CN211723485U

CN211723485U - Earphone type tooth correcting device with finely adjustable traction direction

Info

Publication number: CN211723485U
Application number: CN201922390091.5U
Authority: CN
Inventors: 邹明媛
Original assignee: Zhejiang Chinese Medicine University ZCMU
Current assignee: Zhejiang Chinese Medicine University ZCMU
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-23
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a tooth orthotic devices that earphone formula pulling direction can be finely tuned. The existing extraoral bow device can not realize accurate adjustment of a traction angle. The utility model comprises a head cover, an adjustable outer bow, an elastic traction rope and a unilateral traction component. The head cover comprises an arc-shaped elastic strip at the top of the head. The two unilateral traction components are respectively arranged at two ends of the inner side surface of the overhead arc-shaped elastic strip; the unilateral traction assembly comprises a traction bracket and a position adjusting rod. The position adjusting rod comprises a limiting block, a first arc-shaped sliding block, a rope connecting rod section, a limiting disc, a reset rod section, a second arc-shaped sliding block and an adjusting handle which are sequentially connected. The adjustable oral external arch comprises an oral external arch body and two telescopic adjusting pieces. The position adjusting rod of the single-side traction assembly can adjust the position, thereby achieving the technical effect of adjusting different traction angles; and simultaneously, the utility model provides a protractor can read out current angle of pulling directly perceivedly.

Description

Earphone type tooth correcting device with finely adjustable traction direction

Technical Field

The utility model belongs to the technical field of orthodontic equipment, concretely relates to but orthodontic device of earphone formula pulling direction fine tuning.

Background

The effects of the extraoral arch are mainly to inhibit the growth and development of the maxilla, rotate □ the plane, move the maxillary teeth and increase the maxillary molar anchorage. Orthodontic clinical applications, particularly in adolescents during their developmental stages, are numerous. The doctor realizes the correction target by adjusting the size, the direction and the action point of the force and the good cooperation (action time) of the patient. The effect of force on the teeth, arch, jaw is related to the relationship of the center of impedance. (1) In the prior art, accurate measurement of the traction angle cannot be realized, and doctors can adjust the extraoral arch clinically by experience and visual inspection, so that the correction effect cannot be quantized. (2) The external arch is general, the length of the external arch is fixed, and the length cannot be adjusted according to the central position of the impedance. (3) Most patients are in adolescent period, think the head cap is ugly, influence social activity, or uncomfortable when wearing, consequently cooperation degree is not good enough, often appears wearing the time not enough, the condition that the effect is not good.

Disclosure of Invention

An object of the utility model is to provide a but earphone formula traction direction fine tuning's tooth orthotic devices.

The utility model comprises a head cover, an adjustable outer bow, an elastic traction rope and a unilateral traction component. The head cover comprises an arc-shaped elastic strip at the top of the head. The two unilateral traction components are respectively arranged at two ends of the inner side surface of the overhead arc-shaped elastic strip; the unilateral traction assembly comprises a traction bracket and a position adjusting rod. The traction bracket includes an inner side plate and an outer side plate. The inner side plate and the outer side plate are arranged at intervals and fixed together. The side surface of the inner side plate facing the outer side plate is provided with a circular arc-shaped adjusting groove. The bottom of the circular arc-shaped adjusting groove is provided with a plurality of partition plates which are sequentially arranged at equal intervals. The bottom of the circular arc-shaped adjusting groove is divided into a plurality of limiting grooves which are sequentially arranged along the circular arc by the plurality of partition plates.

The outer side plate is provided with an arc through groove. The circular arc through groove on the outer side plate is aligned with the circular arc adjusting groove on the inner side plate. The position adjusting rod comprises a limiting block, a first arc-shaped sliding block, a rope connecting rod section, a limiting disc, a reset rod section, a second arc-shaped sliding block and an adjusting handle which are sequentially connected. The cross section of the limiting block is the same as that of the limiting groove; the first arc-shaped sliding block and the second arc-shaped sliding block are respectively positioned in the arc-shaped adjusting groove on the inner side plate and the arc-shaped through groove on the outer side plate. The reset rod section is sleeved with a spring. The two ends of the spring respectively support against the limiting disc and the outer side plate.

The adjustable extraoral arch comprises an extraoral arch body and two telescopic adjusting pieces. One end of each of the two telescopic adjusting pieces is fixed with the two ends of the outer bow body respectively, and the other end of each of the two telescopic adjusting pieces is detachably connected with the two elastic traction ropes respectively. The other ends of the two elastic traction ropes are respectively connected with the rope connecting rod sections in the two unilateral traction assemblies.

Preferably, the single-sided traction assembly further comprises a protractor. The protractor and the connecting rope rod section form a revolute pair with rotational resistance. The protractor is provided with angle scale marks. The circle center corresponding to the angle scale mark of the protractor is on the axis of the connecting rope rod section.

Preferably, the protractor is provided with a rotating hole. A rubber pad is arranged on the side wall of the rotating hole; the rotating hole on the protractor and the connecting rope rod section form a rotating pair. And a bubble level meter is fixed on the protractor. The axis of the bubble level gauge is parallel to the 0 degree scale line on the protractor.

Preferably, the head cover further comprises a back head arc elastic strip. Two ends of the hindbrain arc-shaped elastic strip are respectively fixed with two ends of the head top arc-shaped elastic strip. The arc-shaped adjusting groove is positioned on one side of the central axis of the inner side plate, which is far away from the top arc-shaped elastic strip.

Preferably, the bottom of the limiting block is provided with a chamfer.

Preferably, the first arc-shaped sliding block and the arc-shaped adjusting groove on the inner side plate form a sliding pair sliding along an arc; the second arc-shaped sliding block and the arc through groove on the outer side plate form a sliding pair sliding along the arc.

Preferably, a tension sensor is arranged at the joint of the elastic traction rope and the unilateral traction assembly.

Preferably, the telescopic adjusting part comprises a screw tube and two screws. The rotating directions of the external threads on the two screw rods are opposite; the opposite ends of the two screw rods and the internal threads at the two ends in the screw tube respectively form a screw pair.

The utility model has the advantages that:

1. the position adjusting rod of the unilateral traction assembly can adjust the position, thereby achieving the technical effect of adjusting different traction angles (the angle between the elastic traction rope and the horizontal plane); and simultaneously, the utility model provides a protractor can read out current angle of pulling directly perceivedly.

2. The utility model discloses a be provided with flexible regulating part in the outer bow of adjustable mouthful, can adjust the size of traction force. In addition, the adjustment of the length of the telescopic adjusting piece can change the position of a force application point of the elastic traction rope on the adjustable mouth outer bow, so that the relation between the force application direction and the impedance center can be adjusted.

3. The utility model discloses a headgear is the earphone form, increases recreational, can improve patient's degree of adaptability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of a single-sided traction assembly of the present invention;

FIG. 3 is a side view of a single-sided draft assembly of the present invention;

FIG. 4 is a schematic view of the inner side plate of the present invention;

fig. 5 is a schematic view of the middle position adjusting lever of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, an earphone type orthodontic device with a finely adjustable pulling direction includes a headgear, an adjustable extraoral arch 1, an elastic pulling string 2, and a one-sided pulling member 3. The elastic traction rope 2 adopts a rubber band. The head cover comprises a head top arc elastic strip 4 and a back head arc elastic strip 5; two ends of the head top arc-shaped elastic strip 4 are respectively fixed with two ends of the hindbrain arc-shaped elastic strip 5. The shape of the top arc-shaped elastic strip 4 is the same as the connecting strip of the two ear muffs on the headphone. The overhead curved elastic strip 4 passes around the top of the user's head when in use. The hindbrain arch-shaped elastic strip 5 bypasses the hindbrain of the user when in use. The head cover is used for fixing the utility model and the head of the user. When a user puts the head on the head, the elastic force of the arc-shaped elastic strip 4 at the top of the head and the arc-shaped elastic strip 5 at the back of the head enable the positioning of the head cover to be kept tight.

As shown in fig. 1, 2, 3 and 4, two unilateral traction assemblies 3 are respectively installed at two ends of the inner side surface of the overhead arc-shaped elastic strip 4; the single-sided traction assembly 3 comprises a traction bracket, a position adjusting rod 6 and a protractor 7. The traction bracket comprises an inner side plate 8, an outer side plate 9 and a connecting column. The inner side plate 8 and the outer side plate 9 are arranged at intervals and fixed together through a connecting column. The outer side plate 9 is fixed with the overhead arc-shaped elastic strip 4. The side of the inner side plate 8 facing the outer side plate 9 is provided with a circular arc-shaped adjusting groove. The circular arc-shaped adjusting groove is positioned on one side of the central axis of the inner side plate 8, which is far away from the overhead arc-shaped elastic strip 4. The bottom of the circular arc-shaped adjusting groove is provided with a plurality of partition plates 8-1 which are sequentially arranged at equal intervals. The bottom of the arc-shaped adjusting groove is divided into a plurality of limiting grooves 8-2 which are sequentially arranged along the arc by a plurality of partition plates 8-1.

As shown in fig. 3, 4 and 5, the outer plate 9 is provided with a circular arc through groove. The circular arc through groove on the outer side plate 9 is aligned with the circular arc adjusting groove on the inner side plate 8. The position adjusting rod 6 comprises a limiting block 6-1, a first arc-shaped sliding block 6-2, a connecting rope rod section 6-3, a limiting disc 6-4, a reset rod section 6-5, a second arc-shaped sliding block 6-6 and an adjusting handle 6-7 which are sequentially arranged and connected. The cross section of the limiting block 6-1 is the same as that of the limiting groove 8-2; the bottom of the limiting block 6-1 is provided with a chamfer. The limiting blocks 6-1 are matched with the limiting grooves 8-2, and the limiting of the position adjusting rod 6 at each position on the arc-shaped adjusting groove can be realized. The first arc-shaped sliding block 6-2 and the second arc-shaped sliding block 6-6 are respectively positioned in the arc-shaped adjusting groove on the inner side plate 8 and the arc-shaped through groove on the outer side plate 9. The first arc-shaped sliding block 6-2 and the arc-shaped adjusting groove on the inner side plate 8 form a sliding pair which slides along an arc; the second arc-shaped sliding block 6-6 and the arc through groove on the outer side plate 9 form a sliding pair sliding along an arc. The reset rod section 6-5 is sleeved with a spring 10. The two ends of the spring 10 respectively abut against the limiting discs 6-4 and the outer side plate 9, so that the position adjusting rod 6 is subjected to an elastic force towards the inner side plate 8.

The protractor 7 is provided with a rotating hole. A rubber pad is arranged on the side wall of the rotating hole; the rotating hole on the protractor 7 and the connecting rope rod section 6-3 form a rotating pair. The rubber pads prevent the gravity of the protractor 7 from overcoming the maximum rotation resistance between the protractor 7 and the connecting rope rod section 6-3, and the protractor 7 can be kept static in different spatial poses. The protractor 7 is provided with angle scale lines within the range of 0-90 degrees. The circle center corresponding to the angle scale mark of the protractor 7 is on the axis of the connecting rope rod section 6-3. The protractor 7 is fixed with a bubble level gauge. The axis of the bubble level gauge is parallel to the 0-degree scale mark on the protractor 7; when the air bubble level gauge is used, the air bubble level gauge can judge whether the 0-degree scale mark of the protractor 7 is in a horizontal state, and the 90-degree scale mark is positioned below the 0-degree scale mark.

The adjustable extraoral arch 1 comprises an extraoral arch body and two telescopic adjusting pieces. The telescopic adjusting piece comprises a solenoid and two screws. The rotating directions of the external threads on the two screw rods are opposite; the opposite ends of the two screw rods and the internal threads at the two ends in the screw tube respectively form a screw pair. The screw tube and the two screw rods are kept self-locking under the condition of only receiving tensile force. One end (the outer end of one of the screw rods) of the two telescopic adjusting pieces is respectively fixed with two ends of the mouth outer bow body, and the other end of the two telescopic adjusting pieces is respectively fixed (not fixed, and the other end is used for connecting a rubber band) with the two elastic traction ropes 2. The other ends of the two elastic traction ropes 2 are respectively connected with the rope connecting rod sections 6-3 in the two unilateral traction assemblies 3 through hooks, so that the elastic traction ropes 2 are convenient to replace. A tension sensor is arranged at the joint of the elastic traction rope 2 and the unilateral traction assembly 3. And a signal output interface of the tension sensor is connected with the controller. The controller communicates with the upper computer through the Bluetooth module.

The working principle of the utility model is as follows:

firstly, the medical staff puts the head cover on the head of the person to be corrected and puts the extraoral bow body into the mouth of the person to be corrected and positions the extraoral bow body.

Then, the medical staff turns out the protractors 7 in the two unilateral traction assemblies 3 and adjusts the protractors to be in a state that the 0-degree scale mark is horizontal; the medical staff holds the adjusting handle 6-7 by hand and pulls out the position adjusting rod 6. The traction angle of the elastic traction rope 2 is changed by changing the position of the position adjusting rod 6 in the circular arc-shaped adjusting groove; the pulling angle of the elastic pulling rope 2 can be read on the protractor 7. And the protractor 7 is retracted, pulled out again during the return visit, the angle change is recorded, and the movement and the rotation of the tooth and the bone can be quantified.

Finally, the screw pipes on the two telescopic adjusting pieces are rotated to adjust the tightness of the elastic traction rope 2, thereby adjusting the traction force. In addition, the adjustment of the length of the telescopic adjusting piece can change the position of a force application point of the elastic traction rope on the adjustable-mouth outer bow 1, so that the position relation between the force application point and the impedance center can be adjusted.

Claims

1. An earphone type orthodontic device with precisely adjustable traction direction comprises a head cover, an adjustable oral external arch, an elastic traction rope and a unilateral traction assembly; the method is characterized in that: the head cover comprises an arc-shaped elastic strip at the top of the head; the two unilateral traction components are respectively arranged at two ends of the inner side surface of the overhead arc-shaped elastic strip; the unilateral traction assembly comprises a traction bracket and a position adjusting rod; the traction bracket comprises an inner side plate and an outer side plate; the inner side plate and the outer side plate are arranged at intervals and fixed together; the side surface of the inner side plate facing the outer side plate is provided with a circular arc-shaped adjusting groove; a plurality of partition plates which are sequentially arranged at equal intervals are arranged at the bottom of the circular arc-shaped adjusting groove; the bottom of the arc-shaped adjusting groove is divided into a plurality of limiting grooves which are sequentially arranged along an arc by the plurality of partition plates;

the outer side plate is provided with an arc through groove; the arc through groove on the outer side plate is aligned with the arc adjusting groove on the inner side plate; the position adjusting rod comprises a limiting block, a first arc-shaped sliding block, a rope connecting rod section, a limiting disc, a reset rod section, a second arc-shaped sliding block and an adjusting handle which are sequentially connected; the cross section of the limiting block is the same as that of the limiting groove; the first arc-shaped sliding block and the second arc-shaped sliding block are respectively positioned in the arc-shaped adjusting groove on the inner side plate and the arc-shaped through groove on the outer side plate; the reset rod section is sleeved with a spring; two ends of the spring respectively abut against the limiting disc and the outer side plate;

the adjustable extraoral arch comprises an extraoral arch body and two telescopic adjusting pieces; one end of each of the two telescopic adjusting pieces is fixed with the two ends of the mouth outer bow body respectively, and the other end of each of the two telescopic adjusting pieces is detachably connected with the two elastic traction ropes respectively; the other ends of the two elastic traction ropes are respectively connected with the rope connecting rod sections in the two unilateral traction assemblies.

2. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 1, wherein: the single-side traction assembly further comprises a protractor; the protractor and the connecting rope rod section form a revolute pair with rotational resistance; angle scale lines are arranged on the protractor; the circle center corresponding to the angle scale mark of the protractor is on the axis of the connecting rope rod section.

3. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 2, wherein: the protractor is provided with a rotating hole; a rubber pad is arranged on the side wall of the rotating hole; the rotating hole on the protractor and the connecting rope rod section form a rotating pair; the protractor is fixedly provided with a bubble level meter; the axis of the bubble level gauge is parallel to the 0 degree scale line on the protractor.

4. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 1, wherein: the head cover also comprises a back head arc elastic strip; two ends of the hindbrain arc-shaped elastic strip are respectively fixed with two ends of the vertex arc-shaped elastic strip; the arc-shaped adjusting groove is positioned on one side of the central axis of the inner side plate, which is far away from the top arc-shaped elastic strip.

5. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 1, wherein: and a chamfer is arranged at the bottom of the limiting block.

6. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 1, wherein: the first arc-shaped sliding block and the arc-shaped adjusting groove on the inner side plate form a sliding pair sliding along an arc; the second arc-shaped sliding block and the arc through groove on the outer side plate form a sliding pair sliding along the arc.

7. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 1, wherein: and a tension sensor is arranged at the joint of the elastic traction rope and the unilateral traction assembly.

8. The apparatus for correcting teeth, which has a headphone type and a finely adjustable pulling direction, according to claim 1, wherein: the telescopic adjusting piece comprises a solenoid and two screws; the rotating directions of the external threads on the two screw rods are opposite; the opposite ends of the two screw rods and the internal threads at the two ends in the screw tube respectively form a screw pair.