Scoliosis coronal plane radiographic image measuring device

Abstract

The utility model relates to the technical field of medical auxiliary instruments, and discloses a scoliosis coronal plane radiographic image measuring device which comprises a main measuring arm, a folding measuring arm is arranged at one end of the main measuring arm, and auxiliary measuring arms are arranged at the other end of the main measuring arm and one end of the folding measuring arm. The end parts of the two groups of auxiliary measuring arms, the folding measuring arm and the main measuring arm are rotationally connected through rotating shafts, mounting seats are respectively arranged at three rotationally connected positions, and a display panel capable of displaying the included angle between two adjacent groups of measuring arms is arranged on one side of each mounting seat. According to the utility model, the four groups of mutually overlapped measuring arms are utilized to form a Cobb angle measuring structure, the auxiliary measuring arm is adopted to replace an end plate line, and the main measuring arm and the folding measuring arm are adopted to replace a vertical line of the end plate line, so that an end cone included angle needing to be measured is obtained by observing the included angle between the measuring arms in actual use, and scribing and measuring on an X-ray film are not needed; therefore, the working process is simplified, and the measurement accuracy is also improved.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically to a measuring device for coronal radiographic imaging of scoliosis. Background Technology

[0002] Scoliosis is a spinal deformity, and measuring the Cobb angle on spinal X-ray images is an important standard for assessing the severity of the deformity. Current methods for measuring the Cobb angle involve drawing an endplate line on the X-ray image at the upper edge of the upper vertebra and the lower edge of the lower vertebra of the scoliosis, and then drawing a perpendicular line to the endplate line. The angle between the two perpendicular lines is then measured to indirectly measure the angle between the two endplates.

[0003] This method involves many steps, including drawing lines. Furthermore, the accuracy of the standard Cobb measurement method is affected by factors such as the thickness of the pen and the perpendicularity of the drawn line. Therefore, it is time-consuming, labor-intensive, and not accurate enough. Utility Model Content

[0004] The purpose of this invention is to provide a measuring device for coronal radiographic images of scoliosis, so as to solve the technical problems of time-consuming, labor-intensive and inaccurate technology caused by manually drawing lines on X-ray film in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] A measuring device for coronal radiographic imaging of scoliosis includes a main measuring arm, a folding measuring arm at one end of the main measuring arm, and auxiliary measuring arms at the other end of the main measuring arm and one end of the folding measuring arm. The ends of the two sets of auxiliary measuring arms, the folding measuring arm, and the main measuring arm are rotatably connected by a rotating shaft, and mounting seats are provided at three rotatably connected positions. A display panel capable of displaying the included angle between two adjacent sets of measuring arms is provided on one side of the mounting seat.

[0007] The folding measuring arm rotates around its connection with the main measuring arm to form a circumferential structure, and the two sets of auxiliary measuring arms rotate around their connections with the folding measuring arm and the main measuring arm to form circumferential structures, respectively.

[0008] As a preferred embodiment of this utility model, the main measuring arm, the folding measuring arm, and the auxiliary measuring arm are all composed of a fixed end, a movable end, and an extension end. The two ends of the extension end are respectively movably inserted into the interior of the fixed end and the extension end to form a length adjustment structure.

[0009] As a preferred embodiment of this utility model, a magnet is provided at the connection position between the fixed end and the movable end, and a storage groove matching the extension end is opened at one end of both the fixed end and the movable end. One end of the fixed end is movably abutted against one end of the movable end by the magnet, and the extension end is enclosed inside to form a storage structure.

[0010] In a preferred embodiment of this utility model, an angle sensor is provided inside the mounting base, the angle sensor is coaxially arranged with the rotating shaft, the mounting base is connected to the main measuring arm and the folding measuring arm respectively, and a spring is provided on the mounting base that passes through the rotating shaft.

[0011] As a preferred embodiment of this utility model, the main measuring arm, the folding measuring arm and the two sets of auxiliary measuring arms constitute a Cobb angle measuring structure, and the ends of the four sets of measuring arms are staggered and overlapped in a stepped manner, and scale marks are provided on the surface of the four sets of measuring arms.

[0012] The scale markings on the fixed end and the movable end are the same scale markings, and another set of scale markings with the same units are provided on the extended end.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This invention utilizes four sets of overlapping measuring arms to form a Cobb angle measuring structure. The auxiliary measuring arm replaces the end plate line, and the main measuring arm and folding measuring arm replace the perpendicular line of the end plate line. In actual use, the included angle of the end cone to be measured is obtained by observing the included angle between the measuring arms. There is no need to draw lines and measure on the X-ray film, which simplifies the workflow, greatly speeds up the operation, and improves the measurement accuracy. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall unfolded structure of this utility model;

[0017] Figure 2 This is a top view of the main measuring arm of this utility model.

[0018] Figure 3 This is a side sectional view of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall folding structure of this utility model.

[0020] The labels in the diagram represent the following:

[0021] 10 - Main measuring arm; 20 - Folding measuring arm; 30 - Secondary measuring arm; 40 - Rotary shaft; 50 - Mounting base;

[0022] 11-Fixed end; 12-Moving end; 13-Extension end; 14-Storage slot;

[0023] 51-Display panel; 52-Angle sensor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 and Figure 2 As shown, this utility model provides a measuring device for coronal radiographic imaging of scoliosis, including a main measuring arm 10, a folding measuring arm 20 at one end of the main measuring arm 10, and auxiliary measuring arms 30 at the other end of the main measuring arm 10 and one end of the folding measuring arm 20. The ends of the two sets of auxiliary measuring arms 30, the folding measuring arm 20 and the main measuring arm 10 are rotatably connected by a rotating shaft 40, and a mounting base 50 is provided at each of the three rotatably connected positions. A display panel 51 capable of displaying the included angle between two adjacent sets of measuring arms is provided on one side of the mounting base 50.

[0026] The folding measuring arm 20 rotates around its connection with the main measuring arm 10 to form a circumferential structure, and the two sets of auxiliary measuring arms 30 rotate around their connections with the folding measuring arm 20 and the main measuring arm 10 to form circumferential structures, respectively.

[0027] This invention utilizes four sets of overlapping measuring arms to form a Cobb angle measuring structure. The auxiliary measuring arm replaces the end plate line, and the main measuring arm and folding measuring arm replace the perpendicular line of the end plate line. In actual use, the included angle of the end cone to be measured is obtained by observing the included angle between the measuring arms. There is no need to draw lines and measure on the X-ray film, which simplifies the workflow, greatly speeds up the operation, and improves the measurement accuracy.

[0028] In the Cobb angle measurement process, the key axes are the edges of the upper and lower vertebrae and the perpendicular lines perpendicular to each of them. Once the perpendicular lines of the edges of the upper and lower vertebrae are drawn, the angle between the two perpendicular lines is the angle to be measured.

[0029] Therefore, in this device, the sides of the two sets of auxiliary measuring arms 30 are aligned with the upper and lower sides of the upper and lower vertebrae, respectively, so that the sides of the two sets of auxiliary measuring arms 30 coincide with the upper and lower sides of the upper and lower vertebrae. Then, the main measuring arm 10 and the folding measuring arm 20 are rotated so that they can be rotated to a position perpendicular to the main measuring arm 10 and the folding measuring arm 20, respectively. In this way, the main measuring arm 10 and the folding measuring arm 20 become the perpendicular lines of the two sets of auxiliary measuring arms 30. Therefore, by observing the data on the display panel 51 between the main measuring arm 10 and the folding measuring arm 20, the required Cobb angle can be measured.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the main measuring arm 10, the folding measuring arm 20 and the auxiliary measuring arm 30 are all composed of a fixed end 11, a movable end 12 and an extension end 13. The two ends of the extension end 13 are respectively movably inserted into the interior of the fixed end 11 and the extension end 13 to form a length adjustment structure.

[0031] Depending on the individual patient's spinal condition, there are certain differences. By extending and retracting the main measuring arm 10, the folding measuring arm 20, and the auxiliary measuring arm 30, it is possible to better adapt to the spinal X-ray images of different patients, thereby enabling more accurate measurements. In particular, the length and distance between the main measuring arm 10 and the folding measuring arm 20 are used to determine the vertical line position. Furthermore, the two sets of auxiliary measuring arms 30 can be more closely fitted to the upper edge of the upper vertebrae and the lower vertebrae of the spine, making it convenient to adjust according to patients of different heights and body types, and further improving the accuracy of the measurements.

[0032] like Figure 3 and Figure 4 As shown, a magnet is provided at the connection position between the fixed end 11 and the movable end 12, and a storage groove 14 matching the extension end 13 is provided at one end of both the fixed end 11 and the movable end 12. One end of the fixed end 11 is movably connected to one end of the movable end 12 through the magnet, and the extension end 13 is enclosed inside to form a storage structure.

[0033] The extension end 13 is expanded by stretching the movable end 12, thereby increasing the combined length of the fixed end 11 and the movable end 12. This allows for adjustment according to actual usage needs. Conversely, it can shorten the combined length of the fixed end 11 and the movable end 12, making it easier to adjust and use according to the spinal conditions of different patients.

[0034] Both ends of the extension end 13 are equipped with sliders. The extension end 13 slides in the storage groove 14 via the sliders. The sliders help to limit the sliding range of the extension end 13, making it difficult for the extension end 13 to come out when it slides to the maximum distance. When the extension end 13 is completely stored in the storage groove 14, the fixed end 11 and the movable end 12 are connected and fixed by magnets, making it difficult to fall apart and convenient for storage and carrying.

[0035] In actual manufacturing, the width of the measuring arm should not be too wide. A wider ruler not only makes it difficult to place and pick up, but also increases the contact area with X-ray film or computer screen during use, which may aggravate its wear and tear.

[0036] The entire device can be made of transparent material, is lightweight and small in size, making it more convenient to use and carry.

[0037] like Figure 3 As shown, an angle sensor 52 is provided inside the mounting base 50. The angle sensor 52 is coaxially arranged with the rotating shaft 40. The mounting base 50 is connected to the main measuring arm 10 and the folding measuring arm 20 respectively. A spring is provided on the mounting base 50 that passes through the rotating shaft 40.

[0038] The measuring arms on both sides are connected by a rotating shaft 40, and the resistance of the measuring arms during rotation is increased by a spring, making the measurement more stable. Angle sensor 52 is located at the top of the rotating shaft 40. Angle sensor 52 consists of a moving grid and a fixed grid. When one measuring arm rotates on the rotating shaft 40, it drives the fixed grid to rotate on the side of the moving grid, thereby measuring the included angle within the rotation range, thus measuring the included angle between the two sets of measuring arms. Angle sensor 52 is electrically connected to display panel 51 through a connecting cable. Angle sensor 52 feeds back the measured data to display panel 51 for easy observation by the user.

[0039] like Figure 2 and Figure 4 As shown, the main measuring arm 10, the folding measuring arm 20 and the two sets of auxiliary measuring arms 30 constitute the Cobb angle measuring structure, and the ends of the four sets of measuring arms are staggered and overlapped in a stepped manner, and scale marks are set on the surface of the four sets of measuring arms.

[0040] The scale markings on the fixed end 11 and the movable end 12 are the same scale markings, and another set of scale markings with the same units are provided on the extended end 13.

[0041] By using four sets of measuring arms corresponding to the Cobb angle structure, it is possible to measure the Cobb angle on spinal X-ray images, and further determine the degree of spinal deformity.

[0042] The four sets of measuring arms are interlocked and overlapped, which facilitates folding and storage, thereby shortening the storage length and making it easy to carry. Although the ground of the two sets of auxiliary measuring arms 30 cannot be completely aligned with the X-ray film when unfolded for measurement, it can still be used normally and measurement results can be obtained by observing from the front and aligning the edge line of the suspended measuring arm with the edge line of the end cone in the X-ray film.

[0043] Furthermore, in actual manufacturing, the thickness of the measuring arm can be set to be relatively thin, and the material of the secondary measuring arm 30 can be set to a material with good bending toughness, such as plastic, similar to the manufacturing process of plastic gap feeler gauges in the prior art, so that the secondary measuring arm 30 can be bent downwards, thereby also fitting with the X-ray film on the top surface.

[0044] Measurements are taken using the same set of scale markings on the fixed end 11 and the movable end 12. This makes it easy to obtain data intuitively when using the fixed length. When it is necessary to extend the measurement distance, the measurement data after extending the measurement distance can be quickly calculated by increasing the scale distance on the extended end 13. This makes it convenient for telescopic use and easy to adjust using a simple calculation method.

[0045] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A measuring device for coronal radiographic imaging of scoliosis, characterized in that, It includes a main measuring arm (10), a folding measuring arm (20) is provided at one end of the main measuring arm (10), and a secondary measuring arm (30) is provided at the other end of the main measuring arm (10) and at one end of the folding measuring arm (20). The ends of the two sets of secondary measuring arms (30), the folding measuring arm (20) and the main measuring arm (10) are rotatably connected by a rotating shaft (40), and a mounting base (50) is provided at each of the three rotatably connected positions. A display panel (51) capable of displaying the included angle between two adjacent sets of measuring arms is provided on one side of the mounting base (50). The folding measuring arm (20) rotates around its connection with the main measuring arm (10) to form a circumferential structure, and the two sets of auxiliary measuring arms (30) rotate around their connections with the folding measuring arm (20) and the main measuring arm (10) to form circumferential structures, respectively.

2. The measuring device for coronal radiographic imaging of scoliosis according to claim 1, characterized in that, The main measuring arm (10), the folding measuring arm (20), and the auxiliary measuring arm (30) are all composed of a fixed end (11), a movable end (12), and an extension end (13). The two ends of the extension end (13) are respectively movably inserted into the interior of the fixed end (11) and the extension end (13) to form a length adjustment structure.

3. The measuring device for coronal radiographic imaging of scoliosis according to claim 2, characterized in that, A magnet is provided at the connection position between the fixed end (11) and the movable end (12), and a storage groove (14) matching the extension end (13) is provided at one end of both the fixed end (11) and the movable end (12). One end of the fixed end (11) is movably abutted against one end of the movable end (12) by the magnet, and the extension end (13) is enclosed inside to form a storage structure.

4. The measuring device for coronal radiographic imaging of scoliosis according to claim 1, characterized in that, An angle sensor (52) is provided inside the mounting base (50). The angle sensor (52) is coaxially arranged with the rotating shaft (40). The mounting base (50) is connected to the main measuring arm (10) and the folding measuring arm (20) respectively. A spring is provided on the mounting base (50) and passes through the rotating shaft (40).

5. The measuring device for coronal radiographic imaging of scoliosis according to claim 3, characterized in that, The main measuring arm (10), the folding measuring arm (20) and the two sets of auxiliary measuring arms (30) constitute the Cobb angle measuring structure, and the ends of the four sets of measuring arms are staggered and overlapped in a stepped manner, and scale marks are provided on the surface of the four sets of measuring arms. The scale markings on the fixed end (11) and the movable end (12) are the same scale markings, and another set of scale markings with the same units are provided on the extended end (13).

Images