Bone orthopedic device for maxillary hypoplasia

Abstract

The invention belongs to the technical field of oral appliances, and particularly relates to a bony orthopedic device for maxillary hypoplasia, which comprises a palatal side base plate, connecting bodies are arranged on two sides of the palatal side base plate, and each connecting body comprises a connecting rod and an arc-shaped rod; the fixator comprises a band ring and a sliding block, the band ring is sleeved on the teeth, the palate side of the band ring is fixedly connected with the sliding block, and the sliding block is in sliding connection with the arc-shaped rod. The sliding block moves on the arc-shaped rod to further drive the belt ring to move and adjust the position of the belt ring corresponding to the teeth, so that the situation that the orthodontic device cannot be fixedly mounted due to the fact that premolar deciduous teeth are loosened and early lost or premolar permanent teeth are inadequately germinated in children of the right age is avoided, the teeth are sleeved with the belt ring, the screw is rotated, the limiting block moves towards the inner side, and the orthodontic device cannot be fixedly mounted. And the limiting block is attached to the teeth for limiting and fixing, so that mesial movement of the molars is avoided, and the negative dental effect is further avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of oral appliances, in particular to a bony orthopedic device for maxillary underdevelopment. Background Art

[0002] Skeletal Class III malocclusion can be caused by sagittal underdevelopment of the maxilla, which often manifests as anterior crossbite and facial depression, which seriously affects the patient's oral health, facial aesthetics and mental health. Sagittal underdevelopment of the maxilla can be treated by applying a maxillary protraction device to the maxilla to promote sagittal growth and development of the maxilla.

[0003] In the prior art, announcement No. 202022030700.9 discloses a maxillary anterior traction intraoral appliance, including a belt ring, two of which are respectively placed on the outside of the first molars on both sides of the maxilla, and the belt ring is connected to the palatal base through a connector in the oral cavity, and two traction hooks are provided at the other end of the palatal base. The two traction hooks are used in conjunction with the maxillary anterior traction frame to complete the maxillary anterior traction effect of skeletal crossbite.

[0004] In the above patent, the traction effect is extended to the front of the oral cavity by hanging an elastic traction leather ring on the palatal traction hook and the maxillary front traction frame, so that two belt rings and the palatal base can be formed as support, and then the maxillary front traction is completed in conjunction with the maxillary front traction frame, and the maxillary front traction is effectively performed to solve the skeletal crossbite. However, when the orthopedic device is used to treat patients, most of the patients who are clinically treated are in the tooth replacement period, and most of the deciduous molars are lost early, and the first premolars have not erupted, which is difficult to fix. Therefore, a skeletal orthopedic device for maxillary underdevelopment is proposed to address the above problem. Summary of the invention

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that most of the patients who visit the clinic are in the period of tooth replacement, most of the deciduous molars are lost early, the first premolars have not erupted, and they are difficult to fix when using orthopedic devices in the existing technology to treat patients, a bony orthopedic device for maxillary underdevelopment is proposed.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a bony orthopedic device for maxillary underdevelopment described in the present invention comprises a palatal base, both sides of the palatal base are provided with connectors, the connectors comprise a connecting rod and an arc-shaped rod, one end of the two connecting rods is fixedly connected to the palatal base, the other ends of the two connecting rods are fixedly connected to the two ends of the arc-shaped rod, and a fixator is provided on the arc-shaped rod;

[0007] The fixator comprises a band ring and a slider, the band ring is sleeved on the teeth, the palate side of the band ring is fixedly connected with the slider, and the slider is slidably connected with the arc rod.

[0008] As a preferred solution of the present invention, the fixer also includes a groove, a limit block and a screw. A groove is opened on the inner wall of one side of the fixer, and a limit block is embedded in the groove. One side of the limit block is fitted and connected to the teeth, and the other side of the limit block is fixedly connected to one end of the screw, and the screw is threadedly connected to one side of the band ring.

[0009] As a preferred embodiment of the present invention, the palatal base includes base one, base two, a spur rack, a limiting rod, a limiting groove, a slide groove one and a palate cover plate, a palate cover plate is fixedly arranged between base one and the patient's upper jaw, a spur rack and a limiting rod are fixedly connected to one side of base one, a limiting groove and a slide groove one are provided on base two, the spur rack is slidably connected to the limiting groove, the limiting rod is slidably connected to the slide groove one, and the sides of base one and base two close to the teeth are fixedly connected to the connecting rod.

[0010] As a preferred embodiment of the present invention, the palatal base also includes a groove and a second slide groove, the base two is provided with a groove and a second slide groove, the groove is connected with the first slide groove and the second slide groove, a gear is provided in the groove, the gear is rotatably connected with the inner wall of the base two, the gear is meshed with a spur rack, a movable rack and a spring are provided in the second slide groove, the movable rack is slidably connected with the second slide groove, the upper end of the movable rack passes through the upper wall of the base two, one side of the movable rack is meshed with the gear, and the other side of the movable rack is fit-connected with the spring.

[0011] As a preferred solution of the present invention, a traction hook is provided on one side of base one and base two close to the teeth, and the traction hook includes a nut column and a connecting hook. The two nut columns are rotatably connected to base one and base two respectively, and the nut column is threadedly connected to one side of the connecting hook. The outer end of the connecting hook is arranged in an arc-shaped hook shape, and the outer end of the connecting hook extends to the outside of the tooth.

[0012] Beneficial effects of the present invention:

[0013] The present invention provides a skeletal orthopedic device for maxillary underdevelopment, wherein a slider is arranged to move on an arc rod, thereby driving a band ring to move, and adjusting the position of the band ring corresponding to the teeth, thereby avoiding the common loosening and early loss of premolar deciduous teeth or insufficient eruption of premolar permanent teeth in children of appropriate age, which leads to the inability to fix the correction device. The band ring is put on the teeth, and the screws are turned to move the limit block inward, so that the limit block fits the teeth, and the limit fixation is performed to avoid the mesial movement of the molars, thereby avoiding the negative tooth effect.

[0014] The invention provides a bony orthopedic device for maxillary hypoplasia. A connecting hook can be removed or fixedly installed by means of a rotating nut column, and the connecting hook can be installed after being shaped according to the patient.

[0015] The present invention provides a bony orthopedic device for maxillary underdevelopment. By pulling base one and base two toward the sides or pushing base two toward the middle, a spur rack and a limit rod slide in a slide groove one and a limit groove, and the spacing between base one and base two is adjusted, thereby adjusting the distance between the fixators on both sides, so as to adapt to patients with different oral sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a front view of the three-dimensional structure of the present invention;

[0018] Figure 2 is a three-dimensional structural diagram of the fixator of the present invention;

[0019] Figure 3 It is a three-dimensional structural diagram of the palatal base of the present invention;

[0020] Figure 4 It is a three-dimensional cross-sectional view of the palatal base of the present invention.

[0021] Legend:

[0022] 1. Palatal base; 101. Base 1; 102. Base 2; 103. Straight rack; 104. Limit rod; 105. Limit groove; 106. Slide 1; 107. Groove; 108. Slide 2; 109. Palatal cover plate;

[0023] 2. Connector; 201. Connecting rod; 202. Arc rod;

[0024] 3. Fixer; 301. Belt ring; 302. Groove; 303. Limit block; 304. Screw; 305. Slider;

[0025] 4. Teeth;

[0026] 5. Towing hook; 501. Nut column; 502. Connecting hook;

[0027] 6. Gear; 7. Movable rack; 8. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Specific examples are given below.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 2 The present invention provides a bony orthopedic device for maxillary underdevelopment, comprising a palatal base 1, both sides of the palatal base 1 are provided with a connector 2, the connector 2 comprises a connecting rod 201 and an arc rod 202, one end of the two connecting rods 201 is fixedly connected to the palatal base 1, the other end of the two connecting rods 201 is fixedly connected to both ends of the arc rod 202, and a fixer 3 is provided on the arc rod 202;

[0032] The fixator 3 includes a band ring 301 and a slider 305 . The band ring 301 is fitted on the tooth 4 . The palatal side of the band ring 301 is fixedly connected with the slider 305 . The slider 305 is slidably connected to the arc rod 202 .

[0033] During operation, the slider 305 is moved on the arc rod 202, thereby driving the belt ring 301 to move, adjusting the position of the belt ring 301 corresponding to the teeth, and putting the belt ring 301 on the teeth 4 to avoid the position where the teeth are missing.

[0034] Embodiment 2:

[0035] Further Figure 1-Figure 2 As shown, the fixator 3 also includes a groove 302, a limit block 303 and a screw 304. A groove 302 is opened on the inner wall of one side of the fixator 3, and a limit block 303 is embedded in the groove 302. One side of the limit block 303 is fitted and connected to the tooth 4, and the other side of the limit block 303 is fixedly connected to one end of the screw 304. The screw 304 is threadedly connected to one side of the ring 301.

[0036] During operation, the screw 304 is rotated to move the limiting block 303 inward, so that the limiting block 303 fits the tooth 4 , and the limiting block 303 is fixedly connected to the tooth 4 .

[0037] Embodiment 3:

[0038] Further Figure 1-Figure 3As shown, the palatal base 1 includes a base 101, a base 2 102, a spur rack 103, a limiting rod 104, a limiting groove 105, a slide 106 and a palate cover plate 109, a palate cover plate 109 is fixedly arranged between the base 101 and the patient's upper jaw, a spur rack 103 and a limiting rod 104 are fixedly connected to one side of the base 101, a limiting groove 105 and a slide 106 are provided on the base 2 102, the spur rack 103 is slidably connected to the limiting groove 105, the limiting rod 104 is slidably connected to the slide 106, and the sides of the bases 101 and 102 close to the teeth 4 are fixedly connected to the connecting rod 201.

[0039] During operation, the base 101 and the base 2 102 are pulled toward the sides or pushed toward the middle, so that the spur rack 103 and the limiting rod 104 slide in the slide groove 106 and the limiting groove 105, and the distance between the base 101 and the base 2 102 is adjusted, thereby adjusting the distance between the fixers 3 on both sides.

[0040] Embodiment 4:

[0041] Further Figure 1-Figure 3 - Figure 4 As shown, the palatal base 1 also includes a groove 107 and a second slide groove 108. The groove 107 and the second slide groove 108 are opened in the base 102. The groove 107 is connected with the first slide groove 106 and the second slide groove 108. A gear 6 is arranged in the groove 107. The gear 6 is rotatably connected to the inner wall of the base 102. The gear 6 is meshed with the spur rack 103. A movable rack 7 and a spring 8 are arranged in the second slide groove 108. The movable rack 7 is slidably connected to the second slide groove 108. The upper end of the movable rack 7 passes through the upper wall of the base 102. One side of the movable rack 7 is meshed with the gear 6, and the other side of the movable rack 7 is fit-connected with the spring 8.

[0042] During operation, the movable rack 7 is pushed to move the movable rack 7 toward the rear side in the second slide groove 108, so that the movable rack 7 leaves the gear 6, releases the limiting fixation of the gear 6, and then releases the limiting fixation of the spur rack 103. The spring 8 pushes the movable rack 7 to move forward in the second slide groove 108, so that the movable rack 7 meshes with the gear 6, and the gear 6 and the spur rack 103 are limited and fixed.

[0043] Embodiment 5:

[0044] Further Figure 1As shown, a traction hook 5 is provided on one side of base 101 and base 2 102 close to the tooth 4, and the traction hook 5 includes a nut column 501 and a connecting hook 502. The two nut columns 501 are rotatably connected to base 101 and base 2 102 respectively, and the nut column 501 is threadedly connected to one side of the connecting hook 502. The outer end of the connecting hook 502 is arranged in an arc-shaped hook shape, and the outer end of the connecting hook 502 extends to the outside of the tooth 4.

[0045] During operation, the connecting hook 502 can be removed or fixed by rotating the nut column 501. The arc-shaped portion of the connecting hook 502 extends to the outside of the tooth 4 and can be flexibly connected to an external device traction frame for correction.

[0046] In combination with the embodiments 1-5, the working principle is as follows: when using the orthopedic device, first fix the palatal base 1 on the patient's upper jaw, then move the slider 305 on the arc rod 202 to drive the belt ring 301 to move, adjust the position of the belt ring 301 corresponding to the teeth, put the belt ring 301 on the teeth 4 to avoid the position where the teeth are missing, then turn the screw 304 to move the limit block 303 inwardly so that the limit block 303 fits the teeth 4, and the limit block 303 is fixedly connected to the teeth 4, and then pull the base 101 and the base 2 102 to both sides or push them to the middle so that the straight rack 103 and the limit block The rod 104 slides in the slide groove 106 and the limiting groove 105 to adjust the distance between the base 101 and the base 2 102. The spring 8 pushes the movable rack 7 to move forward in the slide groove 2 108, so that the movable rack 7 is engaged with the gear 6, and the gear 6 and the spur rack 103 are limited and fixed, thereby fixing the base 101 and the base 2 102, and then adjusting the distance between the two side fixers 3. The connecting hook 502 can be removed or fixed by rotating the nut column 501. The arc-shaped part of the connecting hook 502 extends to the outside of the tooth 4, and can be flexibly connected to the external device traction frame for correction.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A bony orthopedic device for maxillary hypoplasia, comprising a palatal base (1), characterized in that: Connectors (2) are provided on both sides of the palatal base (1), the connectors (2) comprising connecting rods (201) and arc-shaped rods (202), one end of the two connecting rods (201) is fixedly connected to the palatal base (1), the other ends of the two connecting rods (201) are fixedly connected to both ends of the arc-shaped rod (202), and a fixer (3) is provided on the arc-shaped rod (202); The fixator (3) comprises a band ring (301) and a slider (305); the band ring (301) is fitted onto the tooth (4); the palatal side of the band ring (301) is fixedly connected to the slider (305); and the slider (305) is slidably connected to the arc rod (202).

2. The bony orthopedic device for maxillary hypoplasia according to claim 1, characterized in that: The fixer (3) further comprises a groove (302), a limit block (303) and a screw (304); a groove (302) is provided on an inner wall of one side of the fixer (3); a limit block (303) is embedded in the groove (302); one side of the limit block (303) is fitted and connected to the tooth (4); the other side of the limit block (303) is fixedly connected to one end of the screw (304); and the screw (304) is threadedly connected to one side of the belt ring (301).

3. The bony orthopedic device for maxillary hypoplasia according to claim 1, characterized in that: The palatal base (1) comprises a base 1 (101), a base 2 (102), a straight rack (103), a limiting rod (104), a limiting groove (105), a sliding groove 1 (106) and a palatal cover plate (109); a palatal cover plate (109) is fixedly arranged between the base 1 (101) and the patient's upper jaw; a straight rack (103) and a limiting rod (104) are fixedly connected to one side of the base 1 (101); a limiting groove (105) and a sliding groove 1 (106) are provided on the base 2 (102); the straight rack (103) is slidably connected to the limiting groove (105); the limiting rod (104) is slidably connected to the sliding groove 1 (106); the sides of the base 1 (101) and the base 2 (102) close to the teeth (4) are fixedly connected to the connecting rod (201).

4. The bony orthopedic device for maxillary hypoplasia according to claim 1, characterized in that: The palatal base (1) further comprises a groove (107) and a second slide groove (108). The base (102) is provided with a groove (107) and a second slide groove (108). The groove (107) is connected with the first slide groove (106) and the second slide groove (108). A gear (6) is arranged in the groove (107). The gear (6) is rotatably connected with the inner wall of the base (102). The gear (6) is meshed with the spur rack (103). A movable rack (7) and a spring (8) are arranged in the second slide groove (108). The movable rack (7) is slidably connected with the second slide groove (108). The upper end of the movable rack (7) passes through the upper wall of the base (102). One side of the movable rack (7) is meshed with the gear (6). The other side of the movable rack (7) is fitted with the spring (8).

5. The bony orthopedic device for maxillary hypoplasia according to claim 3, characterized in that: A traction hook (5) is provided on one side of the base one (101) and the base two (102) close to the tooth (4). The traction hook (5) comprises a nut column (501) and a connecting hook (502). The two nut columns (501) are rotatably connected to the base one (101) and the base two (102) respectively. The nut column (501) is threadedly connected to one side of the connecting hook (502). An outer end of the connecting hook (502) is arranged in an arc-shaped hook shape. The outer end of the connecting hook (502) extends to the outside of the tooth (4).

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