A multi-functional detachable mouth opener for orthodontics

Abstract

The present invention relates to the technical field of mouth openers, and particularly to a multi-functional detachable mouth opener for orthodontics. At the middle of the top and bottom ends of the base body, there are articulated swing arms. At the end of the swing arm, there is an articulated suspension. At a position outside the suspension at the end of the swing arm, there is an articulated clamping arm. On one side end face of the base body, there is a shaft tube embedded and slidably installed. Inside the base body, there is a piston slidably installed. In the middle of the other side end face of the base body, there is a pilot valve embedded and installed. The present invention enables doctors to more intuitively feel and control the supporting force on the patient's oral cavity, can assist doctors in more precisely regulating the outward expansion force, while ensuring the reliability of support and avoiding muscle strain around the oral cavity, improving the comfort of patients, making the support work more gentle, making the force on the patient's mouth more balanced, greatly improving the fit between the mouth opener and the patient's oral cavity, taking into account the different needs of patients' oral cavity sizes and shapes, and making the support work of the mouth opener more efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of mouth openers, and specifically to a multifunctional detachable mouth opener for orthodontics. Background Technique

[0002] A mouth opener, also known as a mouth gag, can ensure that the patient's mouth remains open, expanding the oral cavity space to facilitate various oral medical operations for doctors. The Chinese patent discloses an adjustable orthodontic mouth opener with the application number: 202322497536.6. This device can adjust the size of the mouth opener to adapt to patients with different oral sizes. At the same time, an auxiliary lighting device is added, which brings great convenience to medical staff;

[0003] However, the current mouth openers not only have a single size and expansion method, unable to effectively fit the individual differences in the oral cavity size of patients, but also most of the expansion size and support strength are non-adjustable and have a rigid and inflexible adjustment. The doctor's adjustment work of the expansion size and support strength lacks intuitiveness and accuracy. It not only lacks comfort for patients, but also easily causes muscle strains around the oral cavity. The support work is not reliable enough. At the same time, it cannot be used for later rehabilitation training, and has a small scope of adaptation. Summary of the Invention

[0004] The present invention provides a multifunctional detachable mouth opener for orthodontics, which can effectively solve the problems of the current mouth openers mentioned in the above background technology, such as having a single size and expansion method, unable to effectively fit the individual differences in the oral cavity size of patients, most of the expansion size and support strength being non-adjustable and having a rigid and inflexible adjustment, the doctor's adjustment work of the expansion size and support strength lacking intuitiveness and accuracy, lacking comfort for patients, easily causing muscle strains around the oral cavity, the support work not being reliable enough, and at the same time being unable to be used for later rehabilitation training and having a small scope of adaptation.

[0005] To achieve the above object, the present invention provides the following technical solution: A multifunctional detachable mouth opener for orthodontics, including a base body, wherein both the middle parts of the top and bottom ends of the base body are hinged with rotating arms, the end parts of the rotating arms are hinged with suspensions, the end parts of the rotating arms are hinged with pliers arms at positions outside the suspensions, and a synchronous expansion mechanism is installed on the end face of the suspension;

[0006] The synchronous expansion mechanism includes a shaft tube;

[0007] On one end face of the base body, a shaft tube is embedded and slidably installed. Inside the base body, a piston is slidably installed. In the middle of the other end face of the base body, a pilot valve is embedded and installed. On one side of the top end of the base body, a pressure gauge is embedded and installed. At the end of the shaft tube, a conduit is installed. At one end of the pliers arm, a plug is embedded and slidably installed. Inside the pliers arm, an air chamber is provided at the position corresponding to the plug. In the middle of the side end face of the plug, a finger pressure head is installed. At the position near the plug on the side end face of the air chamber, a plugging block is embedded and slidably installed. At the end of the plugging block, a spring is installed.

[0008] On the top end of the base body, a sliding cylinder is embedded and installed. At both ends of the sliding cylinder, straight tubes are embedded and slidably installed. At the position of the end of the straight tube inside the sliding cylinder, a plug ring is installed. On the middle of the side end faces of the sliding cylinder and the piston, guide holes are provided. At the other end of the straight tube, a strip box is installed. At the other side of the bottom end of the strip box, an insertion tube is installed by means of a thread. At the end of the insertion tube, a flared seat is rotatably installed.

[0009] On both sides of one of the flared seats, top boxes are installed. On both sides of the other flared seat, bottom boxes are installed. Inside the top boxes and the bottom boxes, ring plugs are slidably installed. At the end of the ring plug, a transverse tube is installed. On one side of the bottom end of the top box, a vertical tube is installed. On one side of the top end of the bottom box, a cylinder body is installed. At the position of the end of the vertical tube inside the cylinder body, a sealing ring is installed.

[0010] Preferably, the pilot valve is a check valve. The air chamber is communicated with the shaft tube through the conduit. Both the shaft tube and the sliding cylinder are communicated with the inner cavity of the base body through the guide holes. The longitudinal section of the plugging block is in the shape of a capital "I". The original length of the spring is greater than the thickness of the air chamber.

[0011] Preferably, at the corner of the arc part of the top box, a gill plate is installed, and the arc parts of the top box and the bottom box and the gill plate all fit the arc of the human oral cavity.

[0012] Preferably, both the top box and the bottom box are hermetically and slidably connected with the transverse tube, and the end of the transverse tube is connected with the flared seat by means of a thread.

[0013] Preferably, clean air is filled at the position outside the transverse tube inside the top box and the bottom box and at the position outside the vertical tube inside the cylinder body.

[0014] Preferably, the sealing ring is slidably connected with the cylinder body, and the cylinder body fits the sealing ring. The slidable distance of the sealing ring is the same as the slidable distance of the plug ring.

[0015] Preferably, a valve housing is installed at a position on the outer curved surface of the horizontal pipe near the flaring seat. A driving bolt is embedded and installed at the top of the outer curved surface of the valve housing through a thread. A plug disc is installed at the end of the driving bolt. A column cavity is formed at a position corresponding to the plug disc inside the horizontal pipe. A plurality of side holes are formed at equal angular intervals along the circumferential direction at a position where the outer curved surface of the horizontal pipe is located inside the flaring seat. A flow-stop plate is symmetrically and slidably installed inside the flaring seat. A compression spring is installed in the middle of the side end face of the flow-stop plate. A plurality of grooves are formed at equal angular intervals along the circumferential direction on the outer curved surface of the flow-stop plate.

[0016] A strip board is slidably installed inside the strip box. A thimble is installed at the end face of the strip board corresponding to the inserting pipe. A flower board is slidably installed inside the inserting pipe. A plurality of convex blocks are installed at equal angular intervals along the circumferential direction at the end of the inserting pipe. A lead screw is installed through a thread at a position on the end face of the flaring seat close to one side of the base body. A toothed plate is installed at the end of the lead screw. A clamping pipe is embedded and clamped in the middle of the top of one of the toothed plates.

[0017] One end of the clamping pipe is installed with a negative pressure ball. The other end of the negative pressure ball is installed with a squeezing ball. Check valves are installed at both ends of the squeezing ball corresponding to the clamping pipe. Connecting pipes are installed on both sides at the top of the top box, both sides at the bottom of the bottom box and both sides of the outer curved surface of the cylinder body. A flat box is installed at the end of the connecting pipe. A sealing bolt is embedded and installed through a thread at a position on the end face of the flat box corresponding to the connecting pipe.

[0018] Preferably, the original length of the compression spring is greater than twice the slidable distance of the flow-stop plate. The minimum distance between the flow-stop plate and the end face of the flaring seat is less than the distance between the valve housing and the side hole. The distance between the strip board and the bottom end of the strip box is less than the length of the inserting pipe. The minimum distance between the flower board and the end of the inserting pipe is less than the length of the thimble. An air valve is embedded and installed at a position on the end face of the strip box far from one side of the length of the inserting pipe. Clean air is filled at a position between the air valve and the strip board inside the strip box.

[0019] Preferably, a tooth pad is embedded and bonded to the end face of the toothed plate. The cross-section of the tooth pad fits the arc of the human oral teeth. The check valves at both ends of the squeezing ball are an inlet liquid one-way valve and an outlet liquid one-way valve respectively. And the squeezing ball is connected to the clamping pipe through the inlet liquid one-way valve. The negative pressure ball is of a hollow net structure.

[0020] Preferably, the spaces on both sides of the ring plug in the inner cavities of the top box and the bottom box are communicated through the connecting pipe and the flat box. The spaces on both sides of the sealing ring in the inner cavity of the cylinder body are communicated through the connecting pipe and the flat box. The length of the sealing bolt is greater than the thickness of the flat box. And the end of the sealing bolt fits the connecting pipe.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is scientific and reasonable, and it is safe and convenient to use.

[0022] 1. An empathy expansion mechanism is provided. Through the cooperation of a shaft tube, a piston, a pilot valve, a plug, and a spring, a pneumatic control structure can be constructed. It can more efficiently and stably utilize the driving force provided by a swing arm, a suspension, and a clamping arm to achieve stepless adjustment, greatly improving the convenience and flexibility of adjusting the outer expansion size and force of the flaring tool. Coupled with the synchronous sensing effect of a catheter, a plug block, an air chamber, and a finger pressure head, doctors can more intuitively feel and control the supporting force on the patient's oral cavity, significantly enhancing the convenience, intuitiveness, stability, and reliability of the control of the supporting force on the patient's oral cavity;

[0023] With the air pressure reading function of an air pressure gauge, it can assist doctors in more accurately controlling the outer expansion force. While ensuring the reliability of support and avoiding muscle strain around the oral cavity, it can improve patient comfort, enhance the compatibility with different patients, meet different support requirements, and at the same time change the direct rigid support method of the pliers-type mouth opener, providing support to the patient's oral cavity in an elastic outer expansion manner. This not only increases the outer expansion adjustment range of the mouth opener but also makes the support work more gentle, making the force on the patient's oral cavity more balanced, significantly enhancing the support effect and the controllability of the mouth opener, and can also take into account the later rehabilitation training, meeting the different force requirements during the passive stretching training process and the active strength training process, making the force control work more convenient and efficient.

[0024] 2. Through the cooperation of an intubation tube, a flaring seat, a top box, a bottom box, a ring plug, a horizontal tube, a vertical tube, a cylinder, and a sealing ring, a two-way outer expansion structure can be constructed, improving the controllability of the outer expansion method of the mouth opener. On the one hand, while ensuring the stability of support, it can further make the outer expansion method of the mouth opener more compatible with the patient's mouth shape, significantly enhancing the compatibility between the mouth opener and the patient's oral cavity, taking into account the different requirements of the oral cavity sizes and shapes of different patients, making the support work of the mouth opener more flexible and efficient, and more user-friendly;

[0025] On the other hand, it can cooperate with a sliding cylinder, a plug ring, a guide hole, a straight tube, and a strip box to form a double elastic support structure, which can further ensure the reliability of the outer expansion force of the mouth opener and the sensitivity of the outer expansion action, and can adjust the angles of the swing arm, the suspension, and the clamping arm without affecting the supporting force, effectively improving the observation and diagnosis perspective and expanding the hand operation space, making the doctor's diagnosis and treatment work more convenient.

[0026] 3. A segmented splicing mechanism is provided. Through the cooperation of the valve housing, drive bolt, plug disc, column cavity, side hole, flow-stop plate, compression spring and groove, an elastic connection structure and a rigid locking structure can be constructed. Coupled with the flow-limiting effect of the strip board, thimble, flower board and convex block, a dynamic connection between the strip box, top box, bottom box and flared seat can be achieved. The mouth opener can be flexibly assembled according to actual needs. While ensuring the integrity of the mouth opener support, the relative independence of components can be fully retained, and the different disease condition requirements of different patients can be flexibly met. The independent and comprehensive support for the lips, cheeks and teeth can be flexibly realized. This not only improves the flexibility of the mouth opening operation of the mouth opener, enabling patients and doctors to more efficiently and quickly carry out the mouth opening work, making the diagnosis and treatment work and rehabilitation training work more convenient and reliable, but also makes the disassembly, replacement and cleaning work of the inlet part of the mouth opener more reliable, effectively improving medical hygiene.

[0027] Coupled with the linkage effect of the lead screw, toothed plate, clamping tube, negative pressure ball, squeezing ball and check valve, a tooth support structure and a saliva cleaning structure can be formed, further enriching the functionality of the mouth opener, integrating mouth support and saliva cleaning, making the doctor's diagnosis and treatment work more stable and reliable. Through the cooperation of the connecting pipe, flat box and sealing bolt, a flow-limiting and guiding structure can be constructed, which can finely adjust and correct the initial state of the mouth opener, greatly improving the matching degree of the initial size of the mouth opener with different patients, and enabling the support work of the mouth opener to be carried out more smoothly.

[0028] In summary, this mouth opener can achieve stepless adjustment of the support strength and opening size, and achieve two-way adjustment of the outward expansion method. While ensuring the support stability, it can greatly improve the comfort of the support. While improving the comfort of patients, it can make the mouth opener more compatible with the mouth sizes of different patients, and enable doctors to more intuitively, efficiently and accurately control the expansion force. Coupled with the detachable installation method, the operation method of the mouth opener can be made more flexible, taking into account both doctor's diagnosis and treatment and later rehabilitation training, effectively expanding the application range of the mouth opener. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0030] In the drawings:

[0031] Figure 1 is a structural schematic diagram of the present invention;

[0032] Figure 2 is a structural schematic diagram of the installation structure of the flared seat of the present invention;

[0033] Figure 3 is a structural schematic diagram of the empathy expansion mechanism of the present invention;

[0034] Figure 4 It is a schematic diagram of the installation structure of the block of the present invention;

[0035] Figure 5 It is a schematic diagram of the shaft tube installation structure of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the segmented splicing mechanism of the present invention;

[0037] Figure 7 is a partial exploded view of the present invention;

[0038] Numbers in the figure: 1, base; 2, rotating arm; 3, suspension; 4, clamp arm; 5, cheek plate

[0039] 200, sympathetic expansion mechanism; 201, shaft tube; 202, piston; 203, pilot valve; 204, catheter; 205, block; 206, air cavity; 207, finger pressure head; 208, block; 209, spring; 210, barometer; 211, slide cylinder; 212, plug ring; 213, guide hole; 214, straight tube; 215, strip box; 216, insert tube; 217, expansion seat; 218, top box; 219, bottom box; 220, ring plug; 221, horizontal tube; 222, vertical tube; 223, cylinder; 224, sealing ring;

[0040] 300, segmented splicing mechanism; 301, valve housing; 302, driving bolt; 303, plug disc; 304, column cavity; 305, side hole; 306, stopper plate; 307, compression spring; 308, groove; 309, strip plate; 310, ejector pin; 311, flower plate; 312, bump; 313, screw rod; 314, tooth plate; 315, clamping tube; 316, negative pressure ball; 317, pinch ball; 318, check valve; 319, connecting pipe; 320, flat box; 321, sealing bolt;

[0041] 3091, air valve; 3141, tooth pad. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0043] Example: Figure 1-7 As shown, the present invention provides a technical solution, a multifunctional detachable mouth opener for oral orthodontics, comprising a base 1, a rotating arm 2 is hingedly connected to the top and the middle of the bottom of the base 1, a suspension 3 is hingedly connected to the end of the rotating arm 2, a clamp arm 4 is hingedly connected to the end of the rotating arm 2 at the outer position of the suspension 3, and a sympathetic expansion mechanism 200 is installed on the end surface of the suspension 3;

[0044] The sympathetic expansion mechanism 200 includes an axial tube 201, a piston 202, a pilot valve 203, a guide tube 204, a block 205, an air cavity 206, a finger pressure head 207, a plug 208, a spring 209, a barometer 210, a slide 211, a plug ring 212, a guide hole 213, a straight tube 214, a bar box 215, a plug 216, an expansion seat 217, a top box 218, a bottom box 219, a ring plug 220, a horizontal tube 221, a vertical tube 222, a cylinder 223 and a sealing ring 224;

[0045] An axis tube 201 is embedded and slidably installed on one end surface of the base 1, a piston 202 is slidably installed inside the base 1, a pilot valve 203 is embedded and installed in the middle of the other end surface of the base 1, a pressure gauge 210 is embedded and installed on one side of the top of the base 1, a guide tube 204 is installed on the end of the axis tube 201, a blocking block 205 is embedded and slidably installed on one end of the clamp arm 4, an air cavity 206 is opened inside the clamp arm 4 at the position corresponding to the blocking block 205, a finger pressure head 207 is installed in the middle of the side end surface of the blocking block 205, a plug 208 is embedded and slidably installed on the side end surface of the air cavity 206 near the position of the blocking block 205, and a spring 209 is installed at the end of the plug 208;

[0046] A slide 211 is embedded and installed at the top of the base 1, the guide valve 203 is a one-way valve, the air cavity 206 is communicated with the shaft tube 201 through the guide tube 204, the shaft tube 201 and the slide 211 are communicated with the inner cavity of the base 1 through the guide hole 213, the longitudinal section of the plug 208 is I-shaped, the original length of the spring 209 is greater than the thickness of the air cavity 206, so as to perform stepless regulation of the external expansion force, straight tubes 214 are embedded and slidably installed at both ends of the slide 211, and a plug ring 212 is installed at the end of the straight tube 214 located at the inner position of the slide 211, the slide 211 and the piston 202 are provided with guide holes 213 in the middle of the side end faces, a bar box 215 is installed at the other end of the straight tube 214, a plug 216 is installed by threading at the other side of the bottom of the bar box 215, and a flaring seat 217 is rotatably installed at the end of the plug 216;

[0047] A top box 218 is installed on both sides of one flared seat 217, and a bottom box 219 is installed on both sides of the other flared seat 217. A cheek plate 5 is installed at the corner of the arc-shaped part of the top box 218, and the arc-shaped parts of the top box 218 and the bottom box 219 and the cheek plate 5 are in line with the arc of the human oral cavity to improve the support effect. A ring plug 220 is slidably installed inside the top box 218 and the bottom box 219, and a transverse tube 221 is installed at the end of the ring plug 220. The top box 218 and the bottom box 219 are both sealed and slidably connected with the transverse tube 221, and the end of the transverse tube 221 is connected to the flared seat 217 through a thread to improve the support reliability;

[0048] One side of the bottom end of the top box 218 is provided with a vertical pipe 222, and one side of the top end of the bottom box 219 is provided with a cylinder 223. The interiors of the top box 218 and the bottom box 219 at the positions outside the horizontal pipe 221 and the interior of the cylinder 223 at the position outside the vertical pipe 222 are filled with clean air to improve the convenience of using the flaring tool. The end of the vertical pipe 222 at the position inside the cylinder 223 is provided with a sealing ring 224. The sealing ring 224 is slidably connected to the cylinder 223, and the cylinder 223 fits with the sealing ring 224. The slidable distance of the sealing ring 224 is the same as the slidable distance of the plug ring 212 to improve the external expansion stability.

[0049] The segmented splicing mechanism 300 includes a valve housing 301, a driving bolt 302, a plug disk 303, a column cavity 304, side holes 305, a flow stop plate 306, a compression spring 307, a groove 308, a strip plate 309, a thimble 310, a flower plate 311, a convex block 312, a lead screw 313, a toothed plate 314, a clamping pipe 315, a negative pressure ball 316, a pinch ball 317, a check valve 318, a connecting pipe 319, a flat box 320 and a sealing bolt 321;

[0050] The valve housing 301 is installed at the outer curved surface of the horizontal pipe 221 near the flaring seat 217. The top of the outer curved surface of the valve housing 301 is threadedly embedded with the driving bolt 302. The end of the driving bolt 302 is provided with the plug disk 303. A column cavity 304 is opened at the corresponding position of the plug disk 303 inside the horizontal pipe 221. A plurality of side holes 305 are opened at equal angles along the circumferential direction at the position of the outer curved surface of the horizontal pipe 221 inside the flaring seat 217. The flow stop plates 306 are symmetrically and slidably installed inside the flaring seat 217. A compression spring 307 is installed in the middle of the side end face of the flow stop plate 306. A plurality of grooves 308 are opened at equal angles along the circumferential direction on the outer curved surface of the flow stop plate 306;

[0051] The strip plate 309 is slidably installed inside the strip box 215. The thimble 310 is installed at the end face of the strip plate 309 corresponding to the insertion pipe 216. The flower plate 311 is slidably installed inside the insertion pipe 216. The original length of the compression spring 307 is greater than twice the slidable distance of the flow stop plate 306. The minimum distance between the flow stop plate 306 and the end face of the flaring seat 217 is less than the distance between the valve housing 301 and the side holes 305. The distance between the strip plate 309 and the bottom end of the strip box 215 is less than the length of the insertion pipe 216. The minimum distance between the flower plate 311 and the end of the insertion pipe 216 is less than the length of the thimble 310. An air valve 3091 is embedded and installed at the position on one side of the end face of the strip box 215 far from the length of the insertion pipe 216. The interior of the strip box 215 between the air valve 3091 and the strip plate 309 is filled with clean air to improve the flexibility of using the opener. A plurality of convex blocks 312 are installed at equal angles along the circumferential direction at the end of the insertion pipe 216. A lead screw 313 is installed by threading at the position on one side of the end face of the flaring seat 217 close to the base body 1. The toothed plate 314 is installed at the end of the lead screw 313. The middle part of the top of one toothed plate 314 is embedded and clamped with the clamping pipe 315;

[0052] One end of the card tube 315 is installed with a negative pressure ball 316, the other end of the negative pressure ball 316 is installed with a pinch ball 317, check valves 318 are installed at both ends of the pinch ball 317 corresponding to the position of the card tube 315, a tooth pad 3141 is embedded and bonded to the end face of the tooth plate 314, and the cross-section of the tooth pad 3141 fits the arc of the teeth in the human oral cavity. The check valves 318 at both ends of the pinch ball 317 are respectively an inlet liquid one-way valve and an outlet liquid one-way valve, and the pinch ball 317 is connected to the card tube 315 through the inlet liquid one-way valve. The negative pressure ball 316 is a hollow mesh structure for saliva cleaning;

[0053] Connecting pipes 319 are installed on both sides of the top of the top box 218, both sides of the bottom of the bottom box 219, and both sides of the outer surface of the cylinder 223. A flat box 320 is installed at the end of the connecting pipe 319. A sealing bolt 321 is installed at the position corresponding to the connecting pipe 319 on the end face of the flat box 320 by threading. The spaces in the inner cavities of the top box 218 and the bottom box 219 on both sides of the ring plug 220 are communicated through the connecting pipe 319 and the flat box 320. The spaces in the inner cavity of the cylinder 223 on both sides of the sealing ring 224 are communicated through the connecting pipe 319 and the flat box 320. The length of the sealing bolt 321 is greater than the thickness of the flat box 320, and the end of the sealing bolt 321 fits the connecting pipe 319 to finely adjust and correct the initial state of the mouth opener.

[0054] The working principle and usage process of the present invention: For this multifunctional detachable mouth opener for orthodontics, before actual use, first, according to the usage situation, that is, according to the patient's condition requirements, the corresponding components of the mouth opener are selected and assembled to provide local support and overall support for the patient's lips, teeth, and cheeks, and can adsorb and clean saliva to take into account the different needs of doctors' observation and diagnosis and rehabilitation training. The following will be described with the overall support as the main body. Removing the corresponding accessories on the basis of the overall support can meet the different needs of patients;

[0055] First, take out the main body part composed of the base body 1, the rotating arm 2, the suspension 3, and the pliers arm 4, then take out the flaring seat 217, align the insertion tube 216 with the opening on the strip box 215, rotate the insertion tube 216, and screw the insertion tube 216 into the strip box 215. Then, stably connect the two flaring seats 217 to the two strip boxes 215 respectively. During this process, as the insertion tube 216 is screwed into the strip box 215, it will press against the strip plate 309, forcing the strip plate 309 to squeeze the air on the other side and slide inside the strip box 215. At the same time, the ejector pin 310 will also press against the flower plate 311, forcing the flower plate 311 to slide inside the insertion tube 216, opening the air flow path between the strip box 215 and the flaring seat 217. It should be noted here that: before use, it should be ensured that the air pressure inside the strip box 215 between the strip plate 309 and the air valve 3091 is greater than the air pressure on the other side of the strip plate 309 to ensure the assembly stability of the flaring seat 217;

[0056] Subsequently, align the horizontal pipe 221 on the top box 218 with the opening on the flared seat 217 at the top, align the horizontal pipe 221 on the bottom box 219 with the opening on the flared seat 217 at the bottom, and rotate the horizontal pipe 221 to install the top box 218 and the bottom box 219 on the two flared seats 217 respectively. Here, according to the habit of the individual holding the pliers arm 4, it can also be installed in the reverse way, as long as two top boxes 218 are installed on one flared seat 217 at the same time, and two bottom boxes 219 are installed on the other flared seat 217 at the same time. During the process of screwing the horizontal pipe 221 into the flared seat 217, the horizontal pipe 221 will press against the flow-stop plate 306, forcing the two flow-stop plates 306 to approach each other against the elastic force of the compression spring 307, so that the side holes 305 are communicated with the inner cavity of the flared seat 217. Subsequently, rotate the driving bolt 302 to drive the plug disk 303 to slide along the column cavity 304, opening the air flow path between the inner cavities of the top box 218 and the bottom box 219 and the two flared seats 217;

[0057] Then take out the toothed plate 314, align the lead screw 313 with the hole on the flared seat 217, and rotate the lead screw 313 to screw it into the flared seat 217, install the toothed plate 314 that can install the clamping pipe 315 on the bottom flared seat 217, install the other toothed plate 314 on the top flared seat 217, take out the clamping pipe 315, and clamp the clamping pipe 315 on the bottom toothed plate 314. By adjusting the depth of the lead screw 313 screwed into the flared seat 217, the distance between the toothed plate 314 and the flared seat 217 can be limited to adapt to the individual differences of patients. Finally, stick the tooth pad 3141 on the concave part of the toothed plate 314, and the overall assembly work of this flaring device is completed. Just carry out relevant adjustment work before the first use, and it can be officially put into use;

[0058] Rotate the sealing bolt 321 to screw out the end of the sealing bolt 321 from the connecting pipe 319, open the flow path of the connecting pipe 319, hold the pliers arm 4, and under the limit of the rotating arm 2, drive the shaft pipe 201 to reciprocate through the suspension 3, forcing the piston 202 to slide back and forth in the base body 1 driven by the shaft pipe 201. Then, under the restriction of the pilot valve 203, external air will be drawn into the base body 1 and then be pressed into the sliding cylinder 211 through the guide hole 213. Subsequently, the air flow will enter the strip box 215 through the straight pipe 214, enter the flared seat 217 through the intubation 216, enter the top box 218 and the bottom box 219 through the horizontal pipe 221, and enter the cylinder 223 through the vertical pipe 222. For the convenience of subsequent description, this air flow path is called the air pressure path. Finally, under the guidance of the connecting pipe 319 and the flat box 320, the air flow will enter the space outside the horizontal pipe 221 inside the top box 218 and the bottom box 219 and the space outside the vertical pipe 222 inside the cylinder 223;

[0059] In the initial state, the spaces inside the top box 218 and the bottom box 219 outside the horizontal tube 221 and the space inside the cylinder body 223 outside the vertical tube 222 are filled with air, so that the flaring seat 217, the top box 218, the bottom box 219 and the toothed plate 314 are in a retracted state close to each other, so as to insert the flaring device into the patient's oral cavity;

[0060] The aforementioned adjustment work only needs to be carried out before the patient's first use, so as to finely adjust the spacing between the flaring seat 217, the top box 218, the bottom box 219 and the toothed plate 314 in the initial state, adjust the overall initial outward expansion size of the mouth opener to adapt to the patient's oral cavity. After completing the above adjustment work, reverse-rotate the sealing bolt 321 to cut off the flow path of the connecting pipe 319, and then the initial state can be fixed to ensure that without external force support, the flaring device will return to the initial state under the action of air pressure, and then it can be officially put into use;

[0061] During the use of the flaring device, first hold the pliers arm 4. In this process, two fingers should be inserted into the holes at the end of the pliers arm 4 respectively, so that one finger is aligned with and can press the plug 208 at any time, and the holding method of the pliers arm 4 is adjusted adaptively according to personal habits. Then press the plug 208, and the air inside the air cavity 206 will flow out through the gap between the plug 208 and the air cavity 206. Under the conduction of the shaft tube 201, the conduit 204 and the guide hole 213, the air inside the base body 1 will also flow out correspondingly, and the air filled into the top box 218, the bottom box 219 and the cylinder body 223 will also flow out correspondingly;

[0062] Since the flow path of the connecting pipe 319 has been cut off, the air in the spaces inside the top box 218 and the bottom box 219 outside the horizontal tube 221 and the air inside the cylinder body 223 outside the vertical tube 222 will be retained correspondingly. At this time, a pressure difference will be formed between the ring plug 220 and the sealing ring 224, resulting in the flaring device finally returning to the initial state under the action of air pressure;

[0063] Then stop pressing the plug 208, so that the plug 208 is reset under the drive of the spring 209, and the gap between the air cavity 206 and the plug 208 is blocked again. After the arc part on the flaring seat 217 is sent into the patient's oral cavity and the patient bites the tooth pad 3141 on the toothed plate 314, press the pliers arm 4 back and forth again, draw in external air, and fill the air into the top box 218, the bottom box 219 and the cylinder body 223 through the aforementioned air pressure path, forcing the ring plug 220 and the sealing ring 224 to slide correspondingly under the action of air pressure to overcome the pressure on the other side, and gradually increase the spacing between the flaring seat 217, the top box 218, the bottom box 219 and the toothed plate 314, so that the overall size of the flaring device expands outward;

[0064] During this process, the parts of the flaring base 217, the top box 218, and the bottom box 219 that are inserted into the patient's oral cavity will provide elastic support to stretch the patient's lips, the cheek plates 5 will provide elastic support to the patient's cheeks, and the tooth plates 314 will provide elastic support to the patient's teeth. Thus, during the process of the overall size of the mouth opener expanding outwards, the patient's oral cavity will be opened up;

[0065] Meanwhile, under the conduction of the guide holes 213, the shaft tube 201, and the catheter 204, the air drawn into the base body 1 will also be synchronously sent into the air cavity 206, forcing the plug 205 to push the finger pressure head 207 to press against the doctor's finger under the action of air pressure. Moreover, the plug 205 drives the finger pressure head 207 to squeeze the doctor's finger under the action of the same air pressure, which can help the doctor more intuitively feel the support force on the patient's oral cavity. With the indication of the pressure gauge 210, the support force on the patient's oral cavity can be accurately controlled and steplessly adjusted according to actual needs. While adapting to different oral cavity sizes, it can avoid the strain of the muscles around the patient's oral cavity;

[0066] The above process is the process of opening up the patient's oral cavity and providing overall support. The above-mentioned installation and adjustment process only needs to be carried out during the first use. Subsequently, the air can be directly inflated into the top box 218, the bottom box 219, and the cylinder body 223 by squeezing the pliers arm 4, and the air can be released by pressing the plug 208. By regulating the air pressure, the support force on the oral cavity and the opening size of the patient's oral cavity can be controlled;

[0067] During the doctor's observation and diagnosis process, if only the patient's teeth need to be supported and the patient's oral cavity needs to be opened up, the top box 218 and the bottom box 219 can be selected not to be assembled during the above-mentioned assembly stage. Only the flaring base 217 and the tooth plates 314 are used to open up the patient's oral cavity. In addition, the strip box 215 is rotationally connected to the flaring base 217 through the insertion tube 216. During this process, the base body 1, the rotating arm 2, the suspension 3, and the pliers arm 4 can be deflected to one side, which is more convenient for observation. Similarly, during the rehabilitation training process, if only the patient's teeth need to be supported, the top box 218 and the bottom box 219 can also be selected not to be assembled. By regulating the air pressure, the support force on the oral cavity can be steplessly regulated to meet the different force requirements during the passive stretching training process and the active strength training process;

[0068] During the diagnosis and treatment process, if it is necessary to fully open the patient's lips, the top box 218 and the bottom box 219 can be selected to be installed during the above-mentioned assembly stage. At the same time, in order to further improve the observation and operation space, after the air pressure adjustment work is completed, the insertion tube 216 can be rotated in the reverse direction to disassemble the strip box 215 from the top box 218 and the bottom box 219, so as to remove the base body 1, the rotating arm 2, the suspension 3, the pliers arm 4, and the strip box 215, expanding the observation space and the hand operation space;

[0069] When there is a need for saliva cleaning, the squeeze ball 317 can be reciprocally squeezed. Under the current-limiting guidance of the check valve 318, a negative pressure will be formed at the negative pressure ball 316, forcing the saliva to enter the clamping tube 315 after being filtered by the negative pressure ball 316, and then passing through the liquid inlet check valve in the check valve 318 into the squeeze ball 317, and then being discharged through the liquid outlet check valve in the check valve 318. During the assembly stage, when there is a need for saliva cleaning, an external liquid storage bag can be put on the end of the liquid outlet check valve in the check valve 318. When there is no need for saliva cleaning, the clamping tube 315 can be optionally not assembled during the assembly stage;

[0070] During the disassembly and assembly process, when the strip plate 309 has no supporting force provided by the intubation tube 216, it will fit with the strip box 215 under the action of air pressure, connecting the communication port between the strip box 215 and the intubation tube 216. When the flow-stop plate 306 has no supporting force provided by the horizontal tube 221, the flow-stop plate 306 will fit with the openings on both sides of the flared seat 217 under the elastic force of the compression spring 307. Coupled with the on-off function of the plug disk 303 and the column cavity 304, the internal air flow can be kept smooth during the assembly of each component, and the relative independence of the air medium inside each component can be ensured during disassembly, so that the mouth opener can retain the elastic supporting force in the incompletely assembled state.

[0071] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multifunctional detachable mouth opener for orthodontics, comprising a base body (1), characterized in that: At the middle of the top and bottom of the base body (1), swing arms (2) are hinged. At the end of the swing arm (2), a suspension (3) is hinged. At the position outside the suspension (3) at the end of the swing arm (2), a clamping arm (4) is hinged. An empathy expansion mechanism (200) is installed on the end face of the suspension (3). The empathy expansion mechanism (200) includes a shaft tube (201). The shaft tube (201) is embedded and slidably installed on one end face of the base body (1). A piston (202) is slidably installed inside the base body (1). A pilot valve (203) is embedded and installed at the middle of the other end face of the base body (1). A pressure gauge (210) is embedded and installed on one side of the top of the base body (1). A conduit (204) is installed at the end of the shaft tube (201). A plug (205) is embedded and slidably installed at one end of the clamping arm (4). An air cavity (206) is formed inside the clamping arm (4) at the position corresponding to the plug (205). A finger pressure head (207) is installed at the middle of the side end face of the plug (205). A plug (208) is embedded and slidably installed at the side end face of the air cavity (206) near the plug (205). A spring (209) is installed at the end of the plug (208). A sliding cylinder (211) is embedded and installed at the top of the base body (1). Straight tubes (214) are embedded and slidably installed at both ends of the sliding cylinder (211). A plug ring (212) is installed at the position inside the sliding cylinder (211) at the end of the straight tube (214). Guide holes (213) are formed at the middle of the side end faces of the sliding cylinder (211) and the piston (202). A strip box (215) is installed at the other end of the straight tube (214). An insertion tube (216) is installed at the other side of the bottom end of the strip box (215) by means of threading. A flaring seat (217) is rotatably installed at the end of the insertion tube (216). The pilot valve (203) is a one-way valve. The air cavity (206) is communicated with the shaft tube (201) through the conduit (204). Both the shaft tube (201) and the sliding cylinder (211) are communicated with the inner cavity of the base body (1) through the guide hole (213). Top boxes (218) are installed on both sides of one flaring seat (217). Bottom boxes (219) are installed on both sides of the other flaring seat (217). Ring plugs (220) are slidably installed inside the top boxes (218) and the bottom boxes (219). A cross tube (221) is installed at the end of the ring plug (220). A vertical tube (222) is installed at one side of the bottom end of the top box (218). A cylinder (223) is installed at one side of the top end of the bottom box (219). A sealing ring (224) is installed at the position inside the cylinder (223) at the end of the vertical tube (222). Both the top boxes (218) and the bottom boxes (219) are in sealed sliding connection with the cross tube (221). When the guide hole (213), the shaft tube (201) and the conduit (204) are connected, the air drawn into the base (1) will also be simultaneously sent into the air cavity (206), forcing the block (205) to push the finger pressure head (207) against the doctor's finger under the action of air pressure, and the block (205) drives the finger pressure head (207) to squeeze the doctor's finger under the action of the same air pressure, which can help the doctor to more intuitively feel the support strength of the patient's oral cavity. With the indication of the pressure gauge (210), the support strength of the patient's oral cavity can be accurately controlled and can be adjusted steplessly according to actual needs.

2. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that The plug (208) has an I-shaped longitudinal section, and the original length of the spring (209) is greater than the thickness of the air cavity (206).

3. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that, A cheek plate (5) is installed at the corner of the arc-shaped portion of the top box (218), and the arc-shaped portions of the top box (218) and the bottom box (219) and the cheek plate (5) all fit the arc of the human oral cavity.

4. The multifunctional detachable mouth opener for orthodontics according to claim 1, wherein The end of the transverse tube (221) is connected to the expansion seat (217) via threads.

5. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that, The interior of the top box (218) and the bottom box (219) at a position outside the horizontal tube (221) and the interior of the cylinder (223) at a position outside the vertical tube (222) are filled with clean air.

6. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that, The sealing ring (224) is slidably connected to the cylinder (223), and the cylinder (223) and the sealing ring (224) fit together. The slidable distance of the sealing ring (224) is the same as the slidable distance of the plug ring (212).

7. The multifunctional detachable mouth opener for orthodontics according to claim 1, characterized in that, A valve housing (301) is installed at a position of the outer curved surface of the transverse tube (221) close to the expansion seat (217); a driving bolt (302) is installed at the top of the outer curved surface of the valve housing (301) through thread embedding; a plug disc (303) is installed at the end of the driving bolt (302); a column cavity (304) is opened inside the transverse tube (221) at a position corresponding to the plug disc (303); a plurality of side holes (305) are opened at equal angles along the circumferential direction at a position inside the expansion seat (217); a flow stop plate (306) is symmetrically slidably installed inside the expansion seat (217); a compression spring (307) is installed in the middle of the side end surface of the flow stop plate (306); and a plurality of grooves (308) are opened at equal angles along the circumferential direction on the outer curved surface of the flow stop plate (306); A strip plate (309) is slidably mounted inside the strip box (215), a pin (310) is mounted on the end surface of the strip plate (309) at a position corresponding to the insertion tube (216), a flower plate (311) is slidably mounted inside the insertion tube (216), a plurality of protrusions (312) are mounted at equal angles along the circumferential direction at the end of the insertion tube (216), a screw rod (313) is threadedly mounted at a position close to one side of the base (1) on the end surface of the flaring seat (217), a tooth plate (314) is mounted on the end of the screw rod (313), and a clamping tube (315) is embedded and clamped in the middle of the top end of the tooth plate (314); One end of the clamping tube (315) is installed with a negative pressure ball (316), the other end of the negative pressure ball (316) is installed with a squeezing ball (317), check valves (318) are installed at both ends of the squeezing ball (317) corresponding to the position of the clamping tube (315), connecting tubes (319) are installed on both sides of the top of the top box (218), both sides of the bottom of the bottom box (219), and both sides of the outer curved surface of the cylinder (223), a flat box (320) is installed at the end of the connecting tube (319), and a sealing bolt (321) is embedded and installed at the position of the flat box (320) end face corresponding to the connecting tube (319) through threads.

8. The multifunctional detachable mouth opener for orthodontics according to claim 7, characterized in that, The original length of the compression spring (307) is greater than twice the slidable distance of the flow stop plate (306), the minimum distance between the flow stop plate (306) and the end face of the flared seat (217) is less than the distance between the valve housing (301) and the side hole (305), the distance between the strip plate (309) and the bottom of the strip box (215) is less than the length of the insertion tube (216), the minimum distance between the flower plate (311) and the end of the insertion tube (216) is less than the length of the ejector pin (310), an air valve (3091) is embedded and installed at a position on one side of the strip box (215) end face far from the length of the insertion tube (216), and clean air is filled at a position inside the strip box (215) between the air valve (3091) and the strip plate (309).

9. The multifunctional detachable mouth opener for orthodontics according to claim 7, wherein, A tooth pad (3141) is embedded and bonded to the end face of the toothed plate (314), the cross-section of the tooth pad (3141) fits the arc of the human oral teeth, the check valves (318) at both ends of the squeezing ball (317) are respectively an inlet liquid one-way valve and an outlet liquid one-way valve, and the squeezing ball (317) is connected to the clamping tube (315) through the inlet liquid one-way valve, and the negative pressure ball (316) is a hollow mesh structure.

10. The multifunctional detachable mouth opener for orthodontics according to claim 7, characterized in that, The spaces on both sides of the ring plug (220) in the inner cavities of the top box (218) and the bottom box (219) are communicated through the connecting tube (319) and the flat box (320), the spaces on both sides of the sealing ring (224) in the inner cavity of the cylinder (223) are communicated through the connecting tube (319) and the flat box (320), the length of the sealing bolt (321) is greater than the thickness of the flat box (320), and the end of the sealing bolt (321) fits the connecting tube (319).

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