Oral cavity expansion device

Abstract

The utility model relates to the technical field of department of stomatology, in particular to an oral cavity expanding device which comprises a pair of connecting frames and a pair of rotating blocks, fixing sleeve shells are fixedly installed at the two ends of each connecting frame, limiting blocks are arranged in the fixing sleeve shells in a sliding mode, a first lead screw is fixedly installed at one end of each rotating block, and a second lead screw is fixedly installed at the other end of each rotating block. The end of the first lead screw penetrates and extends into the fixing sleeve shell on one side in a threaded mode and is fixedly connected with the limiting block, and the end of the second lead screw penetrates and extends into the fixing sleeve shell on the other side in a threaded mode and is fixedly connected with the limiting block. Therefore, the device is helpful for doctors to observe, treat and the like, and is worthy of popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to stomatological technology field especially, relates to a mouth dilating device. BACKGROUND

[0002] The mouth dilating device can open the patient's mouth and keep the patient's mouth open during the oral disease examination and treatment. However, the existing mouth dilating device is mostly divided into two kinds, one kind cannot adjust the opening angle, and the other kind can adjust the opening angle, but the adjusted opening angle has gear limit and can only be adjusted at specific gears, so it cannot finely adjust the opening angle according to the specific needs of different patients, resulting in that the patient feels uncomfortable during wearing. SUMMARY

[0003] The utility model discloses a mouth dilating device which can finely adjust the opening angle according to the specific needs of different patients.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model discloses a mouth dilating device which can finely adjust the opening angle according to the specific needs of different patients.

[0006] Preferably, the first screw rod and the second screw rod are coaxially arranged and the thread directions are opposite.

[0007] Preferably, the fixed sleeve is fixedly installed with a sealing ring on the inner side of the end far from the connecting frame, and the inner side surface of the sealing ring is in contact with the outer side surface of the first screw rod and the second screw rod respectively.

[0008] Preferably, the occlusal plate is fixedly installed with an anti-skid convex rib inside.

[0009] Preferably, the fixed sleeve is fixedly installed with an observation window on one side, and the length direction of the observation window is parallel to the length direction of the first screw rod.

[0010] Preferably, the observation window is uniformly marked with scales on one side.

[0011] Preferably, one side of the connecting frame is fixedly provided with a connecting rod, and the end of the connecting rod is fixedly provided with a lighting lamp.

[0012] The oral cavity expansion device has the advantages that in the use process, the doctor can slightly adjust the distance between the bite plates according to the requirements of the patient, the bite plates are not separated from the teeth of the patient, the distance between the bite plates is adjusted through the rotating screw rod, the distance between the bite plates can be slightly adjusted according to the requirements of different patients, the comfort of the patient is improved, the connecting frame is located outside the mouth of the patient, the view of the doctor is not blocked, and the normal operation of the doctor is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model provides a kind of oral cavity expansion device's structure schematic view;

[0014] Figure 2 The utility model provides a kind of oral cavity expansion device's transverse section structure schematic view;

[0015] Figure 3 The utility model provides a kind of oral cavity expansion device's longitudinal section structure schematic view;

[0016] Figure 4 For Figure 1 The enlarged structure schematic view of A in the middle;

[0017] Figure 5 The utility model provides a kind of oral cavity expansion device in the section structure schematic view of rotating block.

[0018] In the drawing: 1, connecting frame;2, fixed casing;3, rotating block;4, first screw rod;5, second screw rod;6, limit block;7, fixed frame;8, bite plate;9, anti-skid rib;10, connecting rod;11, lighting lamp;12, sealing ring;13, observation window. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model.

[0020] Embodiment 1: refer to Figures 1-5The utility model provides an oral cavity expansion device, including a pair of connecting frame 1 and a pair of screw block 3, the both ends fixed mounting of connecting frame 1 is equipped with fixed cover shell 2, the inside of fixed cover shell 2 is slidably provided with limiting block 6, limiting block 6 can rotate in fixed cover shell 2. Screw block 3 one end fixed mounting has first lead screw 4, and the other end fixed mounting has second lead screw 5, and first lead screw 4 is coaxially arranged with second lead screw 5 and is opposite in screw thread direction, and rotating screw block 3 can simultaneously drive first lead screw 4 and second lead screw 5 rotate. First lead screw 4 end portion is screwed and extends to the inside of one side fixed cover shell 2 and is fixedly connected with limiting block 6, and first lead screw 4 rotates and can drive the fixed cover shell 2 connected with it to move, and second lead screw 5 end portion is screwed and extends to the inside of the other side fixed cover shell 2 and is fixedly connected with limiting block 6, and second lead screw 5 rotates and can drive the fixed cover shell 2 connected with it to move, and the diameter of limiting block 6 is greater than the diameter of lead screw, and the lead screw can be prevented from separating from fixed cover shell 2 by limiting block 6.

[0021] As shown in the accompanying drawings, Figures 1-2 The doctor holds the two fixed cover shells 2 with both hands, and then rotates the two screw blocks 3 with the thumbs and index fingers of both hands, so that the rotation of the screw blocks 3 drives the first lead screw 4 and the second lead screw 5 to rotate, and the rotation of the first lead screw 4 and the second lead screw 5 drives the two connecting frames 1 on the upper side and the lower side to move closer to each other or farther away from each other, so as to adjust the distance between the two connecting frames 1.

[0022] The fixed frame 7 is fixedly installed on one side of the middle part of the connecting frame 1, and the bite plate 8 is fixedly installed on the end of the fixed frame 7. The patient bites the bite plates 8 on the upper side and the lower side with the upper teeth and the lower teeth, so that the mouth of the patient can be opened. The bite plates 8 in contact with the patient are convenient to clean and disinfect, and are convenient to keep clean, so as to avoid cross infection. The anti-skid ribs 9 are fixedly installed in the bite plates 8, so that the teeth of the patient can be more stably in contact with the bite plates 8, so as to prevent the smooth bite plates 8 from sliding with the teeth. The connecting frame 1 on the upper side is located below the nose of the patient, and will not be blocked by the nose of the patient.

[0023] The observation window 13 is fixedly installed on one side of the fixed cover shell 2, and the length direction of the observation window 13 is parallel to the length direction of the first lead screw 4. The observation window 13 is uniformly marked with scales on one side. The position of the limiting block 6 in the fixed cover shell 2 can be observed through the observation window 13, the distance change between the two connecting frames 1 can be understood, so that the distance between the two bite plates 8 can be understood, and the size and the change of the mouth opening of the patient can be estimated.

[0024] One side of the connecting frame 1 is fixedly provided with a connecting rod 10, and the end of the connecting rod 10 is fixedly provided with an illuminating lamp 11; the connecting rod 10 can be repeatedly bent, and the position of the illuminating lamp 11 can be conveniently adjusted through the connecting rod 10.

[0025] Working principle: during use, the doctor holds the lower fixed sleeve 2 with hands, rotates the rotating blocks 3 on both sides with the thumb and the index finger, the rotating blocks 3 drive the first lead screw 4 and the second lead screw 5 to rotate, the first lead screw 4 and the second lead screw 5 drive the upper and lower fixed sleeves 2 to move away from each other, the movement of the upper and lower fixed sleeves 2 drives the upper and lower connecting frames 1 to move away from each other, thereby driving the upper and lower bite plates 8 to move away from each other through the connecting frames 1, so that the distance between the two bite plates 8 is adjusted to be suitable for the patient, then the upper and lower teeth of the patient are respectively bitten on the upper and lower bite plates 8, and the stability of the device as a whole can be maintained through the anti-skid convex ribs 9 when the patient bites on the bite plates 8; after the patient bites and during the subsequent treatment process, the doctor can make appropriate slight adjustment on the distance between the bite plates 8 according to the requirements of the patient, the distance between the bite plates 8 is adjusted through the rotating lead screw, the distance between the bite plates 8 can be slightly adjusted according to the requirements of different patients, the comfort of the patient is improved, and the connecting frames 1 are located outside the mouth of the patient, so as not to block the view of the doctor and affect the normal operation of the doctor.

[0026] In the embodiment 1, impurities are easily entered into the gap between the fixed sleeve 2 and the lead screw, so that the inside of the fixed sleeve 2 is not clean, therefore, the embodiment is provided. Figure 2 Figure 4 As another preferred embodiment of the utility model, on the basis of the embodiment 1, the end part of the fixed sleeve 2 away from the connecting frame 1 is fixedly provided with a sealing ring 12, the inner side surface of the sealing ring 12 respectively abuts against the outer side surface of the first lead screw 4 and the second lead screw 5, the sealing ring 12 is located on the outer end part of the fixed sleeve 2 and is close to the outer inner wall, the inner wall of the fixed sleeve 2 close to the inner side of the outer end part is provided with a thread and is connected with the lead screw, and the movement of the fixed sleeve 2 is not affected by the sealing ring 12 when the lead screw rotates. Under the blockage of the sealing ring 12, external impurities can be prevented from entering the fixed sleeve 2.

[0027] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.​

Claims

1. An oral expansion device comprising a pair of connecting brackets (1) and a pair of turn blocks (3), characterized in that, The connecting frame (1) is fixedly installed with a fixed sleeve shell (2) at both ends, the fixed sleeve shell (2) is internally and slidably provided with a limiting block (6), the rotating block (3) is fixedly installed with a first lead screw (4) at one end and a second lead screw (5) at the other end, the first lead screw (4) is threadedly extended to the inside of the fixed sleeve shell (2) on one side and fixedly connected with the limiting block (6), the second lead screw (5) is threadedly extended to the inside of the fixed sleeve shell (2) on the other side and fixedly connected with the limiting block (6), the connecting frame (1) is fixedly installed with a fixed frame (7) on one side of the middle part, and the fixed frame (7) is fixedly installed with a bite plate (8) at the end.

2. The oral expansion device of claim 1, wherein, The first lead screw (4) and the second lead screw (5) are coaxially arranged and have opposite screw directions.

3. The oral expansion device of claim 1, wherein, The fixed sleeve shell (2) is fixedly installed with a sealing ring (12) on the inside of the end away from the connecting frame (1), and the inside surface of the sealing ring (12) is in abutment with the outside surface of the first lead screw (4) and the second lead screw (5) respectively.

4. The oral expansion device of claim 1, wherein, The bite plate (8) is fixedly installed with an anti-skid convex rib (9) inside.

5. The oral expansion device of claim 1, wherein, The fixed sleeve shell (2) is fixedly installed with an observation window (13) on one side, and the length direction of the observation window (13) is parallel to the length direction of the first lead screw (4).

6. The mouth expansion device of claim 5, wherein, The observation window (13) is uniformly marked with scales on one side.

7. The oral expansion device of claim 1, wherein, The connecting frame (1) is fixedly installed with a connecting rod (10) on one side, and the connecting rod (10) is fixedly installed with an illuminating lamp (11) at the end.

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