Neck movement measurement device for congenital muscular torticollis in children

Abstract

This invention discloses a device for measuring neck movement in children with congenital muscular torticollis; it includes a first laser pen, a second laser pen, a head fixation base, a first protractor, and a second protractor; the first laser pen is vertically fixed to the middle of the front end face of the head fixation base with its light emission direction downward; the second laser pen is horizontally fixed to the middle of the top surface of the head fixation base with its light emission direction backward, and is located on the same plane as the first laser pen; the upper surface of the first protractor is evenly provided with multiple protractor scale lines A, in degrees, centered at the middle of its rear end, extending to the left, right, and front; the second protractor is vertically connected to the rear end of the first protractor, and has an opening at the middle of its lower end; the front surface of the second protractor is evenly provided with multiple protractor scale lines B, in degrees, centered at the middle of its lower end, extending to the left, right, and upper. Beneficial effects: This invention can assist doctors in quickly assessing the limitation of passive range of motion of the neck joints in children with congenital muscular torticollis, making it highly practical.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment and devices, in particular to a device for measuring neck movement of congenital muscular torticollis in children. Background Art

[0002] Congenital muscular torticollis (CMT) is a common and frequently occurring disease in children. It is a disease characterized by limited head and neck movement, head and neck deviation, abnormal posture and craniofacial deformity caused by fibrosis and contracture of one sternocleidomastoid muscle (SCM). Children have limited passive range of motion of the neck joint, which is characterized by limited rotation of the chin toward the affected side of the affected sternocleidomastoid muscle and limited flexion of the neck toward the healthy side of the affected sternocleidomastoid muscle (when a normal infant is fixed in the supine position, the examiner should be able to passively rotate the chin to exceed the shoulder and passively flex the neck to the side until the top of the ear touches the shoulder).

[0003] However, in the prior art, there is no measuring device suitable for quickly checking the severity of congenital muscular torticollis in children, which makes it inconvenient for doctors to quickly evaluate the severity of congenital muscular torticollis in children.

[0004] Thereby, existing problems need to be solved. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a device for measuring neck movement of congenital muscular torticollis in children.

[0006] The technical solution adopted by the present invention to solve the problems of the prior art is: a device for measuring the neck movement of congenital muscular torticollis in children, comprising a first laser pen for measuring the left-right swing amplitude of a child's head, a second laser pen for measuring the radial rotation amplitude of a child's head, a head fixing seat suitable for being fixed horizontally to the middle part of a child's forehead along the front-back direction, a first angle measuring plate suitable for being placed on the child's head to mark the left-right swing angle of the child's head, and a second angle measuring plate suitable for being clamped on the child's neck to mark the radial rotation angle of the child's head;

[0007] The first laser pen is fixed vertically to the middle of the front end surface of the head fixing seat and the light emitting direction is downward; the second laser pen is fixed horizontally to the middle of the top surface of the head fixing seat and the light emitting direction is backward, and is located in the same plane as the first laser pen;

[0008] The first angle measuring plate is arranged horizontally, and a plurality of angle measuring scale lines A are evenly arranged on the upper end surface of the first angle measuring plate in degrees and with the middle of the rear end thereof as the center, and are marked with scales A correspondingly;

[0009] The second protractor plate is vertically connected to the rear end of the first protractor plate, and a hole is opened in the middle of the lower end of the second protractor plate to allow the child's head to pass through and suitable for clamping the child's neck. The front end surface of the second protractor plate is in degrees and has multiple protractor scale lines B evenly arranged on the left, right and upper sides with the middle of the lower end as the center, and corresponding scales B are marked.

[0010] The above technical solution is further explained below:

[0011] Preferably, the scale corresponding to the two angle scale lines A parallel to the rear edge of the first angle plate is "0 degrees"; the scale corresponding to the angle scale line A perpendicular to the rear edge of the first angle plate is "90 degrees"; the scale corresponding to the two angle scale lines B parallel to the lower edge of the second angle plate is "0 degrees"; the scale corresponding to the angle scale line B perpendicular to the lower edge of the second angle plate is "90 degrees".

[0012] Preferably, the head fixing seat is formed into a Z shape, including a first connecting block located at the rear lower part, a second connecting block located at the front upper part, and a third connecting block connected between the front end of the first connecting block and the rear end of the second connecting block;

[0013] The lower bottom surface of the first connecting block is concave to form a fixing surface suitable for abutting the middle part of the forehead of a child, and the fixing surface is provided with an adhesive layer; a fixing groove A for clamping the first laser pen is provided in the middle of the front end surface of the second connecting block along the vertical direction backward, and a fixing groove B for clamping the second laser pen is provided in the middle of the upper end surface along the front-to-back direction downward, and 3M patches for correspondingly fixing the first laser pen and the second laser pen are respectively provided in the fixing groove A and the fixing groove B.

[0014] Preferably, the head fixing seat further comprises a strip-type bubble level for measuring its horizontality;

[0015] A slot is provided in the middle of the upper end surface of the first connecting block downwardly along the front-to-back direction, and the strip-type bubble level is fixedly mounted in the slot.

[0016] Preferably, it also includes a height-adjusting support member for padding the middle part of the back of the child's neck so as to ensure that the middle part of the child's forehead is in a horizontal state when the child's head is placed on the first angle measuring board;

[0017] The height-adjusting supporting member is fixedly arranged at the middle portion of the rear end of the first angle measuring plate.

[0018] Preferably, the height-adjusting lifting member comprises a U-shaped limiting seat with a side opening arranged in the front-to-back direction for lifting and limiting the left-right movement of the child's neck, an inflatable pillow fixed in the U-shaped limiting seat, an inflatable balloon arranged on the left side of the U-shaped limiting seat, and an air guide tube with an air release valve connected between the inflatable pillow and the inflatable balloon;

[0019] A tube passage penetrating through the left inner wall of the U-shaped limit seat is provided on the left side thereof, and the air guide tube is passed through the tube passage; when the inflatable pillow is inflated by the inflatable balloon, the height of the inflatable pillow is adjustable so that the height of the child's neck supported thereon can be adjusted.

[0020] Preferably, the center of the circle corresponding to the multiple measuring scale lines A on the first measuring plate is located in the middle of the bottom surface of the U-shaped limit seat, so that the connection line between the middle part of the back of the child's neck supported by the height adjustment support member is perpendicular to the upper end surface of the first measuring plate.

[0021] Preferably, a left insertion tube is fixedly provided on the left side of the rear end of the upper end surface of the first protractor plate, and a right insertion tube is fixedly provided on the right side of the rear end of the upper end surface of the first protractor plate; the lower left end of the second protractor plate can be detachably inserted into the left insertion tube, and the lower right end of the second protractor plate can be detachably inserted into the right insertion tube.

[0022] Preferably, it also includes two height adjustment bolts for fixing the second angle measuring plate; the two height adjustment bolts are correspondingly fixed outside the left insert tube and the right insert tube, and are correspondingly screwed into the left insert tube and the right insert tube, so as to correspondingly abut against the left lower end and the right lower end of the second angle measuring plate;

[0023] When the two height adjustment bolts are loosened, the height of the second angle measuring plate can be adjusted, so that the height position of the center of the circle corresponding to the plurality of angle measuring scale lines B on the second angle measuring plate can be adjusted.

[0024] Preferably, the front surface of the lower left end and the front surface of the lower right end of the second protractor plate are respectively provided with a height adjustment marking line in a vertical direction, and the multiple scales on the two height adjustment marking lines are opposite to each other.

[0025] The beneficial effects of the present invention are:

[0026] First, the present invention provides a device for measuring neck movement of congenital muscular torticollis in children. During specific implementation, the child is laid flat in a supine position, the child's head is rested on the first angle measuring board, the middle back of the child's neck is located in the middle of the rear end of the upper end surface of the first angle measuring board, the second angle measuring board is clamped outside the child's neck, and the child's head is manually adjusted so that its central axis is perpendicular to the front end surface of the second angle measuring board, the middle part of its forehead is horizontal, and the central axis of the child's head and the angle measuring scale line B with a scale of 90 degrees at the middle position of the front end surface of the second angle measuring board are in the same plane. Subsequently, the first laser pen and the second laser pen are turned on, and the The head fixing base on which the first laser pen and the second laser pen are fixed is fixed horizontally to the middle part of the forehead of the child in the front-to-back direction, so that the light beam emitted by the second laser pen is perpendicular to the angle measuring scale line B with a scale of 90 degrees at the middle position of the front end surface of the second angle measuring plate and is in the same plane. On the one hand, with the middle back of the child's neck (equivalent to the middle of the rear end of the upper end surface of the first angle measuring plate) as the center of the circle, the child's head is manually swung to the left to the maximum swing angle, and the maximum angle of the child's head swinging to the left can be measured by comparing the scale A on the angle measuring scale line A corresponding to the light beam emitted by the first laser pen, and the middle back of the child's neck (equivalent to the middle of the rear end of the upper end surface of the first angle measuring plate) is taken as the center of the circle. The center of the circle is the center of the middle part of the child's neck (equivalent to the middle part of the middle and lower end of the front end surface of the second angle measuring plate) and the child's head is manually rotated counterclockwise to the left to the maximum rotation angle. The maximum angle of the child's head to the left can be measured by comparing the scale A on the angle measuring scale line A corresponding to the light beam point emitted by the second laser pen, and the scale B on the angle measuring scale line B corresponding to the light beam point emitted by the second laser pen can be used to measure the maximum angle of the child's head to the left. By taking the center point of the second protractor plate (equivalent to the middle part of the middle and lower end of the front end surface of the second protractor plate) as the center of the circle, manually rotating the child's head clockwise to the right to the maximum rotation angle, the maximum angle of rotation of the child's head to the right can be measured by comparing the scale B on the protractor line B corresponding to the light beam point emitted by the second laser pen. As a result, doctors can quickly compare the difference between the two corresponding maximum rotation angle values ​​to evaluate the degree of rotation of the neck of children with congenital muscular torticollis. Subsequently, the present invention can indeed assist doctors in quickly evaluating the limited passive range of motion of the neck joints of children with congenital muscular torticollis, making it highly practical to use. Therefore, the present invention is bound to have very good application prospects, so that it can be effectively promoted and popularized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1is a schematic diagram of the overall structure when the first laser pen and the second laser pen are fixedly mounted on the head fixing seat in this embodiment;

[0028] Figure 2 is an exploded view of the first laser pen and the second laser pen when they are fixed on the head fixing seat in this embodiment;

[0029] Figure 3 is a schematic diagram of the overall structure of the height-adjusting lifting member in this embodiment;

[0030] Figure 4 is a schematic diagram of the overall structure of the embodiment when the height-adjusting supporting member is fixed to the first angle protractor plate and the second angle protractor plate is fixed to the first angle protractor plate;

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0032] Figure Number:

[0033] A first laser pointer 10;

[0034] A second laser pointer 20;

[0035] Head fixing seat 30;

[0036] First connecting block 301; card slot 3011; second connecting block 302; fixing slot A 3021; ​​fixing slot B 3022; third connecting block 303; adhesive layer 304; strip-type bubble level 305;

[0037] A first angle measuring plate 40;

[0038] Angle scale line A401; left insert tube 402; right insert tube 403;

[0039] A second angle measuring plate 50;

[0040] Passing 501; Angle scale line B502; Heightening mark line 503;

[0041] Raise the lifting member 60;

[0042] U-shaped limit seat 601; tube passage 6011; inflatable pillow 602; inflatable balloon 603; air guide tube 604;

[0043] Adjust the bolt 70 degrees. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly and intuitively understand the inventive essence of the present invention.

[0045] Figure 1is a schematic diagram of the overall structure when the first laser pen and the second laser pen are fixedly mounted on the head fixing seat in this embodiment; Figure 2 is an exploded view of the first laser pen and the second laser pen when they are fixed on the head fixing seat in this embodiment; Figure 3 is a schematic diagram of the overall structure of the height-adjusting lifting member in this embodiment; Figure 4 is a schematic diagram of the overall structure of the embodiment when the height-adjusting supporting member is fixed to the first angle protractor plate and the second angle protractor plate is fixed to the first angle protractor plate;

[0046] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown;

[0047] The present invention provides a device for measuring the neck movement of congenital muscular torticollis in children, comprising a first laser pen 10 for measuring the left-right swing amplitude of a child's head, a second laser pen 20 for measuring the radial rotation amplitude of a child's head, a head fixing seat 30 suitable for being fixed horizontally to the middle part of a child's forehead along the front-back direction, a first angle measuring plate 40 suitable for being placed on the child's head to indicate the left-right swing angle of the child's head, and a second angle measuring plate 50 suitable for being clamped on the child's neck to indicate the radial rotation angle of the child's head;

[0048] The first laser pen 10 is vertically fixed to the middle of the front end surface of the head fixing seat 30 and the light emitting direction is downward; the second laser pen 20 is horizontally fixed to the middle of the top surface of the head fixing seat 30 and the light emitting direction is backward, and is located in the same plane as the first laser pen 10;

[0049] Furthermore, the first angle measuring plate 40 is arranged horizontally, and a plurality of angle measuring scale lines A401 are evenly arranged on the upper end surface of the first angle measuring plate 40 in degrees and with the middle of the rear end thereof as the center, and are marked with scales A correspondingly;

[0050] At the same time, the second protractor plate 50 is vertically connected to the rear end of the first protractor plate 40, and a hole 501 is opened in the middle of the lower end of the second protractor plate 50 to allow the child's head to pass through and suitable for clamping the child's neck. The front end surface of the second protractor plate 50 is in units of degrees and has a plurality of protractor scale lines B502 evenly arranged on the left, right and upper sides with the middle of the lower end as the center, and the scale B is marked accordingly.

[0051] In implementation, the sizes of children's heads are basically the same. When the child's head is placed on the first angle measuring plate 40, the middle of the lower end of the front end surface of the second angle measuring plate 50 is positioned as close to the center point of the middle of the child's neck as possible.

[0052] Preferably, in this embodiment, the scale corresponding to the two angle scale lines A401 parallel to the rear edge of the first protractor plate 40 is "0 degree"; the scale corresponding to the angle scale line A401 perpendicular to the rear edge of the first protractor plate 40 is "90 degrees"; the scale corresponding to the two angle scale lines B502 parallel to the lower edge of the second protractor plate 50 is "0 degree"; the scale corresponding to the angle scale line B502 perpendicular to the lower edge of the second protractor plate 50 is "90 degrees".

[0053] Based on the above, it should be clarified that the general steps of using the present invention before use are:

[0054] In the specific implementation, the child is made to lie flat in a supine position, with the child's head resting on the first angle measuring plate 40, and the middle back of the child's neck is located in the middle of the rear end of the upper end surface of the first angle measuring plate 40, and the second angle measuring plate 50 is clamped outside the child's neck, and then the child's head is manually adjusted so that the central axis is perpendicular to the front end surface of the second angle measuring plate 50, and the middle part of the forehead is horizontal, and the central axis of the child's head and the angle measuring scale line B502 with a scale of 90 degrees in the middle position of the front end surface of the second angle measuring plate 50 are in the same plane.

[0055] Subsequently, the first laser pen 10 and the second laser pen 20 are turned on, and the head fixing base 30 to which the first laser pen 10 and the second laser pen 20 are fixed is horizontally fixed to the middle part of the child's forehead along the front-to-back direction, so that the light beam spot emitted by the second laser pen 20 is perpendicular to the measuring scale line B502 with a scale of 90 degrees at the middle position of the front end surface of the second measuring plate 50 and is in the same plane.

[0056] On the one hand, with the middle back of the child's neck (equivalent to the middle back of the upper end surface of the first angle measuring plate 40) as the center of the circle, the child's head is manually swung to the left to the maximum swing angle, and the scale A on the angle measuring scale line A401 corresponding to the light beam point emitted by the first laser pen 10 can be used to measure the maximum angle of the child's head swinging to the left, and with the middle back of the child's neck (equivalent to the middle back of the upper end surface of the first angle measuring plate 40) as the center of the circle, the child's head is manually swung to the right to the maximum swing angle, and the scale A on the angle measuring scale line A401 corresponding to the light beam point emitted by the first laser pen 10 can be used to measure the maximum angle of the child's head swinging to the right.

[0057] Therefore, it is convenient for doctors to quickly compare the difference between the two corresponding maximum swing angle values ​​to evaluate the degree of lateral flexion of the neck in children with congenital muscular torticollis.

[0058] If the difference between the two corresponding maximum swing angle values ​​is less than or equal to 5 degrees, the degree of lateral flexion of the neck of congenital muscular torticollis in children is assessed as good; if the difference between the two corresponding maximum swing angle values ​​is 5-10 degrees, the degree of lateral flexion of the neck of congenital muscular torticollis in children is assessed as good; if the difference between the two corresponding maximum swing angle values ​​is 10-15 degrees, the degree of lateral flexion of the neck of congenital muscular torticollis in children is assessed as intermediate; if the difference between the two corresponding maximum swing angle values ​​is greater than 15 degrees, the degree of lateral flexion of the neck of congenital muscular torticollis in children is assessed as severe, and it shall be recorded in the "Registration Form for the Full Management of Children with Congenital Muscular Torticollis Using the Modified Cheng and Tang Scoring System".

[0059] On the other hand, with the center point of the middle of the child's neck (equivalent to the middle of the middle and lower end of the front end surface of the second protractor plate 50) as the center of the circle, manually rotate the child's head counterclockwise to the left to the maximum rotation angle, and compare the scale B on the protractor scale line B502 corresponding to the light beam point emitted by the second laser pen 20 to measure the maximum angle of rotation of the child's head to the left, and with the center point of the middle of the child's neck (equivalent to the middle of the middle and lower end of the front end surface of the second protractor plate 50) as the center of the circle, manually rotate the child's head clockwise to the right to the maximum rotation angle, and compare the scale B on the protractor scale line B502 corresponding to the light beam point emitted by the second laser pen 20 to measure the maximum angle of rotation of the child's head to the right.

[0060] Therefore, it is convenient for doctors to quickly compare the difference between the two corresponding maximum rotation angle values ​​to evaluate the degree of neck rotation in children with congenital muscular torticollis.

[0061] If the difference between the two corresponding maximum rotation angle values ​​is less than or equal to 5 degrees, the degree of neck rotation of congenital muscular torticollis in children is assessed as good; if the difference between the two corresponding maximum rotation angle values ​​is 5-10 degrees, the degree of neck rotation of congenital muscular torticollis in children is assessed as good; if the difference between the two corresponding maximum rotation angle values ​​is 10-15 degrees, the degree of neck rotation of congenital muscular torticollis in children is assessed as intermediate; if the difference between the two corresponding maximum rotation angle values ​​is greater than 15 degrees, the degree of neck rotation of congenital muscular torticollis in children is assessed as severe, and it should be recorded in the "Registration Form for the Full Management of Children with Congenital Muscular Torticollis Using the Modified Cheng and Tang Scoring System".

[0062] Then, through the above two subsequent steps, the present invention can indeed assist doctors in quickly evaluating the limited passive range of motion of the cervical joints of children with congenital muscular torticollis, making it highly practical to use.

[0063] Therefore, the present invention must have very good application prospects, so that it can be effectively promoted and popularized.

[0064] Preferably, in this embodiment, the head fixing seat 30 is formed into a Z shape, including a first connecting block 301 located at the rear lower part, a second connecting block 302 located at the front upper part, and a third connecting block 303 connected between the front end of the first connecting block 301 and the rear end of the second connecting block 302;

[0065] Among them, the lower bottom surface of the first connecting block 301 is concave to form a sticking surface suitable for sticking to the middle part of the forehead of a child, and the sticking surface is provided with an adhesive layer 304. During implementation, the adhesive layer 304 is preferably glue; a fixing groove A3021 for clamping the first laser pen 10 is provided in the middle of the front end surface of the second connecting block 302 backward along the vertical direction, and a fixing groove B3022 for clamping the second laser pen 20 is provided in the middle of the upper end surface downward along the front-to-back direction, and 3M patches for correspondingly fixing the first laser pen 10 and the second laser pen 20 are respectively provided in the fixing groove A3021 and the fixing groove B3022.

[0066] Therefore, it can be known that when the first connecting block 301 is attached to the middle part of the child's forehead, the second connecting block 302 can extend forward to the front side of the child's head so that the child's head will not block the light beam emitted by the first laser pen 10 to the first protractor plate 40.

[0067] Here, it can also be understood that for laser pens on the market, their outer diameters and lengths are basically not much different. Therefore, in this technical solution, the first laser pen 10 and the second laser pen 20 can be directly purchased on the market and fixed to the head fixing seat 30 through 3M patches.

[0068] Furthermore, in the present technical solution, the head fixing seat 30 further includes a strip-type bubble level 305 for measuring its horizontality;

[0069] A slot 3011 is provided downwardly along the front-rear direction at the middle of the upper end surface of the first connecting block 301 , and the strip-type bubble level 305 is preferably fixed to the slot 3011 by adhesive.

[0070] Therefore, on the one hand, before using the present invention, the head fixing seat 30 can be horizontally fixed in the middle part of the child's forehead by visually checking the horizontality of the strip-type bubble level 305. On the other hand, the child's head can be swung or rotated with reference to the horizontality of the strip-type bubble level 305, so that the child's head can be swung and rotated in a standard manner, making it less likely to have operational errors.

[0071] Furthermore, in a specific implementation, the present invention further includes a height-adjusting support member 60 for padding the middle part of the back of the child's neck so as to ensure that the middle part of the child's forehead is in a horizontal state when the child's head is placed on the first angle measuring plate 40;

[0072] The height-adjusting supporting member 60 is fixedly disposed at the middle portion of the rear end of the first angle measuring plate 40 .

[0073] Thus, the height-adjusting support member 60 is adjusted to a suitable height to support the middle part of the back of the child's neck, so that the child can lie flat and comfortably, and the child can be well assisted to maintain the middle part of the forehead of the child in a horizontal state.

[0074] Preferably, in the present technical solution, the height-adjusting support member 60 comprises a U-shaped limit seat 601 with a side opening arranged in the front-to-back direction for supporting and limiting the left-right movement of the child's neck, an inflatable pillow 602 preferably fixed in the U-shaped limit seat 601 by adhesive, an inflatable balloon 603 arranged on the left side of the U-shaped limit seat 601, and an air guide tube 604 with an air release valve connected between the inflatable pillow 602 and the inflatable balloon 603;

[0075] Among them, a tube passage 6011 is opened on the left side of the U-shaped limit seat 601 and passes through its left inner wall, and the air guide tube 604 is passed through the tube passage 6011; when the inflatable pillow 602 is inflated by the inflatable balloon 603, the height of the inflatable pillow 602 is adjustable so that the height of the child's neck supported thereon can be adjusted.

[0076] With respect to the above scheme, it can be understood that the U-shaped limit seat 601 provided can effectively limit the left and right movement of the child's neck, so that when the child's head is subsequently swung or rotated, the center position of the swing circle and the center position of the rotation circle are not easy to deviate, and the inflatable pillow 602 provided is soft, so that the child's headrest is comfortable, and the inflatable balloon 603 and the air guide tube 604 with an air release valve provided make the inflatable pillow 602 height adjustable, so that the height of the child's neck supported thereon can be adjusted, so that the present invention can be suitable for children with different neck fatness and thinness, so as to ensure that the middle part of the forehead of the child's head is in a horizontal state when the pillow is placed on the middle part of the back of the child's neck.

[0077] Furthermore, in the present technical solution, the center of the circle corresponding to the multiple angle scale lines A401 on the first angle protractor plate 40 is located in the middle of the lower bottom surface of the U-shaped limit seat 601, so that the connecting line between the middle part of the back of the child's neck supported by the height adjustment support 60 is perpendicular to the upper end surface of the first angle protractor plate 40.

[0078] Therefore, even when the child's head is swung, the center of the swing is located just below the middle back of the child's neck, and the middle back of the child's neck is fixed, so the center of the swing will not move, so that the subsequent measurement of the left and right swing angle of the child's head is accurate.

[0079] Furthermore, in the present technical solution, a left plug-in tube 402 is fixedly provided on the left side of the upper end surface rear end of the first protractor plate 40, and a right plug-in tube 403 is fixedly provided on the right side of the upper end surface rear end of the first protractor plate 40; the left lower end of the second protractor plate 50 can be detachably inserted into the left plug-in tube 402, and the right lower end of the second protractor plate 50 can be detachably inserted into the right plug-in tube 403.

[0080] Therefore, before use, the child is laid flat in a supine position with his head resting on the first protractor plate 40, and then the left insert tube 402 and the right insert tube 403 are inserted into the second protractor plate 50, which saves effort in operation and is convenient to use.

[0081] Furthermore, in a preferred embodiment, the present invention further comprises two height adjustment bolts 70 for fixing the second angle measuring plate 50;

[0082] The two height adjustment bolts 70 are fixedly mounted outside the left insert tube 402 and the right insert tube 403, and are screwed into the left insert tube 402 and the right insert tube 403, so as to respectively abut against the left lower end and the right lower end of the second angle measuring plate 50;

[0083] When the two height adjustment bolts 70 are loosened, the height of the second angle measuring plate 50 can be adjusted, so that the height position of the center of the circle corresponding to the plurality of angle measuring scale lines B502 on the second angle measuring plate 50 can be adjusted.

[0084] Furthermore, a marking point is made in advance at the center position of the side of the child's neck, and then the child is laid flat in a supine position so that his head is supported and fixed on the first protractor plate 40. Subsequently, the height of the second protractor plate 50 is adjusted according to the height of the lifted neck, so that the two "0 degrees" corresponding protractor scale lines B502 on the second protractor plate 50 are exactly flush with the corresponding marking points. At this time, the center of the circle corresponding to the multiple protractor scale lines B502 on the second protractor plate 50 can be made to coincide with the center of the child's neck.

[0085] Therefore, even when the child's head is rotated, the center of rotation (neck center) can always remain consistent with the center of the circle corresponding to the multiple angle scale lines B502 on the second angle measuring plate 50, so that the subsequent measurement of the child's head rotation angle is accurate.

[0086] Therefore, for the left and right swing and radial rotation of the child's head, the corresponding measured swing angle and rotation angle can basically match the actual situation, making the swing angle and rotation angle measurement accurate and reliable.

[0087] It should be added that, in a specific implementation, the lower left front surface and the lower right front surface of the second protractor plate 50 are respectively provided with a vertical height adjustment mark line 503, and the multiple scales on the two height adjustment marks 503 are opposite to each other.

[0088] Therefore, by comparing the two corresponding height adjustment marking lines 503, the heights of the left and right ends of the second protractor plate 50 can be adjusted to ensure that it will not be skewed when being adjusted in height.

[0089] Then, the use effect of the present invention can be optimized.

[0090] Other embodiments and the like are not described one by one here.

[0091] To sum up, the overall structure of the present invention is simple, easy to implement, easy to operate, highly practical, highly specific, and has low manufacturing cost. There is no need to increase too much cost in the improvement of the structure and the improvement of the technology, which makes the present invention bound to have good market promotion value. The present invention will be very popular and can be effectively popularized.

[0092] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any transformation of equivalent structures or equivalent processes made using the contents of the present invention specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for measuring neck movement of congenital muscular torticollis in children, characterized by: It comprises a first laser pen for measuring the left-right swing amplitude of a child's head, a second laser pen for measuring the radial rotation amplitude of a child's head, a head fixing seat suitable for being fixed horizontally to the middle part of a child's forehead along the front-back direction, a first angle measuring plate suitable for being placed on the child's head to mark the left-right swing angle of the child's head, and a second angle measuring plate suitable for being clamped on the child's neck to mark the radial rotation angle of the child's head; The first laser pen is fixed vertically to the middle of the front end surface of the head fixing seat and the light emitting direction is downward; the second laser pen is fixed horizontally to the middle of the top surface of the head fixing seat and the light emitting direction is backward, and is located in the same plane as the first laser pen; The first angle measuring plate is arranged horizontally, and a plurality of angle measuring scale lines A are evenly arranged on the upper surface of the first angle measuring plate in degrees and with the middle of the rear end thereof as the center, and are marked with scales A correspondingly; The second angle measuring plate is vertically connected to the rear end of the first angle measuring plate, and a hole is provided in the middle of the lower end of the second angle measuring plate to allow the head of a child to pass through and to clamp the neck of a child. The front end surface of the second angle measuring plate is uniformly provided with a plurality of angle measuring scale lines B on the left, right and upper sides thereof in units of degrees and with the middle of the lower end as the center of the circle, and corresponding scales B are marked; The scale corresponding to the two angle scale lines A parallel to the rear edge of the first angle protractor is "0 degree"; the scale corresponding to the angle scale line A perpendicular to the rear edge of the first angle protractor is "90 degree"; the scale corresponding to the two angle scale lines B parallel to the lower edge of the second angle protractor is "0 degree"; the scale corresponding to the angle scale line B perpendicular to the lower edge of the second angle protractor is "90 degree"; It also includes a height-adjusting support member for padding the middle part of the back of the child's neck so as to ensure that the middle part of the child's forehead is in a horizontal state when the child's head is placed on the first angle measuring board; The height adjustment support member is fixedly arranged at the middle part of the rear end of the first angle measuring plate; The height-adjusting lifting member comprises a U-shaped limiting seat with a side opening arranged in the front-to-back direction for supporting and limiting the left-right movement of the child's neck, an inflatable pillow fixed in the U-shaped limiting seat, an inflatable balloon arranged on the left side of the U-shaped limiting seat, and an air guide tube with an air release valve connected between the inflatable pillow and the inflatable balloon; The left side of the U-shaped limit seat is provided with a tube passage penetrating through the left inner wall thereof, and the air guide tube is arranged through the tube passage; when the inflatable pillow is inflated by the inflatable balloon, the height of the inflatable pillow is adjustable, so that the height of the child's neck supported thereon is adjustable; The center of the circle corresponding to the plurality of angle scale lines A on the first angle measuring plate is located in the middle of the bottom surface of the U-shaped limit seat, so that the connection line between the middle part of the back of the child's neck supported by the height adjustment support member is perpendicular to the upper end surface of the first angle measuring plate; A left inserting tube is fixedly provided on the left side of the rear end of the upper end surface of the first angle measuring plate, and a right inserting tube is fixedly provided on the right side of the rear end of the upper end surface of the first angle measuring plate; the left lower end of the second angle measuring plate can be detachably inserted into the left inserting tube, and the right lower end of the second angle measuring plate can be detachably inserted into the right inserting tube; It also includes two height adjustment bolts for fixing the second angle measuring plate; the two height adjustment bolts are fixedly arranged outside the left insert tube and the right insert tube respectively, and are screwed into the left insert tube and the right insert tube respectively, so as to respectively abut against the left lower end and the right lower end of the second angle measuring plate; When the two height adjustment bolts are loosened, the height of the second angle measuring plate can be adjusted, so that the height position of the center of the circle corresponding to the plurality of angle measuring scale lines B on the second angle measuring plate can be adjusted.

2. The device for measuring neck movement of congenital muscular torticollis in children according to claim 1, characterized in that: The head fixing seat is formed into a Z shape, including a first connecting block located at the rear lower part, a second connecting block located at the front upper part, and a third connecting block connected between the front end of the first connecting block and the rear end of the second connecting block; The lower bottom surface of the first connecting block is concave to form a fixing surface suitable for abutting the middle part of the forehead of a child, and the fixing surface is provided with an adhesive layer; a fixing groove A for clamping the first laser pen is provided in the middle of the front end surface of the second connecting block along the vertical direction backward, and a fixing groove B for clamping the second laser pen is provided in the middle of the upper end surface along the front-to-back direction downward, and 3M patches for correspondingly fixing the first laser pen and the second laser pen are respectively provided in the fixing groove A and the fixing groove B.

3. The device for measuring neck movement of congenital muscular torticollis in children according to claim 2, characterized in that: The head fixing seat also includes a strip-type bubble level for measuring its horizontality; A slot is provided in the middle of the upper end surface of the first connecting block downwardly along the front-to-back direction, and the strip-type bubble level is fixedly mounted in the slot.

4. The device for measuring neck movement of congenital muscular torticollis in children according to claim 1, characterized in that: The front surface of the lower left end and the front surface of the lower right end of the second protractor are respectively provided with height adjustment marking lines in a vertical direction, and the multiple scales on the two height adjustment marking lines are opposite to each other.

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