CN113855281B - Expansion bow external member convenient to adjust and use method thereof - Google Patents
Expansion bow external member convenient to adjust and use method thereof Download PDFInfo
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- CN113855281B CN113855281B CN202111046520.2A CN202111046520A CN113855281B CN 113855281 B CN113855281 B CN 113855281B CN 202111046520 A CN202111046520 A CN 202111046520A CN 113855281 B CN113855281 B CN 113855281B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
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Abstract
The invention provides an expansion bow kit convenient to adjust and a using method thereof. The bow expander comprises an adjusting gear, a pair of sliding racks and a pair of base plates; an adjusting groove is formed in the center of the end face of the adjusting gear, and a pair of sliding racks are arranged in parallel and are respectively meshed with the adjusting gear; expand the bow spanner including connecting portion and the operating portion that is certain contained angle, connecting portion are provided with adjustment tank complex bellying, expand the bow spanner and are configured as: when the protruding part is clamped in the adjusting groove, the adjusting gear is driven to rotate through the transverse swinging operation part, so that the distance between the first substrate and the second substrate can be adjusted. The bow expanding sleeve piece provided by the invention can prevent a patient from constantly keeping a large mouth opening state in the bow expanding operation process, reduce the difficulty of bow expanding operation, shorten the adjusting time, avoid the safety risk caused by the fact that the patient sucks a bow expanding key by mistake, and guarantee the personal safety of the patient.
Description
Technical Field
The invention belongs to the technical field of oral medical auxiliary instruments, and particularly relates to a bow expansion kit convenient to adjust and a using method thereof.
Background
Irregular width of upper and lower jaw dental arches is one of the common malocclusion deformities in orthodontic treatment. The conventional treatment is to expand the maxilla to coordinate the width between the upper and lower jaws. The expansion of the maxilla is realized by an upper jaw expansion device, namely an expansion appliance, and the expansion appliance is connected with the upper jaw teeth, the dental arch or the upper jaw through devices such as a belt ring, a closing pad, a planting nail and the like, so that the expansion force is transmitted to the palatal centre joint, and the widening of the maxilla is realized.
The working principle of the arch expanding device is that the width of the arch expanding device is increased through a rotating rod, and then the generated orthopedic force is transmitted to the palatal centre joint through devices such as a belt ring, a combining pad and a planting nail so as to open the palatal centre joint and widen the maxilla. In the actual clinical use process of the existing arch expanding device, the adjusting mode is to insert an arch expanding key into a small hole on a rotating rod, and the expanding of the arch expanding device is realized by rotating the rotating rod in a sagittal direction from outside to inside.
The operation mode of rotating from outside to inside requires that a patient has to keep a large mouth all the time in the bow expanding process, the operation difficulty is high, the time consumption is long, the risk that the patient accidentally sucks the bow expanding key is increased, and even the palate mucosa is scratched by the bow expanding key due to improper operation.
Therefore, the technical problem to be solved is urgent how to improve the unreasonable design of the existing arch expanding device and improve the convenience and safety of arch expanding operation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the bow expansion kit which can improve the bow expansion efficiency, reduce the bow expansion difficulty and ensure the safety of bow expansion operation and is convenient to operate and adjust.
In order to solve the technical problem, a first aspect of the present invention provides an easily adjustable bow-expanding kit, including a bow expander and a bow expanding wrench;
the bow expander comprises an adjusting gear, a first sliding rack, a second sliding rack, a first substrate and a second substrate; an adjusting groove is formed in the center of the end face of the adjusting gear; the first sliding rack and the second sliding rack are arranged on two sides of the adjusting gear in parallel and are respectively meshed with the adjusting gear; the first substrate is fixed at one end of the second sliding rack and is in sliding connection with the first sliding rack; the second substrate is fixed at one end of the first sliding rack far away from the first substrate and is connected with the other end of the second sliding rack in a sliding manner;
the bow expanding wrench comprises a connecting part and an operating part, the connecting part is provided with a convex part matched with the adjusting groove, and an included angle is formed between the connecting part and the operating part; the bow expanding wrench is configured to: when the protruding portion is clamped in the adjusting groove, the operation portion drives the adjusting gear to rotate through transverse swinging, so that the distance between the first substrate and the second substrate can be adjusted.
On the basis of the technical scheme, the adjusting gear comprises a central gear and gear baffles, the central gear is concentrically arranged, the gear baffles are fixed on two end faces of the central gear, and the edges of the gear baffles exceed the top ends of gear teeth of the central gear.
On the basis of the technical scheme, a first limiting mechanism used for limiting the first sliding rack to move towards the direction close to the first substrate is arranged on the first substrate; and a second limiting mechanism used for limiting the second sliding rack to move towards the direction close to the second substrate is arranged on the second substrate.
On the basis of the technical scheme, the first limiting mechanism comprises a first fixing part and a first limiting part; the first fixing part is fixed on the side wall of the first substrate, and the first limiting part extends into a tooth groove of the first sliding rack; the second limiting mechanism comprises a second fixing part and a second limiting part; the second fixing part is fixed on the side wall of the second substrate, and the second limiting part extends into the tooth groove of the second sliding rack.
On the basis of the technical scheme, the first limiting mechanism and the second limiting mechanism are both metal sheets with thick lower parts and thin upper parts; when the first substrate and the second substrate are far away from each other under the action of the adjusting gear, the first limiting part and the second limiting part deform and respectively enter the adjacent tooth grooves.
On the basis of the technical scheme, the tooth space intervals of the first sliding rack and the second sliding rack are the same.
On the basis of the technical scheme, the adjusting groove is in a shape of a straight line, a cross, a diamond or a regular hexagon.
On the basis of the technical scheme, the adjusting groove and the protruding part are mutually attracted through magnetism.
On the basis of the technical scheme, the arch expander is connected to the teeth through a belt ring; or connected to the dental arch via a bite block; or to the maxilla by means of implant nails.
In a second aspect, the invention provides a method for using the conveniently-adjusted expansion bow kit according to the first aspect, which comprises the following steps:
s1, connecting the arch expander to the teeth through the belt ring, or connecting the arch expander to the dental arch through the closing cushion, or connecting the arch expander to the maxilla through the implant nails;
s2, clamping the protruding part of the connecting part of the bow expanding wrench in the adjusting groove of the adjusting gear of the bow expanding device;
s3, transversely swinging the bow expanding wrench by the operation part of the hand-held bow expanding wrench to enable the first substrate and the second substrate to be away from each other;
and S4, finishing the bow expansion operation after the bow expansion amount reaches the required bow expansion amount.
Compared with the prior art, the invention has the beneficial effects that:
(1) the bow expansion kit provided by the invention improves the structures of the bow expansion device and the bow expansion wrench, and can drive the adjusting gear to rotate by transversely swinging the operating part of the wrench so as to realize the adjustment of the distance between the substrates. Compared with the traditional bow expander and bow expanding mode, the bow expanding suite can avoid the long-time large mouth opening of a patient in the operation process, reduce the operation difficulty, increase the comfort level of the patient, avoid the safety risk caused by the fact that the patient sucks a bow expanding key by mistake, and guarantee the personal safety of the patient.
(2) The first substrate is provided with a first limiting mechanism for limiting the first sliding rack to move towards the direction close to the first substrate; and a second limiting mechanism used for limiting the second sliding rack to move towards the direction close to the second substrate is arranged on the second substrate. Through setting up first stop gear and the second stop gear that has one-way limit function, can restrict two base plates and produce relative slip and be close to each other with the slip rack under maxilla, dental arch or the effect of tooth contractility, ensure that the volume of expanding at every turn can both be maintained.
(3) The first limiting mechanism and the second limiting mechanism are metal sheets with one ends fixed to the side wall of the base plate and thick lower parts and thin upper parts, and the top of each metal sheet is a limiting part extending into a tooth groove of the sliding rack. When the expansion spanner is used for driving the adjusting gear to rotate, the limiting part is pushed by the tooth grooves to deform and enter the adjacent tooth grooves. The metal sheet can vibrate during the operation process, and the operator is prompted. An operator can clearly master the distance of the expanded arch by combining the distance of the tooth sockets and the vibration times, and the accuracy of the expanded arch operation is improved.
Drawings
FIG. 1 is a schematic view of an expander structure of an expansion bow kit provided by the present invention for easy adjustment;
FIG. 2 is a schematic structural view of a bow expanding wrench of the bow expanding kit for easy adjustment according to the present invention;
FIG. 3 is a front view of an adjustment gear provided by the present invention;
FIG. 4 is a side view of an adjustment gear provided by the present invention;
FIG. 5 is a schematic view of the first spacing mechanism of the present invention in use;
FIG. 6 is a schematic view of an application of the bow expander provided in embodiment 1 of the present invention;
FIG. 7 is a schematic view of an application of the bow expander provided in embodiment 2 of the present invention;
fig. 8 is a schematic view of an application of the bow expander provided in embodiment 3 of the present invention.
Wherein, 1-adjusting the gear; 11-an adjustment tank; 12-a sun gear; 13-gear baffle; 2-a first sliding rack; 3-a second sliding rack; 4-a first substrate; 41-a first limiting mechanism; 42-a first fixed part; 43-a first stop; 5-a second substrate; 51-a second limiting mechanism; 52-a second fixed part; 53-a second stop; 6-a connecting part; 61-a boss; 7-an operating part; 71-handle.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The invention provides an expansion bow kit convenient to adjust, which comprises an expansion bow device and an expansion bow wrench.
Referring to fig. 1, the bow expander includes an adjusting gear 1, a first sliding rack 2, a second sliding rack 3, a first base plate 4 and a second base plate 5; the first sliding rack 2 and the second sliding rack 3 are arranged on two sides of the adjusting gear 1 in parallel, and the two sliding racks are respectively meshed with the adjusting gear 1. A first substrate 4 and a second substrate 5 are respectively arranged at two sides of the adjusting gear 1, wherein the first substrate 4 is fixed at one end of the second sliding rack 3 and is connected with the first sliding rack 2 in a sliding manner; the second substrate 5 is fixed at one end of the first sliding rack 2 far away from the first substrate 4, and is connected with the other end of the second sliding rack 3 in a sliding manner.
Referring to fig. 2, the expanding spanner comprises a connecting part 6 and an operating part 7, and an included angle is formed between the connecting part 6 and the operating part 7. Preferably, the degree of the included angle is 110-135 degrees, and the angle range is more convenient for adjustment operation. The end of the connecting portion 6 is provided with a boss 61 that matches the adjustment groove 11. The bow expanding wrench is configured to: when the protruding portion 61 is clamped in the adjusting groove 11, the operation portion 7 is transversely swung to drive the adjusting gear 1 to rotate, so that the distance between the first substrate 4 and the second substrate 5 can be adjusted.
When the distance between the first substrate 4 and the second substrate 5 needs to be adjusted, the connecting part 6 of the bow expansion wrench extends into the oral cavity of a patient, so that the convex part 61 of the connecting part 6 is clamped in the adjusting groove 11 of the adjusting gear 1, and the adjusting gear 1 can be driven to rotate by swinging the operating part 7 of the bow expansion wrench transversely (leftwards or rightwards). As shown in fig. 1, when the adjusting gear 1 rotates clockwise, the first sliding rack 2 located above the adjusting gear 1 moves to the right under the driving of the adjusting gear 1, and since the first sliding rack 2 is slidably connected to the first substrate 4 and is fixedly connected to the second substrate 5, the first sliding rack 2 drives the second substrate 5 to be far away from the adjusting gear 1 and the first substrate 4. In a similar way, when the adjusting gear 1 rotates clockwise, the second sliding rack 2 can drive the first substrate 4 to be away from the adjusting gear 1 and the second substrate 5, and then the adjusting effect that the two substrates are away from each other is realized. In the driving process, the two sliding racks with the same structure respectively slide to the left side and the right side, so that the position of the sliding gear 1 is kept unchanged.
According to the invention, through the improvement of the structures of the bow expander and the bow expanding wrench, the traditional adjusting mode that the bow expanding key is inserted into the adjusting hole of the reamer on the rotating rod of the bow expander and is rotated in the oral cavity of a patient is improved into the mode that the bow expanding wrench transversely swings outside the oral cavity to adjust the distance between the substrates of the bow expander. In the bow expanding operation process, a patient does not need to constantly keep a large mouth opening state, the operation difficulty is reduced, the adjusting time is shortened, the safety risk caused by the fact that the patient sucks the bow expanding key by mistake can be avoided, and the personal safety of the patient is guaranteed.
Referring to fig. 3 and 4, the adjusting gear 1 includes a central gear 12 concentrically disposed and gear baffles 13 fixed to end surfaces of both sides of the central gear 12, and edges of the gear baffles 13 extend beyond top ends of gear teeth of the central gear 12. Set up two gear baffle 13 and can block sun gear 12 between two slip racks, avoid sun gear 12 and two slip racks to produce the relative movement of vertical direction and influence the meshing effect, also can avoid sun gear 12 to drop.
In some preferred embodiments, a first limiting mechanism 41 for limiting the movement of the first sliding rack 2 to a direction close to the first base plate 4 is disposed on the first base plate 4; the second substrate 5 is provided with a second limiting mechanism 51 for limiting the second sliding rack 3 to move towards the direction close to the second substrate 5.
The first limiting mechanism 41 and the second limiting mechanism 51 of the invention are both one-way limiting mechanisms, and the arrangement mainly considers that after the arch expander is installed, the base plate can easily slide relative to the sliding rack under the force brought by the contraction of the maxilla, dental arch or teeth, so that the arch expanding effect is influenced. Through setting up one-way stopper, can restrict two base plates and be close to each other to ensure that the volume of expanding each time can both be maintained.
Further, the first limiting mechanism 41 includes a first fixing portion 42 and a first limiting portion 43; the first fixing part 42 is fixed on the side wall of the first substrate 4, and the first limiting part 43 extends into the tooth groove of the first sliding rack 2; the second limiting mechanism 51 comprises a second fixing part 52 and a second limiting part 53; the second fixing portion 52 is fixed on the side wall of the second substrate 5, and the second limiting portion 53 extends into the tooth groove of the second sliding rack 3. When the first substrate 4 and the second substrate 5 move in opposite directions, the first limiting portion 43 and the second limiting portion 44 are deformed by the thrust of the tooth socket and enter the adjacent tooth sockets respectively.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating the first limiting mechanism 41 and the first sliding rack 2 performing limiting operation. In fig. 5 (a), in a normal state, the first fixing portion 42 of the first limiting mechanism 41 is fixed on the side wall of the first substrate 4, and the first limiting portion 43 extends into the tooth groove of the first sliding rack 2. When the adjusting gear 1 is rotated clockwise, the first sliding rack 2 drives the second substrate 5 to move in a direction away from the first substrate 4, as shown in fig. 5 (b), the first limiting portion 43 of the first limiting mechanism 41 bends and deforms in a direction away from the side wall of the first substrate 4 under the pushing force of the tooth socket, and ejects the tooth socket where the first limiting mechanism originally located, enters the adjacent tooth socket, and recovers the original shape. And when first base plate 4 and second base plate 5 receive the effect of maxilla, dental arch or tooth contractility, promote first slip rack 2 and drive second base plate 5 to the direction motion of being close to first base plate 4, as in (c) of fig. 5, first spacing portion 43 receives the restriction of first base plate lateral wall, can't produce bending deformation to the direction of being close to first base plate 4 lateral wall, has realized one-way spacing.
In some preferred embodiments, the first position-limiting mechanism 41 and the second position-limiting mechanism 51 are both metal sheets with a thick bottom and a thin top. When the adjusting gear 1 is operated by the expanding wrench to separate the substrates on both sides from each other, the top of the metal sheet in the first limiting mechanism 41 and the second limiting mechanism 51 will pop out the original tooth groove and enter the adjacent tooth groove to generate vibration at the same time, so as to prompt the operator of the expanding distance.
Specifically, the proper tooth space spacing can be selected for the sliding rack according to the accuracy of bow expander adjustment required. Preferably, the first sliding rack 2 and the second sliding rack 3 have the same structure, and the tooth space interval is 0.2-0.5 mm, such as 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm or other values. For example, the tooth space spacing of the two sliding racks is set to be 0.5mm, and when the two limiting mechanisms vibrate once, the distance is expanded by 1 mm. The vibration that the sheetmetal produced in operation process can play the prompt action, and the operator of being convenient for more clearly masters and expands the bow distance, further reduces and expands the bow degree of difficulty.
In some preferred embodiments, the shape of the adjustment groove 11 may be a straight line, a cross, a diamond, a regular hexagon, or other shapes, which can ensure a stable engagement with the protrusion 61 of the bow-expanding wrench.
In some preferred embodiments, the adjustment groove 11 and the protrusion 61 are magnetically attracted to each other. For example, the bottom of the adjusting groove is made of ferrous material, the boss 61 of the bow expanding wrench is made of magnet material, and the boss 61 of the bow expanding wrench is guided to be smoothly positioned by the magnetic attraction of the two, so that the difficulty of the bow expanding operation is further reduced.
In some preferred embodiments, the operating portion 7 of the expanding wrench further comprises a handle 71 for gripping. Preferably, the handle 71 is provided with a strip-shaped protrusion or groove to increase the friction force between the hand and the handle 71, so that the operator can perform the bow-expanding operation more conveniently.
In some preferred embodiments, the expander is attached to the tooth, arch or maxilla by a band, bite block or nail.
The invention also provides a use method based on the bow-expanding suite, which comprises the following steps:
s1, connecting the arch expander to the teeth through the belt ring, or connecting the arch expander to the dental arch through the closing cushion, or connecting the arch expander to the maxilla through the implant nails;
s2, the convex part 61 of the connecting part 6 of the bow expansion wrench is clamped in the adjusting groove 11 of the adjusting gear 1 of the bow expansion device;
s3, the operation part 7 of the hand-held bow expanding wrench swings the bow expanding wrench transversely to separate the first base plate 4 and the second base plate 5 from each other;
and S4, after the bow expanding amount is reached, taking out the bow expanding wrench, and finishing the bow expanding operation.
Further, in step S3, while the operation unit 7 holding the expansion wrench is swinging the expansion wrench laterally, the expansion amount is calculated based on the vibration indication from the first and second limit mechanisms 41 and 51.
Example 1
A bow expander comprises an adjusting gear 1, a first sliding rack 2, a second sliding rack 3, a first base plate 4 and a second base plate 5; an adjusting groove 11 is formed in the center of the end face of the adjusting gear 1; the first sliding rack 2 and the second sliding rack 3 are arranged on two sides of the adjusting gear 1 in parallel and are respectively meshed with the adjusting gear 1; the first substrate 4 is fixed at one end of the second sliding rack 3 and is connected with the first sliding rack 2 in a sliding manner; the second substrate 5 is fixed at one end of the first sliding rack 2 far away from the first substrate 4, and is connected with the other end of the second sliding rack 3 in a sliding manner. The bow expander is provided with a matched bow expanding wrench, and the bow expanding wrench comprises a connecting part 6 and an operating part 7; the connecting part 6 is provided with a convex part 61 matched with the adjusting groove 11, and the connecting part 6 and the operating part 7 form an included angle of 120 degrees.
The adjusting gear 1 comprises a central gear 12 and gear baffles 13, wherein the central gear 12 is concentrically arranged, the gear baffles 13 are fixed on two end faces of the central gear 12, and the edges of the gear baffles 13 exceed the top ends of gear teeth of the central gear 12. The side surfaces of the first substrate 4 and the second substrate 5 are respectively provided with a first limiting mechanism 41 and a second limiting mechanism 42 which are made of metal sheets with thin top and thick bottom, a first limiting part 43 of the first limiting mechanism 41 extends into a tooth groove of the first sliding rack 2, and a second limiting part 53 of the second limiting mechanism 51 extends into a tooth groove of the second sliding rack 3. When the first substrate 4 and the second substrate 5 are away from each other under the action of the adjusting gear 1, the first limiting portion 43 and the second limiting portion 44 deform and enter the adjacent tooth grooves respectively.
Furthermore, the tooth space distance between the first sliding rack 2 and the second sliding rack 3 is 0.5mm, and when the two limiting mechanisms vibrate once, the distance is equivalent to 1 mm. The adjustment groove 11 is hexagonal in shape and the boss 61 is matched therewith. The bottom of the adjusting groove is made of iron materials, the protruding portion 61 is made of magnet materials, and the protruding portion of the bow expanding wrench is guided to be smoothly located through magnetic attraction.
Referring to fig. 6, the base plates at both sides of the expander are connected with the band, and the expander is installed in the mouth, so that the forces of the base plates, which are away from each other, are transmitted to the teeth through the band and further to the upper arch and the maxilla, thereby achieving the lateral widening of the maxilla.
Example 2
This example is an improvement made on the basis of example 1, and specifically includes the following steps:
referring to fig. 7, on the basis of the embodiment 1, the band and the connecting device thereof are eliminated, the base plates at both sides of the arch expansion device are embedded into the bite block, and the bite block is fixed to the dental arch through the adhesive, so that the force separating the base plates from each other is transmitted to the dental arch through the bite block and further transmitted to the maxilla at both sides, and the transverse widening of the maxilla is realized.
Example 3
This example is an improvement made on the basis of example 1, and specifically includes the following steps:
referring to fig. 8, on the basis of embodiment 1, two round holes are respectively added on the two base plates, and the planting nails can be fixedly positioned on two sides of the palatal central joint through the round holes, so that the force of mutually keeping away from the base plates is transmitted to two sides of the palatal central joint through the planting nails, and the transverse bony widening of the maxilla is realized.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.
Claims (9)
1. An expansion bow kit convenient to adjust is characterized by comprising an expansion bow device and an expansion bow spanner;
the bow expander comprises an adjusting gear (1), a first sliding rack (2), a second sliding rack (3), a first base plate (4) and a second base plate (5);
an adjusting groove (11) is formed in the center of the end face of the adjusting gear (1);
the first sliding rack (2) and the second sliding rack (3) are arranged on two sides of the adjusting gear (1) in parallel and are respectively meshed with the adjusting gear (1);
the first substrate (4) is fixed at one end of the second sliding rack (3) and is connected with the first sliding rack (2) in a sliding manner; the second substrate (5) is fixed at one end, far away from the first substrate (4), of the first sliding rack (2) and is in sliding connection with the other end of the second sliding rack (3);
the bow expanding wrench comprises a connecting part (6) and an operating part (7), wherein the connecting part (6) is provided with a protruding part (61) matched with the adjusting groove (11), and an included angle is formed between the connecting part (6) and the operating part (7);
the bow expanding wrench is configured to: when bellying (61) joint in adjustment tank (11), through horizontal swing operation portion (7) drive adjusting gear (1) rotates, in order to realize first base plate (4) with the regulation of distance between second base plate (5).
2. The bow-expanding kit according to claim 1, wherein the adjusting gear (1) comprises a central gear (12) concentrically arranged and gear baffles (13) fixed to both end faces of the central gear (12), and edges of the gear baffles (13) extend beyond the top ends of the teeth of the central gear (12).
3. The bow-expanding kit according to claim 1, wherein the first base plate (4) is provided with a first limiting mechanism (41) for limiting the movement of the first sliding rack (2) to a direction close to the first base plate (4);
and a second limiting mechanism (51) for limiting the second sliding rack (3) to move towards the direction close to the second substrate (5) is arranged on the second substrate (5).
4. The bow-expanding kit according to claim 3, wherein the first limiting mechanism (41) comprises a first fixing portion (42) and a first limiting portion (43); the first fixing part (42) is fixed on the side wall of the first substrate (4), and the first limiting part (43) extends into a tooth groove of the first sliding rack (2);
the second limiting mechanism (51) comprises a second fixing part (52) and a second limiting part (53); the second fixing part (52) is fixed on the side wall of the second substrate (5), and the second limiting part (53) extends into the tooth groove of the second sliding rack (3).
5. The bow-expanding kit according to claim 4, wherein the first limiting mechanism (41) and the second limiting mechanism (51) are both metal sheets with a thick bottom and a thin top; when the first substrate (4) and the second substrate (5) are far away from each other under the action of the adjusting gear (1), the first limiting part (43) and the second limiting part (53) can deform and respectively enter the adjacent tooth grooves.
6. The pantograph kit according to claim 5, wherein the first sliding rack (2) and the second sliding rack (3) have the same pitch.
7. The bow-expanding kit according to claim 1, wherein the shape of the adjustment groove (11) is in-line, cross, diamond or regular hexagon.
8. The bow-expanding kit according to claim 1, wherein the adjustment groove (11) and the protrusion (61) are magnetically attracted to each other.
9. The arch expander kit of claim 1, wherein the arch expander is connected to the tooth by a band; or connected to the dental arch via a bite block; or to the maxilla by means of implant nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111046520.2A CN113855281B (en) | 2021-09-06 | 2021-09-06 | Expansion bow external member convenient to adjust and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111046520.2A CN113855281B (en) | 2021-09-06 | 2021-09-06 | Expansion bow external member convenient to adjust and use method thereof |
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| Publication Number | Publication Date |
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| CN113855281A CN113855281A (en) | 2021-12-31 |
| CN113855281B true CN113855281B (en) | 2022-06-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB813718A (en) * | 1957-06-25 | 1959-05-21 | Peter Gerbrands | Device for widening or expanding human jaws |
| CN209048326U (en) * | 2018-07-09 | 2019-07-02 | 佛山科学技术学院 | A kind of arc expansion bow device |
| RU2697607C1 (en) * | 2015-12-15 | 2019-08-15 | Сун Чуль МУН | Palate expander |
| CN209285762U (en) * | 2018-07-02 | 2019-08-23 | 王婷 | Multi-functional appliance |
| CN209966598U (en) * | 2019-04-25 | 2020-01-21 | 云南家红齿科技术股份有限公司 | Movable appliance with arch expander |
-
2021
- 2021-09-06 CN CN202111046520.2A patent/CN113855281B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB813718A (en) * | 1957-06-25 | 1959-05-21 | Peter Gerbrands | Device for widening or expanding human jaws |
| RU2697607C1 (en) * | 2015-12-15 | 2019-08-15 | Сун Чуль МУН | Palate expander |
| CN209285762U (en) * | 2018-07-02 | 2019-08-23 | 王婷 | Multi-functional appliance |
| CN209048326U (en) * | 2018-07-09 | 2019-07-02 | 佛山科学技术学院 | A kind of arc expansion bow device |
| CN209966598U (en) * | 2019-04-25 | 2020-01-21 | 云南家红齿科技术股份有限公司 | Movable appliance with arch expander |
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|---|---|
| CN113855281A (en) | 2021-12-31 |
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