Oral cavity examination dilator

Abstract

The utility model discloses an oral cavity examination dilator, which relates to the technical field of oral cavity examination, and comprises two tooth fixing plates used for supporting the mouth of a patient, a positioning assembly used for positioning the dilator is arranged between the two tooth fixing plates, the positioning assembly comprises mounting plates and a guide pipe, the same sides of the two tooth fixing plates are elastically provided with the mounting plates, and the guide pipe is arranged on the mounting plates. The guide pipe is arranged between the two mounting plates, and one end of the guide pipe is fixedly connected with one side of one mounting plate. Compressed air is conveyed into an inner cavity of a guide pipe through a positioning assembly and an air conveying pipe, the air pressure between a sealing plug and the bottom of the guide pipe is increased, then a supporting rod is pushed to slide in the direction away from the guide pipe, and after the two tooth fixing plates move to a certain degree, the purpose of positioning the two tooth fixing plates can be achieved by closing an air pump; the mouth of the patient is prevented from being closed due to soreness or fatigue of muscles around the mouth of the patient, and adverse effects on normal examination of the oral cavity of the patient are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cavity examination, in particular to an oral cavity examination expander. Background Art

[0002] When doctors examine, diagnose or treat patients, they will use appropriate instruments to assist in the operation, which is not only quick and labor-saving, but also achieves the purpose of cleanliness and hygiene. For example, when conducting an oral examination, some simple inflammations only require the patient to open his mouth and cooperate with the doctor's observation. For more complex diseases in the oral cavity, special expansion stents are required, which usually need to be maintained for a longer time, mainly to enable a careful examination.

[0003] If a wound appears in the patient's mouth or the inside of the patient's mouth needs to be examined, the patient's mouth needs to be kept open. If the patient's mouth is open for a long time, it is easy to cause soreness or fatigue of the muscles around the mouth, causing the patient's mouth to close, thus adversely affecting the normal examination of the patient's mouth.

[0004] For this purpose, we propose an oral examination expander. Utility Model Content

[0005] The utility model provides an oral cavity inspection expander.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oral examination expander, comprising two fixed tooth plates for supporting the patient's mouth, and a positioning component for positioning itself is arranged between the two fixed tooth plates.

[0007] The positioning assembly includes a mounting plate and a guide tube, the mounting plates are elastically mounted on the same side of the two fixed tooth plates, the guide tube is arranged between the two mounting plates, and one end of the guide tube is fixedly connected to one side of one of the mounting plates, a support rod is slidably mounted in the inner cavity of the guide tube, one end of the support rod passes through the outside of the guide tube and is fixedly connected to one side of the other mounting plate, and a sealing plug is fixedly mounted on the other end of the support rod, an air pipe connected to the inner cavity of the guide tube is fixedly mounted on the outer wall of the guide tube, and an air pump is externally connected to the air inlet end of the air pipe, at least one reset block is fixedly mounted on one side of the two fixed tooth plates close to the mounting plates, a placement groove matched with the reset block is provided at one end of the two mounting plates close to the fixed tooth plates, rotating shafts are fixedly mounted on both sides of the reset block, and grooves matched with the rotating shafts are provided on both sides of the inner cavity of the placement grooves.

[0008] Preferably, a limit ring is fixedly installed on the inner wall of the guide tube, and the limit ring is located between the sealing plug and the gas pipe.

[0009] Preferably, an air outlet pipe connected to the inner cavity of the guide tube is fixedly mounted on the outer wall of the guide tube, a leak-proof plug is detachably mounted on one end of the air outlet pipe away from the inner cavity of the guide tube, and the air outlet pipe and the air supply pipe are located in the same horizontal plane.

[0010] Preferably, at least one telescopic rod is fixedly mounted between the two mounting plates, one end of the telescopic rod is fixedly connected to one side of one of the mounting plates, and the other end of the telescopic rod is fixedly connected to one side of the other mounting plate.

[0011] Preferably, a pressure spring is fixedly mounted on the inner wall of the placement groove, and the other end of the pressure spring is fixedly connected to one side of the reset block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model uses a positioning component and then transmits compressed air to the inner cavity of the guide tube through the air pipe. The air pressure between the sealing plug and the bottom of the guide tube increases, thereby pushing the support rod to slide in the direction away from the guide tube until the two tooth plates move to a certain extent. The air pump is then turned off to achieve the purpose of positioning the two tooth plates, preventing the patient's mouth from closing due to soreness or fatigue of the muscles around the mouth, thereby reducing the adverse effects on the normal examination of the patient's oral cavity. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a cross-sectional view of the mounting plate and the guide tube of the utility model;

[0016] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0017] In the figure: 1. fixed tooth plate; 2. mounting plate; 3. telescopic rod; 4. support rod; 5. air pipe; 6. guide pipe; 7. reset block; 8. sealing plug; 9. anti-leakage plug; 10. limit ring. DETAILED DESCRIPTION

[0018] 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 of 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.

[0019] Example 1

[0020] See also Figure 1-3The figure shows an oral examination expander, which includes two fixed tooth plates 1 for supporting the patient's mouth. A positioning component for positioning the two fixed tooth plates 1 is provided between the two fixed tooth plates 1. When the patient's mouth is in an open state, the two fixed tooth plates 1 are placed in the patient's mouth at the same time, and then the two sides of the two fixed tooth plates 1 away from each other are fitted with the two rows of teeth, and then the two fixed tooth plates 1 are fixed by the positioning component, so that the support function of the two fixed tooth plates 1 can be achieved.

[0021] The positioning assembly includes a mounting plate 2 and a guide tube 6. The mounting plate 2 is elastically mounted on the same side of the two fixed tooth plates 1. The guide tube 6 is arranged between the two mounting plates 2, and one end of the guide tube 6 is fixedly connected to one side of one of the mounting plates 2. A support rod 4 is slidably mounted in the inner cavity of the guide tube 6. One end of the support rod 4 passes through the outside of the guide tube 6 and is fixedly connected to one side of the other mounting plate 2. The guide tube 6 can limit the sliding trajectory of the support rod 4 so as to improve the sliding stability of the support rod 4.

[0022] A sealing plug 8 is fixedly installed on the other end of the support rod 4, and an air pipe 5 connected to the inner cavity of the guide tube 6 is fixedly installed on the outer wall of the guide tube 6. The air inlet end of the air pipe 5 is externally connected to an air pump. After starting the air pump, the air pump compresses the external air and then transmits the compressed air to the inner cavity of the air pipe 5 through its own air inlet end and the air outlet end, and then transmits the compressed air to the inner cavity of the guide tube 6 through the air pipe 5. The air pressure between the sealing plug 8 and the bottom of the guide tube 6 increases, thereby pushing the support rod 4 to slide away from the guide tube 6 until the two fixed tooth plates 1 move to a certain extent. Turning off the air pump can achieve the purpose of positioning the two fixed tooth plates 1, preventing the patient's mouth from closing due to soreness or fatigue of the muscles around the mouth, thereby reducing the adverse effects on the normal examination of the patient's oral cavity.

[0023] A limit ring 10 is fixedly installed on the inner wall of the guide tube 6. The limit ring 10 is located between the sealing plug 8 and the air pipe 5 to prevent the sealing plug 8 from resetting or blocking the end of the air pipe 5 connected to the inner cavity of the guide tube 6 when in the initial position, resulting in the air compressed by the air pump being unable to flow into the inner cavity of the guide tube 6, thereby making the support rod 4 unable to move, thereby improving the convenience of moving the support rod 4.

[0024] An air outlet pipe connected to the inner cavity of the guide tube 6 is fixedly installed on the outer wall of the guide tube 6, and a leak-proof plug 9 is detachably installed on the end of the air outlet pipe away from the inner cavity of the guide tube 6, and the air outlet pipe and the air supply pipe 5 are located in the same horizontal plane. When air is supplied to the inner cavity of the guide tube 6 through the air supply pipe 5, the leak-proof plug 9 is installed in the inner cavity of the air outlet pipe to prevent air leakage inside the guide tube 6. When the tooth-fixing plate 1 needs to be removed from the patient's mouth, the leak-proof plug 9 is pulled out from the inner cavity of the air outlet pipe, so that the high-pressure gas inside the guide tube 6 can merge with the external air through the air outlet pipe until the internal air pressure of the guide tube 6 is the same as the external air pressure, thereby releasing the limitation on the two tooth-fixing plates 1, making it easy to remove the tooth-fixing plates 1 from the patient's mouth.

[0025] At least one telescopic rod 3 is fixedly installed between the two mounting plates 2, one end of the telescopic rod 3 is fixedly connected to one side of one of the mounting plates 2, and the other end of the telescopic rod 3 is fixedly connected to one side of the other mounting plate 2. Two telescopic rods 3 are arranged between the two mounting plates 2, and the guide tube 6 is located between the two telescopic rods 3. The telescopic end of the telescopic rod 3 can move with the two fixed tooth plates 1, thereby improving the stability of the distance change between the two fixed tooth plates 1.

[0026] At least one reset block 7 is fixedly installed on one side of the two fixed tooth plates 1 close to the mounting plate 2, and a placement groove compatible with the reset block 7 is provided at one end of the two mounting plates 2 close to the fixed tooth plates 1. Rotating shafts are fixedly installed on both sides of the reset block 7, and grooves compatible with the rotating shafts are provided on both sides of the inner cavity of the placement groove. After the two fixed tooth plates 1 come into contact with the two rows of teeth, the two rows of teeth will inevitably squeeze the two fixed tooth plates 1, and the two squeezed fixed tooth plates 1 will deform in the direction of approaching each other. At this time, the reset block 7 rotates in the inner cavity of the placement groove, which plays a buffering role for the fixed tooth plate 1 and prevents the fixed tooth plate 1 from being damaged due to a large force deformation.

[0027] A pressure spring is fixedly installed on the inner wall of the placement groove, and the other end of the pressure spring is fixedly connected to one side of the reset block 7. When the external force on the fixed tooth plate 1 disappears, the pressure spring resets to achieve the reset of the two fixed tooth plates 1, so as to facilitate the later use of the fixed tooth plates 1.

[0028] 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.

[0029] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oral inspection dilator, characterized in that: It comprises two tooth-fixing plates (1) for supporting the patient's mouth, and a positioning component for positioning itself is arranged between the two tooth-fixing plates (1); The positioning assembly comprises a mounting plate (2) and a guide tube (6), the mounting plate (2) being elastically mounted on the same side of the two fixed tooth plates (1), the guide tube (6) being arranged between the two mounting plates (2), and one end of the guide tube (6) being fixedly connected to one side of one of the mounting plates (2), a support rod (4) being slidably mounted in the inner cavity of the guide tube (6), one end of the support rod (4) passing through the outside of the guide tube (6) and being fixedly connected to one side of the other mounting plate (2), and the other end of the support rod (4) being fixedly connected to the inner cavity of the guide tube (6). A sealing plug (8) is installed, an air supply pipe (5) connected to the inner cavity of the guide tube (6) is fixedly installed on the outer wall of the guide tube (6), and an air pump is externally connected to the air inlet end of the air supply pipe (5). At least one reset block (7) is fixedly installed on one side of the two fixed tooth plates (1) close to the mounting plate (2), and a placement groove compatible with the reset block (7) is provided on one end of the two mounting plates (2) close to the fixed tooth plates (1). Rotating shafts are fixedly installed on both sides of the reset block (7), and grooves compatible with the rotating shaft are provided on both sides of the inner cavity of the placement groove.

2. An oral inspection dilator according to claim 1, characterized in that: A limit ring (10) is fixedly mounted on the inner wall of the guide tube (6), and the limit ring (10) is located between the sealing plug (8) and the gas delivery pipe (5).

3. An oral inspection dilator according to claim 2, characterized in that: An air outlet pipe connected to the inner cavity of the guide tube (6) is fixedly mounted on the outer wall of the guide tube (6); a leak-proof plug (9) is detachably mounted on one end of the air outlet pipe away from the inner cavity of the guide tube (6); and the air outlet pipe and the air delivery pipe (5) are located on the same horizontal plane.

4. The oral inspection dilator according to claim 1, characterized in that: At least one telescopic rod (3) is fixedly mounted between the two mounting plates (2), one end of the telescopic rod (3) is fixedly connected to one side of one of the mounting plates (2), and the other end of the telescopic rod (3) is fixedly connected to one side of the other mounting plate (2).

5. The oral inspection dilator according to claim 1, characterized in that: A pressure spring is fixedly mounted on the inner wall of the placement groove, and the other end of the pressure spring is fixedly connected to one side of the reset block (7).

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