Side guide rod appliance

Abstract

The utility model relates to the field of medical instruments, and particularly discloses a lateral guide rod appliance, which comprises an upper tooth socket, an expansion device and two guide rods, the upper tooth socket comprises two side tooth sockets, and the two side tooth sockets are oppositely arranged at an interval. Arc-shaped connecting plates are arranged at the opposite ends of the two side tooth sockets, and the ends, away from the side tooth sockets, of the two arc-shaped connecting plates are connected. The arch expanding device is arranged between the two side tooth sockets, and two ends of the arch expanding device are respectively connected with the two side tooth sockets. The two guide rods and the two side tooth sockets are oppositely arranged, and the guide rods are rotationally installed at the ends, away from the arc-shaped connecting plate, of the side tooth sockets. The upper tooth socket has the effect that the upper tooth socket can better adapt to the oral environment of a patient.

Description

Technical Field

[0001] This application relates to the field of medical devices, and particularly to a lateral guiding rod appliance. Background Art

[0002] Currently, an appliance is a device for correcting malocclusion, which can be freely removed and worn by the patient or the doctor, and is retained by the clasping action of the clasp and the adsorption action of the mucosa. Springs and other accessories can be added to the appliance as needed to generate a corrective force to achieve the purpose of correcting malocclusion.

[0003] In the related art, an appliance is disclosed. Through the cooperation of an upper dental appliance, a lower dental appliance, a bite plate module and a preformed guiding rod, the positions of the upper dental appliance and the lower dental appliance are effectively fixed, and the gap between the upper and lower rows of teeth of the wearer can be effectively filled, and the teeth can be effectively and accurately corrected and guided.

[0004] For the above related art, there are the following defects: The size of the dental appliance is a fixed structure and cannot be adjusted, making it difficult to better adapt to the oral environment of the patient. Utility Model Content

[0005] In order to enable the appliance to better adapt to the oral environment of the patient, this application provides a lateral guiding rod appliance.

[0006] The lateral guiding rod appliance provided by this application adopts the following technical solution:

[0007] A lateral guiding rod appliance includes an upper dental appliance, an expander and two guiding rods. The upper dental appliance includes two side dental appliances, and the two side dental appliances are arranged opposite to each other at intervals;

[0008] Arc-shaped connecting plates are provided at one end of the two side dental appliances facing each other, and one end of the two arc-shaped connecting plates away from the side dental appliances is connected;

[0009] The expander is arranged between the two side dental appliances, and both ends are respectively connected to the two side dental appliances;

[0010] The two guiding rods are arranged opposite to the two side dental appliances, and the guiding rods are rotatably installed at one end of the side dental appliances away from the arc-shaped connecting plates.

[0011] By adopting the above technical solution, by holding the two guiding rods, the position of the upper dental appliance is adjusted so that the upper dental appliance can approach and be sleeved on the teeth at the upper dental arch. The two side dental appliances are respectively sleeved on the left teeth and the right teeth of the upper dental arch. The expander is used to adjust the distance between the two side dental appliances, so that the width of the upper dental appliance can be adjusted, and thus the upper dental appliance can better adapt to the oral environment of the patient.

[0012] Optionally, a tooth receiving groove is provided on the side dental appliance, and the tooth receiving groove is provided between the arc-shaped connecting plate and the corresponding guide rod;

[0013] The arc-shaped connecting plate is connected to the side dental appliance at the notch of the tooth receiving groove;

[0014] The arch expander is provided between the arc-shaped connecting plate and the bottom of the tooth receiving groove.

[0015] By adopting the above technical solution, the tooth receiving groove is used to receive teeth, so that the side dental appliance can be sleeved on the teeth. And the arch expander will not contact the hard palate and soft palate parts, avoiding scratching the oral cavity by the arch expander.

[0016] Optionally, a side through hole communicating with the tooth receiving groove is provided at one end of the side dental appliance away from the arc-shaped connecting plate;

[0017] The guide rod includes a connecting ring and a hand-held rod, and one end of the hand-held rod is connected to the side wall of the connecting ring;

[0018] A first connecting member is connected between the guide rod and the side dental appliance. The first connecting member includes a bolt and a nut. After the bolt passes through the connecting ring and the side through hole in sequence, it is screwed with the nut.

[0019] By adopting the above technical solution, the bolt passes through the connecting ring and the side through hole in sequence and is screwed with the nut, so that the guide rod is connected to the side dental appliance. And the connecting ring is sleeved on the bolt, so that the guide rod can rotate around the bolt, and thus the guide rod and the side dental appliance are rotatably connected.

[0020] Optionally, a side through hole communicating with the tooth receiving groove is provided at one end of the side dental appliance away from the arc-shaped connecting plate;

[0021] A second connecting member is connected between the guide rod and the side dental appliance. The second connecting member includes a round rod and a round plate. The round rod is arranged in the side through hole;

[0022] The round plate is arranged in the tooth receiving groove and is coaxially connected to the first end of the round rod;

[0023] A radially arranged side limit jack is provided on the side wall of the round rod, and the side limit jack is arranged outside the side dental appliance;

[0024] The guide rod includes a connecting ring and a hand-held rod. The first end of the hand-held rod is connected to the side wall of the connecting ring, and the connecting ring is sleeved on the round rod outside the side dental appliance;

[0025] A radially arranged guiding blind hole is provided on the inner hole wall of the connecting ring, and the guiding blind hole is coaxial with the first end of the hand-held rod;

[0026] A coaxial limit insertion rod is provided in the guiding blind hole, and in the length direction of the guiding blind hole, the limit insertion rod is slidably connected to the handheld rod, and the length of the limit insertion rod is less than the length of the guiding blind hole;

[0027] One end of the limit insertion rod away from the bottom of the guiding blind hole is used to insert into the side limit insertion hole.

[0028] By adopting the above technical solution, when the connecting ring is sleeved on the round rod outside the side dental appliance and the limit insertion rod is moved, so that a part of the limit insertion rod is located in the side limit insertion hole and the other part is located in the guiding blind hole, the connection between the guiding rod and the round rod can be realized. The guiding rod combined with the round plate can limit the relative position between the round rod and the side dental appliance, and at the same time the round rod can rotate in the side through hole, so that the guiding rod and the side dental appliance can be rotatably connected.

[0029] Optionally, a spring is connected between the limit insertion rod and the bottom of the guiding blind hole;

[0030] A thimble hole coaxial with the guiding blind hole is provided on the connecting ring, and the diameter of the thimble hole is smaller than the diameter of the limit insertion rod;

[0031] The length of the limit insertion rod is greater than the inner diameter of the connecting ring.

[0032] By adopting the above technical solution, when the connecting ring is sleeved on the round rod, the limit insertion rod is pressed into the guiding blind hole, and the attitude of keeping the axis of the guiding blind hole coplanar with the axis of the side limit insertion hole is maintained. As the connecting ring moves on the round rod, when the guiding blind hole is coaxial with the side limit insertion hole, under the elastic force of the spring, the limit insertion rod can automatically enter the side limit insertion hole, so that the connection between the guiding rod and the side dental appliance is convenient. When disassembling the guiding rod, take a thimble, insert the thimble into the thimble hole, use the thimble to push the limit insertion rod into the guiding blind hole, and then move the guiding rod away from the side dental appliance first. After the thimble contacts the inner wall of the side limit insertion hole, remove the thimble. At this time, the limit insertion rod abuts against the side wall of the round rod, and the guiding rod can be directly pulled off the round rod.

[0033] Optionally, a ball head is provided at one end of the limit insertion rod away from the spring.

[0034] By adopting the above technical solution, when the guiding blind hole is opposite to the side limit insertion hole but not completely coaxial, under the elastic force of the spring, when the ball head can enter the side limit insertion hole, at this time, when moving the connecting ring on the round rod, an obvious resistance can be felt, and then the limit on the connecting ring is released, so that the connecting ring can have a relative displacement with the round rod. Under the elastic force of the spring, the ball head can guide the limit insertion rod into the side limit insertion hole, thereby limiting the relative position between the connecting ring and the round rod, and facilitating the connection between the guiding rod and the round rod.

[0035] Optionally, a coaxial thimble slot is provided at one end of the limit insertion rod away from the spring;

[0036] A radially arranged groove is provided at one end of the round rod away from the round plate. Both ends of the groove penetrate through the side wall of the round rod, and the bottom of the groove communicates with the side limit jack;

[0037] The diameter of the thimble hole is smaller than the width of the groove.

[0038] By adopting the above technical solution, when it is necessary to disassemble the guide rod, take a thimble, pass the thimble through the thimble hole, and insert it into the thimble slot. Ensure that after the thimble abuts against the limit insertion rod, it is not easy to generate relative displacement with the limit insertion rod. Then, along the depth direction of the groove, move the thimble and the guide rod simultaneously. The thimble passes through the groove, and the connecting ring moves away from the round rod, and the disassembly of the guide rod can be realized, and the disassembly of the guide rod is convenient.

[0039] Optionally, a coaxial screw hole is provided at one end of the hand-held rod away from the connecting ring;

[0040] One end of the hand-held rod away from the connecting ring is also provided with a coaxial extension rod. One end of the extension rod is provided with a screw rod, and the screw rod is screwed with the hand-held rod through the screw hole.

[0041] By adopting the above technical solution, when the guide rod needs to be lengthened, the extension rod can be screwed with the guide rod to increase the length of the guide rod.

[0042] In summary, the present application includes at least one of the following beneficial technical effects:

[0043] 1. In the present application, by holding two guide rods and adjusting the position of the upper dental tray, it is convenient to make the upper dental tray close to and cover the teeth on the upper dental arch.

[0044] 2. In the present application, the arch expander is used to adjust the distance between the two side dental trays, so as to adjust the width of the upper dental tray, and further make the upper dental tray better adapt to the oral environment of the patient.

[0045] 3. In the present application, the guide rod is connected to the side dental tray by passing a bolt through the connecting ring and the side through hole in sequence and screwing it with a nut. The connecting ring is sleeved on the bolt, so that the guide rod can rotate around the bolt, and thus the guide rod and the side dental tray are rotatably connected.

[0046] 4. When the connecting ring is sleeved on the round rod in the present application, the limit insertion rod is pressed into the guide blind hole, and the attitude that the axis of the guide blind hole is coplanar with the axis of the side limit jack is maintained. As the connecting ring moves on the round rod, when the guide blind hole is coaxial with the side limit jack, the limit insertion rod can automatically enter the side limit jack under the elastic force of the spring, and thus the connection between the guide rod and the side dental tray is convenient.

[0047] 5. When disassembling the guide rod in this application, take a thimble, insert the thimble into the thimble hole, and use the thimble to push the limit insertion rod into the guiding blind hole. Then, the guide rod can be moved away from the side dental appliance first. After the thimble contacts the inner wall of the side limit insertion hole, the thimble can be removed. At this time, the limit insertion rod abuts against the side wall of the round rod, and the guide rod can be directly pulled off from the round rod, making it convenient to disassemble the guide rod from the side dental appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0049] Figure 1 is the overall structural schematic diagram of Embodiment 1 of this application;

[0050] Figure 2 is the sectional structural schematic diagram of Embodiment 1 of this application;

[0051] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0052] Figure 4 is the overall structural schematic diagram of Embodiment 2 of this application;

[0053] Figure 5 is the sectional structural schematic diagram of Embodiment 2 of this application;

[0054] Figure 6 is Figure 5 the enlarged schematic diagram of part B in

[0055] Figure 7 is Figure 5 the structural schematic diagram of the round rod in

[0056] Figure 8 is the exploded structural schematic diagram of the embodiments of this application.

[0057] REFERENCE MARKS:

[0058] 1. Upper dental appliance; 11. Side dental appliance; 1101. Tooth receiving groove; 1102. Side through hole; 12. Arc-shaped connecting plate;

[0059] 2. Expander;

[0060] 3. Guide rod;

[0061] 31. Connecting ring; 3101. Guide blind hole; 3102. Thimble hole; 311. Spring; 312. Limit insertion rod; 313. Ball head; 31301. Thimble slot

[0062] 32. Hand-held rod; 3201. Threaded hole

[0063] 33. Extension rod; 331. Screw rod

[0064] 34. Protective cover

[0065] 4. First connecting member; 41. Bolt; 42. Nut

[0066] 5. Second connecting member

[0067] 51. Round tube; 511. Side ring

[0068] 52. Round rod; 5201. Side limit jack; 5202. Groove; 53. Round plate Detailed implementation mode

[0069] The following is a further detailed description of the present application in conjunction with the attached Figure 1-8 to further elaborate on the present application.

[0070] The embodiment of the present application discloses a lateral guiding rod orthodontic appliance.

[0071] Embodiment 1

[0072] Referring to Figure 1 , a lateral guiding rod orthodontic appliance includes an upper dental appliance 1, an arch expander 2 and two guiding rods 3. The upper dental appliance 1 includes two side dental appliances 11, and the two side dental appliances 11 are arranged oppositely at intervals. One end of each of the two side dental appliances 11 facing each other is provided with an arc-shaped connecting plate 12, and one end of the two arc-shaped connecting plates 12 away from the side dental appliances 11 is connected. The arch expander 2 is arranged between the two side dental appliances 11 and is connected to the two side dental appliances 11 at both ends respectively. The two guiding rods 3 are arranged opposite to the two side dental appliances 11, and the guiding rods 3 are rotatably installed at one end of the side dental appliances 11 away from the arc-shaped connecting plate 12. A tooth receiving groove 1101 is provided on the side dental appliance 11, and the tooth receiving groove 1101 is arranged between the arc-shaped connecting plate 12 and the corresponding guiding rod 3. The tooth receiving groove 1101 is used to receive teeth so that the side dental appliance 11 can be sleeved on the teeth. The arc-shaped connecting plate 12 is connected to the side dental appliance 11 at the notch of the tooth receiving groove 1101. The arch expander 2 is arranged between the arc-shaped connecting plate 12 and the bottom of the tooth receiving groove 1101, so that the arch expander 2 does not contact the hard palate and soft palate parts, avoiding scratching the oral cavity by the arch expander 2.

[0073] Referring to Figure 1, in the embodiment of the present application, the upper dental appliance 1 is prepared by 3D printing using a transparent plastic material. The side dental appliances 11 and the arc connecting plate 12 are integrally formed structures, and the arc connecting plate 12 protrudes towards the hard palate. After the two side dental appliances 11 are made by 3D printing, the ends of the two arc connecting plates 12 away from the side dental appliances 11 are connected to form a complete upper dental appliance 1. When in use, by holding the two guiding rods 3, the position of the upper dental appliance 1 is adjusted so that the upper dental appliance 1 can approach and fit over the teeth on the upper dental arch. The two side dental appliances 11 are respectively fitted over the left and right teeth of the upper dental arch. The arch expander 2 is used to adjust the distance between the two side dental appliances 11 so that the width of the upper dental appliance 1 can be adjusted, and thus the upper dental appliance 1 can better adapt to the oral environment of the patient.

[0074] Refer to Figure 2 and Figure 3 , at one end of the side dental appliance 11 away from the arc connecting plate 12, there is a side through hole 1102 communicating with the tooth receiving groove 1101. The guiding rod 3 includes a connecting ring 31 and a hand-held rod 32, and one end of the hand-held rod 32 is connected to the side wall of the connecting ring 31. A first connecting member 4 is connected between the guiding rod 3 and the side dental appliance 11. The first connecting member 4 includes a bolt 41 and a nut 42. After the bolt 41 passes through the connecting ring 31 and the side through hole 1102 in sequence, it is screwed with the nut 42.

[0075] Refer to Figure 2 and Figure 3 , in the embodiment of the present application, by the way that the bolt 41 passes through the connecting ring 31 and the side through hole 1102 in sequence and is screwed with the nut 42, the guiding rod 3 is connected to the side dental appliance 11. And the connecting ring 31 is sleeved on the bolt 41, so that the guiding rod 3 can rotate around the bolt 41, and thus the guiding rod 3 is rotatably connected to the side dental appliance 11.

[0076] The implementation principle of a lateral guiding rod orthodontic appliance in an embodiment of the present application is as follows:

[0077] When the guiding rod 3 is installed, by the way that the bolt 41 passes through the connecting ring 31 and the side through hole 1102 in sequence and is screwed with the nut 42, the guiding rod 3 is connected to the side dental appliance 11. And the connecting ring 31 is sleeved on the bolt 41, so that the guiding rod 3 can rotate around the bolt 41, and thus the guiding rod 3 is rotatably connected to the side dental appliance 11. When the guiding rod 3 is disassembled, the connection between the bolt 41 and the nut 42 is released.

[0078] When the patient wears the orthodontic appliance, the doctor holds two guiding rods 3 and adjusts the position of the upper dental appliance 1 to guide the upper dental appliance 1 to approach and cover the teeth on the upper dental arch. The two side dental appliances 11 are respectively sleeved on the left teeth and the right teeth of the upper dental arch. The arch expander 2 is used to adjust the distance between the two side dental appliances 11, so as to adjust the width of the upper dental appliance 1, and further enable the upper dental appliance 1 to better adapt to the patient's oral environment.

[0079] Embodiment 2

[0080] Refer to Figure 4 、 Figure 5 and Figure 6 In Embodiment 2, the difference from Embodiment 1 is that a side through hole 1102 communicating with the tooth receiving groove 1101 is provided at one end of the side dental appliance 11 away from the arc-shaped connecting plate 12. A second connecting member 5 is connected between the guiding rod 3 and the side dental appliance 11. The second connecting member 5 includes a round rod 52 and a round plate 53. The round rod 52 is arranged in the side through hole 1102. The round plate 53 is arranged in the tooth receiving groove 1101 and is coaxially connected to the first end of the round rod 52. A radially arranged side limiting jack 5201 is provided on the side wall of the round rod 52, and the side limiting jack 5201 is arranged outside the side dental appliance 11. The guiding rod 3 includes a connecting ring 31 and a hand-held rod 32. The first end of the hand-held rod 32 is connected to the side wall of the connecting ring 31. The connecting ring 31 is sleeved on the round rod 52 outside the side dental appliance 11. A radially arranged guiding blind hole 3101 is provided on the inner hole wall of the connecting ring 31, and the guiding blind hole 3101 is coaxial with the first end of the hand-held rod 32. A coaxial limiting insertion rod 312 is arranged in the guiding blind hole 3101. In the length direction of the guiding blind hole 3101, the limiting insertion rod 312 is slidably connected to the hand-held rod 32, and the length of the limiting insertion rod 312 is less than the length of the guiding blind hole 3101. The end of the limiting insertion rod 312 away from the bottom of the guiding blind hole 3101 is used to be inserted into the side limiting jack 5201.

[0081] Refer to Figure 4 、 Figure 5 and Figure 6, in the embodiment of the present application, a circular tube 51 is provided in the side through hole 1102. Coaxial side rings 511 are provided at both ends of the circular tube 51. The two side rings 511 are respectively arranged on both sides of the side through hole 1102 and clamp the side wall of the tooth receiving groove 1101 at the side through hole 1102, so that the circular tube 51 can be fixed in the side through hole 1102. A round rod 52 is arranged in the circular tube 51. The circular tube 51 can protect the side dental appliance 11, so that when the round rod 52 rotates, the side dental appliance 11 is not easily worn. When the connecting ring 31 is sleeved on the round rod 52 outside the side dental appliance 11 and the movable limit insertion rod 312 is moved, after a part of the limit insertion rod 312 is located in the side limit insertion hole 5201 and the other part is located in the guiding blind hole 3101, the connection between the guiding rod 3 and the round rod 52 can be realized. The guiding rod 3 combined with the round plate 53 can limit the relative position between the round rod 52 and the side dental appliance 11. At the same time, the round rod 52 can rotate in the side through hole 1102, so that the guiding rod 3 and the side dental appliance 11 are rotatably connected.

[0082] Refer to Figure 4 , Figure 5 and Figure 6 , a spring 311 is connected between the limit insertion rod 312 and the bottom of the guiding blind hole 3101. A thimble hole 3102 coaxial with the guiding blind hole 3101 is provided on the connecting ring 31, and the diameter of the thimble hole 3102 is smaller than the diameter of the limit insertion rod 312. The length of the limit insertion rod 312 is greater than the inner diameter of the connecting ring 31.

[0083] Refer to Figure 4 , Figure 5 and Figure 6, in the embodiment of the present application, when the connecting ring 31 is sleeved on the round rod 52, the limiting insertion rod 312 is pressed into the guiding blind hole 3101, and the attitude that the axis of the guiding blind hole 3101 is coplanar with the axis of the side limiting jack 5201 is maintained. As the connecting ring 31 moves on the round rod 52, when the guiding blind hole 3101 is coaxial with the side limiting jack 5201, under the elastic force of the spring 311, the limiting insertion rod 312 can automatically enter the side limiting jack 5201, thus facilitating the connection between the guiding rod 3 and the side dental appliance 11. When disassembling the guiding rod 3, take a thimble, insert the thimble into the thimble hole 3102, and use the thimble to push the limiting insertion rod 312 into the guiding blind hole 3101. Then, the guiding rod 3 can be moved away from the side dental appliance 11 first. After the thimble contacts the inner wall of the side limiting jack 5201, the thimble is removed. At this time, the limiting insertion rod 312 abuts against the side wall of the round rod 52, and the guiding rod 3 can be directly pulled off from the round rod 52. In other embodiments, when designing the thimble hole 3102, the inner diameter of the thimble hole 3102 is adapted to the needle of the syringe, so that the doctor can use the needle of the syringe as a thimble on the spot. Insert the needle of the syringe into the thimble hole 3102, and use the needle of the syringe to push the limiting insertion rod 312 into the guiding blind hole 3101. Then, the guiding rod 3 can be moved away from the side dental appliance 11 first. After the needle of the syringe contacts the inner wall of the side limiting jack 5201, the needle of the syringe is removed. At this time, the limiting insertion rod 312 abuts against the side wall of the round rod 52, and the guiding rod 3 can be directly pulled off from the round rod 52.

[0084] Refer to Figure 6 , a ball head 313 is provided at one end of the limiting insertion rod 312 away from the spring 311. In the embodiment of the present application, when the guiding blind hole 3101 faces the side limiting jack 5201 but is not completely coaxial yet, under the elastic force of the spring 311, when the ball head 313 can enter the side limiting jack 5201, at this time, when the connecting ring 31 is moved on the round rod 52, an obvious resistance can be felt. Then, the limit on the connecting ring 31 is released, so that the connecting ring 31 can have a relative displacement with the round rod 52. Under the elastic force of the spring 311, the ball head 313 can guide the limiting insertion rod 312 into the side limiting jack 5201, thereby limiting the relative position between the connecting ring 31 and the round rod 52, and facilitating the connection between the guiding rod 3 and the round rod 52.

[0085] Refer to Figure 6 and Figure 7 , a coaxial thimble slot 31301 is provided at one end of the limiting insertion rod 312 away from the spring 311. A radially arranged groove 5202 is provided at one end of the round rod 52 away from the round plate 53. Both ends of the groove 5202 penetrate through the side wall of the round rod 52, and the bottom of the groove 5202 communicates with the side limiting jack 5201. The diameter of the thimble hole 3102 is smaller than the width of the groove 5202.

[0086] Reference Figure 6 and Figure 7 In the embodiment of the present application, when the guide rod 3 needs to be disassembled, take a thimble, pass the thimble through the thimble hole 3102, and then insert it into the thimble slot 31301. Ensure that after the thimble abuts against the limit insertion rod 312, it is not easy to generate relative displacement with the limit insertion rod 312. Then, along the depth direction of the groove 5202, move the thimble and the guide rod 3 simultaneously. The thimble passes through the groove 5202, and the connecting ring 31 moves away from the round rod 52, so that the removal of the guide rod 3 can be realized, and the removal of the guide rod 3 is convenient.

[0087] Reference Figure 8 A coaxial screw hole 3201 is provided at one end of the hand-held rod 32 away from the connecting ring 31. A coaxial extension rod 33 is also provided at one end of the hand-held rod 32 away from the connecting ring 31. A screw 331 is provided at one end of the extension rod 33, and the screw 331 is screwed with the hand-held rod 32 through the screw hole 3201.

[0088] Reference Figure 8 In the embodiment of the present application, when the guide rod 3 needs to be lengthened, the extension rod 33 can be screwed with the guide rod 3 to increase the length of the guide rod 3. If the guide rod 3 does not need to be lengthened, a protective cover 34 is provided at one end of the hand-held rod 32 away from the connecting ring 31. The protective cover 34 is screwed with the hand-held rod 32 through the screw hole 3201 to protect the screw hole 3201.

[0089] The implementation principle of the lateral guide rod orthodontic appliance in the second embodiment of the present application is as follows:

[0090] When the guide rod 3 is installed, when the connecting ring 31 is sleeved on the round rod 52, the limit insertion rod 312 is pressed into the guiding blind hole 3101, and the attitude that the axis of the guiding blind hole 3101 is coplanar with the axis of the side limit jack 5201 is maintained. As the connecting ring 31 moves on the round rod 52, when the guiding blind hole 3101 is coaxial with the side limit jack 5201, the limit insertion rod 312 can automatically enter the side limit jack 5201 under the elastic force of the spring 311, so that the connection between the guide rod 3 and the side dental appliance 11 is convenient. When disassembling the guide rod 3, the needle of a syringe can be used as a thimble. Insert the thimble into the thimble hole 3102. After using the thimble to push the limit insertion rod 312 into the guiding blind hole 3101, the guide rod 3 can be moved in the direction away from the side dental appliance 11 first. After the thimble contacts the inner wall of the side limit jack 5201, the thimble is removed. At this time, the limit insertion rod 312 abuts against the side wall of the round rod 52, and the guide rod 3 can be directly pulled off from the round rod 52. The disassembly and assembly of the guide rod 3 are convenient and fast, and no additional tools are required to assist in the disassembly and assembly of the guide rod 3.

[0091] When a patient wears the appliance, the doctor holds two guiding rods 3 and adjusts the position of the upper dental appliance 1 to guide the upper dental appliance 1 to approach and fit over the teeth on the upper dental arch. Two side dental appliances 11 are respectively fitted over the left teeth and the right teeth on the upper dental arch. The arch expander 2 is used to adjust the distance between the two side dental appliances 11 so as to adjust the width of the upper dental appliance 1, and further enable the upper dental appliance 1 to better adapt to the oral environment of the patient.

[0092] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the art to which this application pertains. The terms "first", "second", "third" and similar terms used in the specification and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "a" or "an" do not denote a limitation of quantity, but rather denote the presence of at least one. The terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms such as "upper", "lower", "left" and "right" are only used to indicate the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0093] The above are all optional embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. A lateral guiding rod appliance, characterized in that: It includes an upper dental appliance (1), an arch expander (2) and two guiding rods (3). The upper dental appliance (1) includes two side dental appliances (11), and the two side dental appliances (11) are arranged oppositely at intervals; Arc-shaped connecting plates (12) are provided at opposite ends of the two side dental appliances (11), and the ends of the two arc-shaped connecting plates (12) away from the side dental appliances (11) are connected; The arch expander (2) is arranged between the two side dental appliances (11), and both ends are respectively connected to the two side dental appliances (11); The two guiding rods (3) are arranged oppositely to the two side dental appliances (11), and the guiding rods (3) are rotatably installed at one end of the side dental appliances (11) away from the arc-shaped connecting plate (12).

2. The side guide rod orthodontic appliance according to claim 1, wherein: Tooth receiving grooves (1101) are provided on the side dental appliances (11), and the tooth receiving grooves (1101) are arranged between the arc-shaped connecting plate (12) and the corresponding guiding rod (3); The arc-shaped connecting plate (12) is connected to the side dental appliance (11) at the notch of the tooth receiving groove (1101); The arch expander (2) is arranged between the arc-shaped connecting plate (12) and the bottom of the tooth receiving groove (1101).

3. The side guide rod appliance according to claim 2, characterized in that: A side through hole (1102) communicating with the tooth receiving groove (1101) is provided at one end of the side dental appliance (11) away from the arc-shaped connecting plate (12); The guiding rod (3) includes a connecting ring (31) and a hand-held rod (32), and one end of the hand-held rod (32) is connected to the side wall of the connecting ring (31); A first connecting member (4) is connected between the guiding rod (3) and the side dental appliance (11). The first connecting member (4) includes a bolt (41) and a nut (42). After the bolt (41) passes through the connecting ring (31) and the side through hole (1102) in sequence, it is screwed with the nut (42).

4. The side guide rod appliance according to claim 2, characterized in that: A side through hole (1102) communicating with the tooth receiving groove (1101) is provided at one end of the side dental appliance (11) away from the arc-shaped connecting plate (12); A second connecting member (5) is connected between the guiding rod (3) and the side dental appliance (11). The second connecting member (5) includes a round rod (52) and a round plate (53), and the round rod (52) is arranged in the side through hole (1102); The round plate (53) is arranged in the tooth receiving groove (1101) and is coaxially connected to the first end of the round rod (52); A radially arranged side limit jack (5201) is provided on the side wall of the round rod (52), and the side limit jack (5201) is arranged outside the side dental appliance (11); The guiding rod (3) includes a connecting ring (31) and a hand-held rod (32). The first end of the hand-held rod (32) is connected to the side wall of the connecting ring (31), and the connecting ring (31) is sleeved on the round rod (52) outside the side dental appliance (11); A radially arranged guiding blind hole (3101) is provided on the inner hole wall of the connecting ring (31), and the guiding blind hole (3101) is coaxial with the first end of the hand-held rod (32). A coaxial limit insertion rod (312) is provided in the guiding blind hole (3101), and in the length direction of the guiding blind hole (3101), the limit insertion rod (312) is slidably connected to the hand-held rod (32), and the length of the limit insertion rod (312) is less than the length of the guiding blind hole (3101); One end of the limit insertion rod (312) away from the bottom of the guiding blind hole (3101) is used to be inserted into the side limit insertion hole (5201).

5. The side guide rod orthodontic appliance according to claim 4, characterized in that: A spring (311) is connected between the limit insertion rod (312) and the bottom of the guiding blind hole (3101); A thimble hole (3102) coaxial with the guiding blind hole (3101) is provided on the connecting ring (31), and the diameter of the thimble hole (3102) is less than the diameter of the limit insertion rod (312); The length of the limit insertion rod (312) is greater than the inner diameter of the connecting ring (31).

6. The side guide rod orthodontic appliance according to claim 5, characterized in that: A ball head (313) is provided at one end of the limit insertion rod (312) away from the spring (311).

7. The side guide rod orthodontic appliance according to claim 5, characterized in that: A coaxial thimble slot (31301) is provided at one end of the limit insertion rod (312) away from the spring (311); A radially arranged groove (5202) is provided at one end of the round rod (52) away from the round plate (53), both ends of the groove (5202) penetrate through the side wall of the round rod (52), and the bottom of the groove (5202) communicates with the side limit insertion hole (5201); The diameter of the thimble hole (3102) is less than the width of the groove (5202).

8. The side guiding rod orthodontic appliance according to claim 5, characterized in that: A coaxial screw hole (3201) is provided at one end of the hand-held rod (32) away from the connecting ring (31); A coaxial extension rod (33) is further provided at one end of the hand-held rod (32) away from the connecting ring (31), a screw rod (331) is provided at one end of the extension rod (33), and the screw rod (331) is screwed to the hand-held rod (32) through the screw hole (3201).

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