Angle-adjustable oral cavity mouth gag

Abstract

The utility model discloses an angle-adjustable oral cavity mouth gag, and relates to the technical field of medical instruments. Comprising a bottom shell, the upper side of the bottom shell is provided with a top shell, the inner wall of the bottom shell is rotatably matched with a bidirectional lead screw, the bidirectional lead screw is in threaded fit with two driving blocks, the bidirectional lead screw is provided with a worm gear, and one side of the inner wall of the bottom shell is rotatably matched with a worm meshed with the worm gear; and two connecting rods are arranged between the two driving blocks and the top shell, and the two ends of the connecting rods are rotationally matched with the driving blocks and the top shell correspondingly. By arranging the bidirectional screw rod, when the supporting size of the oral cavity mouth gag needs to be adjusted, the knob is rotated, the driving block is moved under the transmission of the worm and the worm gear, and the top shell and the bottom shell are opened towards the two sides under the action of the connecting rod, so that the oral cavity of a patient is supported and adjusted, the operation is convenient, the use is simple, and the use experience of the patient is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an angle-adjustable oral cavity opener. Background Technology

[0002] An oral mouth opener is a medical device specifically designed to help doctors or dentists keep a patient's mouth open during examinations and treatments. It is mainly used for patients who are unable to open their mouths on their own for various reasons, or in situations where it is necessary to keep the mouth permanently open during certain treatments.

[0003] Chinese patent application number CN202320218181.X discloses an adjustable oral mouth opener, including a main body and an adjustment component. The adjustment component includes a side plate, an adjustment rod and a rotating head. The main body includes an upper plate and a lower plate, which are rotatably connected. The upper plate and the lower plate have multiple slots. The adjustment component is used to adjust the angle of the main body so that the main body can be adapted to patients with different oral cavity sizes.

[0004] In the aforementioned prior art, the adjusting rod is inserted into the slot on the upper plate of the main body by rotating the rotating head, which lifts the main body and then inserts it into the patient's mouth. When the angle is not suitable, the doctor removes the main body and repeats the above operation until the angle is adjusted to a suitable angle for the patient. However, in actual use, it is difficult to adjust the opening and closing angle before inserting the main body, and multiple adjustments affect the efficiency of use and the patient's user experience.

[0005] In view of this, the present invention proposes an angle-adjustable oral cavity opener. Utility Model Content

[0006] The purpose of this invention is to provide an angle-adjustable oral cavity opener to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an angle-adjustable oral cavity opener, including a bottom shell, a top shell provided on the upper side of the bottom shell, a bidirectional lead screw rotatably fitted on the inner wall of the bottom shell, two drive blocks threaded on the bidirectional lead screw, a worm wheel mounted on the bidirectional lead screw, and a worm gear meshing with the worm wheel rotatably fitted on one side of the inner wall of the bottom shell.

[0008] Two connecting rods are installed between the two drive blocks and the top shell, and the two ends of the connecting rods are rotatably engaged with the drive blocks and the top shell respectively. The bottom shell and the top shell are provided with a snap-fit ​​mechanism on opposite sides.

[0009] Preferably, the locking mechanism includes a groove formed on one side of the bottom shell and the top shell, a slider that slides and elastically engages with the inner wall of the groove, an insert rod fixedly connected to the lower side of the slider, and a push plate fixedly connected to one side of the slider.

[0010] Preferably, a connecting groove is provided on the opposite side of the bottom shell and the top shell, a connecting plate is slidably fitted on the inner wall of the connecting groove, and a slot is provided on the opposite side of the two connecting plates, and the insert rod cooperates with the slot.

[0011] Preferably, two limiting grooves are provided on the upper side of the bottom shell, and the driving block slides and engages with the inner wall of the limiting groove.

[0012] Preferably, a knob is installed at the end of the worm gear, and two telescopic limiting rods are installed between the bottom shell and the top shell.

[0013] Preferably, a lower toothed block is provided on the lower side of the bottom shell, and an upper toothed block is provided on the upper side of the top shell. The lower toothed block and the upper toothed block are respectively fixedly connected to the corresponding connecting plates.

[0014] Preferably, a connecting shell is fixedly connected to one side of the bottom shell, and a T-shaped handle is slidably fitted onto the inner wall of the connecting shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] An angle-adjustable oral mouth opener is provided. By setting a two-way lead screw, when it is necessary to adjust the support size of the oral mouth opener, the knob is turned. Under the transmission of the worm gear and worm wheel, the drive block moves, and under the action of the connecting rod, the top shell and bottom shell open to both sides, thereby realizing the adjustment of the support for the patient's oral cavity. It is convenient to operate, simple to use, and improves the patient's user experience.

[0017] Meanwhile, by setting up a snap-fit ​​mechanism, the connecting plate can be easily fixed in place, thereby facilitating the quick disassembly and replacement of the upper and lower tooth blocks, improving the convenience and safety of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom shell connection structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom shell of this utility model;

[0021] Figure 4 This is a schematic diagram of the top shell structure of this utility model.

[0022] In the diagram: 1. Bottom shell; 2. Top shell; 3. Two-way lead screw; 4. Drive block; 5. Worm gear; 6. Worm; 7. Connecting rod; 8. Snap-fit ​​mechanism; 81. Slide groove; 82. Slider; 83. Insert rod; 84. Push plate; 9. Connecting groove; 10. Connecting plate; 11. Slot; 12. Limiting groove; 13. Knob; 14. Lower toothed block; 15. Upper toothed block; 16. Connecting shell; 17. T-shaped handle; 18. Telescopic limiting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Application instructions: "During oral examinations or treatments, oral mouth openers are required. The oral mouth opener provided by this utility model is specifically designed for patients who are unable to open their mouths on their own or who need to keep their mouths open. Before using this device, it is necessary to disinfect the device or replace the corresponding tooth blocks to ensure the normal use of the device."

[0025] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: an angle-adjustable oral mouth opener, including a bottom shell 1, a top shell 2 provided on the upper side of the bottom shell 1, a bidirectional lead screw 3 rotatably fitted on the inner wall of the bottom shell 1, two drive blocks 4 threadedly fitted on the bidirectional lead screw 3, a worm wheel 5 mounted on the bidirectional lead screw 3, and a worm 6 rotatably fitted on one side of the inner wall of the bottom shell 1 and meshing with the worm wheel 5.

[0026] Two connecting rods 7 are installed between the two drive blocks 4 and the top shell 2, and the two ends of the connecting rods 7 are respectively rotatably engaged with the drive blocks 4 and the top shell 2. The bottom shell 1 and the top shell 2 are respectively provided with a snap-fit ​​mechanism 8.

[0027] The snap-fit ​​mechanism 8 in this embodiment includes a groove 81 formed on one side of the bottom shell 1 and the top shell 2, a slider 82 that slides and elastically engages with the inner wall of the groove 81, an insert rod 83 fixedly connected to the lower side of the slider 82, and a push plate 84 fixedly connected to one side of the slider 82. Specifically, by providing the snap-fit ​​mechanism 8, it is convenient to limit and fix the connecting plate 10.

[0028] In this embodiment, both the bottom shell 1 and the top shell 2 have connecting grooves 9 on opposite sides. Connecting plates 10 slide on the inner walls of the connecting grooves 9. Slots 11 are provided on opposite sides of the two connecting plates 10, and the insert rod 83 engages with the slots 11. Specifically, by providing connecting grooves 9 and connecting plates 10, it is easy to disassemble the connecting plates 10, thereby facilitating the disassembly and replacement of the lower tooth block 14 and the upper tooth block 15, and avoiding cross-contamination.

[0029] In this embodiment, two limiting grooves 12 are formed on the upper side of the bottom shell 1, and the driving block 4 slides in fit on the inner wall of the limiting groove 12. Specifically, the limiting grooves 12 are used to limit the movement of the driving block 4.

[0030] In this embodiment, a knob 13 is installed at the end of the worm gear 6, and two telescopic limiting rods 18 are installed between the bottom shell 1 and the top shell 2. Specifically, the knob 13 facilitates the driving of the worm gear 6, and the telescopic limiting rods 18 are used to limit the movement of the bottom shell 1 and the top shell 2.

[0031] In this embodiment, a lower toothed block 14 is provided on the lower side of the bottom shell 1, and an upper toothed block 15 is provided on the upper side of the top shell 2. The lower toothed block 14 and the upper toothed block 15 are respectively fixedly connected to the corresponding connecting plate 10. Specifically, the lower toothed block 14 and the upper toothed block 15 are provided to protect the user's teeth. Both the lower toothed block 14 and the upper toothed block 15 are made of rubber.

[0032] In this embodiment, a connecting shell 16 is fixedly connected to one side of the bottom shell 1, and a T-shaped handle 17 is slidably fitted onto the inner wall of the connecting shell 16. Specifically, the T-shaped handle 17 is used to support and operate the bottom shell 1, improving the ease of use of the equipment.

[0033] When in use, the doctor uses the T-shaped handle 17 to drive the device, places the oral mouth opener into the patient's mouth, and makes the lower tooth block 14 and the upper tooth block 15 contact the patient's teeth respectively. According to the needs of use, the knob 13 is turned. When the knob 13 is turned, the worm gear 6 drives the worm wheel 5 to rotate, which makes the double-sided lead screw 3 rotate. The double-sided lead screw 3 drives the drive block 4 to move. The drive block 4 moves to both sides. Under the transmission of the connecting rod 7, the top shell 2 and the bottom shell 1 move to both sides to provide auxiliary support for the patient's oral cavity, making it easier for the doctor to examine or treat the patient. Moreover, the T-shaped handle 17 can be removed during use to avoid affecting the doctor's operation.

[0034] After use, by pushing the push plate 84, the push plate 84 drives the slider 82 to slide in the slide groove 81, squeezing the spring inside the slide groove 81, causing the slider 82 to drive the insertion rod 83 to move and separate from the slot 11, thereby pulling the connecting plate 10 to separate from the connecting groove 9, which facilitates the disassembly and replacement of the lower tooth block 14 and the upper tooth block 15, and improves the safety of equipment use.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An angle-adjustable oral cavity opener, comprising a base shell (1), characterized in that: The bottom shell (1) is provided with a top shell (2) on its upper side. The inner wall of the bottom shell (1) is rotatably fitted with a two-way lead screw (3). Two drive blocks (4) are threaded on the two-way lead screw (3). A worm wheel (5) is mounted on the two-way lead screw (3). A worm (6) that meshes with the worm wheel (5) is rotatably fitted on one side of the inner wall of the bottom shell (1). Two connecting rods (7) are installed between the two drive blocks (4) and the top shell (2), and the two ends of the connecting rods (7) are respectively rotatably engaged with the drive blocks (4) and the top shell (2). The bottom shell (1) and the top shell (2) are provided with snap-fit ​​mechanisms (8) on opposite sides.

2. The adjustable mouth opening device according to claim 1, characterized in that: The snap-fit ​​mechanism (8) includes a groove (81) formed on one side of the bottom shell (1) and the top shell (2), a slider (82) that slides and elastically fits the inner wall of the groove (81), an insert rod (83) fixedly connected to the lower side of the slider (82), and a push plate (84) fixedly connected to one side of the slider (82).

3. The adjustable mouth opening device according to claim 2, characterized in that: The bottom shell (1) and the top shell (2) are provided with connecting grooves (9) on opposite sides. The inner wall of the connecting groove (9) is slidably fitted with connecting plates (10). The two connecting plates (10) are provided with slots (11) on opposite sides. The insert rod (83) is fitted with the slot (11).

4. The adjustable mouth opening device according to claim 1, characterized in that: Two limiting grooves (12) are provided on the upper side of the bottom shell (1), and the driving block (4) slides in fit on the inner wall of the limiting groove (12).

5. An angle-adjustable oral cavity opener according to claim 1, characterized in that: A knob (13) is installed at the end of the worm gear (6), and two telescopic limit rods (18) are installed between the bottom shell (1) and the top shell (2).

6. An angle-adjustable oral cavity opener according to claim 3, characterized in that: The bottom shell (1) is provided with a lower toothed block (14) on its lower side, and the top shell (2) is provided with an upper toothed block (15) on its upper side. The lower toothed block (14) and the upper toothed block (15) are respectively fixedly connected to the corresponding connecting plate (10).

7. An angle-adjustable oral cavity opener according to claim 1, characterized in that: A connecting shell (16) is fixedly connected to one side of the bottom shell (1), and a T-shaped handle (17) is slidably fitted on the inner wall of the connecting shell (16).

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