Mouth gag for oral cavity detection

Abstract

The utility model relates to the related technical field of oral examination tools, in particular to a mouth gag for oral examination, which comprises a first forceps rod and a second forceps rod which are hinged with each other. The end part of the first forceps rod and the end part of the second forceps rod are respectively provided with a connecting seat, and a plurality of lock holes are formed in the connecting seats along the circumference; lock holes are formed in the two ends of the first forceps rod and the second forceps rod, the biteplates are rotationally installed on the connecting base, locking pieces are symmetrically arranged at the two ends of each biteplate, and the locking pieces can be inserted into the lock holes, and the distance between the two biteplates is changed by controlling the first forceps rod and the second forceps rod to deflect synchronously; the oral cavity of a patient can be opened, the opening angle is controllable, meanwhile, the angle between the biteplate and the connecting base can be adjusted to be different angles according to the using habits of a doctor, and under the action of the locking piece, it is ensured that the angle between the biteplate and the connecting base is kept fixed under the condition that no external force exists when the patient is detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to oral cavity examination tool related technical field, specifically a kind of mouth gag for oral cavity detection. BACKGROUND

[0002] Mouth gag for oral cavity detection is a kind of medical instrument specially designed to keep patient's mouth open during oral surgery and examination process. Its main function is to fix the patient's mouth, so that the doctor can conveniently operate or examine. This instrument is usually used by doctors, dentists or other medical professionals to prevent the tongue and teeth from biting or obstructing the operation.

[0003] The design and material of the existing mouth gag for oral cavity detection are various, such as forceps mouth gag and T-shaped mouth gag. These mouth gags are used in different stomatology scenes. The forceps mouth gag can open the patient's mouth by controlling the rotation of the two forceps rods. The opening structure at the end of the forceps rod is integrally arranged with the forceps rod, which causes the angle between the forceps rod and the opening structure to be unable to adjust during use, resulting in reduced practicability during oral cavity detection. SUMMARY

[0004] The utility model aims at providing a mouth gag for oral cavity detection to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A mouth gag for oral cavity detection, comprising a first forceps rod and a second forceps rod, the first forceps rod and the second forceps rod are hingedly connected to each other.

[0007] The end of the first forceps rod and the second forceps rod is respectively provided with a connecting seat, and a plurality of lock holes are arranged on the connecting seat in a circumferential direction.

[0008] A bite plate is rotatably installed on the connecting seat, and the two ends of the bite plate are symmetrically provided with locking members, which can be inserted into the lock holes.

[0009] The mouth gag for oral cavity detection as described above: the locking member comprises a locking plate fixed to the bite plate, at least one insertion slot is formed in the locking plate, and a plug rod is slidably installed in the insertion slot, one end of the plug rod away from the insertion slot can be inserted into the lock hole.

[0010] It further comprises a second spring, the second spring is arranged in the insertion slot, one end of the second spring abuts against the inside end of the insertion slot, and the other end abuts against the plug rod.

[0011] The mouth gag for oral cavity detection as described above: the connecting seat is arranged in a shape similar to a pair of slippers, and the smaller end of the opening is rotatably connected to the bite plate.

[0012] The oral cavity examination mouth opener as described above: the end of the insert rod away from the insertion slot has a tapered abutment surface.

[0013] The oral cavity examination mouth opener as described above: the second clamp bar is provided with a ratchet plate with an arc-shaped structure, and the ratchet plate can engage with a locking member provided on the first clamp bar.

[0014] The oral cavity examination mouth opener as described above: the engaging component includes a ratchet, which is slidably disposed within a through groove formed by the first clamp bar. The ratchet can engage with the ratchet plate, and the ratchet is connected to an unlocking structure disposed on the first clamp bar.

[0015] The oral cavity examination mouth opener as described above: the unlocking structure includes an unlocking block, the unlocking block is slidably disposed in the limiting groove formed by the first clamp bar, and one end of the unlocking block passing through the limiting groove is fixed to the ratchet, and a push plate is fixedly installed on the other end of the unlocking block;

[0016] It also includes a first spring, which is disposed in the through groove, with one end of the first spring abutting against the unlocking block and the other end abutting against the end of the through groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By controlling the synchronous deflection of the first and second clamping rods, and with the angle after deflection being locked, the gap between the clamping ends of the first and second clamping rods is changed, thereby altering the distance between the two occlusal plates. This opens the patient's mouth at a controllable angle. Simultaneously, the angle between the occlusal plates and the connecting seat can be adjusted to different angles according to the doctor's usage habits. Furthermore, under the action of the locking device, the angle between the occlusal plates and the connecting seat is kept fixed without external force during patient testing, further improving the effectiveness of the mouth opener. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an oral cavity examination mouth opener.

[0020] Figure 2 This is a schematic diagram of the connecting seat and occlusal plate in an oral examination mouth opener.

[0021] Figure 3 This is a schematic diagram of the locking element in an oral cavity examination mouth opener.

[0022] Figure 4 This is a schematic diagram of the structure of the first forceps bar in an oral cavity examination mouth opener.

[0023] Figure 5 Structure diagram of the second jaw rod in the mouth opening device for oral detection.

[0024] In the figure: 1, the first jaw rod; 101, the through slot; 102, the limiting slot; 2, the second jaw rod; 201, the ratchet plate; 3, the unlocking block; 4, the ratchet wheel; 5, the first spring; 6, the connecting seat; 601, the lock hole; 7, the occlusal plate; 8, the locking plate; 801, the plug-in slot; 9, the plug rod; 901, the abutment surface; 10, the second spring. DETAILED DESCRIPTION

[0025] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent functionally the same or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0026] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0027] In addition, for the purpose of convenience and brevity, specific details of various embodiments are set forth in the following description. It should be appreciated that the application can be practiced without some or all of the specific details set forth in the following description. In some instances, well known structures, materials, and methods have not been described in detail in order to avoid obscuring the application.

[0028] Please refer to Figures 1-5 In the embodiment of the utility model, a mouth opening device for oral detection includes a first jaw rod 1, a second jaw rod 2, a connecting seat 6, a lock hole 601, an occlusal plate 7 and a locking member.

[0029] Specifically, please refer to Figure 1 and Figure 2 , including:

[0030] It includes a first jaw rod 1 and a second jaw rod 2, and the first jaw rod 1 and the second jaw rod 2 are hingedly connected to each other.

[0031] The first jaw rod 1 and the second jaw rod 2 are respectively provided with a connecting seat 6, and a plurality of lock holes 601 are arranged on the connecting seat 6 in a circumferential direction.

[0032] An occlusal plate 7 is rotatably installed on the connecting seat 6, and the occlusal plate 7 is symmetrically provided with a locking member at both ends, and the locking member can be inserted into the lock hole 601.

[0033] In detail, in the embodiment, the mouth opening device for oral cavity detection is used, when a doctor checks the oral cavity of a patient, the first clamp rod 1 and the second clamp rod 2 are controlled to be deflected synchronously, and the gap between the clamping end of the first clamp rod 1 and the clamping end of the second clamp rod 2 is changed in the locked state, so that the distance between the two bite plates 7 is changed, thereby the oral cavity of the patient is expanded, and the expansion angle is controllable, at the same time, the angle between the bite plate 7 and the connecting seat 6 can be adjusted to different angles according to the use habit of the doctor, and under the action of the locking piece, the angle between the bite plate 7 and the connecting seat 6 is kept fixed without external force when the patient is detected, thereby the use effect of the mouth opening device is further improved.

[0034] It should be noted that: the connecting seat 6 is formed with a placing groove, and the bite plate 7 can be accommodated in the placing groove in the non-use state, thereby saving the storage space and avoiding the collision between the bite plate 7 and other oral cavity instruments.

[0035] As a further scheme of the utility model, please refer to Figure 2 and Figure 3 The locking piece comprises a locking plate 8 fixed with the bite plate 7, at least one insertion groove 801 is formed in the locking plate 8, an insertion rod 9 is slidably installed in the insertion groove 801, and one end of the insertion rod 9 away from the insertion groove 801 can be inserted into the lock hole 601.

[0036] Further comprising a second spring 10, the second spring 10 is arranged in the insertion groove 801, one end of the second spring 10 abuts against the inner side end of the insertion groove 801, and the other end abuts against the insertion rod 9.

[0037] Preferably, the connecting seat 6 is arranged in a shape similar to a pair of shoes, and the small opening end is rotatably connected with the bite plate 7, the purpose of the eight-shaped structure is to improve the clamping force of the bite plate 7 after installation, and the deformation of the connecting seat 6 at this time is used to strengthen the connection between the bite plate 7 and the connecting seat 6.

[0038] Preferably, one end of the insertion rod 9 away from the insertion groove 801 is formed with an abutting face 901 arranged in a tapered structure.

[0039] Specifically, before the doctor carries out the oral cavity detection on the patient, the connecting seat 6 can be manually controlled to rotate relative to the bite plate 7 as needed, at this time, the inner wall of the lock hole 601 exerts an inclined extrusion force on the abutting surface 901 of the insertion rod 9, so that the insertion rod 9 moves towards the side of the bite plate 7, and after the bite plate 7 is completely separated from the lock hole 601, the rotation of the bite plate 7 relative to the connecting seat 6 is realized, and when the manual driving is stopped, under the elastic action of the second spring 10, the insertion rod 9 is inserted into the lock hole 601 again, thereby ensuring that the angle between the connecting seat 6 and the bite plate 7 is determined, and under the action of the lock hole 601 and the insertion rod 9, the quick locking of the connecting seat 6 and the bite plate 7 is realized.

[0040] As a further scheme of the utility model, referring to Figure 4 , the second clamp rod 2 is provided with a ratchet plate 201 in an arc structure, and the ratchet plate 201 can be engaged with a clamping piece arranged on the first clamp rod 1.

[0041] It should be noted that a plurality of grooves are arranged equidistantly along the circumference of the ratchet plate 201, a ratchet strip is rotatably installed in the grooves, and a torsion spring is further arranged in the grooves, one end of the torsion spring abuts against the ratchet strip, and the other end abuts against the side wall of the groove, which is mainly used for stopping the rotation of the ratchet plate 201 when the ratchet plate 201 is locked by the locking piece during the relative rotation of the first clamp rod 1 and the second clamp rod 2, so as to fix the angle between the first clamp rod 1 and the second clamp rod 2, thereby ensuring the opening distance between the two bite plates 7.

[0042] As a further scheme of the utility model, referring to Figure 5 , the clamping piece comprises a ratchet wheel 4, the ratchet wheel 4 is slidably arranged in a through groove 101 formed in the first clamp rod 1, the ratchet wheel 4 can be engaged with the ratchet plate 201, and the ratchet wheel 4 is connected with an unlocking structure arranged on the first clamp rod 1.

[0043] When the first clamp rod 1 rotates relative to the second clamp rod 2, the ratchet plate 201 passes through the through groove 101.

[0044] When the first clamp rod 1 and the second clamp rod 2 are manually controlled to rotate synchronously, when the angle between the first clamp rod 1 and the second clamp rod 2 increases, the clamping teeth on the ratchet wheel 4 extrude the ratchet strip, and under the action of the torsion spring, the ratchet strip can give way, thereby realizing the synchronous rotation of the first clamp rod 1 and the second clamp rod 2, and when the angle of the first clamp rod 1 and the second clamp rod 2 is controlled to decrease, under the action of the ratchet wheel 4 and the ratchet strip, the blocking of the ratchet wheel 4 to the ratchet strip is removed, so as to ensure that the angle between the first clamp rod 1 and the second clamp rod 2 is controllable and can be fixed.

[0045] As a further scheme of the utility model, referring to Figure 5The unlocking structure comprises an unlocking block 3, the unlocking block 3 is slidingly arranged in a limiting groove 102 formed by the first clamp rod 1, and one end of the unlocking block 3 penetrates through the limiting groove 102 and is fixed with the ratchet wheel 4, and the other end of the unlocking block 3 is fixedly provided with a push plate;

[0046] Further, a first spring 5 is arranged in the through groove 101, one end of the first spring 5 abuts against the unlocking block 3, and the other end of the first spring 5 abuts against the end of the through groove 101.

[0047] In detail, when the first clamp rod 1 and the second clamp rod 2 need to be reset after the oral cavity detection of the patient is completed, the push plate is manually pushed to slide relative to the first clamp rod 1, and the push plate drives the unlocking block 3 to move synchronously, wherein when the unlocking block 3 moves away from the ratchet wheel 4, the first spring 5 is extruded, and the ratchet wheel 4 drives the ratchet plate 201 to be displaced, so that the angle between the first clamp rod 1 and the second clamp rod 2 can be reset, and it should be noted that: in the initial state, the first spring 5 is in a compressed state, so that the angle between the first clamp rod 1 and the second clamp rod 2 is fixed, and the angle between the first clamp rod 1 and the second clamp rod 2 cannot be changed without external force, thereby further improving the practicability of the doctor in the oral cavity detection of the patient.

[0048] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0049] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. Mouth opening device for oral examination comprising a first jaw lever (1) and a second jaw lever (2), which are hingedly connected to each other, characterized in that ； The end of the first jaw lever (1) and the second jaw lever (2) is respectively provided with a connecting seat (6), a plurality of lock holes (601) are arranged on the connecting seat (6) in the circumference; A bite plate (7) is rotatably installed on the connecting seat (6), and the two ends of the bite plate (7) are symmetrically provided with locking members which can be inserted into the lock holes (601).

2. The mouth detector according to claim 1, wherein The locking member comprises a locking plate (8) fixed with the bite plate (7), at least one insertion slot (801) is formed in the locking plate (8), an insertion rod (9) is slidably installed in the insertion slot (801), and the end of the insertion rod (9) away from the insertion slot (801) can be inserted into the lock hole (601). Further comprising a second spring (10) arranged in the insertion slot (801), one end of the second spring (10) abuts against the inside end of the insertion slot (801), and the other end abuts against the insertion rod (9).

3. The mouth detector according to claim 1, wherein The connecting seat (6) is arranged in a shape similar to a pair of shoes, and the end with a small opening is rotatably connected with the bite plate (7).

4. The mouth detector according to claim 2, wherein The end of the insertion rod (9) away from the insertion slot (801) is formed with an abutting surface (901) arranged in a tapered structure.

5. The mouth detector according to claim 1, wherein The second jaw lever (2) is provided with a ratchet plate (201) arranged in an arc structure, and the ratchet plate (201) can engage with a clamping member arranged on the first jaw lever (1).

6. The mouth detector according to claim 5, wherein The clamping member comprises a ratchet wheel (4) slidably arranged in a through slot (101) formed in the first jaw lever (1), the ratchet wheel (4) can engage with the ratchet plate (201), and the ratchet wheel (4) is connected with an unlocking structure arranged on the first jaw lever (1).

7. The mouth detector according to claim 6, wherein The unlocking structure comprises an unlocking block (3) slidably arranged in a limiting slot (102) formed in the first jaw lever (1), one end of the unlocking block (3) penetrating the limiting slot (102) is fixed with the ratchet wheel (4), and the other end of the unlocking block (3) is fixedly installed with a push plate; Further comprising a first spring (5) arranged in the through slot (101), one end of the first spring (5) abuts against the unlocking block (3), and the other end abuts against the end of the through slot (101).

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