Traction device used in combination with extraoral bow

Abstract

The utility model discloses a traction device used in combination with an extraoral arch, which belongs to the technical field of orthodontics, and is characterized in that a body is mounted on the extraoral arch and comprises an isolation part and a fixing plate, a traction hook is arranged in the middle of the fixing plate, a clamping piece is arranged at the end of the fixing plate, and the traction hook is connected with the isolation part. The clamping piece comprises an L-shaped rod and a hoop, the hoop is connected with the inner bow, and the traction hook and the clamping piece are opposite in direction. The device is convenient to disassemble and assemble, and can assist an extraoral arch in lip regulation and control of a premolar section or a canine section of a dental arch.

Description

Technical Field

[0001] The utility model relates to the technical field of oral orthodontics, in particular to a traction device used in combination with an extraoral bow. Background Art

[0002] In orthodontic treatment, the maxillary premolar or canine segment should normally match the normal mandibular dental arch, be in close contact with the corresponding mandibular dental arch, and have a normal overbite and overjet relationship. When the maxillary premolar or canine is lingually inclined or the dental arch is narrow, the maxillary dental arch and the mandibular dental arch will not match, which can easily cause sagittal misalignment of the upper and lower dental arches, and then cause problems such as mandibular retraction and deep overjet.

[0003] In order to prevent the forward movement of the supported molars, an extraoral bow is often used to obtain extramaxillary support. However, the function of the extraoral bow is relatively single, and force is only applied to the supported molars or molar segments. In clinical practice, when the molars need support and the premolar segments or canine segments need dental expansion, support pins are often required. However, support obtained with an extraoral bow is often used in children or adolescent patients who are not suitable for implantation of support pins. At this time, the use of a single-function extraoral bow device cannot implement lip-directed regulation of the premolar segments or canine segments. Therefore, a traction device used in conjunction with an extraoral bow is needed. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a traction device used in conjunction with an extraoral bow, which is easy to disassemble and assemble, and can assist the extraoral bow in regulating the lip direction of the premolar segment or canine segment of the teeth.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: a traction device used in conjunction with an extraoral bow, the main body of which is installed on the extraoral bow, including an isolation part and a fixed plate, a traction hook is provided in the middle of the fixed plate, a clamping piece is provided at the end of the fixed plate, the clamping piece includes an L-shaped rod and a clamp, the clamp is connected to the inner bow, and the traction hook and the clamping piece are in opposite directions.

[0006] In some embodiments, the extraoral arch comprises an inner arch and an outer arch.

[0007] In some embodiments, the towing hook includes a connecting rod and a ball.

[0008] In some embodiments, the isolation portion is curved.

[0009] In some embodiments, the fixing plate is made of acrylic plastic.

[0010] In some embodiments, the clamp is a semi-cylindrical hollow iron pipe.

[0011] In summary, the utility model has the following beneficial effects:

[0012] The utility model can quickly install the traction device on the inner arch of the extraoral arch through the clamp of the clamping part. The operation is simple and convenient, and there is no need to perform complicated installation operations. The speed of disassembly and assembly is improved, and the speed of force adjustment on the patient's teeth is accelerated. The entire traction device is pulled to apply a force to the labial direction of the pulled teeth, thereby assisting the extraoral arch in regulating the labial direction of the premolar segment or the canine segment of the teeth. The utility model has a small size and low foreign body sensation, and can meet the direction and space requirements of the traction force unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the utility model;

[0014] Figure 2 It is a schematic diagram of the working state of the utility model.

[0015] In the figure: 11, inner bow; 12, outer bow; 2, main body; 21, isolation part; 22, fixing plate; 23, traction hook; 231, connecting rod; 232, ball; 24, clamping piece; 241, L-shaped rod; 242, clamp. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-2A traction device used in conjunction with an extraoral bow, wherein a main body 2 is mounted on the extraoral bow, and comprises an isolating portion 21 and a fixing plate 22, a traction hook 23 is provided in the middle of the fixing plate 22, a clamping member 24 is provided at the end of the fixing plate 22, the clamping member 24 comprises an L-shaped rod 241 and a clamp 242, the clamp 242 is connected to the inner bow 11, the traction hook 23 and the clamping member 24 face oppositely, the traction hook 23 comprises a connecting rod 231 and a ball 232, and the extraoral bow comprises an inner bow 11 and an outer bow 12. First, the doctor installs the traction device on the inner arch 11 of the extraoral arch on the patient's teeth. The installation position is the premolar section or canine section of the patient's teeth. During installation, the clamp 242 of the clamp 24 is clamped on the inner arch 11. The clamp 24 is provided with two, which can strengthen the fixation with the inner arch 11. The two clamps 242 are both semi-cylindrical hollow iron tubes. When the semi-cylindrical hollow iron tubes are connected to the inner arch 11, they can be quickly fixed on the inner arch 11 through their own deformation, which is convenient for doctors to install and disassemble, improves the efficiency of disassembly and assembly, and speeds up the force adjustment of the patient's teeth. The L-shaped clamp 24 The rod 241 can improve the connection strength between the clamping member 24 and the fixing plate 22. When in use, the doctor only needs to hang the traction rubber chain on the traction hook 23, and then limit the rubber chain by the ball 232 of the traction hook 23. The doctor can pull the entire traction device by pulling the traction hook 23, and the traction device applies a pulling force to the inner arch 11 of the extraoral bow, thereby assisting the extraoral bow to perform lip-adjusting regulation on the patient's premolar segment or canine segment, thereby achieving an auxiliary effect for the doctor to perform oral orthodontic treatment. The doctor can determine the position of the traction device installed on the inner arch 11 according to the need for tooth movement, thereby adjusting the force on the teeth. The utility model quickly installs the traction device on the inner arch 11 of the extraoral arch through the clamp 242 of the clamping member 24. The operation is simple and convenient, and there is no need to perform complicated installation operations. The speed of disassembly and assembly is improved, and the speed of force adjustment on the patient's teeth is accelerated. The traction hook 23 pulls the inner arch 11, so that the entire traction device applies a force to the labial direction of the pulled teeth, thereby assisting the extraoral arch in regulating the labial direction of the premolar segment or the canine segment of the teeth. The utility model has a small size and a low foreign body sensation, and can meet the direction and space requirements of the traction force unit.

[0018] In some embodiments, the isolation portion 21 is curved. When the doctor installs the traction device on the inner arch 11 of the extraoral arch in the patient's mouth, since the patient's oral mucosa and teeth will be in contact with each other, the isolation portion 21 can separate the patient's oral mucosa from the traction device to prevent mutual contact, thereby preventing the patient's oral mucosa from being damaged by the traction device and causing oral problems.

[0019] In some embodiments, the fixing plate 22 is made of acrylic plastic. When performing orthodontic treatment on a patient, the traction device needs to be installed on the extraoral arch of the patient's teeth. Acrylic plastic has crystal-like transparency, high light transmittance, soft light, clear vision, excellent weather resistance, high surface hardness and surface gloss, wear resistance close to that of aluminum, good stability, and will not cause any adverse effects on the patient's oral cavity. It is a very suitable material for oral treatment and avoids harming the patient's oral cavity during treatment.

[0020] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A traction device used in conjunction with an extraoral bow, wherein the body (2) is mounted on the extraoral bow, and wherein: It comprises an isolation portion (21) and a fixing plate (22), and the extraoral arch comprises an inner arch (11) and an outer arch (12); A traction hook (23) is provided in the middle of the fixing plate (22), and a clamping piece (24) is provided at the end of the fixing plate (22). The clamping piece (24) comprises an L-shaped rod (241) and a clamp (242). The clamp (242) is connected to the inner bow (11). The traction hook (23) and the clamping piece (24) face in opposite directions.

2. A traction device used in combination with an extraoral bow according to claim 1, characterized in that: The traction hook (23) comprises a connecting rod (231) and a round ball (232).

3. A traction device used in combination with an extraoral bow according to claim 1, characterized in that: The isolation portion (21) is curved.

4. A traction device used in combination with an extraoral bow according to claim 1, characterized in that: The fixing plate (22) is made of acrylic plastic.

5. A traction device used in combination with an extraoral bow according to claim 4, characterized in that: The clamp (242) is a semi-cylindrical hollow iron pipe.

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