3D printing embedded tooth retractor

Abstract

The utility model relates to the technical field of oral clinical medicine, in particular to a 3D printing embedded tooth tractor which comprises a fixing part and a traction assembly, the traction assembly is connected with the fixing part, the traction assembly comprises a traction rod, a recovery torsion spring and a traction roller, the traction rod is arranged on one side of the fixing part, and the recovery torsion spring is arranged on the other side of the fixing part. The recovery torsion spring is arranged at the end, away from the fixing piece, of the traction rod, the traction roller is arranged on the side, away from the fixing piece, of the recovery torsion spring, and a connecting column is arranged on the cylindrical face of the traction roller. After the recovery torsion spring enters a tightened state and the two ends of the traction coil are connected with the connecting column and the teeth respectively, force application to the traction roller is stopped, the recovery torsion spring can continuously apply force to the traction roller to drive the traction roller to roll in the direction away from the teeth, and the effect of continuously pulling the teeth is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral clinical medicine, in particular to a 3D printed impacted tooth traction device. Background Art

[0002] Impacted teeth refer to teeth that have passed the eruption period but are still trapped in the jaw tissue and have not erupted. The incidence rate is relatively high, about 25% to 50%. They often occur in the third molars (incidence rate 3.63% to 31.98%), maxillary canines (incidence rate 0.77% to 7.92%), maxillary incisors (incidence rate 0.06% to 0.2%) and mandibular canines (incidence rate 0.92% to 5.1%). Impacted teeth are a common cause of malocclusion. If not treated in time, they will affect the adjacent important anatomical structures or be forced to be extracted due to abnormal root development, affecting the chewing function and aesthetic appearance. In severe cases, it can affect the patient's pronunciation and appearance.

[0003] Impacted tooth traction surgery is a surgical method for treating impacted teeth. This surgery is usually suitable for patients whose impacted teeth cannot grow normally due to insufficient space in the jaw or interference from other teeth. During the impacted tooth traction surgery, the doctor will install a special traction device inside or outside the mouth. This device is usually used inside the mouth. Through the metal rings and coils fixed on the teeth, the teeth are pulled to achieve the effect of repositioning the teeth.

[0004] After the installation of the traction device is completed in the existing impacted tooth surgery, the teeth will move in the traction direction after a period of traction, which will cause the coil used for traction to return from a tight state to a loose state, and thus lose the effect of traction on the teeth. Therefore, after the operation is completed, the user still needs to go to the hospital for follow-up visits many times to adjust the coil from a loose state to a tight state to ensure the traction effect on the teeth. The user is required to go to the hospital for adjustment many times, which takes up much of the user's time and affects the rhythm of life.

[0005] The purpose of the utility model is to solve the above defects and provide a 3D printed impacted tooth traction device. Utility Model Content

[0006] The purpose of the utility model is achieved in the following way: a 3D printed embedded tooth traction device, comprising a fixing part and a traction assembly, the traction assembly is connected to the fixing part, the traction assembly comprises a traction rod, a recovery torsion spring and a traction roller, the traction rod is arranged on one side of the fixing part, the recovery torsion spring is arranged on the end of the traction rod away from the fixing part, the traction roller is arranged on the side of the recovery torsion spring away from the fixing part, a connecting column is arranged on the cylindrical surface of the traction roller, and a limiting ball is arranged on the end of the connecting column away from the traction roller.

[0007] In the above description, a further solution is provided, in which a mounting column is provided at the end of the traction rod away from the fixing part, and a sleeve matching the recovery torsion spring is provided at one end of the mounting column close to the traction rod, and the sleeve and the mounting column are an integrated structure; the sleeve is used to provide installation of the recovery torsion spring and provide a limiting effect at the same time.

[0008] In the above description, a further scheme is provided, in which a limit block is provided at one end of the mounting column away from the traction rod, a locking screw is provided at one end of the limit block away from the mounting column, a threaded hole matching the locking screw is provided on the end face of the mounting column close to the limit block, a slot is provided on the end face of the locking screw away from the limit block, and the end of the locking screw away from the slot extends toward the direction of the traction rod, the locking screw is used to limit the limit block, and the limit block is used to limit the traction roller.

[0009] In the above description, a further solution is provided in which a fixing plate is provided on one side of the sleeve, the side of the fixing plate close to the traction rod is fixedly connected to the traction rod, and the side of the fixing plate close to the recovery torsion spring is connected to the recovery torsion spring; the fixing plate is used to cooperate with the recovery torsion spring to ensure the traction effect.

[0010] In the above description, a further scheme is made, in which a linkage plate is provided on the end face of the sleeve away from the traction rod, the linkage plate and the traction roller are an integrated structure, the side of the linkage plate close to the traction roller is in contact with the traction roller, the middle part of the linkage plate and the traction roller are provided with an avoidance position matching the mounting column, and the side of the linkage plate close to the recovery torsion spring is detachably connected to the recovery torsion spring; the linkage plate is used to connect with the recovery torsion spring, and the recovery torsion spring can rotate the traction roller through the linkage plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is that by arranging a recovery torsion spring and a traction roller on the traction rod, when performing traction surgery, the doctor can twist the traction roller to rotate one circle in the direction of the tooth, drive the recovery torsion spring to rotate, and after the recovery torsion spring enters a taut state, the two ends of the traction coil are respectively connected to the connecting column and the tooth. Then, the doctor can stop applying force to the traction roller, and the taut recovery torsion spring will continue to apply force to the traction roller, driving the traction roller to roll in the direction away from the tooth, thereby achieving the effect of continuous traction of the tooth until the tooth is completely repositioned, that is, the recovery torsion spring returns to a relaxed state. The utility model does not require the user to go to the hospital many times to adjust the traction coil, thereby reducing the time taken to go to the hospital and reducing the impact on the rhythm of life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of the three-dimensional structure of a 3D printed impacted tooth traction device of the utility model;

[0013] Figure 2This is a schematic diagram of the structure decomposition of a 3D printed impacted tooth traction device of the utility model;

[0014] Figure 3 It is a cross-sectional view of a 3D printed impacted tooth traction device of the utility model;

[0015] In the figure: 1-fixed part, 2-traction rod, 3-recovery torsion spring, 4-traction roller, 5-connecting column;

[0016] 6-limiting ball, 7-mounting column, 8-sleeve, 9-limiting block, 10-locking screw, 11-threaded hole;

[0017] 12-slot, 13-fixed plate, 14-linkage plate, 15-avoidance position. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] For this example, please refer to Figure 1-Figure 3 A 3D printed impacted tooth traction device is specifically implemented, including a fixing part 1 and a traction assembly, the traction assembly is connected to the fixing part 1, the traction assembly includes a traction rod 2, a recovery torsion spring 3 and a traction roller 4, the traction rod 2 is arranged on one side of the fixing part 1, the recovery torsion spring 3 is arranged on the end of the traction rod 2 away from the fixing part 1, the traction roller 4 is arranged on the side of the recovery torsion spring 3 away from the fixing part 1, a connecting column 5 is arranged on the cylindrical surface of the traction roller 4, and a limiting ball 6 is arranged on the end of the connecting column 5 away from the traction roller 4.

[0020] A mounting post 7 is provided at the end of the traction rod 2 away from the fixing member 1 , and a sleeve 8 matching the recovery torsion spring 3 is provided at one end of the mounting post 7 close to the traction rod 2 , and the sleeve 8 and the mounting post 7 are an integrated structure.

[0021] A limit block 9 is provided at the end of the mounting column 7 away from the traction rod 2, and a locking screw 10 is provided at the end of the limit block 9 away from the mounting column 7. A threaded hole 11 matching the locking screw 10 is provided on the end surface of the mounting column 7 close to the limit block 9, and a straight groove 12 is provided on the end surface of the locking screw 10 away from the limit block 9, and the end of the locking screw 10 away from the straight groove 12 extends toward the direction of the traction rod 2.

[0022] A fixing plate 13 is provided on one side of the sleeve 8, and the side of the fixing plate 13 close to the traction rod 2 is fixedly connected to the traction rod 2, and the side of the fixing plate 13 close to the recovery torsion spring 3 is connected to the recovery torsion spring 3. A linkage plate 14 is provided on the end face of the sleeve 8 away from the traction rod 2. The linkage plate 14 and the traction roller 4 are an integrated structure, and the side of the linkage plate 14 close to the traction roller 4 is in contact with the traction roller 4. The middle parts of the linkage plate 14 and the traction roller 4 are provided with an avoidance position 15 matching the mounting column 7, and the side of the linkage plate 14 close to the recovery torsion spring 3 is detachably connected to the recovery torsion spring 3.

[0023] The utility model uses a method as follows: when in use, the doctor can drive the traction roller 4 and the recovery torsion spring 3 to rotate one circle toward the direction of the teeth by twisting the linkage plate 14. After the recovery torsion spring 3 enters a taut state, one end of the traction coil is connected to the connecting column 5 and the connecting ball provided on the traction roller 4, and the other end of the traction coil is connected to the teeth. The doctor can stop applying force to the linkage plate 14. After the torsional force is lost, the taut recovery torsion spring 3 will drive the traction roller 4 and the linkage plate 14 to rotate in a direction away from the teeth, thereby achieving the effect of continuous traction on the teeth until the teeth are completely repositioned, that is, the recovery torsion spring 3 returns to a relaxed state.

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] In addition, in the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A 3D printed impacted tooth traction device, comprising a fixing member and a traction assembly, wherein the traction assembly is connected to the fixing member, and is characterized in that: The traction assembly includes a traction rod, a recovery torsion spring and a traction roller. The traction rod is arranged on one side of the fixing member, the recovery torsion spring is arranged on the end of the traction rod away from the fixing member, the traction roller is arranged on the side of the recovery torsion spring away from the fixing member, a connecting column is arranged on the cylindrical surface of the traction roller, and a limiting ball is arranged on the end of the connecting column away from the traction roller.

2. A 3D printed impacted tooth traction device according to claim 1, characterized in that: The end of the traction rod away from the fixing piece is provided with a mounting column, and the end of the mounting column close to the traction rod is provided with a sleeve matching the recovery torsion spring, and the sleeve and the mounting column are an integrated structure.

3. A 3D printed impacted tooth traction device according to claim 2, characterized in that: A limit block is provided at one end of the mounting column away from the traction rod, a locking screw is provided at one end of the limit block away from the mounting column, a threaded hole matching the locking screw is provided on the end surface of the mounting column close to the limit block, a slot is provided on the end surface of the locking screw away from the limit block, and the end of the locking screw away from the slot extends toward the direction of the traction rod.

4. A 3D printed impacted tooth traction device according to claim 2, characterized in that: A fixing plate is provided on one side of the sleeve, and a side of the fixing plate close to the traction rod is fixedly connected to the traction rod, and a side of the fixing plate close to the recovery torsion spring is connected to the recovery torsion spring.

5. The 3D printed impacted tooth traction device according to claim 2, characterized in that: A linkage plate is provided on the end face of the sleeve away from the traction rod. The linkage plate and the traction roller are an integrated structure. The side of the linkage plate close to the traction roller is in contact with the traction roller. The middle parts of the linkage plate and the traction roller are both provided with avoidance positions matching the mounting column. The side of the linkage plate close to the recovery torsion spring is detachably connected to the recovery torsion spring.

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