Scoliosis measuring device and working method thereof

Abstract

The present invention relates to a scoliosis measurement device and a working method thereof, wherein the device comprises a roller for rotating along a spine to be measured; an encoder for measuring the number of rotations of the roller; a gyroscope for measuring the angular velocity value of the current position of the spine to be measured; and a controller for calculating the current position of the spine according to the number of rotations, and calculating the relative angle of the current position of the spine to be measured according to the angular velocity value and obtaining the total rotation angle according to the relative angle. The device provided by the present invention is used to compare and analyze the improvement of scoliosis of patients after clinical and rehabilitation treatment. The device provided by the present application can accurately measure the curvature of the spine, and then reproduce the current shape of the spine through a server and a terminal to provide a basis for treatment. In addition, the device provided by the present application has the beneficial effects of being portable, simple and highly accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of health detection, and in particular relates to a scoliosis measuring device and a working method thereof. Background Art

[0002] Scoliosis is a three-dimensional deformity of the spine, including abnormal spinal sequence in the coronal, sagittal and axial planes. The normal human spine has four curvatures in the anterior-posterior direction, namely, the cervical segment is slightly convex, the thoracic segment is slightly convex, the lumbar segment is obviously convex, and the sacral segment is obviously convex. It looks like an "S" shape from the side, and it should be a straight line from the back and symmetrical on both sides of the trunk. The main manifestation of scoliosis is kyphosis or lordosis and a straight back when viewed from the side, and the spine bends to one side in an arc or "S" shape when viewed from the back. This is mainly caused by the lack of normal physiological curvature of the patient's spine.

[0003] Spinal curvature is a common spinal deformity, which can be divided into four types according to the cause: congenital, pathological, idiopathic and postural. Postural spinal curvature abnormalities are more common in adolescents, usually caused by long-term incorrect posture of the body in learning and daily life. The incidence of scoliosis is as high as 3%-5%. The younger the age of onset, the faster the disease may develop. The disease progresses faster in patients with double-curved scoliosis than in patients with single-curved scoliosis. The greater the degree of spinal curvature, the faster the disease progresses. Mild scoliosis usually does not cause obvious discomfort, and there is no obvious physical deformity in appearance. Severe scoliosis will affect the growth and development of infants and adolescents, deform the body and chest, reduce the volume of the chest, affect cardiopulmonary function, and even involve the spinal cord to cause paralysis. The harm of scoliosis to the human body directly leads to a decline in the quality of life of patients, causing some long-term employment and marriage problems, and even some patients have distorted personalities and are prone to extremes, bringing huge burdens and potential harm to families and society.

[0004] Scoliosis is extremely harmful to teenagers. The key to scoliosis treatment is early detection and early treatment. For most patients with mild scoliosis, they can achieve good recovery results through early screening of scoliosis, adjusting their posture or receiving rehabilitation treatment. For a small number of patients with severe symptoms, they can also be effectively treated through surgery and brace installation.

[0005] In related technologies, the detection of scoliosis is usually divided into two stages: initial screening and reexamination:

[0006] Initial screening: Usually it is checked by visual observation (and hand touch) combined with measuring tools. Commonly used tools are traditional ATR (scoliosis measuring ruler) and MT (Moire photography). Positive results are confirmed by initial screening.

[0007] Retest stage: After the initial screening test is confirmed to be positive, an X-ray of the entire spine is required. The final diagnosis is made through measurement and evaluation of the whole body X-ray image, and the type and degree of scoliosis are determined at the same time;

[0008] There are many defects in the current scoliosis measurement methods, including the following main problems:

[0009] The error range of testing by human eyes (and touch) during the initial screening process is relatively large;

[0010] Commonly used measurement tools require strong professionalism and are cumbersome to operate, and the workload of complete measurement is huge;

[0011] X-ray examination can accurately diagnose the disease, but it is time-consuming (it takes several hours to get the final result after one examination), and the cost of manpower, funds and equipment is high. At the same time, for adolescent patients who are still in the developmental stage, most parents have concerns about the radiation generated by X-rays.

[0012] Adolescent patients with scoliosis within 20 degrees need to undergo regular (about three months) testing and observation of changes in the degree of scoliosis to determine whether a brace or surgical treatment is needed. Frequent X-ray examinations are not advisable. Summary of the invention

[0013] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a scoliosis measurement device and a working method thereof to solve the problem that the scoliosis measurement device in the prior art has many defects.

[0014] To achieve the above objectives, the present invention adopts the following technical solution: a scoliosis measurement device, comprising:

[0015] A roller for rotating along the spine to be tested;

[0016] An encoder, used to measure the number of rotations of the roller;

[0017] A gyroscope, used to measure the angular velocity value of the current position of the spine to be measured;

[0018] The controller is used to calculate the current position of the spine according to the number of rotations, and to calculate the relative angle of the current position of the spine to be measured according to the angular velocity value and to obtain the total rotation angle according to the relative angle.

[0019] Furthermore, the measuring of the angular velocity value of the current position of the spine to be measured includes:

[0020] A first bending angle of the spine to be measured is obtained, a second bending angle of the spine to be measured is obtained according to the bending angle and a preset offset value, and an angular velocity value of a current position of the spine to be measured is calculated according to the second bending angle.

[0021] Furthermore, the current position of the spine is calculated according to the number of rotations in the following manner:

[0022] Measure the position of the spine = circumference of the roller * number of turns.

[0023] Further, calculating the relative angle of the current position of the spine to be measured according to the angular velocity value includes:

[0024] Obtaining the time interval between two adjacent measurements of the gyroscope; the time interval is the difference between the timestamp of current data acquisition and the timestamp of last data acquisition;

[0025] A relative angle is obtained according to the angular velocity value and the time interval.

[0026] Further, the relative angle is obtained according to the angular velocity value and the time interval in the following manner:

[0027]

[0028] Among them, angular velocity (i) and timestamp (i) respectively represent the output value of a certain axis of the gyroscope collected by the system for the i-th time in a data collection event and the timestamp of the i-th collection marked by the system, j represents the number of collections corresponding to a rotation angle event, and j is greater than or equal to 1, timestamp (i-1) represents the timestamp of sampling for starting a rotation angle, and timestamp (i)-timestamp (i-1) is the time interval between the last sampling and this sampling.

[0029] Further, obtaining the total rotation angle according to the relative angle includes:

[0030] The total rotation angle is obtained according to the rotation angle of the previous position and the relative angle.

[0031] Furthermore, before the gyroscope starts measuring, it also includes:

[0032] The gyroscope is calibrated to determine the sensitivity of the gyroscope chip.

[0033] Furthermore, it also includes:

[0034] An indicator light, used to indicate the working status of the device;

[0035] The indicator light is connected to the controller.

[0036] Furthermore, it also includes:

[0037] A power supply, used to provide electrical energy to the device;

[0038] A start button, used to receive a control instruction, wherein the control instruction is used to put the device into a working state;

[0039] An end button, used to receive a control instruction, wherein the control instruction is used to terminate the working state of the device;

[0040] The transmission button is used to transmit the measured position of the spine to be measured and the total rotation angle corresponding to the position to the server, so as to obtain a spine diagram drawn by the server according to the position and the total rotation angle corresponding to the position through a preset 3D spine model.

[0041] The present application embodiment provides a working method of a scoliosis measurement device, including:

[0042] After the spine to be tested is fixed, the roller rotates along the spine to be tested;

[0043] measuring the number of rotations of the roller;

[0044] Measuring the angular velocity value of the current position of the spine to be measured;

[0045] The current position of the spine is calculated according to the number of rotations, and the relative angle of the current position of the spine to be measured is calculated according to the angular velocity value, and the total rotation angle is obtained according to the relative angle.

[0046] Beneficial effects that can be achieved include:

[0047] The present invention provides a scoliosis measurement device and a working method thereof, the device is used to compare and analyze the improvement of scoliosis of patients after clinical and rehabilitation treatment. The device provided by the present application can accurately measure the curvature of the spine, and then reproduce the current spine shape through a server and a terminal to provide a basis for treatment. In addition, the device provided by the present application has the beneficial effects of being portable, simple and highly accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 The schematic diagram of the structure of the scoliosis measuring device of the present invention is

[0050] Figure 2 Another structural schematic diagram of the scoliosis measuring device of the present invention;

[0051] Figure 3 This is a schematic diagram of the application of the scoliosis measurement device of the present invention;

[0052] Figure 4 It is a schematic diagram of the steps of the scoliosis measuring device of the present invention. DETAILED DESCRIPTION

[0053] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0054] A specific scoliosis measurement device and its working method provided in the embodiments of the present application are introduced below in conjunction with the accompanying drawings.

[0055] like Figure 1 As shown, the scoliosis measurement device provided in the embodiment of the present application includes:

[0056] A roller (not shown in the figure) for rotating along the spine to be tested;

[0057] An encoder 11, used to measure the number of rotations of the roller;

[0058] A gyroscope 12, used to measure the angular velocity value of the current position of the spine to be measured;

[0059] The controller 13 is used to calculate the current position of the spine according to the number of rotations, and to calculate the relative angle of the current position of the spine to be measured according to the angular velocity value and to obtain the total rotation angle according to the relative angle.

[0060] The encoder 11 and the gyroscope 12 are connected to the controller 13 respectively.

[0061] The working principle of the scoliosis measurement device is: Figure 2 , the human body stands in front of the scoliosis measurement device, the human spine is Figure 3 As shown, the operation process of the device is that the roller can be manually controlled to slide along the spine from top to bottom, and the encoder 11 is used to measure the length, that is, the current position of the spine, and the gyroscope 12 is used to measure the angle corresponding to the current position of the spine. At the same time, the starting point is taken as the angle of 0 degrees. Along the measurement direction, the information and changes of the length and angle are recorded at the same time, so that an accurate spine shape map can be obtained.

[0062] In some embodiments, the measuring the angular velocity value of the current position of the spine to be measured includes:

[0063] A first bending angle of the spine to be measured is obtained, a second bending angle of the spine to be measured is obtained according to the bending angle and a preset offset value, and an angular velocity value of a current position of the spine to be measured is calculated according to the second bending angle.

[0064] Preferably, before the gyroscope 12 starts measuring, the method further includes:

[0065] The gyroscope 12 is calibrated to determine the sensitivity of the gyroscope 12 chip.

[0066] Specifically, in this device, the Z axis of the gyroscope 12 is used to calculate the angle, wherein the gyroscope 12 chip is perpendicular to the dual wheels of the device, and the measurement starting point is first taken as the angle 0 degrees. The specific method for calculating the angle measured by the gyroscope 12 is as follows:

[0067] Step 1: Place the scoliosis measurement device in a stationary position, and first calibrate the gyroscope 12. The calibration method is as follows: obtain the Z-axis data Gz (LSB) of the gyroscope 12 when it is stationary. The Gz (LSB) obtained when it is stationary is called the static offset value of the Z-axis of the gyroscope 12. It should be noted that all subsequent operations need to subtract this offset value to achieve the best and most accurate calculation result. It is understandable that this offset value can also be saved when the product leaves the factory for use each time it is turned on in the future. In addition, the calculation of this offset value can also obtain multiple sets of stationary data and take the average value to calculate it, so that the calculated result is more accurate.

[0068] Step 2: Calculate the value after the offset value. In step 1, the offset value of the gyroscope 12Z axis is Gz (LSB). In all subsequent calculation steps, the original data obtained must be subtracted from these offset values ​​to ensure the accuracy of the calculation results. Assume that the result obtained in step 2 is GyroZ (LSB). Then it is as follows:

[0069] GyroZ=currently acquired gyroscope 12Z-axis output value-Gz.

[0070] Step 3: Calculate the angle of the gyroscope 12Z axis. First, you need to convert the data calculated in step 2 into / s. At this time, you need to determine the sensitivity of the current chip, which is generally configured in the driver in units of LSB / / s. Assume that the converted Z-axis data is GyroscopeZ.

[0071] Then: GyroscopeZ( / s)=GyroZ(LSB) / Sensitivity(LSB / / s)

[0072] It should be noted that GyroscopeZ is usually referred to as the angular velocity value of the Z axis of the gyroscope 12 .

[0073] In some embodiments, calculating the relative angle of the current position of the spine to be measured according to the angular velocity value includes:

[0074] Obtaining the time interval between two adjacent measurements of the gyroscope 12; the time interval is the difference between the timestamp of current data acquisition and the timestamp of last data acquisition;

[0075] A relative angle is obtained according to the angular velocity value and the time interval.

[0076] Specifically, after the angular velocity is obtained, the angle corresponding to the current angular velocity is calculated as follows:

[0077] The interval time between two gyroscope 12 data acquisitions (s) = the timestamp of current data acquisition (s) - the timestamp of last data acquisition (s);

[0078] Relative angle (°) = GyroscopeZ ( / s) * interval time between two gyroscope 12 data acquisitions (s);

[0079] Total rotation angle = last rotation angle + relative angle;

[0080] It can be understood that the above process is actually the process of integrating the angular velocity. The current relative angle is obtained by adding the results of each integration. The result can be obtained by adding the current relative angle to the previous rotation angle.

[0081] The specific formula and description are as follows:

[0082]

[0083] Among them, angular velocity (i) and timestamp (i) respectively represent the output value of a certain axis of the gyroscope 12 collected by the system for the i-th time in a data collection event and the timestamp of the i-th collection marked by the system, j represents the number of collections corresponding to a rotation angle event, and j is greater than or equal to 1, and timestamp (i-1) represents the timestamp of the last sampling that is used as the sampling to start a rotation event. Therefore, timestamp (i)-timestamp (i-1) is to obtain the time interval between the last sampling and this sampling. Through the above, the total rotation angle, that is, the current rotation angle value, can be calculated.

[0084] In some embodiments, the current position of the spine is calculated according to the number of rotations in the following manner:

[0085] Measure the position of the spine = circumference of the roller * number of turns.

[0086] Specifically, the roller at the bottom of the device provided by the present application, wherein the roller is a double wheel connected to an encoder 11, can accurately measure the number of turns of the roller, and thereby calculate the measured length of the spine. The specific calculation method is as follows:

[0087] Circumference of roller * number of turns = measured length of spine.

[0088] In some embodiments, the scoliosis measurement device provided by the present application further includes:

[0089] Indicator light 14, used to indicate the working status of the device;

[0090] The indicator light 14 is connected to the controller 13 .

[0091] Specifically, when the device starts working, the indicator light 14 displays green, and enters the working state. When the device finishes working, the indicator light 14 goes out, indicating that the device has stopped working.

[0092] In some embodiments, it also includes:

[0093] A power supply (not shown in the figure), used to provide electrical energy to the device;

[0094] A start button 15 is used to receive a control instruction, wherein the control instruction is used to put the device into working state;

[0095] The end button 16 is used to receive a control instruction, and the control instruction is used to terminate the working state of the device;

[0096] The transmission button 17 is used to transmit the measured position of the spine to be measured and the total rotation angle corresponding to the position to the server, so as to obtain a spine diagram drawn by the server according to the position and the total rotation angle corresponding to the position through a preset 3D spine model.

[0097] As a specific implementation, the working process of the scoliosis measurement device provided by the present application is: after the human body and the device are in good fit, first turn on the switch button, wait for the indicator light 14 to turn green, enter the inspection working state, place the device at the top of the cervical spine, and the double wheels at the bottom of the device are close to the first section of the cervical spine. After clicking the "Start" button, slide the device down along the spine, keep the double wheels close to the spine, slide the device to the last section of the lumbar vertebra, click the "End Button 16" to complete the measurement; click the "Transfer Button 17" to upload the device data to the computer, and the computer restores the measurement data by displaying the 3D spine model.

[0098] In some embodiments, such as Figure 4 As shown, the embodiment of the present application provides a working method of a scoliosis measurement device, including:

[0099] S101, after fixing the spine to be tested, the roller rotates along the spine to be tested;

[0100] S102, measuring the number of rotations of the roller;

[0101] S103, measuring the angular velocity value of the current position of the spine to be measured;

[0102] S104, calculating the current position of the spine according to the number of rotations, and calculating the relative angle of the current position of the spine to be measured according to the angular velocity value, and obtaining a total rotation angle according to the relative angle.

[0103] Furthermore, the measuring of the angular velocity value of the current position of the spine to be measured includes:

[0104] A first bending angle of the spine to be measured is obtained, a second bending angle of the spine to be measured is obtained according to the bending angle and a preset offset value, and an angular velocity value of a current position of the spine to be measured is calculated according to the second bending angle.

[0105] Further, calculating the relative angle of the current position of the spine to be measured according to the angular velocity value includes:

[0106] Obtaining the time interval between two adjacent measurements of the gyroscope 12; the time interval is the difference between the timestamp of current data acquisition and the timestamp of last data acquisition;

[0107] A relative angle is obtained according to the angular velocity value and the time interval.

[0108] Preferably, the relative angle is obtained according to the angular velocity value and the time interval in the following manner:

[0109]

[0110] Among them, angular velocity (i) and timestamp (i) respectively represent the output value of a certain axis of the gyroscope 12 collected by the system for the i-th time in a data collection event and the timestamp of the i-th collection marked by the system, j represents the number of collections corresponding to a rotation angle event, and j is greater than or equal to 1, timestamp (i-1) represents the timestamp of sampling for starting a rotation angle, and timestamp (i)-timestamp (i-1) is the time interval between the last sampling and this sampling.

[0111] In summary, the present invention provides a scoliosis measurement device and a working method thereof, wherein the device includes a roller for rotating along the spine to be measured; an encoder for measuring the number of rotations of the roller; a gyroscope for measuring the angular velocity value of the current position of the spine to be measured; and a controller for calculating the current position of the spine according to the number of rotations, and calculating the relative angle of the current position of the spine to be measured according to the angular velocity value and obtaining the total rotation angle according to the relative angle. The device provided by the present invention is used to compare and analyze the improvement of scoliosis of patients after clinical and rehabilitation treatment. The device provided by the present application can accurately measure the curvature of the spine, and then reproduce the current shape of the spine through a server and a terminal to provide a basis for treatment. In addition, the device provided by the present application has the beneficial effects of being portable, simple and highly accurate.

[0112] It can be understood that the device embodiment provided above corresponds to the device embodiment described above, and the corresponding specific contents can be referenced to each other and will not be repeated here.

[0113] Those skilled in the art will appreciate that the embodiments of the present application may be provided as equipment, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0114] The present application is described with reference to the flowcharts and / or block diagrams of the devices, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0115] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0116] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0117] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A scoliosis measuring device, characterized in that: include: A roller, used to rotate along the spine to be tested; An encoder, used to measure the number of rotations of the roller; A gyroscope, used to measure the angular velocity value of the current position of the spine to be measured; A controller, configured to calculate the current position of the spine according to the number of rotations, and to calculate the relative angle of the current position of the spine to be measured according to the angular velocity value and to obtain a total rotation angle according to the relative angle; Wherein, calculating the relative angle of the current position of the spine to be measured according to the angular velocity value includes: Obtaining the time interval between two adjacent measurements of the gyroscope; the time interval being the difference between the timestamp of current data acquisition and the timestamp of last data acquisition; obtaining the relative angle according to the angular velocity value and the time interval; The relative angle is obtained according to the angular velocity value and the time interval in the following manner: Wherein, angular velocity (i) and timestamp (i) respectively represent the output value of a certain axis of the gyroscope collected by the system for the i-th time in a data collection event and the timestamp of the i-th collection identified by the system, j represents the number of collections corresponding to a rotation angle event, and j is greater than or equal to 1, timestamp (i-1) represents the timestamp of the last sampling used as the start of a rotation angle, and timestamp (i)-timestamp (i-1) is the time interval between the last sampling and the current sampling; Wherein, the step of measuring the angular velocity value of the current position of the spine to be measured includes: A first bending angle of the spine to be measured is obtained, a second bending angle of the spine to be measured is obtained according to the bending angle and a preset offset value, and an angular velocity value of a current position of the spine to be measured is calculated according to the second bending angle.

2. The device according to claim 1, characterized in that The current position of the spine is calculated according to the number of rotations in the following manner: Current position of spine = circumference of roller * number of turns.

3. The device according to claim 1, characterized in that Before the gyroscope starts measuring, it also includes: The gyroscope is calibrated to determine the sensitivity of the chip of the gyroscope.

4. The device according to claim 1, characterized in that Also includes: An indicator light, used to indicate the working status of the device; The indicator light is connected to the controller.

5. The device according to claim 1, characterized in that Also includes: A power supply, used to provide electrical energy to the device; A start button, used to receive a control instruction to put the device into working state; An end button, used to receive a control instruction that causes the device to end its working state; The transmission button is used to transmit the measured position of the spine to be measured and the total rotation angle corresponding to the position to the server, so as to obtain a spine diagram drawn by the server according to the position and the total rotation angle corresponding to the position through a preset 3D spine model.

6. A working method of a scoliosis measuring device, applied to the scoliosis measuring device according to any one of claims 1 to 5, characterized in that: include: After the spine to be tested is fixed, the roller rotates along the spine to be tested; measuring the number of rotations of the roller; Measuring the angular velocity value of the current position of the spine to be measured; The current position of the spine is calculated according to the number of rotations, and the relative angle of the current position of the spine to be measured is calculated according to the angular velocity value, and the total rotation angle is obtained according to the relative angle.

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