Traction device for mandibular retraction appliance

Abstract

The utility model provides a mandibular retraction appliance traction device, which comprises an appliance main body fixed on an upper jaw and four groups of orthodontic bands, the four groups of orthodontic bands are respectively fixed on an upper molar and a lower molar which are symmetrically arranged, the orthodontic bands and the appliance main body are provided with mounting sleeves, and the mounting sleeves are sleeved on the orthodontic bands and the appliance main body. Detachable traction hooks are arranged on the mounting sleeve, the opening directions of the traction hooks arranged on the orthodontic belt ring and the traction hooks arranged on the appliance main body are opposite, elastic rings are arranged on two sides of the appliance main body, and the elastic rings are arranged on three groups of traction hooks in a sleeving manner. According to the device, the elastic ring is matched with the traction hook, so that the upper and lower teeth of a child patient are actively occluded, and the lower jaw of the child patient can be positioned at a protraction position, thereby effectively avoiding the situation that the child patient cannot actively occlude in a sleep state, and leading the lower jaw forwards, so that the tooth correction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth correction, in particular to a traction device for a mandibular retraction appliance. Background Art

[0002] Mandibular retrognathia is a malocclusion characterized by mandibular recession caused by insufficient mandibular development or posterior mandibular position and incomplete function of mandibular protrusion muscles. It is more common in children and causes the chin to appear shorter or retracted.

[0003] Clinically, children with suitable conditions can be treated with braces under a doctor's guidance. These appliances apply gentle, continuous force to guide the mandible toward its normal growth position. A commonly used removable appliance is the twin block appliance (also known as a double-guided appliance). This appliance consists of two parts, the upper and lower jaw pads, which are adjusted to form a pair of occlusal slopes.

[0004] When a child wears the braces, the upper and lower jaws occlude. The upper and lower jaws close together through the inclined surfaces of the jaw pads, protruding the mandible. The muscle force generated by mandibular protrusion is then transmitted through the braces to the dentition and jaw, creating continuous active stimulation and promoting growth. During treatment, the adjustment of the jaw pads promotes the elongation of the lower molars, reconstructing the posterior occlusion.

[0005] In existing technology, when children wear braces, the upper and lower jaws must actively engage, closing the inclined surfaces of the upper and lower jaw pads to position the mandible forward. While sleeping, the chewing muscles are relaxed, making active engagement difficult. Without contact and closure between the inclined surfaces of the brace, the mandible cannot be guided forward. After the brace is adjusted, the lower molars lose contact with the maxillary antagonists, leading to physiological natural elongation, which is relatively slow.

[0006] Therefore, in view of this, a mandibular retrusion appliance traction device is proposed to solve the above technical problems. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the present invention proposes a traction device for mandibular retrusion orthodontic appliance to solve the technical problems raised in the above background technology, that is, when the child is sleeping at night, the chewing muscles are in a relaxed state, making it difficult to achieve active bite, and the existing orthodontic appliance inclined surfaces do not contact and close, and cannot achieve the function of guiding the mandible forward.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mandibular retraction appliance traction device, comprising:

[0009] The main body of the appliance is fixed on the upper jaw;

[0010] Four sets of orthodontic bands are provided and fixed on two symmetrical upper and lower molars respectively. The orthodontic bands and the appliance body are both provided with mounting sleeves.

[0011] The traction hooks are provided in the same number as the mounting sleeves and are detachably connected to the plurality of mounting sleeves, wherein the opening direction of the traction hooks provided on the orthodontic band ring is opposite to that of the traction hooks provided on the appliance body; and

[0012] There are two groups of elastic rings, which are respectively arranged on both sides of the orthodontic appliance body and are sleeved on three groups of the traction hooks.

[0013] In a preferred embodiment, a plurality of groups of the mounting sleeves are fixedly connected to the appliance body and the orthodontic band ring respectively.

[0014] In a preferred embodiment, a mounting rod is provided at the end of the traction hook, and the mounting rod is passed through the mounting sleeve and connected thereto via a fixing assembly.

[0015] In a preferred embodiment, the fixing assembly includes an elastic sheet, a mounting groove is provided on the mounting rod, one end of the elastic sheet is fixedly connected to the mounting groove, and the other end extends out of the mounting groove, and a through-to-the-outside card slot is provided on the mounting sleeve, and the end of the elastic sheet is clamped in the card slot.

[0016] In a preferred embodiment, an elastic member is provided between the end of the mounting rod and the mounting sleeve, and the end of the elastic member is fixedly connected to the mounting sleeve.

[0017] In a preferred embodiment, a limiting piece is provided at the end of the elastic piece, a limiting slot is provided on one side of the installation slot, and the limiting piece is movably mounted in the limiting slot.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When the device is in use, the main body of the orthodontic appliance is fixed to the upper jaw of the child through a traditional installation method, and the orthodontic band is fixed to the two upper molars and the lower molars of the child. The two sets of elastic rings are passed around the three sets of traction hooks on one side in turn, so that the elastic rings are arranged in a triangle. The force applied by the elastic rings to the traction hooks in the direction perpendicular to the tooth arrangement surface can make the upper and lower teeth of the child actively bite, and the force applied in the direction parallel to the tooth arrangement surface can make the lower jaw of the child be in a protruding position, thereby effectively preventing the child from being unable to actively bite when sleeping, and guiding the lower jaw forward to improve the effect of dental correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 A side view of a traction device for a mandibular retrusion appliance provided by the present invention;

[0022] Figure 2 This is a top view of a traction device for a mandibular retrusion appliance according to the present invention;

[0023] Figure 3 The utility model is a cross-sectional view of a mounting sleeve and its internal parts in a traction device of a mandibular retraction appliance.

[0024] Reference numerals:

[0025] 101. Orthodontic appliance body; 102. Orthodontic band; 103. Mounting sleeve; 104. Clamping slot;

[0026] 201, traction hook; 202, mounting rod; 203, mounting slot; 204, limiting slot; 205, elastic member;

[0027] 301, elastic piece; 302, limiting piece;

[0028] 401. Elastic ring. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technicians in this field can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0030] Example:

[0031] like Figure 1 、 2 As shown, the utility model provides a mandibular retraction appliance traction device, including an appliance main body 101 fixed on the maxilla and four groups of orthodontic band rings 102, the four groups of orthodontic band rings 102 are respectively fixed on the upper molars and lower molars in two symmetrical positions, the orthodontic band rings 102 and the appliance main body 101 are respectively provided with mounting sleeves 103, the mounting sleeves 103 are provided with detachable traction hooks 201, the traction hooks 201 provided on the orthodontic band rings 102 are opposite to the opening direction of the traction hooks 201 provided on the appliance main body 101, and also include two groups of elastic rings 401, the two groups of elastic rings 401 are respectively arranged on both sides of the appliance main body 101, and are sleeved on three of the traction hooks 201.

[0032] During use, the appliance body 101 is fixed on the upper jaw to correct the teeth, wherein the appliance body 101 can select a traditional double-guide plate appliance, and then the four sets of orthodontic band rings 102 are respectively fixed on the upper molars and lower molars in two symmetrical positions, and finally the elastic ring 401 is sleeved on the three sets of traction hooks 201 on one side, so that the elastic ring 401 is arranged in a triangular shape, and the pulling ability of the elastic ring 401 enables the child to actively bite and put the child's mandible in a protruding position. It can be understood that, in some embodiments, multiple sets of mounting sleeves 103 are respectively fixedly connected to the appliance body 101 and the orthodontic band ring 102, and the mounting sleeves 103 and the appliance body 101 and the orthodontic band ring 102 can be fixed by welding to enhance the stability of the device structure.

[0033] like Figure 1 、 3 As shown, in this embodiment, a mounting rod 202 is provided at the end of the towing hook 201. The mounting rod 202 is inserted into the mounting sleeve 103 and connected thereto via a fixing assembly. The fixing assembly includes an elastic piece 301. The mounting rod 202 defines a mounting slot 203. One end of the elastic piece 301 is fixedly connected to the mounting slot 203, and the other end extends outside the mounting slot 203. The mounting sleeve 103 defines a through-hole 104, and the end of the elastic piece 301 is fixedly mounted in the slot 104.

[0034] When installing the towing hook 201, the mounting rod 202 can be inserted into the mounting sleeve 103. During the insertion process, the elastic piece 301 can be pushed by the end of the mounting sleeve 103 to retract into the mounting slot 203. The connection between the elastic piece 301 and the mounting slot 203 can also be secured by welding. When the mounting rod 202 is fully inserted into the mounting sleeve 103, the elastic piece 301's reset ability causes the elastic piece 301 to snap into the retaining slot 104, effectively locking the mounting rod 202 in place and preventing it from falling off the mounting sleeve 103. Furthermore, by inserting the rod into the retaining slot 104 and pushing the elastic piece 301, the elastic piece 301 can be retracted into the mounting slot 203, facilitating the removal of the towing hook 201. This makes it easier to remove the towing hook 201 and the elastic ring 401 when no longer in use, thereby improving the practicality and applicability of the device.

[0035] like Figure 3As shown, in this embodiment, an elastic member 205 is provided between the end of the mounting rod 202 and the mounting sleeve 103, and the end of the elastic member 205 is fixedly connected to the mounting sleeve 103. After the mounting rod 202 is inserted, the elastic member 205 can cause the elastic piece 301 to abut against the slot 104, thereby preventing the mounting rod 202 from loosening in the mounting sleeve 103. In addition, during the process of removing the mounting rod 202, when the elastic piece 301 is retracted into the mounting slot 203 again, the elastic member 205 can eject the mounting rod 202 a certain distance, making the removal of the towing hook 201 more convenient.

[0036] like Figure 3 As shown, in this embodiment, a limit piece 302 is provided at the end of the elastic piece 301, and a limit slot 204 is provided on one side of the mounting slot 203. The limit piece 302 is movably locked in the limit slot 204. The cooperation between the limit piece 302 and the limit slot 204 can prevent the elastic piece 301 from moving too much and thus causing a large deformation. This prevents the end of the limit piece 302 from protruding outside the locking slot 104 and scratching the child's mouth, thereby improving the stability of the internal structure of the device.

[0037] Specific usage and beneficial effects of this utility model:

[0038] When the device is in use, the orthodontic appliance body 101 is fixed to the upper jaw of the child through a traditional installation method, and the orthodontic band 102 is fixed to the two upper molars and the lower molars of the child, and the two groups of elastic rings 401 are passed around the three groups of traction hooks 201 on one side in turn, so that the elastic rings 401 are arranged in a triangular shape. The force applied by the elastic rings 401 to the traction hooks 201 in a direction perpendicular to the tooth arrangement surface can make the upper and lower teeth of the child actively bite, and the force applied in a direction parallel to the tooth arrangement surface can make the lower jaw of the child be in a protruding position, thereby effectively preventing the child from being unable to actively bite when sleeping, and guiding the lower jaw forward to improve the effect of dental correction.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. It is obvious to those skilled in the art that modifications or improvements can be made based on the present invention. Therefore, such modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A mandibular retraction appliance traction device, characterized in that: Includes: The appliance body (101) is fixed on the upper jaw; Four groups of orthodontic bands (102) are provided and are fixed on two symmetrical upper molars and two lower molars respectively. The orthodontic bands (102) and the appliance body (101) are both provided with mounting sleeves (103); The traction hooks (201) are provided in the same number as the mounting sleeves (103) and are detachably connected to the plurality of mounting sleeves (103), and the opening directions of the traction hooks (201) provided on the orthodontic band ring (102) and the traction hooks (201) provided on the appliance body (101) are opposite to each other; and There are two groups of elastic rings (401), which are respectively arranged on both sides of the orthodontic appliance body (101) and are sleeved on three groups of the traction hooks (201).

2. The mandibular retrusion appliance traction device according to claim 1, characterized in that: A plurality of sets of the mounting sleeves (103) are fixedly connected to the appliance body (101) and the orthodontic band ring (102) respectively.

3. The mandibular retrusion appliance traction device according to claim 1, characterized in that: The end of the traction hook (201) is provided with a mounting rod (202), and the mounting rod (202) is passed through the mounting sleeve (103) and connected thereto via a fixing assembly.

4. The mandibular retrusion appliance traction device according to claim 3, characterized in that: The fixing assembly comprises an elastic sheet (301), a mounting groove (203) is provided on the mounting rod (202), one end of the elastic sheet (301) is fixedly connected to the mounting groove (203), and the other end extends out of the mounting groove (203), the mounting sleeve (103) is provided with a through-going slot (104), and the end of the elastic sheet (301) is clamped in the slot (104).

5. The mandibular retrusion appliance traction device according to claim 4, characterized in that: An elastic member (205) is provided between the end of the installation rod (202) and the installation sleeve (103), and the end of the elastic member (205) is fixedly connected to the installation sleeve (103).

6. The mandibular retrusion appliance traction device according to claim 4, characterized in that: A limiting piece (302) is provided at the end of the elastic piece (301), a limiting slot (204) is provided on one side of the installation slot (203), and the limiting piece (302) is movably mounted in the limiting slot (204).

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