Mouth opening measurement device

Abstract

The present invention relates to the field of oral medical technology, and discloses a mouth opening measurement device, comprising a mouth opening piece, the outer diameter of which gradually increases from the tail end to the head end of the mouth opening piece; the mouth opening piece is used to be placed in the patient's mouth, and the position where the patient bites on the outer surface of the mouth opening piece indicates the patient's mouth opening index. The present invention provides a reliable and efficient mouth opening measurement tool, which can quickly and accurately measure the patient's mouth opening index and quantify it, providing valuable reference data for clinical use.

Description

Technical Field

[0001] The invention relates to the technical field of oral medical treatment, and in particular to a mouth opening degree measuring device. Background Art

[0002] Mouth opening is an indicator used to evaluate the size of the patient's mouth opening. As an important physiological function indicator, it is of great significance in evaluating the patient's quality of life.

[0003] In the course of certain diseases and their treatment, the degree of mouth opening may gradually decrease due to pain or side effects of medication.

[0004] In the prior art, the change of the patient's mouth opening is usually judged manually and subjectively, which is very primitive. For example, according to the provisions of Section 6.3 (mouth opening judgment and measurement method) of the "Standard for the Identification of the Degree of Disability Caused by Work-related Injuries and Occupational Diseases" (GB / T16180-2006), when measuring the mouth opening, the patient's own index finger, middle finger, and ring finger are placed vertically on the upper and lower central incisors in parallel, and the incisal edges are measured.

[0005] Normal mouth opening means that the above three fingers can be placed vertically between the incisal edges of the upper and lower incisors (equivalent to about 4.5 cm) when the mouth is open;

[0006] Difficulty in opening the mouth: Grade I means that when the mouth is opened wide, only the index and middle fingers can be inserted vertically (equivalent to about 3 cm);

[0007] Difficulty in opening the mouth II means that when the mouth is opened wide, only the index finger can be placed vertically (equivalent to about 1.7 cm);

[0008] Difficulty in opening the mouth Grade III means that when the mouth is opened wide, the distance between the upper and lower incisors is smaller than the transverse diameter of the index finger.

[0009] Obviously, the thickness of fingers varies from person to person, so the evaluation criteria vary. However, since the evaluation index is vague and there is no simple tool to obtain better quantitative evaluation results, it is easy to ignore the changes in the patient's mouth opening degree. Summary of the invention

[0010] In order to solve the above problems, the present invention provides a reliable and efficient mouth opening measurement tool, which can quickly and accurately measure the patient's mouth opening index and quantify it, thereby providing valuable reference data for clinical use.

[0011] In the present invention, the mouth opening measuring device comprises:

[0012] An opening piece, the outer diameter of which gradually increases from the tail end to the head end of the opening piece;

[0013] The mouth opening piece is used to be placed in the patient's mouth, and the position where the patient bites on the outer surface of the mouth opening piece indicates the patient's mouth opening index.

[0014] The present invention measures the patient's mouth opening by means of a mouth opening piece whose outer diameter gradually increases from the tail end to the head end. Compared with the prior art, the present invention can intuitively and quantitatively reflect the size of the patient's mouth opening by means of indicators such as the outer diameter and diameter of the plane where the patient's teeth bite, thereby obtaining clear quantitative results.

[0015] Preferably, the opening piece is hollow and cylindrical.

[0016] The mouth opening member formed into a tubular shape can save manufacturing materials. In addition, the mouth opening member formed into a tubular shape is not only convenient for the placement of the patient's tongue, but also convenient for observing the patient's oral cavity interior situation.

[0017] In addition, as a preference, a plurality of grooves are provided on the mouth opening member, and the grooves are used to position the patient's teeth;

[0018] The grooves are distributed on two opposite sides of the mouthpiece and are arranged at intervals along the direction from the head end to the tail end of the mouthpiece.

[0019] When the groove is provided, the position where the patient bites can be conveniently located to obtain a more accurate index of the mouth opening degree.

[0020] Furthermore, preferably, a pressure sensor is provided on the mouth opening piece, and the pressure sensor is used to measure the bite force of the patient.

[0021] With the help of the pressure sensor, not only can the mouth opening degree be measured by the mouth opening degree measuring device, but also the bite force index can be obtained at the same time, so that one device has two uses, thereby having better economic benefits.

[0022] In addition, the bite position can be obtained through a pressure sensor, and the mouth opening index can be automatically obtained without observing the scale marks.

[0023] Further, as a preference, there are at least two pressure sensors, and the two pressure sensors are respectively located on two opposite sides of the mouth opening member. When pressure sensors are provided on both sides at the same time, a more accurate bite force detection result can be obtained.

[0024] In addition, preferably, the mouth opening measurement device further comprises a transmission module communicatively connected to the pressure sensor;

[0025] The transmission module is used to send the pressure data acquired by the pressure sensor to an external terminal;

[0026] Alternatively, the mouth opening measurement device further comprises a display mechanism that is communicatively connected to the transmission module, the transmission module is used to send the pressure data acquired by the pressure sensor to the display mechanism, and the display mechanism is used to display the pressure data;

[0027] Alternatively, the mouth opening measurement device also includes a processing module communicatively connected to the transmission module, and a display mechanism communicatively connected to the processing module. The transmission module is used to send the pressure data acquired by the pressure sensor to the processing module. The processing module generates a mouth opening index based on the pressure data and displays the mouth opening index through the display mechanism.

[0028] By means of the transmission module, the data is transmitted and displayed, and the measurement result can be obtained intuitively without changing the state of the mouth opening measurement device or moving the position of the mouth opening measurement device, which is more convenient.

[0029] Further, as a preference, the opening member comprises a body and a measuring strip;

[0030] The measuring strips are detachably arranged on two opposite sides of the opening piece;

[0031] The groove and the pressure sensor are respectively arranged on the measuring strip;

[0032] When a groove is provided on the measuring strip, the sensing area of ​​the pressure sensor is located in the groove.

[0033] When the electrical components are fixed on the measuring strip and the measuring strip is detachably mounted on the main body of the opening piece, the main body can be disinfected more conveniently, thus simplifying the operation and improving the efficiency.

[0034] Furthermore, as a preferred embodiment, two opposite sides of the body are provided with slide grooves, and the measuring bar is embedded in the slide grooves. When the slide grooves are provided, especially when the thickness of the slide grooves is equal to that of the measuring bar, the shape of the measuring bar can be made relatively flush with the body, thereby obtaining a more accurate measurement result.

[0035] Further, as a preference, when the body of the opening piece is hollow and cylindrical, a gap is formed on one side of the slide groove toward the head end.

[0036] A fastener is provided on the measuring bar, and the fastener includes a connecting portion and a fastening portion;

[0037] When the measuring strip is mounted on the slide groove, the connecting portion fills the gap and enables the buckling portion to contact the inner wall of the body.

[0038] When the measuring strip is fastened with the fastener, it can prevent the measuring strip from slipping off and achieve more stable fixation.

[0039] Furthermore, as a preference, a protrusion is formed on one side of the connecting portion facing the slide groove, a depression is formed at a corresponding position of the slide groove, and the protrusion is embedded in the depression.

[0040] By means of the protrusion embedded in the recess, the measuring strip can be prevented from moving along the circumferential direction of the opening piece, thereby further improving the measurement accuracy.

[0041] Preferably, the mouth opening measurement device further comprises:

[0042] Support platform, matched to the patient's upper or lower jaw;

[0043] When the supporting platform is installed in the patient's mouth, the patient bites the mouth opening piece through the supporting platform.

[0044] When a patient's front teeth are missing, the patient's mouth opening can still be accurately measured with the help of the support platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of a mouth opening measurement device according to a first embodiment of the present invention;

[0046] Figure 2 is a schematic diagram of a mouth opening measurement device according to a second embodiment of the present invention;

[0047] Figure 3 is a schematic diagram of a mouth opening measurement device when no groove is provided in the third embodiment of the present invention;

[0048] Figure 4 is a schematic diagram of a mouth opening measurement device when a groove is provided in a third embodiment of the present invention;

[0049] Figure 5 is a schematic diagram of a mouth opening measurement device according to a fourth embodiment of the present invention;

[0050] Figure 6 is a module block diagram of a mouth opening measurement device according to a fifth embodiment of the present invention;

[0051] Figure 7 is a module block diagram of a mouth opening measurement device according to a sixth embodiment of the present invention;

[0052] Figure 8 is a module block diagram of a mouth opening measurement device according to a seventh embodiment of the present invention;

[0053] Fig. 9 is a schematic diagram of a mouth opening measurement device in an eighth embodiment of the present invention when no groove is provided;

[0054] Fig.10 is a schematic diagram of a mouth opening measurement device when a groove is provided in an eighth embodiment of the present invention;

[0055] Fig.11 is a schematic diagram of a mouth opening measurement device according to a ninth embodiment of the present invention;

[0056] Fig.12 is a schematic diagram of a mouth opening measurement device according to a tenth embodiment of the present invention;

[0057] Fig.13 is a schematic diagram of a mouth opening measurement device according to an eleventh embodiment of the present invention;

[0058] Fig.14 Schematic diagram of the mouth opening measurement device according to the twelfth embodiment of the present invention during measurement.

[0059] Description of reference numerals:

[0060] 1-opening piece; 1a-main body; 1b-measuring strip; 2-groove; 3-pressure sensor; 4-slide groove; 4a-gap; 4b-depression; 5-fastener; 5a-connecting part; 5b-fastening part; 5c-protrusion; 6-supporting platform. DETAILED DESCRIPTION

[0061] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0062] Implementation Method 1

[0063] The first embodiment of the present invention provides a mouth opening measurement device, see Figure 1 As shown, including:

[0064] An opening piece 1, wherein the outer diameter of the opening piece 1 gradually increases from the tail end to the head end of the opening piece 1;

[0065] The mouth opening piece 1 is used to be placed in the patient's mouth, and the position where the patient bites on the outer surface of the mouth opening piece 1 indicates the patient's mouth opening index.

[0066] The outer wall surface of the mouth opening piece 1 may be provided with a scale, and the outer wall of the mouth opening piece 1 provided with a scale can conveniently check the patient's mouth opening data in real time. Of course, it is also feasible to mark the position where the patient bites without providing a scale and then measure after the mouth opening piece 1 is taken out.

[0067] In addition, the trailing edge of the mouthpiece 1 may be rounded to provide a gentler contact with the patient's oral cavity.

[0068] A measurement process of the present invention may be as follows:

[0069] 1. Place the tail end of the mouth opening piece 1 into the patient's mouth;

[0070] 2. Adjust the position of the mouth opening member 1 so that the patient's mouth is opened to the maximum size. The diameter corresponding to the position where the patient bites indicates the patient's maximum mouth opening index. When there is a difference in the position where the upper and lower jaws bite, the mouth opening index indicated by the two can also be averaged to obtain the final mouth opening index.

[0071] 3. Adjust the position of the mouth opening piece 1 so that the patient's mouth can be opened to a comfortable size, and the patient's comfortable mouth opening index can be measured.

[0072] The present invention measures the patient's mouth opening degree by means of a mouth opening piece 1 whose outer diameter gradually increases from the tail end to the head end. Compared with the prior art, the present invention can intuitively and quantitatively reflect the size of the patient's mouth opening degree by means of indicators such as the outer diameter and diameter of the plane where the patient's teeth bite, thereby obtaining clear quantitative results.

[0073] It is worth mentioning that the cross section of the mouth opening member 1 can be not only circular, but also other shapes close to a circle, such as an ellipse, a notch, etc. When these shapes are placed in the mouth, the parameter corresponding to the obtained mouth opening index is not necessarily the diameter, but the basic principle is completely consistent with the present invention.

[0074] Implementation Method 2

[0075] The second embodiment of the present invention provides a mouth opening measurement device. The second embodiment is a further improvement of the first embodiment. The main improvement is that in the second embodiment of the present invention, see Figure 2 As shown, the opening piece 1 is hollow and cylindrical.

[0076] The cylindrical mouth opening member 1 can save manufacturing materials. In addition, the cylindrical mouth opening member 1 is not only convenient for placing the patient's tongue, but also convenient for observing the patient's oral cavity.

[0077] Implementation Method 3

[0078] The third embodiment of the present invention provides a mouth opening measurement device. The third embodiment is a further improvement of the first or second embodiment. The main improvement is that in the third embodiment of the present invention, see Figure 3 As shown,

[0079] A plurality of grooves 2 are provided on the mouth opening member 1, and the grooves 2 are used to position the patient's teeth;

[0080] See also Figure 4 As shown, the grooves 2 can be distributed on opposite sides of the mouthpiece 1 and spaced apart in the direction from the head end to the tail end of the mouthpiece 1. Of course, the technical purpose of the present invention can also be basically achieved by only arranging the grooves 2 on one side.

[0081] When the patient bites the mouthpiece 1, the teeth are embedded in the grooves 2, which can achieve better fixation. When a scale is provided, the grooves 2 can correspond to the scale one by one to better complete the degree of the scale.

[0082] Therefore, when the groove 2 is provided, the position where the patient bites can be conveniently located to obtain a more accurate index of the mouth opening degree.

[0083] Implementation Method 4

[0084] The fourth embodiment of the present invention provides a mouth opening measurement device, which is a further improvement of any one of the first to third embodiments. The main improvement is that in the fourth embodiment of the present invention, see Figure 5 As shown, a pressure sensor 3 is arranged on the mouth opening piece 1, and the pressure sensor 3 is used to measure the bite force of the patient.

[0085] With the help of the pressure sensor 3, not only can the mouth opening degree be measured by the mouth opening degree measuring device, but also the bite force index can be obtained at the same time. Therefore, the mouth opening degree measuring device of this embodiment can evaluate the strength of the masseter muscle and the function of the mandibular joint, realizing two uses of one device, thereby having better economic benefits.

[0086] Although one pressure sensor 3 can basically meet the purpose of the present invention, in this embodiment, it is still recommended to set at least two pressure sensors 3. The two pressure sensors 3 can be respectively located on opposite sides of the mouthpiece 1. When the pressure sensors 3 are set on both sides at the same time, a more accurate bite force detection result can be obtained.

[0087] In the present embodiment, the type of the pressure sensor 3 is not particularly limited, but it is particularly worth mentioning that in the present embodiment, a plurality of independent pressure sensors 3 arranged in an array or a flexible pressure sensor 3 may be used.

[0088] Since the multiple independent pressure sensors 3 and the flexible pressure sensors 3 arranged in an array can identify the position of the force, the position of the bite can be automatically obtained. By correlating the position of the pressure sensor 3 with the mouth opening index corresponding to the position in advance, the mouth opening index can be automatically obtained, so there is no need to observe the scale mark, which improves the measurement efficiency and accuracy.

[0089] Implementation Method 5

[0090] The fifth embodiment of the present invention provides a mouth opening measurement device, which is a further improvement of the fourth embodiment. The main improvement is that in the fifth embodiment of the present invention, see Figure 6 As shown, the mouth opening measurement device also includes a transmission module that is in communication with the pressure sensor 3;

[0091] The transmission module is used to send the pressure data acquired by the pressure sensor 3 to an external terminal.

[0092] Among them, the external terminal can be a mobile phone, computer and other devices, and the uploaded pressure data can be automatically converted into mouth opening index through the external terminal and displayed on these devices. Moreover, the data recorded on these devices can also be automatically synchronized into the patient's medical records, realizing intelligent medical care.

[0093] In this embodiment, the transmission module can be connected to the external terminal by wire through a data interface set on the mouth opening measurement device, such as a USB interface, a Thunderbolt interface, etc., or it can be wirelessly connected to the external terminal through a wireless transmission method such as Bluetooth, Wifi, etc.

[0094] Implementation Method 6

[0095] The sixth embodiment of the present invention provides a mouth opening measurement device. The sixth embodiment is different from the fifth embodiment in that, in the fifth embodiment of the present invention, data is displayed and processed by an external terminal; while in the sixth embodiment of the present invention, Figure 7 As shown, the mouth opening measurement device also includes a display mechanism that is communicatively connected to the transmission module. The transmission module is used to send the pressure data acquired by the pressure sensor 3 to the display mechanism, and the display mechanism is used to display the pressure data.

[0096] The display mechanism may be various screens in the prior art, or other display mechanisms such as three-dimensional holographic projection and the like.

[0097] In this embodiment, the pressure data is directly displayed by means of a display mechanism, which has the advantages of being intuitive and quick.

[0098] Implementation Method 7

[0099] The seventh embodiment of the present invention provides a mouth opening measurement device, which is a further improvement of the sixth embodiment. The main improvement is that in the seventh embodiment of the present invention, see Figure 8 As shown, the mouth opening measurement device further includes a processing module connected in communication with the pressure sensor 3, and a display mechanism connected in communication with the processing module.

[0100] The processing module generates a mouth opening index according to the pressure data, and displays the mouth opening index through a display mechanism.

[0101] This embodiment is particularly suitable for the case where the pressure sensor 3 can reflect the pressure position, that is, a plurality of independent pressure sensors 3 are arranged in an array along the direction from the head end to the tail end of the mouth opening member 1, or a flexible pressure sensor 3 is used. In this embodiment, after calculation by the processing module, the bite force index and the mouth opening index obtained according to the reflected pressure position can be directly displayed, which is very convenient.

[0102] Implementation Method 8

[0103] The eighth embodiment of the present invention provides a mouth opening measuring device, which is different from the first to seventh embodiments. The main difference is that in the first to seventh embodiments of the present invention, the mouth opening member 1 is a whole; while in the eighth embodiment of the present invention, Fig. 9 As shown, the opening piece 1 comprises a body 1a and a measuring strip 1b;

[0104] The measuring strip 1 b is detachably arranged on two opposite sides of the opening 1 .

[0105] In this embodiment, the mouth opening index can be obtained by the position where the patient bites the measuring strip 1b. Since the measuring strip 1b is in a pressure-bearing position for a long time and is easily damaged, when the measuring strip 1b is detachable, the cost can be reduced by replacing only the measuring strip 1b. Moreover, when the measuring strip 1b is provided, the measuring strip 1b can be made of a material different from that of the body 1a, such as a flexible material, which can ensure the rigidity of the body 1a while also improving the comfort of the patient when using it.

[0106] Further, see Fig.10 As shown, when the opening piece 1 is provided with a groove 2, the groove 2 can be provided on the measuring strip 1b. Similarly, when the opening piece 1 is provided with a pressure sensor 3, the pressure sensor 3 can also be provided on the measuring strip 1b.

[0107] Furthermore, when a groove 2 is provided on the measuring strip 1 b , the sensing area of ​​the pressure sensor 3 can be located in the groove 2 .

[0108] When the electrical components, such as the pressure sensor 3, are fixed on the measuring strip 1b and the measuring strip 1b is detachably mounted on the body 1a of the opening member 1, the body 1a can be disinfected more conveniently, thus simplifying the operation and improving the efficiency.

[0109] Implementation Method 9

[0110] The ninth embodiment of the present invention provides a mouth opening measurement device, which is a further improvement of the eighth embodiment. The main improvement is that in the ninth embodiment of the present invention, see Fig.11 As shown, two opposite sides of the body 1 a are provided with slide grooves 4 , and the measuring strip 1 b is embedded in the slide grooves 4 .

[0111] When the slide groove 4 is provided, especially when the thickness of the slide groove 4 is equal to that of the measuring strip 1b, the shape of the measuring strip 1b can be made relatively flush with the body 1a, thereby obtaining a more accurate measurement result.

[0112] Implementation Method 10

[0113] The tenth embodiment of the present invention provides a mouth opening measurement device, which is a further improvement of the ninth embodiment. The main improvement is that in the tenth embodiment of the present invention, see Fig.12 As shown, when the body 1a of the opening piece 1 is hollow and formed into a cylindrical shape, the side of the slide groove 4 facing the head end is left empty and forms a gap 4a.

[0114] The measuring strip 1b is provided with a fastener 5, which includes a connecting portion 5a and a fastening portion 5b;

[0115] When the measuring strip 1 b is mounted on the slide groove 4 , the connecting portion 5 a fills the gap 4 a and the buckling portion 5 b contacts the inner wall of the body 1 a .

[0116] When the measuring strip 1 b is fastened with the fastener 5 , it is possible to prevent the measuring strip 1 b from slipping off, thereby achieving more stable fixation.

[0117] Implementation Method Eleven

[0118] The eleventh embodiment of the present invention provides a mouth opening measurement device, which is a further improvement of the tenth embodiment. The main improvement is that in the eleventh embodiment of the present invention, see Fig.13 As shown, a protrusion 5c is formed on one side of the connecting portion 5a facing the slide slot 4, and a recess 4b is formed at a corresponding position of the slide slot 4, and the protrusion 5c is embedded in the recess 4b.

[0119] By means of the protrusion 5c embedded in the recess 4b, the measuring strip 1b can be prevented from moving along the circumferential direction of the mouthpiece 1, thereby further improving the measurement accuracy.

[0120] Of course, the forms of the recess 4b and the protrusion 5c may also be swapped, which does not affect the realization of the technical purpose of the present invention.

[0121] Implementation Method Twelve

[0122] The twelfth embodiment of the present invention provides a mouth opening measurement device. The eleventh embodiment is a further improvement of any one of the first to tenth embodiments. The main improvement is that in the eleventh embodiment of the present invention, see Fig.14 As shown, the mouth opening measurement device also includes:

[0123] A support platform 6, which matches the patient's upper jaw or lower jaw;

[0124] When the supporting platform 6 is installed in the patient's mouth, the patient bites the mouth opening piece 1 through the supporting platform 6 .

[0125] Some treatments may cause the patient to lose teeth, and the patient may also lose teeth due to age. When the patient's front teeth are partially missing, it is difficult to bite the mouth opening measurement device.

[0126] In the present embodiment, the supporting platform 6 is provided so that a good measurement result can be obtained regardless of whether the patient's front teeth are intact or not.

[0127] The supporting platform 6 can be made according to the shape of the remaining teeth of the patient and fixed on the remaining teeth of the patient. The supporting platform 6 can be made by 3D printing, plaster model, etc., and can be used once after being made. It is low-cost and very convenient. With the support platform 6, when the patient's front teeth are missing, the patient's mouth opening degree can still be accurately measured.

[0128] Those skilled in the art will appreciate that, in the above-mentioned embodiments, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the above-mentioned embodiments, the technical solutions claimed for protection in the claims of the present application can be basically realized. Therefore, in practical applications, various changes can be made to the above-mentioned embodiments in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A mouth opening measurement device, characterized in that: include: An opening piece (1), wherein the outer diameter of the opening piece (1) gradually increases from the rear end to the front end of the opening piece (1); The mouth opening piece (1) is used to be placed in the patient's mouth, and the position where the patient bites on the outer surface of the mouth opening piece (1) indicates the patient's mouth opening index; A plurality of grooves (2) are provided on the mouth opening member (1), and the grooves (2) are used to position the patient's teeth; The grooves (2) are distributed on two opposite sides of the opening piece (1), and are arranged at intervals along the direction from the head end to the tail end of the opening piece (1); The opening piece (1) comprises a body (1a) and a measuring strip (1b); The measuring strip (1b) is detachably arranged on two opposite sides of the opening member (1); A pressure sensor (3) is provided on the mouth opening piece (1), and the pressure sensor (3) is used to measure the bite force of the patient; The groove (2) and the pressure sensor (3) are respectively arranged on the measuring strip (1b); The sensing area of ​​the pressure sensor (3) is located in the groove (2); The body (1a) is provided with slide grooves (4) on two opposite sides, and the measuring bar (1b) is embedded in the slide grooves (4); and the thickness of the slide groove (4) is equal to that of the measuring bar (1b), so that the shape of the measuring bar (1b) is relatively flush with the body (1a); The main body (1a) of the opening member (1) is hollow and cylindrical; The slide groove (4) is left empty on one side facing the head end to form a gap (4a); a fastener (5) is provided on the measuring strip (1b); the fastener (5) comprises a connecting portion (5a) and a fastening portion (5b); When the measuring strip (1b) is installed on the slide groove (4), the connecting portion (5a) fills the gap (4a) and enables the buckling portion (5b) to contact the inner wall of the body (1a); The mouth opening measurement device also includes: A support platform (6) matched with the patient's upper or lower jaw; When the supporting platform (6) is installed in the patient's mouth, the patient bites the mouth opening member (1) through the supporting platform (6).

2. The mouth opening measuring device according to claim 1, characterized in that: There are at least two pressure sensors (3), and the two pressure sensors (3) are respectively located on two opposite sides of the opening piece (1).

3. The mouth opening measuring device according to claim 1, characterized in that: The mouth opening degree measuring device further comprises a transmission module which is in communication connection with the pressure sensor (3); the transmission module is used for sending the pressure data acquired by the pressure sensor (3) to an external terminal; Alternatively, the mouth opening degree measuring device further comprises a transmission module communicatively connected to the pressure sensor (3), and a display mechanism communicatively connected to the transmission module, the transmission module being used to send the pressure data acquired by the pressure sensor (3) to the display mechanism, and the display mechanism being used to display the pressure data; Alternatively, the mouth opening degree measuring device further comprises a processing module connected in communication with the pressure sensor (3), and a display mechanism connected in communication with the processing module, wherein the processing module generates a mouth opening degree index based on the pressure data, and displays the mouth opening degree index through the display mechanism.

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