54) are rotatably connected by a rotating rod A (56). A rotating slot A (57) is opened at one end of the folding plate (53) near the straight plate (52). A rotating rod B (58) is rotatably connected to the rotating slot A (57). A rotating seat A (59) is rotatably connected to the rotating rod A (56), and the two rotating seats A (59) are fixedly connected to the head ends of the two straight plates (52) respectively.

3. The mouth opener for oral examination and treatment according to claim 2, wherein, An installation slot (531) is opened on one side of the folding plate (53) located above near the adjusting ring (50). One end of the installation slot (531) near the straight plate (52) is in an arc structure, and a round hole (532) is opened at the head side of the installation slot (531).

4. The mouth opener for oral examination and treatment according to claim 3, characterized in that, The jamming mechanism (6) includes an arc-shaped tooth ring (61) and a clamping strip block (62). The arc-shaped tooth ring (61) is movably arranged at one end of the mounting groove (531) close to the straight plate block (52). The bottom end of the arc-shaped tooth ring (61) is fixedly connected to the folded plate block (53) located below. The clamping strip block (62) is arranged in the mounting groove (531) relative to the position of the circular hole (532). One end of the clamping strip block (62) away from the arc-shaped tooth ring (61) is rotatably connected to a rotating rod C (63). The rotating rod C (63) is rotatably connected to the tail side of the mounting groove (531). The rotating rod C (63) and the circular hole (532) are elastically connected by a torsion spring (64). One end of the clamping strip block (62) away from the arc-shaped tooth ring (61) is fixedly provided with an adjusting strip block (65). The adjusting strip block (65) and the clamping strip block (62) form a V-shaped structure. One end of the clamping strip block (62) close to the arc-shaped tooth ring (61) is clamped and connected to the arc-shaped tooth ring (61).

5. The oral cavity inspection and treatment mouth opening device according to claim 4, characterized in that: The support assembly A (2) includes a support block A (21). The support assemblies B (3) each include a support block B (31). The support block A (21) is provided with an empty groove B (22) close to the support block B (31). A sliding rod (23) is fixedly arranged on the empty groove B (22). The top end of the support block B (31) is fixedly provided with an extension block (32). A sliding groove B (33) extending into the support block B (31) is opened on the extension block (32). The sliding rod (23) is slidably connected to the sliding groove B (33). Rotating grooves B (24) are respectively opened in the support block A (21) and the support block B (31). Activity grooves (25) are respectively opened at the head sides of the support block A (21) and the support block B (31). The activity grooves (25) are communicated with the rotating grooves B (24).

6. The mouth opener for oral examination and treatment according to claim 5, characterized in that, Arc grooves A (26) are respectively opened at the relatively far ends of the support block A (21) and the support block B (31). A support arc block (27) is slidably connected to the arc groove A (26). An embedding groove A (28) is opened on the support arc block (27). An elastic arc block A (29) is embedded in the embedding groove A (28). The tail end of the support arc block (27) is elastically connected to the tail end of the arc groove A (26) by a spring A (34). The spring A (34) is in an arc-shaped structure. A protection plate (35) is fixedly arranged at the tail end of the support arc block (27). The protection plate (35) is adapted to the support arc block (27). An arc groove B (36) is opened at the tail end of the arc groove A (26) relative to the protection plate (35). The protection plate (35) is slidably connected to the arc groove B (36).

7. The mouth opener for oral examination and treatment according to claim 6, wherein The support arc plate mechanism (4) includes a support plate (41) with an arc-shaped structure. Both ends of the support plate (41) are fixedly provided with connecting plates (42). The connecting plates (42) are movably connected to the movable slots (25). A rotating column (43) is fixedly provided at the tail end of the connecting plate (42). The rotating column (43) is rotatably connected to the rotating slot B (24). A plurality of sliding slots C (44) are evenly opened at the top end of the support plate (41). The plurality of sliding slots C (44) are arranged in a parallel structure. A plurality of ball-catching slots (45) are linearly and equally spaced at the top end of the sliding slot C (44). An active arc plate (46) is provided at the top end of the support plate (41). A plurality of sliding blocks X (47) are fixedly provided at the bottom end of the active arc plate (46) corresponding to the positions of the plurality of sliding slots C (44). The sliding blocks X (47) are slidably connected to the sliding slots C (44). An embedding slot B (48) is opened at the top end of the active arc plate (46). An elastic arc block B (49) is embedded in the embedding slot B (48).

8. The mouth opener for oral examination and treatment according to claim 7, wherein A sliding hole (471) is opened at the bottom end of the sliding block X (47). A sliding column (472) is slidably connected to the sliding hole (471). A ball-catching block (493) is fixedly provided at one end of the sliding column (472) close to the ball-catching slot (45). The ball-catching block (493) is snap-connected to the ball-catching slot (45). The sliding column (472) and the sliding hole (471) are elastically connected by a spring B (474).

9. The mouth opener for oral examination and treatment according to claim 8, characterized in that, The angle adjustment mechanism (7) includes a sliding block Y (71) and a rotating shaft (74). The sliding block Y (71) is slidably arranged on the sliding slot A (521). A through hole (72) is opened on the sliding block Y (71). A displacement ball block (70) is fixedly provided on the through hole (72). The rotating shaft (74) passes through the through hole (72). Both ends of the rotating shaft (74) are rotatably connected to both ends of the sliding slot A (521). The head end of the rotating shaft (74) passes through the sliding slot A (521) and is fixedly provided with a knob (75). A displacement guide slot (73) is opened on the rotating shaft (74). The displacement guide slot (73) is movably connected to the displacement ball block (70). A rotating seat B (76) is fixedly provided at the top end of the sliding block Y (71). A connecting rod (77) is rotatably connected to the rotating seat B (76). The tail end of the connecting rod (77) is rotatably connected to a rotating seat C (78). The rotating seat C (78) is fixedly connected to the corresponding support plate (41).

10. The mouth opener for oral examination and treatment according to claim 9, characterized in that, The displacement guide slot (73) includes a fast-threaded slot (731) and a plurality of slow-speed guide slots (732) with a partial threaded structure. The slow-speed guide slot (732) at the head end is communicated with the fast-threaded slot (731). The plurality of slow-speed guide slots (732) are arranged in a linear and equally spaced structure. Any two adjacent slow-speed guide slots (732) are communicated through a limiting arc slot (733).

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