CN114209455A

CN114209455A - Multidirectional bow expander

Info

Publication number: CN114209455A
Application number: CN202210010819.0A
Authority: CN
Inventors: 卢晓琳; 曹猛; 金作林
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-03-22
Anticipated expiration: 2042-01-05
Also published as: CN114209455B

Abstract

The invention discloses a multidirectional arch expander which comprises an upper dental arch and a lower dental arch, wherein upper dental sockets are arranged at two ends of the outer wall of the upper dental arch, an upper front dental socket is arranged on the front end surface of the outer wall of the upper dental arch, lower dental sockets are arranged at two ends of the outer wall of the lower dental arch, a lower front dental socket is arranged on the front end surface of the outer wall of the lower dental arch, and a detection mechanism capable of detecting whether the upper dental arch is expanded or not is arranged between the upper dental arch and the lower dental arch. According to the invention, a user can carry out detection according to the vertical closing of the oral cavity during the arch expansion process, the upper dental arch and the lower dental arch can be clamped and embedded together when the user closes the oral cavity, at the moment, the user can have a resistance to block in the process of closing the oral cavity each time, after the upper dental arch expands to a certain extent, the elastic plate can enter the clamping groove when the user closes the oral cavity, and the elastic plate cannot be extruded in the process.

Description

Multidirectional bow expander

Technical Field

The invention relates to the field of bow expanders, in particular to a multidirectional bow expander.

Background

The appliance is composed of an arch expander, a fixing clamp ring, a hyperbolic labial arch and a base, and the correction principle is that the arch expander is placed at a proper position, the arch expander is opened through rotating a spiral hole, and correction force is transmitted to teeth and alveolar bones through the base so as to enlarge the width and the length of upper and lower jaw dental arches.

The existing multidirectional arch expander is usually used for expanding arches symmetrically on two sides when expanding arches, but the sizes of the arches required on two sides of some patients are different, the arch expander is often required to be detected in the arch expanding process to avoid the problem of excessive arch expansion or insufficient arch expansion, and the existing arch expander is required to contract front teeth after expanding arches on two sides, so that the arch expanding time can not be prolonged in different steps.

Therefore, there is a need to provide a multidirectional pantograph expander to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a multidirectional expansion bow, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multidirectional ware of expanding bow, includes dental arch and lower dental arch, go up dental arch outer wall both ends and install the upper dental brace, go up the preceding dental brace of terminal surface installation before the dental arch outer wall, lower dental brace is installed at lower dental arch outer wall both ends, lower preceding dental brace is installed to the preceding terminal surface of lower dental arch outer wall, it can detect the detection mechanism whether the dental arch expands the bow and accomplish to go up to be provided with between dental arch and the lower dental arch, detection mechanism is including offering the depressed part at last dental arch bottom both ends and installing the protruding portion at dental arch top both ends down, vertical decurrent recess has been seted up to the protruding portion, the inside bottom of recess is connected with first spring, the top welding of first spring has the elastic plate, vertical ascending draw-in groove has been seted up to the depressed part, the bottom center department of going up dental arch is provided with and expands bow mechanism.

Preferably, the arch expanding mechanism comprises two groups of adjusting boxes arranged at the center of the bottom end of the upper dental arch, a thread groove is formed in the inner center of each adjusting box, a threaded rod is connected to the inner threads of the thread groove, and one side, opposite to the threaded rod, of the threaded rod is connected through a threaded sleeve.

Preferably, fixed sleeves are fixedly arranged at two ends of the inner edge of the adjusting box, and one side, opposite to the fixed sleeves, is movably connected through a movable fixed rod.

Preferably, the protruding portion and the recessed portion may form an engaging and embedding structure, and the elastic plate and the lower dental arch form an elastic and retractable structure through the first spring.

Preferably, one side of the inside of the clamping groove is further communicated with an inner groove, one end of the inner groove, which is close to the clamping groove, is provided with a trapezoidal plate extending into the clamping groove, one side of the trapezoidal plate, which faces the adjusting box, is connected with a meshing sleeve, and the meshing sleeve and the threaded rod can form a meshing fixing structure.

Preferably, the inclined plane direction of the trapezoidal plate is downward, and the trapezoidal plate and the inner groove can form a sliding structure through the extrusion of the elastic plate.

Preferably, a circular groove which is vertically downward is formed in one end of the top of the trapezoidal plate, a second spring is connected to the bottom end of the inside of the circular groove, a clamping column is welded to the top of the second spring, and a clamping groove which is connected with the clamping column in a clamping mode is further formed in the top of the inside of the inner groove.

The multidirectional expander according to claim, wherein: the meshing fixing strength of the meshing sleeve and the threaded rod is greater than the connecting strength between the threaded sleeve and the threaded rod.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention can detect when the user closes the mouth up and down during the process of expanding the mouth, the upper dental arch and the lower dental arch can be clamped and embedded together when the user closes the mouth, the concave part of the upper dental arch can extrude the elastic plate in the process of embedding the upper dental arch and the lower dental arch so as to compress the first spring to extrude the elastic plate into the groove, the upper dental arch and the lower dental arch can be embedded together, the user can have a resistance to block in the process of closing the mouth each time, after the upper dental arch expands the mouth to a certain degree, the clamping groove and the central surface of the elastic plate are positioned on the same plane, at the moment, the elastic plate can enter the clamping groove when the user closes the mouth, the process can not extrude the elastic plate, so that the user can obviously feel that the upper dental arch is expanded after closing the mouth, the dental arch expansion device does not need to be taken down periodically to detect the arch expansion degree in the using process, and only needs to be detached after being installed in the oral cavity for the first time until the arch expansion is finished, so that the discomfort of the user who needs to detach and install periodically is reduced;

2. in the process of expanding the arch through the arch expanding mechanism, the threaded rod can be driven to rotate by rotating the threaded sleeve, the threaded rod rotates to move the adjusting box towards two sides through the threaded groove, so that the arch of the upper arch can be expanded towards two sides, and the two ends of the upper front tooth sleeve can be inwards contracted by tensile force while the arch of the upper arch is expanded towards two sides, so that the upper front teeth of a user can be inwards contracted, and the time that the arch of two sides of the user is expanded and the upper front teeth need to be independently contracted is saved;

3. when a user uses the device, the two sides of the device can be expanded to different extents, when the device expands the bow through the threaded sleeve and the threaded rod, one side of each side of the device can be expanded first, the elastic plate at one end after expansion enters the clamping groove can extrude the trapezoidal plate to move towards the inner groove, the trapezoidal plate can drive the meshing sleeve to move towards the threaded rod in the moving process, and finally the meshing sleeve can be meshed to clamp the threaded rod. (in the process of expanding the arch, the device expands the arch symmetrically, then because one side of the patient expands the arch to a degree less than the other side, the one side expands the arch completely, then the one side controls the threaded rod of the arch to be engaged and locked, thus when the other side expands the arch, the other side does not expand the arch continuously because the threaded rod of the expanded arch is locked, and only the other side does not expand the arch continuously at the same time)

Drawings

FIG. 1 is a perspective view of an upper arch of the present invention;

FIG. 2 is a perspective view of the lower arch of the present invention;

FIG. 3 is a schematic top view of the upper arch of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;

FIG. 5 is a schematic top view of a lower arch of the present invention;

FIG. 6 is a side view of the upper and lower arches of the present invention;

FIG. 7 is a top view of the trapezoidal plate and the adjustment box of the present invention;

fig. 8 is a schematic front view of the trapezoidal plate and the adjusting box of the present invention.

In the figure: 1. an upper dental arch; 101. an upper edge tooth socket; 102. an upper front tooth socket; 2. a lower dental arch; 201. a tooth socket is arranged at the lower side; 202. a lower front tooth socket; 3. a detection mechanism; 301. a recessed portion; 302. a protrusion; 303. a groove; 304. a first spring; 305. an elastic plate; 306. a card slot; 4. a bow expanding mechanism; 401. an adjusting box; 402. a thread groove; 403. a threaded rod; 404. a threaded sleeve; 5. fixing a sleeve; 6. fixing the rod; 7. an inner tank; 8. a trapezoidal plate; 801. a circular groove; 802. a second spring; 803. a snap post; 804. a clamping groove; 9. and (4) an engagement sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1-8, a multidirectional arch expander comprises an upper dental arch 1 and a lower dental arch 2, wherein upper dental sockets 101 are installed at two ends of the outer wall of the upper dental arch 1, an upper front dental socket 102 is installed at the front end surface of the outer wall of the upper dental arch 1, lower dental sockets 201 are installed at two ends of the outer wall of the lower dental arch 2, a lower front dental socket 202 is installed at the front end surface of the outer wall of the lower dental arch 2, a detection mechanism 3 capable of detecting whether the upper dental arch 1 is expanded or not is arranged between the upper dental arch 1 and the lower dental arch 2, the detection mechanism 3 comprises a sunken part 301 arranged at two ends of the bottom of the upper dental arch 1 and a protruding part 302 arranged at two ends of the top of the lower dental arch 2, the protruding part 302 is provided with a vertically downward groove 303, the inner bottom end of the groove 303 is connected with a first spring 304, an elastic plate 305 is welded at the top of the first spring 304, the sunken part 301 is provided with a vertically upward clamping groove 306, an arch expanding mechanism 4 is arranged at the center of the bottom end of the upper dental arch 1, when in use, firstly, the upper dental arch 1 is arranged at the upper part of the oral cavity of a user, the lower dental arch 2 is arranged at the lower part of the oral cavity, the upper dental arch 1 is fixed at the upper part of the oral cavity through the upper dental mouthpiece 101 and the upper front dental mouthpiece 102, the lower dental arch 2 is fixed at the lower part of the oral cavity through the lower dental mouthpiece 201 and the lower front dental mouthpiece 202, then the upper dental arch 1 is expanded through the arranged arch expanding mechanism 4, the user can detect according to the upper and lower closing of the oral cavity in the arch expanding process, the upper dental arch 1 and the lower dental arch 2 can be clamped and embedded together when the user closes the oral cavity, the sunken part 301 of the upper dental arch 1 can extrude the elastic plate 305 to compress the first spring 304 to extrude the elastic plate into the groove 303 in the arch expanding process, the upper dental arch 1 and the lower dental arch 2 can be embedded together, at the moment, the user has a resistance to obstruct in the process of closing the oral cavity each time, after the upper dental arch 1 is expanded to a certain degree, the clamping groove 306 and the center surface of the elastic plate 305 are located on the same plane, at the moment, the elastic plate 305 can enter the clamping groove 306 when the user closes the oral cavity, the elastic plate 305 cannot be extruded in the process, and therefore the user can obviously feel the relaxing feeling after closing the oral cavity, and the fact that the upper dental arch 1 is expanded can be judged.

As shown in fig. 1-8, the arch expanding mechanism 4 includes two sets of adjusting boxes 401 installed at the center of the bottom end of the upper dental arch 1, a thread groove 402 is formed in the center of the inside of the adjusting box 401, a thread rod 403 is connected to the inner thread of the thread groove 402, one side of the thread rod 403 opposite to the thread rod 404 is connected by installing a thread sleeve 404, in the arch expanding process, the thread rod 403 can be driven to rotate by rotating the thread sleeve 404, the thread rod 403 rotates to move the adjusting box 401 towards two sides through the thread groove 402, so that the upper dental arch 1 can expand the arch towards two sides, when the upper dental arch 1 expands the arch towards two sides, two ends of the upper front dental sleeve 102 can be contracted inwards by pulling force, so that the time that the user can contract the upper front teeth towards two sides to expand the arch and the upper front teeth need to contract separately is saved.

As shown in fig. 1 to 8, fixing sleeves 5 are further fixedly arranged at two ends of the inner edge of the adjusting box 401, one side, opposite to the fixing sleeves 5, is movably connected through a movable fixing rod 6, and in the process of expanding the arch, the direction of expanding the arch can be limited through the movable connection formed by the arranged fixing sleeves 5 and the fixing rod 6, so that the condition of the deviation of the direction of expanding the arch is avoided.

As shown in fig. 1-8, the protrusion 302 and the recess 301 can form a snap-fit structure, and the elastic plate 305 and the lower dental arch 2 form an elastic expansion structure through the first spring 304, so that during the arch expansion process, the user can feel resistance when closing the oral cavity to prevent the user from closing the oral cavity, and the resistance disappears after the arch expansion process is completed.

As shown in fig. 1 to 8, an inner groove 7 is further formed in one side inside the clamping groove 306, an inner trapezoidal plate 8 extending into the clamping groove 306 is arranged at one end of the inner groove 7 close to the clamping groove 306, a meshing sleeve 9 is connected to one side of the trapezoidal plate 8 facing the adjusting box 401, the meshing sleeve 9 and the threaded rod 403 can form a meshing fixing structure, a user can also have the situation that bow expansion degrees of two sides are different, when the bow expansion is performed through the screw sleeve 404 and the threaded rod 403, the bow expansion is firstly performed on two sides, when the elastic plate 305 at one end of the bow expansion is inserted into the clamping groove 306, the trapezoidal plate 8 can be extruded to move towards the inner groove 7, the meshing sleeve 9 can be driven to move towards the threaded rod 403 in the moving process of the trapezoidal plate 8, and finally the meshing sleeve 9 can be meshed to clamp the threaded rod 403.

As shown in fig. 1 to 8, the inclined surface of the trapezoidal plate 8 faces downward, the trapezoidal plate 8 can form a sliding structure with the inner groove 7 by being pressed by the elastic plate 305, and when the elastic plate 305 enters the inside of the slot 306, the trapezoidal plate 8 can be pressed by pressing the inclined surface of the trapezoidal plate 8.

As shown in fig. 1 to 8, a circular groove 801 is formed vertically downward at one end of the top of the trapezoidal plate 8, a second spring 802 is connected to the bottom end inside the circular groove 801, a locking post 803 is welded to the top of the second spring 802, a locking groove 804 connected to the locking post 803 in a locking manner is further formed in the top inside the inner groove 7, the position of the locking post 803 of the trapezoidal plate 8 moves towards the direction of the adjusting box 401 when the inner groove 7 moves, the locking post 803 always has an elastic force pressed upward by the second spring 802 when the position of the locking post 803 changes, and the locking post 803 is locked inside the locking groove 804 when the locking post 803 is aligned with the locking groove 804, so that the trapezoidal plate 8 is fixed.

As shown in fig. 1 to 8, the engagement fixing strength of the engagement sleeve 9 and the threaded rod 403 is greater than the connection strength between the threaded sleeve 404 and the threaded rod 403, and since the engagement fixing strength of the engagement sleeve 9 and the threaded rod 403 is greater than the connection strength between the threaded sleeve 404 and the threaded rod 403, the threaded rod 403 engaged and fixed with the engagement sleeve 9 is fixed when the threaded sleeve 404 is rotated, and at this time, the other side of the position where the bow expansion is not completed is expanded until the two sides of the position are completely expanded.

The working principle is as follows: when in use, firstly, the upper dental arch 1 is arranged at the upper part of the oral cavity of a user, the lower dental arch 2 is arranged at the lower part of the oral cavity, the upper dental arch 1 is fixed at the upper part of the oral cavity through the upper dental mouthpiece 101 and the upper front dental mouthpiece 102, the lower dental arch 2 is fixed at the lower part of the oral cavity through the lower dental mouthpiece 201 and the lower front dental mouthpiece 202, then the upper dental arch 1 is expanded through the arranged arch expanding mechanism 4, the user can detect according to the upper and lower closing of the oral cavity in the arch expanding process, the upper dental arch 1 and the lower dental arch 2 can be clamped and embedded together when the user closes the oral cavity, the sunken part 301 of the upper dental arch 1 can extrude the elastic plate 305 to compress the first spring 304 to extrude the elastic plate into the groove 303 in the arch expanding process, the upper dental arch 1 and the lower dental arch 2 can be embedded together, at the moment, the user has a resistance to obstruct in the process of closing the oral cavity each time, after the upper dental arch 1 expands the arch to a certain degree, the central planes of the clamping groove 306 and the elastic plate 305 are positioned on the same plane, at this time, when a user closes the oral cavity, the elastic plate 305 enters the clamping groove 306, the elastic plate 305 is not extruded in the process, so the user can obviously feel the sense of relaxation after closing the oral cavity to judge that the upper dental arch 1 is expanded, in the process of expanding the arch, the threaded rod 403 can be driven to rotate by rotating the screw sleeve 404, the threaded rod 403 rotates to move the adjusting box 401 towards two sides through the threaded groove 402, so that the upper dental arch 1 can be expanded towards two sides, when the upper dental arch 1 expands towards two sides, two ends of the upper front tooth sleeve 102 can be contracted inwards by tensile force, so that the upper front teeth of the user can be contracted inwards to save the time that the arch expansion of two sides of the user needs to be contracted independently, in the process of expanding the arch, the movable connection formed by the fixed sleeve 5 and the fixed rod 6 can limit the arch expanding direction, so that the condition of the arch expanding direction deviation is avoided, and the user can also have the condition of different arch expanding degrees at two sides, at the moment, when the arch expanding is carried out through the screw sleeve 404 and the threaded rod 403, the arch expanding is finished at one side, the elastic plate 305 at one end after the arch expanding is finished can extrude the trapezoidal plate 8 to move towards the inner groove 7 when entering the clamping groove 306, the engagement sleeve 9 can be driven to move towards the direction of the threaded rod 403 in the moving process of the trapezoidal plate 8, finally the engagement sleeve 9 can be engaged to clamp the threaded rod 403, the position of the clamping column 803 of the trapezoidal plate 8 can also move towards the direction of the adjusting box 401 when the inner groove 7 moves, the clamping column 803 has upward extrusion elasticity by the second spring 802 in the changing process of the position of the clamping column 803, and the clamping column 803 is clamped inside the clamping groove 804 when the clamping column 803 is aligned with the groove 804, so that the clamping column 803 can be clamped inside the clamping groove 804, so that the trapezoidal plate can be clamped 8, since the meshing fixing strength of the meshing sleeve 9 and the threaded rod 403 is greater than the connecting strength between the threaded sleeve 404 and the threaded rod 403, the threaded rod 403 meshed and fixed with the meshing sleeve 9 is fixed when the threaded sleeve 404 is rotated, and the bow expansion is continued only at the position where the other side is not expanded until the bow expansion is completed on both sides.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a multidirectional expansion bow ware, includes upper dental arch (1) and lower dental arch (2), its characterized in that: the upper dental brace (101) is installed at two ends of the outer wall of the upper dental arch (1), the upper front dental brace (102) is installed on the front end face of the outer wall of the upper dental arch (1), the lower dental brace (201) is installed at two ends of the outer wall of the lower dental arch (2), the lower front dental brace (202) is installed on the front end face of the outer wall of the lower dental arch (2), a detection mechanism (3) which can detect whether the upper dental arch (1) is expanded or not is arranged between the upper dental arch (1) and the lower dental arch (2), the detection mechanism (3) comprises a sunken part (301) which is arranged at two ends of the bottom of the upper dental arch (1) and a protruding part (302) which is arranged at two ends of the top of the lower dental arch (2), a vertical downward groove (303) is arranged on the protruding part (302), a first spring (304) is connected with the inner bottom end of the groove (303), and an elastic plate (305) is welded at the top of the first spring (304), the sunken part (301) is provided with a vertical upward clamping groove (306), and the center of the bottom end of the upper dental arch (1) is provided with an arch expanding mechanism (4).

2. The multidirectional expander according to claim 1, wherein: the arch expanding mechanism (4) comprises two groups of adjusting boxes (401) arranged at the center of the bottom end of the upper dental arch (1), a thread groove (402) is formed in the center of the inside of each adjusting box (401), a threaded rod (403) is connected to the inner thread of each thread groove (402), and one side, opposite to the threaded rod (403), of each threaded rod is connected through a thread sleeve (404).

3. The multidirectional expander according to claim 2, wherein: fixed cover (5) are still fixed to be provided with at the inside edge both ends of regulating box (401), swing joint is carried out through activity dead lever (6) to the relative one side of fixed cover (5).

4. The multidirectional expander according to claim 1, wherein: the protruding part (302) and the recessed part (301) can form a clamping and embedding structure, and the elastic plate (305) and the lower dental arch (2) form an elastic telescopic structure through a first spring (304).

5. The multidirectional expander according to claim 1, wherein: the inside one side of draw-in groove (306) still communicates and has seted up inside groove (7), the one end that inside groove (7) are close to draw-in groove (306) is provided with trapezoidal plate (8) that extend to draw-in groove (306) inside, trapezoidal plate (8) are connected with meshing cover (9) towards one side of regulating box (401), meshing cover (9) can constitute meshing fixed knot with threaded rod (403) and construct.

6. The multidirectional expander according to claim 5, wherein: the inclined surface direction of the trapezoidal plate (8) faces downwards, and the trapezoidal plate (8) can form a sliding structure with the inner groove (7) through extrusion of the elastic plate (305).

7. The multidirectional expander according to claim 5, wherein: vertical decurrent circular recess (801) have been seted up to the top one end of trapezoidal plate (8), the inside bottom of circular recess (801) is connected with second spring (802), the top welding of second spring (802) has block post (803), the inside top of inside groove (7) still is provided with block groove (804) of being connected with block post (803) block.

8. The multidirectional expander according to claim 1, wherein: the fixed strength of the engagement between the engagement sleeve (9) and the threaded rod (403) is greater than the connection strength between the threaded sleeve (404) and the threaded rod (403).