Scoliosis Cobb Angle Measuring Instrument

Abstract

The utility model provides a scoliosis cobb angle measuring instrument, which belongs to the technical field of medical measuring instruments. It solves the technical problems of the prior art such as the reading is not direct enough. The scoliosis cobb angle measuring instrument includes a T-shaped upper vertebral reference scale body and a lower vertebral reference scale body, a dial is provided on the outer end of the lower vertical body of the lower vertebral reference scale body, a main slide groove arranged along the central axis direction of the upper vertebral reference scale body is provided on the upper vertical body of the upper vertebral reference scale body, a rotating seat is provided at the center of the dial, and the rotating seat is inserted in the main slide groove and can slide along the central axis direction of the upper vertical body, a pointer-type cover connected to the rotating seat and preventing separation is provided on the outer end of the rotating seat, and a follow-up structure is provided between the pointer-type cover and the upper vertical body, which can synchronously drive the upper vertebral reference scale body to rotate synchronously when the pointer-type cover rotates. The utility model has the advantages of intuitive reading without calculation, large measuring range, simple operation and easy use, and no obstruction when reading.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical measuring instruments, relates to orthopedic measuring instruments, and in particular to a scoliosis cobb angle measuring instrument. Background Art

[0002] The scoliosis cobb angle measuring instrument is a tool to assist doctors in judging the condition of the disease. On the standing full spine anteroposterior X-ray film taken by the patient, the measuring instrument is used to find the two vertebrae with the most severe inclination on the upper and lower sections of the spinal curve, and the straight lines where the upper and lower edges are located are measured. A vertical line is drawn on each of the two straight lines, and the angle between the vertical lines is the patient's scoliosis cobb angle. In the prior art, manual line drawing or auxiliary measuring tools are usually used. Manual line drawing is prone to errors, and auxiliary measuring tools usually have problems such as difficult reading, inaccurate measurement, small measurement range, complex structure and cumbersome use steps. To this end, people have conducted long-term exploration and proposed various solutions.

[0003] For example, a Chinese patent document discloses a scoliosis cobb angle measuring device [application number: 202020150873.1], which includes two swing plates, a slide groove is provided on the swing plate, a slider is movably connected in the slide groove, a locking bolt is connected to the slider, and a measuring plate is fixedly connected, the measuring plate is provided with a long through groove, an adjustment screw is installed in the long through groove, the rear end of the adjustment screw is connected to a mounting column, and the mounting column is connected to an angle measuring plate. When the utility model is used, the scoliosis cobb angle can be calculated by the reading of the angle measuring plate.

[0004] Although the above scheme can measure the cobb angle, the overall structure is complex and the use steps are cumbersome; and manual assistance calculation is still required, and the reading is not direct enough. Summary of the invention

[0005] The utility model aims to provide a scoliosis cobb angle measuring instrument for the above-mentioned problems, and solves the technical problems of the prior art such as insufficient direct readings.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: the scoliosis cobb angle measuring instrument comprises a T-shaped upper vertebral reference ruler body and a lower vertebral reference ruler body, a dial is arranged on the outer end of the lower vertical body of the lower vertebral reference ruler body, a main slide groove arranged along the central axis direction of the upper vertebral reference ruler body is opened on the upper vertical body of the upper vertebral reference ruler body, a rotating seat is arranged in the center of the dial, and the rotating seat is inserted in the main slide groove and can slide along the central axis direction of the upper vertical body, a pointer-type cover is arranged on the outer end of the rotating seat, which is connected to the rotating seat for rotation and can prevent the upper vertical body from separating from the rotating seat, and a follower structure is arranged between the pointer-type cover and the upper vertical body, which can synchronously drive the upper vertebral reference ruler body to rotate when the pointer-type cover rotates.

[0007] The structure in which the rotating seat is inserted into the main slide slot allows the upper vertebral reference scale body and the lower vertebral reference scale body to rotate and slide relative to each other, and the cobb angle can be obtained through the dial set at the center of the rotating seat. The accurate cobb angle can be directly obtained through the degree on the dial, solving the problem of indirect reading and cumbersome operation steps.

[0008] In the above-mentioned scoliosis cobb angle measuring instrument, the following structure includes a following slide groove arranged on one side or both sides of the main slide groove, a following slider is arranged in the following slide groove, and the following slider is fixedly connected to the pointer-type cover. The following slider fixedly connected to the pointer-type cover and arranged in the following slide groove can make the pointer-type cover rotate synchronously with the upper vertebral reference scale body when the upper vertebral reference scale body and the lower vertebral reference scale body can rotate relatively.

[0009] In the above-mentioned scoliosis cobb angle measuring instrument, the pointer-type cover is hingedly connected to the rotating seat. The pointer-type cover and the rotating seat are hingedly connected so that the pointer-type cover and the rotating seat can rotate relative to each other.

[0010] In the above-mentioned scoliosis cobb angle measuring instrument, the center of the pointer-type cover is provided with a rotating shaft, one end of the rotating shaft is fixedly connected to the pointer-type cover, the other end of the rotating shaft is inserted into the rotating shaft blind hole of the rotating seat, at least one axial anti-slip block distributed along the axial direction is provided on the other end of the rotating shaft, the inner end of the rotating shaft blind hole is provided with an axial anti-slip block movable annular groove, the side of the rotating shaft blind hole is provided with an insertion groove that enables the axial anti-slip block movable annular groove to be axially connected to the outside, and the insertion groove corresponds to the axial anti-slip block one by one. The structure of the axial anti-slip block and the axial anti-slip block movable annular groove is provided so that the pointer-type cover will not slip out when the pointer-type cover and the lower end vertebral reference ruler rotate relative to each other.

[0011] In the above-mentioned scoliosis cobb angle measuring instrument, the pointer-type cover includes a cover plate, on which an upper pointer and a lower pointer are arranged, and the central axis of the upper pointer and the lower pointer is located on the same straight line as the central axis of the upper vertical body. The upper pointer and the lower pointer can assist in reading when the outer pointer is out of range, and can verify the reading to avoid errors.

[0012] In the above-mentioned scoliosis cobb angle measuring instrument, first arc-shaped reinforcement parts are provided between the two sides of the upper pointer and the two sides of the lower pointer and the cover plate. The first arc-shaped reinforcement parts can strengthen the structural strength of the connection between the pointer and the cover plate.

[0013] In the above-mentioned scoliosis cobb angle measuring instrument, an outer pointer is provided on the outer end of the upper vertical body, the central axis of the outer pointer is on the same straight line as the central axis of the upper vertical body, and a second arc-shaped reinforcement part is provided between both sides of the outer pointer and the upper vertical body. The second arc-shaped reinforcement part can strengthen the structural strength of the connection between the pointer and the upper vertical body.

[0014] In the above-mentioned scoliosis cobb angle measuring instrument, the scale plate is provided with a first angle measuring scale and a second angle measuring scale symmetrically arranged along the central axis of the lower vertical body, and the range of the first angle measuring scale and the second angle measuring scale are both 0-180 degrees. The angle measuring scales designed with symmetry on both sides can make the measuring instrument adaptable to patients with different scoliosis directions.

[0015] In the above-mentioned scoliosis cobb angle measuring instrument, the upper vertebra reference scale body includes an upper horizontal body, an upper vertical body is arranged in the middle of the upper horizontal body, and the upper edge of the upper horizontal body is perpendicular to the central axis of the upper vertical body; the lower vertebra reference scale body includes a lower horizontal body, a lower vertical body is arranged in the middle of the lower horizontal body, and the lower edge of the lower horizontal body is perpendicular to the central axis of the lower vertical body. The upper horizontal body and the upper vertical body, as well as the lower horizontal body and the lower vertical body are arranged perpendicular to each other, and the fixed vertical structure replaces the manual drawing of the vertical line of the spine, which has the effect of improving the measurement accuracy and simplifying the measurement steps.

[0016] In the above-mentioned scoliosis cobb angle measuring instrument, a third arc-shaped reinforcement part is provided between the upper vertical body and the upper horizontal body on both sides, and / or a fourth arc-shaped reinforcement part is provided between the lower vertical body and the lower horizontal body on both sides. The third and fourth arc-shaped reinforcement parts can strengthen the structural strength of the connection between the upper horizontal body and the upper vertical body and the lower horizontal body and the lower vertical body.

[0017] Compared with the existing technology, the advantages of this scoliosis cobb angle measuring instrument are: 1. The accurate cobb angle can be directly obtained through the dial, without calculation and the reading is intuitive. 2. The design of the slide and multiple pointers makes the measurement range larger and can adapt to patients with different physical conditions. 3. The structure is simple, the operation is simple and easy to use. 4. The reasonable structural design ensures that the reading will not be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure provided by the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the upper vertebral reference ruler provided by the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the lower end vertebra reference ruler provided by the utility model.

[0021] Figure 4It is a schematic cross-sectional view of the lower end vertebral reference ruler provided by the utility model.

[0022] Figure 5 It is a schematic diagram of the pointer type cover structure provided by the utility model.

[0023] Figure 6 This is a schematic diagram of cobb angle measurement provided by the utility model.

[0024] Figure 7 The utility model provides a dial reading schematic diagram.

[0025] In the figure, the upper end vertebral reference ruler body 1, the upper vertical body 11, the upper horizontal body 12, the upper edge 121, the main slide 13, the outer pointer 14, the second arc-shaped reinforcement part 15, the third arc-shaped reinforcement part 16, the lower end vertebral reference ruler body 2, the lower vertical body 21, the lower horizontal body 22, the lower edge 221, the dial 23, the first angle scale 231, the second angle scale 232, the rotating seat 24, the shaft blind hole 241, the axial anti-slip block movable annular groove 242, the insertion groove 243, the pointer type cover 3, the shaft 31, the axial anti-slip block 311, the cover plate 32, the upper pointer 33, the lower pointer 34, the first arc-shaped reinforcement part 35, the follower structure 4, the follower slide 41, and the follower slider 42. DETAILED DESCRIPTION

[0026] like Figure 1-7 As shown, the present scoliosis Cobb angle measuring instrument comprises a T-shaped upper vertebral reference ruler body 1 and a lower vertebral reference ruler body 2, a dial 23 is provided on the outer end of the lower vertical body 21 of the lower vertebral reference ruler body 2, a main slide groove 13 arranged along the central axis direction is opened on the upper vertical body 11 of the upper vertebral reference ruler body 1, a rotating seat 24 is provided at the center of the dial 23, and the rotating seat 24 is inserted in the main slide groove 13 and can slide along the central axis direction of the upper vertical body 11, a pointer-type cover 3 is provided on the outer end of the rotating seat 24, which is connected with the rotating seat 24 for rotation and can prevent the upper vertical body 11 from separating from the rotating seat 24, and a follower structure 4 is provided between the pointer-type cover 3 and the upper vertical body 11, which can synchronously drive the upper vertebral reference ruler body 1 to rotate when the pointer-type cover 3 rotates.

[0027] More specifically, the follower structure 4 includes follower slides 41 arranged on both sides of the main slide 13, and a follower slider 42 is provided in the follower slide 41. The follower slider 42 is fixedly connected to the pointer type cover 3, and the pointer type cover 3 is hingedly connected to the rotating seat 24.

[0028] Preferably, a rotating shaft 31 is provided at the center of the pointer-type cover 3, one end of the rotating shaft 31 is fixedly connected to the pointer-type cover 3, and the other end of the rotating shaft 31 is inserted into the rotating shaft blind hole 241 of the rotating seat 24, and two axially distributed axial anti-slip blocks 311 are provided on the other end of the rotating shaft 31, and an axial anti-slip block movable annular groove 242 is provided at the inner end of the rotating shaft blind hole 241, and an insertion groove 243 is provided on the side of the rotating shaft blind hole 241, which can make the axial anti-slip block movable annular groove 242 axially connected with the outside, and the insertion groove 243 corresponds to the axial anti-slip blocks 311 one by one.

[0029] The pointer-type cover 3 includes a cover plate 32, on which an upper pointer 33 and a lower pointer 34 are provided, and the central axes of the upper pointer 33 and the lower pointer 34 are located on the same straight line as the central axis of the upper vertical body 11; first arc-shaped reinforcement portions 35 are provided between the two sides of the upper pointer 33 and the two sides of the lower pointer 34 and the cover plate 32; an outer pointer 14 is provided on the outer end of the upper vertical body 11, and the central axis of the outer pointer 14 is located on the same straight line as the central axis of the upper vertical body 11, and second arc-shaped reinforcement portions 15 are provided between the two sides of the outer pointer 14 and the upper vertical body 11.

[0030] The dial plate 23 is provided with a first angle scale 231 and a second angle scale 232 symmetrically arranged along the central axis of the lower vertical body 21 , and the range of the first angle scale 231 and the second angle scale 232 are both 0 to 180 degrees.

[0031] The upper vertebra reference ruler body 1 includes an upper transverse body 12, an upper vertical body 11 is provided in the middle of the upper transverse body 12, and an upper edge 121 of the upper transverse body 12 is perpendicular to the central axis of the upper vertical body 11; the lower vertebra reference ruler body 2 includes a lower transverse body 22, a lower vertical body 21 is provided in the middle of the lower transverse body 22, and a lower edge 221 of the lower transverse body 22 is perpendicular to the central axis of the lower vertical body 21; a third arc-shaped reinforcement portion 16 is provided between the two sides of the upper vertical body 11 and the upper transverse body 12, and a fourth arc-shaped reinforcement portion is provided between the two sides of the lower vertical body 21 and the lower transverse body 22.

[0032] The working principle of this embodiment is as follows: when in use, first align the lower edge 221 of the lower vertebral reference ruler 2 with the lower edge of the lower vertebral cone in the X-ray film; then the upper vertebral reference ruler 1 is translated along the main slide 13 and rotated around the rotating seat 24. During the rotation, the follower slide 41 drives the follower slider 42 through the follower structure 4, thereby driving the pointer cover 3 to rotate synchronously. Then adjust the upper vertebral reference ruler 1 so that its upper edge 121 is aligned with the upper edge of the upper vertebral cone in the X-ray film, and the outer pointer 14 points to the dial 23 to determine the cobb angle. If the outer pointer 14 is not within the range of the dial 23 after the upper vertebral reference ruler 1 is translated, the cobb angle is determined by the lower pointer 34. In addition, the cobb angle is verified by the upper pointer 33 (180° minus the reading indicated by the upper pointer 31 is the cobb angle) to prevent reading errors caused by pointer deformation.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although the terms such as upper end vertebral reference ruler, upper vertical body, upper horizontal body, upper edge, main slide, outer pointer, second arc-shaped reinforcement part, third arc-shaped reinforcement part, lower end vertebral reference ruler, lower vertical body, lower horizontal body, lower edge, dial, first angle scale, second angle scale, rotating seat, shaft blind hole, axial anti-slip block movable annular groove, insertion groove, fourth arc-shaped reinforcement part, pointer cover, shaft, axial anti-slip block, cover plate, upper pointer, lower pointer, first arc-shaped reinforcement part, follower structure, follower slide, follower slider and the like are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A scoliosis cobb angle measuring instrument, characterized in that: The invention comprises a T-shaped upper vertebral reference ruler body (1) and a lower vertebral reference ruler body (2), wherein a dial (23) is provided on the outer end of a lower vertical body (21) of the lower vertebral reference ruler body (2), and an upper vertical body (11) of the upper vertebral reference ruler body (1) is provided with a main slide groove (13) arranged along the central axis direction thereof, a rotating seat (24) is provided at the center of the dial (23), and the rotating seat (24) is inserted into the main slide groove (13) and can slide along the central axis direction of the upper vertical body (11), a pointer-type cover (3) is provided on the outer end of the rotating seat (24) and is connected to the rotating seat (24) for rotation and can prevent the upper vertical body (11) from separating from the rotating seat (24), and a follower structure (4) is provided between the pointer-type cover (3) and the upper vertical body (11) and can synchronously drive the upper vertebral reference ruler body (1) to rotate when the pointer-type cover (3) rotates.

2. The scoliosis cobb angle measuring instrument according to claim 1, characterized in that: The follower structure (4) comprises a follower slide groove (41) arranged on one side or both sides of the main slide groove (13), a follower slider (42) is arranged in the follower slide groove (41), and the follower slider (42) is fixedly connected to the pointer-type cover (3).

3. The scoliosis cobb angle measuring instrument according to claim 2, characterized in that: The pointer-type cover (3) is hingedly connected to the rotating seat (24).

4. The scoliosis cobb angle measuring instrument according to claim 1, 2 or 3, characterized in that: A rotating shaft (31) is provided at the center of the pointer-type cover (3), one end of the rotating shaft (31) is fixedly connected to the pointer-type cover (3), the other end of the rotating shaft (31) is inserted into a rotating shaft blind hole (241) of a rotating seat (24), at least one axial anti-slipping block (311) distributed along the axial direction is provided on the other end of the rotating shaft (31), an axial anti-slipping block movable annular groove (242) is provided at the inner end of the rotating shaft blind hole (241), an insertion groove (243) is provided on the side of the rotating shaft blind hole (241) so that the axial anti-slipping block movable annular groove (242) can be axially connected to the outside, and the insertion groove (243) corresponds to the axial anti-slipping block (311) one by one.

5. The scoliosis cobb angle measuring instrument according to claim 1, 2 or 3, characterized in that: The pointer-type cover (3) comprises a cover plate (32), on which an upper pointer (33) and a lower pointer (34) are provided, and the central axis of the upper pointer (33) and the lower pointer (34) are located on the same straight line as the central axis of the upper vertical body (11).

6. The scoliosis cobb angle measuring instrument according to claim 5, characterized in that: First arc-shaped reinforcement portions (35) are provided between the two sides of the upper pointer (33) and the two sides of the lower pointer (34) and the cover plate (32).

7. The scoliosis cobb angle measuring instrument according to claim 6, characterized in that: An outer pointer (14) is provided on the outer end of the upper vertical body (11), the central axis of the outer pointer (14) and the central axis of the upper vertical body (11) are located on the same straight line, and a second arc-shaped reinforcement portion (15) is provided between both sides of the outer pointer (14) and the upper vertical body (11).

8. The scoliosis cobb angle measuring instrument according to claim 1, 2 or 3, characterized in that: The scale plate (23) is provided with a first angle measuring scale (231) and a second angle measuring scale (232) which are symmetrically arranged along the central axis of the lower vertical body (21), and the range of the first angle measuring scale (231) and the second angle measuring scale (232) are both 0 to 180 degrees.

9. The scoliosis cobb angle measuring instrument according to claim 1, 2 or 3, characterized in that: The upper vertebra reference ruler body (1) comprises an upper transverse body (12), an upper vertical body (11) is disposed in the middle of the upper transverse body (12), and an upper edge (121) of the upper transverse body (12) is perpendicular to the central axis of the upper vertical body (11); the lower vertebra reference ruler body (2) comprises a lower transverse body (22), a lower vertical body (21) is disposed in the middle of the lower transverse body (22), and a lower edge (221) of the lower transverse body (22) is perpendicular to the central axis of the lower vertical body (21).

10. The scoliosis cobb angle measuring instrument according to claim 9, characterized in that: A third arc-shaped reinforcement portion (16) is provided between the two sides of the upper vertical body (11) and the upper horizontal body (12).

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