Oral cavity opening support

Abstract

The utility model belongs to the field of auxiliary instruments in the department of stomatology, and particularly relates to an oral cavity opening support. The device comprises a mounting box with an upward opening, two supporting rods which are in bilateral symmetry are arranged above the mounting box, one ends of the two supporting rods are hinged to the interior of the mounting box, an adjusting assembly is arranged between the hinged ends of the two supporting rods and the mounting box, openings are formed in the inward side walls of the two supporting rods, and the two supporting rods are hinged to the mounting box. Mounting grooves are formed in the outward side walls of the two supporting rods, through holes communicated with the openings are formed in the bottoms of the mounting grooves, transmission rods capable of freely rotating penetrate through the through holes, mounting plates are fixed to the ends, located at the openings, of the transmission rods, and light sources capable of freely rotating by angles to illuminate the interior of the oral cavity are hinged to the mounting plates; a driving assembly is arranged between the other end of the transmission rod and the mounting groove, and a power supply for supplying power to the light source is arranged on the two supporting rods, so that the oral cavity of the patient can be kept in an open state for a long time, and the interior of the oral cavity of the patient can be illuminated in different directions.

Description

Technical Field

[0001] The utility model belongs to the field of stomatology auxiliary instruments, in particular to an oral opening bracket. Background Art

[0002] When oral patients seek medical treatment, the doctor needs to keep the patient's mouth open for a long time when diagnosing and treating the patient's oral cavity, so as to facilitate the search and treatment of the affected area. This causes the patient's facial muscles to become fatigued after opening their mouth for a long time, making it difficult for them to persist in long-term treatment. They need proper relaxation and rest, which interrupts the doctor's diagnosis and treatment of the patient's oral cavity and prolongs the time of diagnosis and treatment. Therefore, an oral opening stent is needed in oral treatment to support the patient's oral cavity to open.

[0003] However, the existing oral opening bracket does not have a light source for multi-angle illumination of the inside of the patient's mouth, so the doctor needs to insert an oral light into the patient's mouth separately during diagnosis and treatment, and turn the direction of the oral light to diagnose and treat the inside of the mouth, which greatly increases the difficulty of the doctor's work. Utility Model Content

[0004] The purpose of the utility model is to provide an oral opening bracket, which can keep the patient's oral cavity open for a long time and can illuminate different directions inside the patient's oral cavity.

[0005] The oral opening bracket comprises a mounting box with an opening upward, and two support rods that are symmetrical on both sides and are used to support the upper and lower jaws of the patient are arranged above the mounting box, one end of the two support rods is hinged in the mounting box, and an adjustment component for adjusting the relative swinging angle of the two support rods is arranged between the hinged ends of the two support rods and the mounting box, an opening is opened on the inward side wall of the two support rods, and a mounting groove is opened on the outward side wall of the two support rods, and a through hole communicating with the opening is opened at the bottom of the mounting groove, and a freely rotatable transmission rod is passed through the through hole, and a mounting plate is fixed on one end of the transmission rod located at the opening, and a light source that can be freely rotated to illuminate the inside of the oral cavity is hinged on the mounting plate, and a driving component for driving the transmission rod to rotate is arranged between the other end of the transmission rod and the mounting groove, and a power supply for supplying energy to the light source is arranged on the two support rods.

[0006] Furthermore, the adjustment component includes two baffles, which are respectively fixed on the hinged ends of the two support rods, a reset piece is arranged between the two baffles, a freely rotatable bidirectional screw is horizontally installed in the installation box, one end of the bidirectional screw independently passes through the side wall of the installation box, an adjusting wheel is fixed on the end of the bidirectional screw passing through the side wall, and a locking component for locking the adjusting wheel after rotation is arranged on the adjusting wheel, two movable plates symmetrically arranged on the left and right are mounted on the bidirectional screw, threaded holes threadedly matched with the bidirectional screw are opened on the two movable plates, and the inward side walls of the two movable plates are respectively in contact with the two baffles.

[0007] Furthermore, chamfers are provided at the corners between the inward side walls and the tops of the two movable plates.

[0008] Furthermore, the driving assembly includes a worm wheel and a worm that mesh with each other. The worm wheel is mounted on one end of the transmission rod located in the mounting groove. A freely rotatable rotating shaft is arranged in the mounting groove along the length direction of the support rod. The worm is fixed to one end of the rotating shaft, and a rotating wheel for finger rotation is fixed to the other end of the rotating shaft. A number of positioning clips for positioning the rotating shaft are fixed in the mounting groove.

[0009] Furthermore, all support rods are provided with shielding plates for shielding the installation grooves.

[0010] Furthermore, all the support rods are provided with grooves, the power supply is installed in the grooves, and the support rods are provided with sealing plates for sealing the grooves.

[0011] Furthermore, the corners between the outward side walls of the two support rods and the end portions of the swing ends are formed into oblique angles.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Insert two support rods into the patient's mouth, and then swing the two support rods outward in relative directions to support the patient's upper and lower jaws, so that the patient's mouth can remain open for a long time; the driving component drives the mounting plate to rotate in forward and reverse directions through the transmission rod, so that the mounting plate drives the light source to rotate in forward and reverse directions, so that the light source can illuminate different directions of the patient's mouth, so there is no need to insert other lighting equipment to illuminate different directions of the patient's mouth, avoiding crowding and reducing the difficulty of the doctor's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A magnified schematic diagram of area a in the middle;

[0016] Figure 3 It is a three-dimensional diagram of the utility model;

[0017] Figure 4 It is an exploded view of the utility model;

[0018] Figure 5 for Figure 4 A magnified schematic diagram of area b;

[0019] The names of the components in the figure are: 1, support rod 2, power supply 3, sealing plate 4, rotating shaft 5, shielding plate 6, positioning clamp 7, rotating wheel 8, baffle 9, mounting box 10, adjusting wheel 11, moving plate 12, bidirectional screw 13, compression spring 14, worm gear 15, worm 16, mounting plate 17, light source 18, transmission rod. DETAILED DESCRIPTION

[0020] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0021] Example 1

[0022] The oral opening bracket described in this embodiment is as follows Figure 1 , Figure 2 and Figure 4 As shown, it includes a mounting box 9 with an opening upward, and two support rods 1 that are symmetrical on both sides and used to support the upper and lower jaws of the patient are arranged above the mounting box 9. One end of the two support rods 1 is hinged in the mounting box 9, and the support rod 1 is hinged in the mounting box 9 through a pivot. A through hole for the pivot to pass through is opened on one end of the support rod 1, and the pivot is fixed in the mounting box 9. Of course, bearing hinges can also be used. Generally, the structure of the bearing has an inner ring and an outer ring. When realizing the hinge, the support rod 1 can be fixed to the outer ring, and the inner ring can be fixed to the inner wall of the mounting box 9, so that the support rod 1 is hinged in the mounting box 9;

[0023] The corner between the outward side wall of the two support rods 1 and the end of the swing end is set at an oblique angle, and the two support rods 1 swing inward to fit together. When the two support rods 1 are inserted into the patient's mouth, the support rods 1 with an oblique angle are more convenient for the doctor to align the swing end with the patient's mouth, and can avoid the corner from causing damage to the patient's mouth;

[0024] To further explain, Figure 1 , Figure 3 and Figure 4As shown, the present embodiment preferably includes two baffles 8, the two baffles 8 are respectively fixed on the hinged ends of the two support rods 1, and a reset member is arranged between the two baffles 8. In the present embodiment, the reset member is a compression spring 13, and the two ends of the compression spring 13 are respectively fixed on the two baffles 8. When the compression spring 13 is in an extended state, the two support rods 1 are in a fitted state. When the two support rods 1 need to support the upper and lower jaws of the patient, the two support rods 1 are swung outwards so that the two support rods 1 are respectively fitted with the upper and lower teeth and push the upper and lower jaws of the patient to open. When the two support rods 1 swing outwards, the two baffles 8 are driven to swing relative to each other and compress the compression spring 13. When the two support rods 1 lose the force to swing outwards, The compression spring 13 will stretch outward, thereby driving the two support rods 1 to fit each other again through the baffle 8; of course, the reset member can also be a spring sheet, and the two ends of the spring sheet are respectively fixed to the two baffles 8; a freely rotatable bidirectional screw 12 is horizontally installed in the installation box 9, and one end of the bidirectional screw 12 independently passes through the side wall of the installation box 9, and an adjusting wheel 10 is fixed to the end of the bidirectional screw 12 passing through the side wall, and the bidirectional screw 12 is located below the two baffles 8. A groove for installing one end of the bidirectional screw 12 is provided on the left inner wall of the installation box 9, and a through hole for the other end of the bidirectional screw 12 to pass through is provided on the right side wall of the installation box 9. When the doctor turns the adjusting wheel 10 by hand, the adjusting wheel 10 will drive the bidirectional screw 12 to rotate The adjusting wheel 10 is provided with a locking assembly for locking the adjusting wheel 10 after rotation. In the present embodiment, the locking assembly adopts a screw. The adjusting wheel 10 is provided with threaded holes communicating with each other on the left and right. The screw is inserted into the threaded hole and threadedly matched with the threaded hole. The threaded end of the screw is pressed against the mounting box 9. When in use, the screw is rotated so that the threaded end of the screw squeezes the mounting box 9, thereby locking the adjusting wheel 10 after rotation. Of course, the locking assembly can also adopt a rubber ring. A positioning rod is vertically fixed at the bottom of the mounting box 9. Anti-slip grooves are provided on the adjusting wheel 10 and the positioning rod. When the adjusting wheel 10 is rotated, the rubber ring is put on the adjusting wheel 10, and the rubber ring is pulled to pull out a part of the rubber ring. The segment ring body is sleeved on the positioning rod, and the friction force of the rubber ring is used to prevent the adjusting wheel 10 from rotating; two movable plates 11 are sleeved on the bidirectional screw 12, and threaded holes that are threadedly matched with the bidirectional screw 12 are provided on the two movable plates 11. The inward side walls of the two movable plates 11 are in contact with the two baffles 8 respectively, and the front and rear side walls of the two movable plates 11 are in contact with the front and rear inner side walls of the installation box 9 to prevent the two movable plates 11 from rotating when they move relative to each other; chamfers are provided at the corners between the inward side walls and the top of the two movable plates 11. In this embodiment, the chamfers are rounded corners. After the two movable plates 11 are chamfered, it can be avoided that the corners on them scratch the surface of the baffle 8 when they contact with the corresponding baffle 8;During use, the two support rods 1 are first inserted into the patient's oral cavity, and the doctor rotates the adjusting wheel 10 by hand, which drives the bidirectional screw 12 to rotate, and the two movable plates 11 move inward synchronously in cooperation with the threads of the bidirectional screw 12, and simultaneously push the two baffles 8 to swing inward, and the two baffles 8 will compress the compression spring 13 when they swing, and the two baffles 8 will respectively drive the two support rods 1 to swing outward synchronously when they swing, so that the two support rods 1 are respectively in contact with the upper and lower teeth and push the patient's upper and lower jaws to open, and then the rotated adjusting wheel 10 is locked by the screw, and the upper and lower jaws of the patient are stretched open by adjusting the swinging angle of the two support rods 1, so that the patient's oral cavity can be kept open for a long time; when the adjusting wheel 10 rotates, the two support rods 1 will lose their The force of outward swinging will cause the compression spring 13 to stretch outward, thereby driving the two support rods 1 to fit together again through the baffle 8; this section of the scheme as a whole constitutes an adjustment component for adjusting the relative swing angle of the two support rods 1; of course, the adjustment component can also use bolts and tension springs, and the hinged ends of the two support rods 1 are fixed with pull rods, and the pull rods on the left and right sides are respectively fixed with tension springs between the left and right inner walls of the installation box 9. When the tension spring is in a contracted state, the two support rods 1 fit together, and a threaded hole for passing the bolt is opened at the center of the bottom of the installation box 9, which is connected inside and outside. The bolt is located directly below the surface of the two support rods 1 that fit together after swinging. When in use, by turning the bolt, the bolt pushes the bottom ends of the two support rods 1 upward, so that the two support rods 1 swing at an angle with their respective hinge points as the center of the circle. ;

[0025] The two support rods 1 have openings on their inner side walls. In this embodiment, the openings are V-shaped, but U-shaped structures are also possible. The openings are used to avoid the light source 17 during rotation to prevent the light source 17 from being interfered with or blocked.

[0026] The outward side walls of the two support rods 1 are provided with mounting grooves, the cross section of which is a rectangular structure and extends to the upper and lower ends of the support rods 1;

[0027] A through hole communicating with the opening is provided at the bottom of the installation groove, and a freely rotatable transmission rod 18 is installed in the through hole. A mounting plate 16 is fixed to one end of the transmission rod 18 located at the opening. The through hole is provided at the upper end of the installation groove. When the transmission rod 18 rotates, the mounting plate 16 is driven to rotate.

[0028] A light source 17 that can be freely rotated to illuminate the inside of the oral cavity is hinged on the mounting plate 16. The light source 17 is an LED lamp. The light source 17 and the mounting plate 16 are hinged by bolts. Both the light source 17 and the mounting plate 16 are fixed with connecting plates. One of the connecting plates is provided with a through hole for the bolt to pass through, and the other connecting plate is provided with a threaded hole that is threadedly matched with the screw. When adjusting the angle of the light source 17, it is only necessary to rotate the light source 17 so that the light source 17 and the connecting plate fixed thereto are swung at an angle with the bolt as the center, and then the bolt is rotated to lock the light source 17 and the connecting plate fixed thereto after the swing angle, so that the irradiation angle of the light source 17 can be adjusted; of course, bearing hinges or pivot hinges can also be used;

[0029] To further explain, Figure 1 , Figure 2 and Figure 5 As shown, the present embodiment preferably comprises a worm wheel 14 and a worm 15 meshing with each other, the worm wheel 14 is sleeved on one end of the transmission rod 18 located in the mounting groove, a freely rotatable rotating shaft 4 is arranged in the mounting groove along the length direction of the support rod 1, the worm 15 is fixed to one end of the rotating shaft 4, a rotating wheel 7 for finger rotation is fixed to the other end of the rotating shaft 4, and a plurality of positioning clips 6 for positioning the rotating shaft 4 are fixed in the mounting groove; the rotating wheel 7 is located at the lower end of the mounting groove, so that after the two support rods 1 are inserted into the patient's oral cavity, the medical staff can control the rotating wheel 7 exposed outside the oral cavity; the positioning clip 6 is a commonly used "U"-shaped clip, the worm wheel 14 and the rotating wheel 7 are respectively fitted with the adjacent positioning clips 6 to prevent the rotating shaft 4 from moving, and by fitting the rotating shaft 4 on the positioning clip 6, without affecting While it rotates, it can prevent the rotating shaft 4 from being displaced or swinging; when in use, the doctor can rotate the wheel 7 to make the wheel 7 drive the rotating shaft 4 to rotate, the rotating shaft 4 drives the worm 15 to rotate, the worm 15 drives the worm wheel 14 to rotate, the worm wheel 14 drives the mounting plate 16 to rotate through the transmission rod 18, and the mounting plate 16 drives the light source 17 hinged thereto to rotate, so that the light source 17 can illuminate different directions in the oral cavity, which is convenient for the doctor to diagnose and treat the inside of the oral cavity; this section of the scheme as a whole constitutes a driving component for driving the transmission rod 18 to rotate; of course, the driving component can also use a micro motor, fix the transmission rod 18 to the micro motor, and drive the transmission rod 18 to rotate through the micro motor, thereby driving the light source 17 to rotate to different angles, and the direction of rotation is determined by turning off the micro motor.

[0030] All support rods 1 are provided with shielding plates 5 for shielding the installation slots. The shielding plates 5 are fixed to the support rods 1 by gluing or screwing. The shielding plates 5 are used to shield the components in the installation slots to prevent the teeth from getting stuck in the installation slots when the support rods 1 come into contact with the patient's teeth, and to prevent the teeth and external objects from pushing the internal components to cause damage;

[0031] A power source 2 for supplying energy to the light source 17 is provided on the two support rods 1. A groove is opened on all the support rods 1, and the power source 2 is installed in the groove. A sealing plate 3 for sealing the groove is provided on the support rod 1. In this embodiment, the power source 2 is a lithium-ion battery, and of course a nickel-metal hydride battery or a lead-acid battery can also be used. The sealing plate 3 is fixed to the support rod 1 by gluing or screwing. The sealing plate 3 is used to seal the groove to prevent the power source 2 from falling out and external water from entering.

[0032] In actual use, first turn on the two light sources 17, and power the light sources 17 through the power supply 2. After inserting the two support rods 1 into the patient's mouth, the doctor manually turns the adjusting wheel 10, which drives the bidirectional screw 12 to rotate. The two movable plates 11 move inward synchronously in cooperation with the threads of the bidirectional screw 12, and simultaneously push the two baffles 8 to swing inward. When the two baffles 8 swing, the compression spring 13 is compressed, and when the two baffles 8 swing, they respectively drive the two support rods 1 to swing outward synchronously, so that the two support rods 1 are respectively attached to the upper and lower teeth and push the patient's upper and lower jaws to open, and then the screws are used to adjust the rotation. The wheel 10 is locked, and the upper and lower jaws of the patient are stretched open by adjusting the swing angles of the two support rods 1, so that the patient's mouth can remain open for a long time; then the doctor can rotate the rotating wheel 7 to make the rotating wheel 7 drive the rotating shaft 4 to rotate, the rotating shaft 4 drives the worm 15 to rotate, the worm 15 drives the worm wheel 14 to rotate, the worm wheel 14 drives the mounting plate 16 to rotate through the transmission rod 18, and the mounting plate 16 drives the light source 17 hinged thereto to rotate, so that the light source 17 can illuminate different directions in the oral cavity, so that different directions of the patient's oral cavity can be illuminated without inserting other lighting equipment, avoiding crowding and reducing the difficulty of the doctor's work.

Claims

1. An oral opening bracket, comprising a mounting box (9) with an opening facing upward, characterized in that: Two support rods (1) are arranged above the installation box (9) and are symmetrical with each other and are used to support the upper and lower jaws of the patient. One end of the two support rods (1) is hinged in the installation box (9). An adjustment component for adjusting the relative swing angle of the two support rods (1) is arranged between the hinged ends of the two support rods (1) and the installation box (9). An opening is provided on the inward side walls of the two support rods (1). An installation groove is provided on the outward side walls of the two support rods (1). The bottom is provided with a through hole communicating with the opening, a freely rotatable transmission rod (18) is passed through the through hole, a mounting plate (16) is fixed to one end of the transmission rod (18) located at the opening, a light source (17) for illuminating the inside of the oral cavity is hingedly connected to the mounting plate (16) and can be freely rotated at an angle, a driving assembly for driving the transmission rod (18) to rotate is arranged between the other end of the transmission rod (18) and the mounting groove, and a power source (2) for supplying energy to the light source (17) is arranged on the two support rods (1).

2. The oral opening bracket according to claim 1, characterized in that: The adjustment component comprises two baffles (8), the two baffles (8) are respectively fixed on the hinged ends of the two support rods (1), a reset member is arranged between the two baffles (8), a freely rotatable bidirectional screw (12) is horizontally installed in the installation box (9), one end of the bidirectional screw (12) independently passes through the side wall of the installation box (9), an adjustment wheel (10) is fixed on the end of the bidirectional screw (12) passing through the side wall, and a locking component for locking the adjustment wheel (10) after rotation is arranged on the adjustment wheel (10), two movable plates (11) are mounted on the bidirectional screw (12) and are symmetrically arranged on the left and right, and threaded holes are opened on the two movable plates (11) and threadedly matched with the bidirectional screw (12), and the inward side walls of the two movable plates (11) are respectively in contact with the two baffles (8).

3. The oral opening bracket according to claim 2, characterized in that: Chamfers are provided at the corners between the inward side walls and the tops of the two movable plates (11).

4. The oral opening bracket according to claim 1, characterized in that: The driving assembly comprises a worm wheel (14) and a worm (15) meshing with each other. The worm wheel (14) is mounted on one end of a transmission rod (18) located in a mounting groove. A freely rotatable rotating shaft (4) is arranged in the mounting groove along the length direction of the support rod (1). The worm (15) is fixed to one end of the rotating shaft (4). A rotating wheel (7) for finger rotation is fixed to the other end of the rotating shaft (4). A plurality of positioning clips (6) for positioning the rotating shaft (4) are fixed in the mounting groove.

5. The oral opening bracket according to claim 4, characterized in that: All support rods (1) are provided with shielding plates (5) for shielding the installation grooves.

6. The oral opening bracket according to claim 1, characterized in that: All the support rods (1) are provided with grooves, the power source (2) is installed in the grooves, and the support rods (1) are provided with sealing plates (3) for sealing the grooves.

7. The oral opening bracket according to claim 1, characterized in that: The corners between the outward side walls of the two support rods (1) and the swing ends are formed into oblique angles.

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