Oral cavity expanding device for oral cavity examination

Abstract

The invention relates to the technical field of oral cavity expansion for oral cavity examination, and discloses an oral cavity expansion device for oral cavity examination, which is characterized in that the outer wall of an outer push plate I is fixedly connected with a spring telescopic rod I. The end, far away from the outer push plate I, of the spring telescopic rod I is fixedly connected with a pressure plate I; aiming at the problems of large contact area between conventional expanding equipment and a cavity and more observation dead angles, the equipment is simplified, when a patient bites the equipment, one of the buffer assembly and the pressed assembly generates an outward thrust to force a rubber sleeve and a contact line to generate an outward thrust, and the contact area of the rubber sleeve and the contact line is reduced. The device provides outward supporting force for the upper jaw and the lower jaw of a patient to limit closing of the oral cavity of the patient, and through application of the components, the supporting area of the device is reduced, meanwhile, the operation space of medical staff is enlarged, and limitation of the device to the medical staff is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oral cavity expansion and expansion devices for oral cavity inspection. Background Art

[0002] During an actual oral examination, the device can gently and effectively open the patient's mouth to an appropriate degree through specific structural designs, such as adjustable struts and support components that conform to the contours of the oral cavity. This not only overcomes fatigue caused by the patient's own muscle strength limitations or prolonged mouth opening, ensuring that the mouth remains stably open, but also provides ample operating space for doctors, allowing them to use professional examination tools such as oral probes and mouth mirrors to conduct meticulous observation and inspection of various parts of the oral cavity, including teeth, gums, and mucosa. At the same time, with the help of this device, doctors can also break through the limitations of conventional mouth opening and penetrate deep into the oral cavity, such as conducting comprehensive and precise examinations of areas such as the throat and palate, thereby providing strong support for the accurate diagnosis of oral diseases.

[0003] Among them, oral expansion devices often place external support brackets at the positions of canines and incisors, and then manually twist them to force the upper and lower jaws to separate. However, when using the above method, the coverage area is large, resulting in a large blind spot in the field of view of the device. To address the above problems, the following solutions are proposed. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an oral cavity expansion device for oral examination, comprising a handle, a fixing frame being fixedly connected to the side wall of the handle; The external support mechanism is fixedly connected to the side wall of the fixed frame. When the device is inserted into the patient's posterior molar position, the external support mechanism will force the patient's upper and lower jaws to separate; A pushing mechanism is slidably connected to the outer wall of the external support mechanism and is used to provide an outward pushing force for the external support mechanism; The swing mechanism is fixedly connected to the outer wall of the pushing mechanism. When the pushing mechanism is deformed, the swing mechanism will force the pushing mechanism to deform faster. Before use, the staff holds the handle and inserts the device into the patient's back molar position, and ensures that the patient's upper and lower jaws can be clamped slightly.

[0005] Preferably, the external support mechanism includes: A contact assembly, the contact assembly being fixedly connected to a side wall of the fixing frame via a support member; The support member includes a fixing ring fixedly connected to the side wall of the fixing frame, and a rubber sleeve is fixedly connected to the outer wall of the fixing ring; A fixing assembly, the fixing assembly being fixedly connected to the inner wall of the fixing ring through a positioning piece; The positioning member includes a support plate fixedly connected to the inner wall of the fixing ring, and a sliding rod is slidably connected inside the through hole groove of the support plate; The sliding rod can slide along the inner wall of the support plate, thereby forcing the pushing mechanism to deform.

[0006] Preferably, the pushing mechanism includes: A buffer assembly, the buffer assembly is fixedly connected to the inner wall of the rubber sleeve through a pushing piece; The pushing member includes two outer push plates 1 fixedly connected to the inner wall of the rubber sleeve, a spring telescopic rod 1 fixedly connected to the outer wall of the outer push plate 1, and a pressure plate 1 fixedly connected to the end of the spring telescopic rod 1 away from the outer push plate 1; A pressure-bearing component, the pressure-bearing component is fixedly connected to the inner wall of the rubber sleeve through an auxiliary component; The auxiliary component includes a second outer push plate fixedly connected to the inner wall of the rubber sleeve, a second spring telescopic rod fixedly connected to the outer wall of the second outer push plate, and a second pressure plate fixedly connected to the end of the second spring telescopic rod away from the second outer push plate; When the sliding rod slides, the buffer component and the pressure component are forced to produce different deformations, so that the contact position between the device and the tooth socket is changed.

[0007] Preferably, the swing mechanism comprises: A limiting assembly, the limiting assembly being fixedly connected to the outer wall of the support plate via a rotating member; The rotating member includes a fixing plate fixedly connected to the outer wall of the supporting plate; A pressure assembly, the pressure assembly is fixedly connected to the outer wall of the sliding rod through a telescopic member; The telescopic member includes a fixed tube fixedly connected to the outer wall of the sliding rod, a partition is fixedly connected to the top of the fixed tube, a sliding block is slidably connected to the inner wall of the partition, and a rolling column is rotatably connected to the inner wall of the through hole of the sliding block; When the sliding rod slides, the sliding rod will drive the sliding block and the rolling column to move synchronously.

[0008] Preferably, the contact assembly includes a contact pattern fixedly connected to the outer wall of the rubber sleeve; Among them, when the device is inserted into the position of the posterior molars, the lines of the contact pattern will contact the tooth grooves of the posterior molars, increasing the friction between the device and the teeth.

[0009] Preferably, the fixing assembly includes a fixing rod 1 fixedly connected to the top of the sliding rod, and an end of the sliding rod away from the fixing rod 1 is fixedly connected to a fixing rod 2; When the sliding rod moves, the first fixed rod and the second fixed rod will also move.

[0010] Preferably, the buffer assembly includes a rotating rod 1 rotatably connected to the bottom of the pressure plate 1, and an end of the rotating rod 1 away from the pressure plate 1 is rotatably connected to the outer wall of the fixed rod 2; When the sliding rod moves toward the fixing frame, the angles of the rotating rods 1 at both ends are reduced, thereby driving the pressure plates 1 at both ends to move toward the supporting plate.

[0011] Preferably, the pressure assembly includes a second rotating rod rotatably connected to the bottom of the second pressure plate, and an end of the second rotating rod away from the second pressure plate is rotatably connected to the inner wall of the first fixed rod; Among them, when the fixed rod and sliding rod move toward one end of the fixed frame, the fixed rod will force the angle between the pressure plates 2 at both ends to expand, so that the pressure plate 2 drives the push plate 2 to squeeze the rubber sleeve through the spring telescopic rod 2 to generate supporting force.

[0012] Preferably, the limiting assembly includes an arc-shaped block fixedly connected to the outer wall of the fixing plate; When the rolling column contacts the outer wall of the arc block, the rolling column will drive the sliding block to move upward along the inner wall of the fixed tube.

[0013] Preferably, the pressure assembly includes a spring 1 fixedly connected to the bottom of the sliding block, and an end of the spring 1 away from the sliding block is fixedly connected to the outer wall of the sliding rod; Among them, when the sliding block moves upward along the inner wall of the fixed tube, spring 1 will deform and accumulate potential energy, forcing the rolling column to pass the highest position of the arc block. Then, spring 1 will release the potential energy, forcing the rolling column to roll rapidly along the inclined surface of the arc block, and at the same time, drive the sliding rod to move rapidly.

[0014] The present invention has the following beneficial effects: (1) The present invention addresses the problem that conventional expansion devices have a large contact area with the cavity and many blind spots for observation. The device is simplified. When the patient bites the device, one of the buffer components or the pressure components will generate an outward thrust, forcing the rubber sleeve and the contact pattern to generate an outward thrust, providing an outward support force for the patient's upper and lower jaws, limiting the closure of the patient's mouth. Through the application of the above components, the support area of ​​the device is reduced while the operating space of the medical staff is expanded, reducing the restrictions of the device on the medical staff.

[0015] (2) The present invention utilizes the characteristics of the rubber sleeve contacting the patient's teeth, and a buffer component and a pressure component are provided inside the device. When the patient has gum discomfort, he can bite the outer wall of the rubber sleeve with force. As the patient continues to apply pressure, the fixed ring will drive the rolling column to completely cross the highest position of the arc block. At this time, the rolling column is pulled by the spring 1, forcing the sliding rod to move quickly, and the fixed rod 1 also moves synchronously at this time, and through the rotating rod 2 and the extrusion pressure plate 2 and the push plate 2, the rubber sleeve on the outer wall of the push plate 2 quickly supports other rear pressure groove positions. The buffer component is reduced in angle between the rotating rod 1 due to the movement of the sliding rod. When the sliding rod moves quickly, the push plate 2 will drive the rubber sleeve away from the teeth. Through the application of the above components, it is ensured that the device can change the pressure position of the teeth and the device according to the patient's own needs, avoiding long-term contact between a part of the teeth and the device, causing gum discomfort.

[0016] (3) The present invention utilizes the above-mentioned device to change the distance between the outer push plate 1 and the pressure plate 1 when deformation occurs. A spring telescopic rod 2 is provided inside the device. When the sliding rod moves rapidly, the pressure plate 2 or the pressure plate 1 will move upward rapidly. When the pressure plate 2 moves upward rapidly, the extended spring telescopic rod 2 will drive the outer push plate 2 to move upward synchronously. When the outer push plate 2 is blocked by the teeth and no longer moves, the upward pressure of the pressure plate 2 will be transmitted to the spring telescopic rod 2, and the spring telescopic rod 2 will absorb part of the potential energy of the rapid upward movement of the pressure plate 2. Through the application of the above-mentioned components, it is ensured that when the device changes the force position, the spring telescopic rod 1 or the spring telescopic rod 2 can effectively relieve the contact speed between the pressure plate 2 and the outer push plate 2, reduce the pressure of the pressure plate 2 impacting the outer push plate 2, and avoid the teeth being subjected to excessive impact force due to the rapid internal replacement when the device changes the force position, causing the patient to have toothache. (4) The present invention adopts a fully enclosed design. After the device completes the test, even if saliva is sticky during the test, due to the fully enclosed design, the saliva can only remain on the outer surface of the device, and there are no small gaps on the outer wall of the device. Saliva will not accumulate and cause bacteria to breed, which reduces the difficulty of cleaning the device. Before need, the outer wall of the device can be cleaned to continue testing for subsequent patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2It is a front view schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the back of the overall structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the fixing assembly of the present invention; Figure 5 A schematic diagram of the buffer assembly of the present invention is shown; Figure 6 This is a schematic diagram of the working state of the pressure component of the present invention; Figure 7 This is a schematic diagram of the limiting components of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of point A in the middle.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows: In the figure: 1. External support mechanism; 11. Contact assembly; 12. Fixed assembly; 13. Grip; 14. Fixed frame; 111. Rubber sleeve; 112. Fixed ring; 113. Contact pattern; 121. Support plate; 122. Sliding rod; 123. Fixed rod one; 124. Fixed rod two; 2. Pushing mechanism; 21. Buffer assembly; 22. Pressure assembly; 211. Push plate one; 212. Spring telescopic rod one; 213. Pressure plate one; 214. Rotating rod one; 221. Push plate two; 222. Spring telescopic rod two; 223. Pressure plate two; 224. Rotating rod two; 3. Swinging mechanism; 31. Limiting assembly; 32. Pressure assembly; 311. Fixed plate; 312. Arc block; 321. Fixed tube; 322. Partition; 323. Sliding block; 324. Rolling column; 325. Spring one. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] For example 1, please refer to Figure 1-Figure 7 The present invention is an oral expansion device for oral examination, comprising a handle 13, a fixing frame 14 being fixedly connected to the side wall of the handle 13; The external support mechanism 1 is fixedly connected to the side wall of the fixing frame 14. When the device is inserted into the patient's posterior molar position, the external support mechanism 1 will force the patient's upper and lower jaws to separate; The pushing mechanism 2 is slidably connected to the outer wall of the external support mechanism 1 and is used to provide an outward pushing force for the external support mechanism 1; The swing mechanism 3 is fixedly connected to the outer wall of the pushing mechanism 2. When the pushing mechanism 2 is deformed, the swing mechanism 3 will force the pushing mechanism 2 to deform faster. Before use, the staff holds the handle 13 and inserts the device into the patient's posterior molar position, and ensures that the patient's upper and lower jaws can be clamped slightly.

[0022] The external support mechanism 1 includes: The contact assembly 11 is fixedly connected to the side wall of the fixing frame 14 through a support member; The support member includes a fixing ring 112 fixedly connected to the side wall of the fixing frame 14, and a rubber sleeve 111 is fixedly connected to the outer wall of the fixing ring 112; The fixing assembly 12 is fixedly connected to the inner wall of the fixing ring 112 through a positioning member; The positioning member includes a support plate 121 fixedly connected to the inner wall of the fixing ring 112, and a sliding rod 122 is slidably connected inside the through hole groove of the support plate 121; The sliding rod 122 can slide along the inner wall of the support plate 121, thereby forcing the pushing mechanism 2 to deform; In order to solve the problem that conventional expansion devices have a large contact area with the cavity and many blind spots for observation, the device is simplified. When the patient bites the device, one of the buffer components 21 or the pressure component 22 will generate an outward thrust, forcing the rubber sleeve 111 to generate an outward thrust, providing an outward support force for the patient's upper and lower jaws, limiting the closure of the patient's mouth. Through the application of the above components, the support area of ​​the device is reduced while the operating space of the medical staff is expanded, reducing the restrictions of the device on the medical staff.

[0023] The driving mechanism 2 includes: The buffer assembly 21 is fixedly connected to the inner wall of the rubber sleeve 111 through a pushing piece; The pushing member includes two outer push plates 211 fixedly connected to the inner wall of the rubber sleeve 111, a spring telescopic rod 212 fixedly connected to the outer wall of the outer push plate 211, and a pressure plate 213 fixedly connected to the end of the spring telescopic rod 212 away from the outer push plate 211; The pressure-bearing component 22 is fixedly connected to the inner wall of the rubber sleeve 111 through an auxiliary component; The auxiliary component includes a second outer push plate 221 fixedly connected to the inner wall of the rubber sleeve 111, a second spring telescopic rod 222 fixedly connected to the outer wall of the second outer push plate 221, and a second pressure plate 223 fixedly connected to the end of the second spring telescopic rod 222 away from the second outer push plate 221; When the sliding rod 122 slides, the buffer component 21 and the pressure component 22 are forced to produce different deformations, so that the contact position between the device and the tooth socket is changed.

[0024] The swing mechanism 3 includes: The limiting assembly 31 is fixedly connected to the outer wall of the support plate 121 through a rotating member; The rotating member includes a fixing plate 311 fixedly connected to the outer wall of the support plate 121; The pressure assembly 32 is fixedly connected to the outer wall of the sliding rod 122 through a telescopic member; The telescopic member includes a fixed tube 321 fixedly connected to the outer wall of the sliding rod 122, a partition 322 fixedly connected to the top of the fixed tube 321, a sliding block 323 slidably connected to the inner wall of the partition 322, and a rolling column 324 rotatably connected to the inner wall of the through hole of the sliding block 323; When the sliding rod 122 slides, the sliding rod 122 drives the sliding block 323 and the rolling column 324 to move synchronously.

[0025] For example 2, please refer to Figure 4-Figure 8 The present invention is an oral expansion device for oral examination. Based on Example 1, the contact component 11 includes a contact pattern 113 fixedly connected to the outer wall of the rubber sleeve 111; When the device is inserted into the posterior molar position, the contact pattern 113 will contact the tooth groove of the posterior molar, thereby increasing the friction between the device and the tooth; The fully enclosed design allows the device to remain on the outer surface of the device even if saliva is sticky after the test. The device has no small gaps on its outer wall, so saliva will not accumulate and cause bacteria to breed, reducing the difficulty of cleaning the device. When needed, the outer wall of the device can be cleaned to continue testing subsequent patients.

[0026] The fixing assembly 12 includes a fixing rod 123 fixedly connected to the top of the sliding rod 122, and a fixing rod 2 124 fixedly connected to the end of the sliding rod 122 away from the fixing rod 123; When the sliding rod 122 moves, the first fixing rod 123 and the second fixing rod 124 will also move.

[0027] The buffer assembly 21 includes a rotating rod 214 rotatably connected to the bottom of the pressure plate 213, and an end of the rotating rod 214 away from the pressure plate 213 is rotatably connected to the outer wall of the fixed rod 2 124; When the sliding rod 122 moves toward the fixing frame 14, the angles of the rotating rods 214 at both ends are reduced, which drives the pressure plates 213 at both ends to move toward the support plate 121. Taking advantage of the fact that the rubber sleeve 111 contacts the patient's teeth, a buffer component 21 and a pressure component 22 are provided inside the device. Figure 5 As shown, at this time, the buffer component 21 forms an outward supporting state, and the pressure component 22 is in a contracted state. If the teeth are in contact with the device for a long time, the gums will be under high pressure for a long time, which will cause gum discomfort. Therefore, when the patient has gum discomfort, the outer wall of the rubber sleeve 111 can be bitten hard. At this time, the device will be subjected to an extrusion force, and the extrusion force will be transmitted to the pressure plate 1 213 through the outward push plate 1 211. After the two pressure plates 1 213 are compressed, the angle between the two rotating rods 1 214 will be forced to decrease. At this time, the rotating rod 1 214 will drive the sliding rod 122 to move along the inner wall of the through hole of the support plate 121, and the sliding rod 122 will drive the fixed rod 123 to move synchronously.

[0028] The pressure assembly 22 includes a second rotating rod 224 rotatably connected to the bottom of the second pressure plate 223 , and an end of the second rotating rod 224 away from the second pressure plate 223 is rotatably connected to the inner wall of the first fixed rod 123 ; When the fixed rod 123 and the sliding rod 122 move toward one end of the fixed frame 14, the fixed rod 123 will force the angle between the pressure plates 223 at both ends to expand, so that the pressure plates 223 drive the outer push plates 221 to squeeze the rubber sleeve 111 through the spring telescopic rod 222 to generate a supporting force. When the above device is used, the distance between the outer push plate 1 211 and the pressure plate 1 213 will change when deformation occurs. Through the application of the above components, a spring telescopic rod 222 is provided inside the device. When the sliding rod 122 moves quickly, the pressure plate 223 or the pressure plate 1 213 will move up quickly. When the pressure plate 223 moves up quickly, the extended spring telescopic rod 222 will drive the outer push plate 221 to move upward synchronously. When the outer push plate 221 is blocked by the teeth and no longer moves, the pressure plate 223 moves up. The pressure will be transmitted to the spring telescopic rod 222, and the spring telescopic rod 222 will absorb part of the potential energy of the rapid upward movement of the pressure plate 223. Through the application of the above components, it is ensured that when the device changes the force position, the spring telescopic rod 1 212 or the spring telescopic rod 2 222 can effectively reduce the contact speed between the pressure plate 2 223 and the push plate 2 221, reduce the pressure of the pressure plate 2 223 impacting the push plate 2 221, and avoid the device changing the pressure position due to the rapid internal replacement, resulting in the teeth having to bear excessive impact force and causing toothache in the patient.

[0029] The limiting assembly 31 includes an arc-shaped block 312 fixedly connected to the outer wall of the fixing plate 311; When the rolling post 324 contacts the outer wall of the arc block 312 , the rolling post 324 drives the sliding block 323 to move upward along the inner wall of the fixed tube 321 . As the patient continues to apply pressure, the fixed ring 112 will drive the rolling column 324 to completely pass the highest position of the arc block 312. At this time, the rolling column 324 is pulled by the spring 1 325 to force the sliding rod 122 to move quickly, and the fixed rod 123 also moves synchronously at this time, and through the rotating rod 224 and the extrusion pressure plate 223 and the outer push plate 221, the rubber sleeve 111 on the outer wall of the outer push plate 221 quickly supports other rear pressure groove positions, and the buffer component 21 is reduced in angle between the rotating rod 1 214 due to the movement of the sliding rod 122. When the sliding rod 122 moves quickly, the outer push plate 2 221 will drive the rubber sleeve 111 away from the teeth. Through the application of the above components, the device can be guaranteed to change the pressure position of the teeth and the device according to the patient's own needs, avoiding long-term contact between some of the teeth and the device, causing discomfort to the gums.

[0030] The pressure assembly 32 includes a spring 1 325 fixedly connected to the bottom of the sliding block 323, and one end of the spring 1 325 away from the sliding block 323 is fixedly connected to the outer wall of the sliding rod 122; When the sliding block 323 moves upward along the inner wall of the fixed tube 321, the spring 1 325 deforms and accumulates potential energy, forcing the rolling post 324 to pass the highest position of the arc block 312. Then, the spring 1 325 releases the potential energy, forcing the rolling post 324 to roll rapidly along the inclined surface of the arc block 312, thereby driving the sliding rod 122 to move rapidly. The sliding rod 122 will drive the sliding block 323 and the rolling column 324 to contact the outer wall of the arc block 312. At this time, the rolling column 324 is affected by the arc outer wall of the arc block 312 and will drive the sliding block 323 to move upward along the inner wall of the fixed tube 321. At the same time, the spring 1 325 will be compressed to produce deformation and accumulate potential energy. When the rolling column 324 reaches the highest position, the fixed rod 123 will force the angle between the two rotating rods 224 to expand, and the rotating rod 224 pushes the rubber sleeve 111 close to the outer wall of the tooth through the pressure plate 223 and the outer push plate 221, but does not touch it.

[0031] A specific application of this embodiment is as follows: before use, the outer surface of the device is first disinfected with alcohol. Then, the medical staff holds the handle 13 and inserts the rubber sleeve 111 to the position of the patient's back molars. After ensuring that the patient can bite the device slightly, the patient's cavity is expanded. To address the problem that conventional expansion devices have a large contact area with the cavity and many blind spots for observation, the device has been simplified. When the patient bites the device, one of the buffer component 21 or the pressure component 22 will generate an outward thrust, forcing the rubber sleeve 111 and the contact pattern 113 to generate an outward thrust, providing an outward support force for the patient's upper and lower jaws, limiting the closure of the patient's mouth. Through the use of these components, the device's support area is reduced, the medical staff's operating space is expanded, and the device's restrictions on medical staff are reduced. Taking advantage of the fact that the rubber sleeve 111 contacts the patient's teeth, a buffer component 21 and a pressure component 22 are provided inside the device. Figure 5 As shown, at this time, the buffer component 21 forms an outward supporting state, and the pressure component 22 is in a contracted state. If the teeth are in contact with the device for a long time, the gums will be subjected to high pressure for a long time, which will cause gum discomfort. Therefore, when the patient has gum discomfort, he can bite the outer wall of the rubber sleeve 111 hard. At this time, the device will be subjected to an extrusion force, and the extrusion force will be transmitted to the pressure plate 1 213 through the outward push plate 1 211. After the two pressure plates 1 213 are compressed, the angle between the two rotating rods 1 214 will be forced to decrease. At this time, the rotating rods 1 The movable rod 1214 will drive the sliding rod 122 to move along the inner wall of the through hole of the support plate 121, and the sliding rod 122 will drive the fixed rod 123 to move synchronously. In this process, the sliding rod 122 will drive the sliding block 323 and the rolling column 324 to contact the outer wall of the arc block 312. At this time, the rolling column 324 is affected by the arc outer wall of the arc block 312, and will drive the sliding block 323 to move upward along the inner wall of the fixed tube 321. At the same time, the spring 1 325 will be compressed to produce deformation and accumulate potential energy. When the rolling column 324 reaches the highest position When the patient is in the tooth position, the fixed rod 123 will force the angle between the two rotating rods 224 to expand, and the rotating rod 224 pushes the rubber sleeve 111 close to the outer wall of the tooth through the pressure plate 223 and the outer push plate 221, but does not touch it; and as the patient continues to apply pressure, the fixed ring 112 will drive the rolling column 324 to completely cross the highest position of the arc block 312. At this time, the rolling column 324 is pulled by the spring 1 325 to force the sliding rod 122 to move quickly, and the fixed rod 123 also moves synchronously, and through the rotating rod 224 and the squeezing plate 2 The pressure plate 223 and the outer push plate 221 are pressed, so that the rubber sleeve 111 on the outer wall of the outer push plate 221 quickly supports other rear pressure groove positions, and the buffer component 21 is reduced because of the movement of the sliding rod 122. At this time, the angle between the rotating rod 1 214 is reduced. When the sliding rod 122 moves quickly, the outer push plate 221 will drive the rubber sleeve 111 away from the teeth. Through the application of the above components, it is ensured that the device can change the pressure position of the teeth and the device according to the patient's own needs, avoiding long-term contact between a part of the teeth and the device, causing discomfort to the gums.

[0032] When the above device is used, the distance between the outer push plate 1 211 and the pressure plate 1 213 will change when deformation occurs. Through the application of the above components, a spring telescopic rod 222 is provided inside the device. When the sliding rod 122 moves quickly, the pressure plate 223 or the pressure plate 1 213 will move up quickly. When the pressure plate 223 moves up quickly, the extended spring telescopic rod 222 will drive the outer push plate 221 to move upward synchronously. When the outer push plate 221 is blocked by the teeth and no longer moves, the pressure plate 223 moves up. The pressure will be transmitted to the second spring telescopic rod 222, and the second spring telescopic rod 222 will absorb part of the potential energy of the rapid upward movement of the second pressure plate 223. Through the application of the above components, when the device changes the force-bearing position, the first spring telescopic rod 212 or the second spring telescopic rod 222 can effectively reduce the contact speed between the second pressure plate 223 and the second external push plate 221, reducing the pressure of the second pressure plate 223 impacting the second external push plate 221, and avoiding the rapid internal replacement when the device changes the pressure position, resulting in excessive impact force on the teeth and causing toothache in the patient; The fully enclosed design allows the device to remain on the outer surface of the device even if saliva is sticky after the test. The device has no small gaps on its outer wall, so saliva will not accumulate and cause bacteria to breed, reducing the difficulty of cleaning the device. When needed, the outer wall of the device can be cleaned to continue testing subsequent patients.

[0033] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An oral cavity expansion device for oral examination, comprising a handle (13), wherein a fixing frame (14) is fixedly connected to the side wall of the handle (13), characterized in that: Also includes: An external support mechanism (1), wherein the external support mechanism (1) is fixedly connected to the side wall of the fixing frame (14), and when the device is inserted into the patient's posterior molar position, the external support mechanism (1) will force the patient's upper and lower jaws to separate; A pushing mechanism (2), wherein the pushing mechanism (2) is slidably connected to the outer wall of the external support mechanism (1) and is used to provide an outward pushing force for the external support mechanism (1); A swing mechanism (3), wherein the swing mechanism (3) is fixedly connected to the outer wall of the pushing mechanism (2), and when the pushing mechanism (2) is deformed, the swing mechanism (3) forces the pushing mechanism (2) to deform faster; Before use, the staff holds the handle (13) and inserts the device into the patient's posterior molar position, and ensures that the patient's upper and lower jaws can be slightly clamped.

2. The oral cavity expansion device for oral examination according to claim 1, characterized in that: The external support mechanism (1) comprises: A contact assembly (11), wherein the contact assembly (11) is fixedly connected to a side wall of the fixing frame (14) via a support member; The support member comprises a fixing ring (112) fixedly connected to the side wall of the fixing frame (14), and a rubber sleeve (111) is fixedly connected to the outer wall of the fixing ring (112); A fixing assembly (12), wherein the fixing assembly (12) is fixedly connected to the inner wall of the fixing ring (112) via a positioning member; The positioning member comprises a support plate (121) fixedly connected to the inner wall of the fixing ring (112), and a sliding rod (122) is slidably connected inside the through-hole groove of the support plate (121); The sliding rod (122) can slide along the inner wall of the support plate (121), thereby forcing the pushing mechanism (2) to deform.

3. The oral cavity expansion device for oral examination according to claim 2, characterized in that: The pushing mechanism (2) comprises: A buffer assembly (21), wherein the buffer assembly (21) is fixedly connected to the inner wall of the rubber sleeve (111) via a pushing piece; The pushing member includes two outer push plates (211) fixedly connected to the inner wall of the rubber sleeve (111), a spring telescopic rod (212) fixedly connected to the outer wall of the outer push plate (211), and a pressure plate (213) fixedly connected to one end of the spring telescopic rod (212) away from the outer push plate (211); A pressure-bearing component (22), wherein the pressure-bearing component (22) is fixedly connected to the inner wall of the rubber sleeve (111) via an auxiliary component; The auxiliary component includes a second outer push plate (221) fixedly connected to the inner wall of the rubber sleeve (111), a second spring telescopic rod (222) fixedly connected to the outer wall of the second outer push plate (221), and a second pressure plate (223) fixedly connected to one end of the second spring telescopic rod (222) away from the second outer push plate (221); When the sliding rod (122) slides, the buffer component (21) and the pressure component (22) are forced to produce different deformations, so that the contact position between the device and the tooth socket is changed.

4. The oral cavity expansion device for oral examination according to claim 3, characterized in that: The swing mechanism (3) comprises: A limiting assembly (31), wherein the limiting assembly (31) is fixedly connected to the outer wall of the support plate (121) via a rotating member; The rotating member comprises a fixing plate (311) fixedly connected to the outer wall of the supporting plate (121); A pressure assembly (32), wherein the pressure assembly (32) is fixedly connected to the outer wall of the sliding rod (122) via a telescopic member; The telescopic member comprises a fixed tube (321) fixedly connected to the outer wall of the sliding rod (122); a partition (322) is fixedly connected to the top of the fixed tube (321); a sliding block (323) is slidably connected to the inner wall of the partition (322); and a rolling column (324) is rotatably connected to the inner wall of the through hole of the sliding block (323); When the sliding rod (122) slides, the sliding rod (122) drives the sliding block (323) and the rolling column (324) to move synchronously.

5. The oral cavity expansion device for oral examination according to claim 4, characterized in that: The contact assembly (11) includes a contact pattern (113) fixedly connected to the outer wall of the rubber sleeve (111); When the device is inserted into the posterior molar position, the contact pattern (113) will contact the tooth groove of the posterior molar, thereby increasing the friction between the device and the tooth.

6. The oral cavity expansion device for oral examination according to claim 5, characterized in that: The fixing assembly (12) includes a fixing rod 1 (123) fixedly connected to the top of the sliding rod (122), and an end of the sliding rod (122) away from the fixing rod 1 (123) is fixedly connected to a fixing rod 2 (124); When the sliding rod (122) moves, it will drive the fixed rod 1 (123) and the fixed rod 2 (124) to move.

7. The oral cavity expansion device for oral examination according to claim 6, characterized in that: The buffer assembly (21) includes a rotating rod (214) rotatably connected to the bottom of the pressure plate (213), and an end of the rotating rod (214) away from the pressure plate (213) is rotatably connected to the outer wall of the fixed rod (124); When the sliding rod (122) moves toward the fixing frame (14), the angles of the rotating rods (214) at both ends are reduced, thereby driving the pressure plates (213) at both ends to move toward the support plate (121).

8. The oral cavity expansion device for oral examination according to claim 7, characterized in that: The pressure component (22) includes a second rotating rod (224) rotatably connected to the bottom of the second pressure plate (223), and an end of the second rotating rod (224) away from the second pressure plate (223) is rotatably connected to the inner wall of the first fixed rod (123); When the fixed rod 1 (123) and the sliding rod (122) move toward one end of the fixed frame (14), the fixed rod 1 (123) will force the angle between the pressure plates 2 (223) at both ends to expand, so that the pressure plate 2 (223) drives the push plate 2 (221) to squeeze the rubber sleeve (111) through the spring telescopic rod 2 (222) to generate a supporting force.

9. The oral cavity expansion device for oral examination according to claim 8, characterized in that: The limiting assembly (31) includes an arc-shaped block (312) fixedly connected to the outer wall of the fixing plate (311); When the rolling column (324) contacts the outer wall of the arc block (312), the rolling column (324) drives the sliding block (323) to move upward along the inner wall of the fixed tube (321).

10. The oral cavity expansion device for oral examination according to claim 9, characterized in that: The pressure assembly (32) includes a spring 1 (325) fixedly connected to the bottom of the sliding block (323), and an end of the spring 1 (325) away from the sliding block (323) is fixedly connected to the outer wall of the sliding rod (122); When the sliding block (323) moves upward along the inner wall of the fixed tube (321), the spring 1 (325) will be deformed and accumulate potential energy, forcing the rolling column (324) to pass the highest position of the arc block (312). Then, the spring 1 (325) will release the potential energy, forcing the rolling column (324) to roll rapidly along the inclined surface of the arc block (312), and at the same time, drive the sliding rod (122) to move rapidly.

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