A visual support device for oral examination

Abstract

The utility model relates to the technical field of oral examination, specifically a visual support device for oral examination, comprising a support frame and a clamping frame arranged on the support frame, and also comprising: a top support mechanism, wherein the top support mechanism is arranged on both sides of the support frame, and the opening and closing angle of the support frame can be adjusted by the top support mechanism; a limiting mechanism, wherein the limiting mechanism is arranged on the top support mechanism, and the opening and closing angle of the support frame can be fixed by the set limiting mechanism. This visual support device for oral examination adjusts the position of a T-shaped block by a set cam to change the distance between the top support rods, thereby changing the opening and closing angle of the support frame, avoiding the need for medical staff to manually pry open the patient's mouth, and at the same time limiting the angle of the cam by the limiting mechanism to avoid the patient's active occlusion to reset the support frame.

Description

Technical Field

[0001] The utility model relates to the technical field of oral examination, in particular to a visual support device for oral examination. Background Art

[0002] The oral cavity is the starting part of the digestive tract. It is connected to the outside world through the fissure in the front and is connected to the pharynx through the pharyngeal isthmus in the back. There are organs such as teeth and tongue in the oral cavity. The front wall of the oral cavity is the lips, the side walls are the cheeks, the top is the palate, and the floor of the oral cavity is composed of structures such as mucosa and muscles. The oral cavity is divided into the oral vestibule in the anterior and lateral part and the proper oral cavity in the posterior and medial part by the upper and lower dental arches. When the upper and lower teeth are bitten, the oral vestibule and the proper oral cavity can be connected through the gap behind the third molar.

[0003] In current oral examinations, medical staff usually pry open the patient's mouth manually and insert a visual probe into the patient's mouth for observation. On the one hand, this requires the medical staff to distract themselves to pry open the patient's mouth. On the other hand, if the patient has an emergency reaction, it is easy to cause harm to the medical staff. For this reason, we propose a visual support device for oral examinations. Utility Model Content

[0004] A technical problem to be solved by the present application is: how to fix the patient's oral opening and closing angle and facilitate the adjustment of the opening and closing angle.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a visual support device for oral examination, including a support frame and a clamping frame arranged on the support frame, and also includes:

[0006] A supporting mechanism, which is arranged on both sides of the support frame, and the opening and closing angles of the support frame can be adjusted through the supporting mechanism;

[0007] The limiting mechanism is arranged on the supporting mechanism, and the opening and closing angle of the supporting frame is fixed by the setting of the limiting mechanism.

[0008] In some embodiments, the supporting mechanism includes a shell, supporting rods are slidably provided on both sides of the shell, the supporting rods are rotatably connected to the support frame, and the shell is connected to the support frame through the supporting rods, T-shaped blocks are provided between the supporting rods, a cross bar is passed through the shell, a cam is provided at one end of the cross bar, the cam is in abutment with the T-shaped block, and a spring is provided between the T-shaped block and the shell.

[0009] In some embodiments, connecting rods are rotatably provided at both ends of the T-shaped block, and the T-shaped block is connected to the top support rod through the connecting rods. A rolling wheel is rotatably provided at the lower end of the T-shaped block, and the T-shaped block is connected to the cam through the rolling wheel.

[0010] In some embodiments, the limiting mechanism includes a gear, which is arranged on a cross bar. A movable rod is slidably arranged on the shell, and the movable rod passes through the side wall of the shell. A spring 2 is arranged between the movable rod and the shell. A limiting plate is arranged at one end of the movable rod, and the limiting plate can be embedded in the teeth of the gear.

[0011] In some embodiments, one end of the cross bar is set as a polygonal block, and the cross bar is slidably provided with a knob through its polygonal block, and a polygonal hole is opened on the knob.

[0012] In some embodiments, the snap-fit ​​frame is rotated on the crossbar, and the snap-fit ​​frame is connected to the support frame through the crossbar, and the snap-fit ​​frame can be connected to the visual probe.

[0013] In some embodiments, both sides of the limiting plate close to one end of the gear are chamfered.

[0014] The utility model has at least the following beneficial effects:

[0015] Different from the existing technology, in actual use, the position of the T-shaped block is adjusted by a set cam to change the distance between the top support rods, thereby changing the opening and closing angle of the support frame, avoiding the need for medical staff to manually pry open the patient's mouth. At the same time, the angle of the cam is limited by a limiting mechanism to avoid the patient's active biting to reset the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the top support mechanism of the utility model;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0020] Figure 5 For this utility model Figure 3 The enlarged structural diagram at C in the middle;

[0021] Figure 6 This is a schematic diagram of the knob structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the limiting plate structure of the utility model.

[0023] In the figure: 1-support frame; 2-support mechanism; 21-housing; 22-T-shaped block; 221-connecting rod; 222-rolling wheel; 23-support rod; 24-cross bar; 25-cam; 26-spring 1; 3-engaging frame; 4-limiting mechanism; 41-gear; 42-movable rod; 421-limiting plate; 43-spring 2; 5-knob; 51-polygonal hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-6 The utility model provides a technical solution: a visual support device for oral examination, including a support frame 1 and a clamping frame 3 arranged on the support frame 1, and also includes: a top support mechanism 2 arranged on both sides of the support frame 1, through which the opening and closing angle of the support frame 1 can be adjusted, and a limiting mechanism 4 arranged on the top support mechanism 2, through which the opening and closing angle of the support frame 1 can be fixed.

[0027] The supporting mechanism 2 includes a shell 21, and supporting rods 23 are slidably arranged on both sides of the shell 21. The supporting rods 23 are rotatably connected to the support frame 1, and the shell 21 is connected to the support frame 1 through the supporting rods 23. T-shaped blocks 22 are arranged between the supporting rods 23. A cross bar 24 is arranged through the shell 21. A cam 25 is arranged at one end of the cross bar 24. The cam 25 is in contact with the T-shaped block 22. A spring 26 is arranged between the T-shaped block 22 and the shell 21. Through the setting of the cam 25, when the cam 25 rotates one circle, the T-shaped block 22 can perform a whole reciprocating motion, which simplifies the adjustment process.

[0028] Connecting rods 221 are rotatably provided at both ends of the T-shaped block 22, and the T-shaped block 22 is connected to the top support rod 23 through the connecting rod 221. A rolling wheel 222 is rotatably provided at the lower end of the T-shaped block 22, and the T-shaped block 22 is connected to the cam 25 through the rolling wheel 222. The setting of the rolling wheel 222 prevents the cam 25 from causing lateral movement of the T-shaped block 22 during the rotation process, and the setting of the spring 26 can assist the T-shaped block 22 to be squeezed and reset downward.

[0029] The limiting mechanism 4 includes a gear 41, which is arranged on the cross bar 24. A movable rod 42 is slidably arranged on the shell 21. The movable rod 42 passes through the side wall of the shell 21. A spring 43 is arranged between the movable rod 42 and the shell 21. A limiting plate 421 is arranged at one end of the movable rod 42. The limiting plate 421 can be embedded in the gear teeth of the gear 41. The gear 41 is limited by the limiting plate 421 to prevent the gear 41 from actively rotating, thereby limiting the angle of the cam 25 on the cross bar 24.

[0030] One end of the cross bar 24 is set as a polygonal block, and the cross bar 24 is slidably provided with a knob 5 through its polygonal block. A polygonal hole 51 is opened on the knob 5. By setting one end of the cross bar 24 as a polygon, the knob 5 can be moved laterally while still driving the cross bar 24 to rotate.

[0031] The snap-fit ​​frame 3 rotates on the crossbar 24, and the snap-fit ​​frame 3 is connected to the support frame 1 through the crossbar 24. The snap-fit ​​frame 3 can be connected to the visual probe. The rotation setting of the snap-fit ​​frame 3 facilitates the angle change of the visual probe and provides certain support for the visual probe.

[0032] When in use, the patient bites the upper and lower ends of the support frame 1, pulls out by rotating the knob 5, and rotates it, thereby driving the cam 25 on the crossbar 24 to rotate. When the raised portion of the cam 25 contacts the T-shaped block 22, the T-shaped block 22 is pushed, thereby pushing the supporting rod 23 outward through the connecting rod 221, thereby changing the opening and closing angle of the support frame 1;

[0033] When the opening and closing angle of the support frame 1 is adjusted, the knob 5 is pressed back to its original position. During this process, the knob 5 pushes the movable rod 42 and pushes the limiting plate 421 into the gear teeth of the gear 41 to limit the rotation of the gear 41, thereby limiting the cross bar 24 and fixing the opening and closing angle of the support frame 1 to avoid the patient's active bite to reset the support frame 1. The visual probe is opened and closed into the locking frame 3, and the patient's oral cavity is examined and treated by rotating the visual probe.

[0034] Embodiment 2

[0035] See also Figure 1-7 , the utility model provides a technical solution: a visual support device for oral examination, embodiment 2 is optimized on the basis of embodiment 1;

[0036] Both sides of the limiting plate 421 close to one end of the gear 41 are rounded.

[0037] By rounding the two sides of the limiting plate 421 near one end of the cross bar 24, the movable rod 42 forms a structure that is narrow in front and wide in the back, so that the limiting plate 421 is easily embedded in the process of being embedded between the gear teeth of the gear 41.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual support device for oral examination, comprising a support frame (1) and a snap-fit ​​frame (3) arranged on the support frame (1), characterized in that: Also included are: A supporting mechanism (2), the supporting mechanism (2) being arranged on both sides of the supporting frame (1), and the opening and closing angle of the supporting frame (1) can be adjusted by the supporting mechanism (2); A limiting mechanism (4), wherein the limiting mechanism (4) is arranged on the supporting mechanism (2), and the opening and closing angle of the supporting frame (1) is fixed by the setting of the limiting mechanism (4); The supporting mechanism (2) comprises a shell (21), supporting rods (23) are slidably arranged on both sides of the shell (21), the supporting rods (23) are rotatably connected to the support frame (1), and the shell (21) is connected to the support frame (1) through the supporting rods (23), a T-shaped block (22) is arranged between the supporting rods (23), a cross bar (24) is arranged through the shell (21), a cam (25) is arranged at one end of the cross bar (24), the cam (25) is in contact with the T-shaped block (22), and a spring (26) is arranged between the T-shaped block (22) and the shell (21); Connecting rods (221) are rotatably provided at both ends of the T-shaped block (22), and the T-shaped block (22) is connected to the top support rod (23) through the connecting rod (221). A rolling wheel (222) is rotatably provided at the lower end of the T-shaped block (22), and the T-shaped block (22) is connected to the cam (25) through the rolling wheel (222).

2. The visual support device for oral examination according to claim 1, characterized in that: The limiting mechanism (4) comprises a gear (41), the gear (41) being arranged on a cross bar (24), a movable rod (42) being slidably arranged on the shell (21), the movable rod (42) penetrating a side wall of the shell (21), a second spring (43) being arranged between the movable rod (42) and the shell (21), a limiting plate (421) being arranged at one end of the movable rod (42), and the limiting plate (421) being capable of being embedded in the gear teeth of the gear (41).

3. The visual support device for oral examination according to claim 2, characterized in that: One end of the cross bar (24) is arranged as a polygonal block, and a knob (5) is slidably arranged on the cross bar (24) through the polygonal block, and a polygonal hole (51) is opened on the knob (5).

4. The visual support device for oral examination according to claim 3, characterized in that: The snap-fit ​​frame (3) is rotated on the cross bar (24), and the snap-fit ​​frame (3) is connected to the support frame (1) via the cross bar (24). The snap-fit ​​frame (3) can be connected to a visual probe.

5. The visual support device for oral examination according to claim 4, characterized in that: The limiting plate (421) has rounded corners on both sides close to one end of the gear (41).

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