Sitting posture spine correction measuring system for cerebral palsy patient

Abstract

The invention relates to the technical field of medical instruments, in particular to a cerebral palsy patient sitting posture spine correction measurement system. The data processing module is used for calculating a stress point, a stress direction and a correction force required by correction of the patient; the adjusting module is used for applying force to the corresponding position of the back of the patient according to the force bearing point, the force bearing direction and the magnitude of the correction force, the position with the minimum difference value between the spine bending angle of the patient and the normal spine bending amplitude within the range is selected as the optimal force bearing point, and force is applied to the optimal force bearing point; the angle with the minimum difference value between the spine bending angle of the patient and the normal spine bending amplitude is selected as the optimal force application angle, force is applied to the back of the patient at the optimal force application angle at the optimal force bearing point, and the optimal correction force is selected. And the pain of the patient caused by data errors is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a sitting posture spinal correction measurement system for cerebral palsy patients. Background Art

[0002] Cerebral palsy is a group of persistent central motor and postural development disorders and activity limitation syndromes, which are caused by non-progressive damage to the brain of the developing fetus or infant. This syndrome persists throughout the life of the child. The probability of spinal scoliosis in cerebral palsy patients is relatively high. Epidemiological data shows that the incidence of spinal scoliosis in cerebral palsy children ranges from 21% to 76%. This data indicates that a considerable number of cerebral palsy children are at risk of spinal scoliosis.

[0003] The reasons for spinal scoliosis in cerebral palsy patients can be mainly attributed to the following points: abnormal muscle and bone development: The muscle control ability of cerebral palsy patients is impaired, which may lead to muscle incoordination and abnormal muscle tone. This muscle abnormality will further affect the normal development of bones, resulting in poor joint alignment and uneven stress on the bones, thus causing spinal scoliosis. Incorrect posture: Due to muscle incoordination, cerebral palsy patients may not be able to maintain a correct posture. Maintaining an incorrect posture for a long time will increase the risk of spinal scoliosis. Nervous system problems: There may be problems with the nervous system of cerebral palsy patients, such as abnormal nerve conduction or imbalance of nerve regulation. These problems may directly affect the normal development and function of the spine, resulting in the occurrence of spinal scoliosis.

[0004] If spinal scoliosis is not treated in time, it may gradually worsen, affecting the body balance and beauty, and even causing compression on internal organs and affecting overall health. Through correction, the further deterioration of the condition can be effectively prevented. It may cause symptoms such as pain and discomfort in patients, and these symptoms can be improved through correction, improving the quality of life of patients. It may cause symptoms such as pain and discomfort in patients, and these symptoms can be improved through correction, improving the quality of life of patients.

[0005] Currently, the measurement methods for spinal scoliosis in cerebral palsy patients mostly rely on manual operations, such as evaluating through X-ray films combined with the Cobb angle measurement method. However, this method has many limitations: First, manual measurement is greatly affected by subjective factors and it is difficult to guarantee the accuracy; Second, the measurement process is complex and inefficient, and it is difficult to achieve real-time monitoring of spinal changes. And most of the existing designs of sitting posture spinal correction aids rely on the experience of medical workers and lack quantitative biomechanical analysis. Therefore, there is an urgent need for an automated and high-precision spinal correction measurement system to achieve real-time monitoring and accurate evaluation of the spinal correction process for cerebral palsy patients. Summary of the Invention

[0006] To solve the above problems, the present invention provides a sitting posture spinal correction measurement system for cerebral palsy patients, which can monitor the spinal state in real time and improve the measurement accuracy and efficiency.

[0007] To achieve the above object, the technical solution of the present invention is as follows: A sitting posture spinal correction measurement system for cerebral palsy patients, comprising: An acquisition module, which is used to acquire the position information of several points on the patient's back; A data processing module, which is used to connect adjacent points in pairs according to the position information to form several smooth and intersecting back curves, construct a biomechanical model using the back curves, obtain the spinal curvature angle of the patient according to the biomechanical model, and calculate the force application points, force application directions and magnitudes of the correction forces required for the patient's correction; An adjustment module, which is used to apply forces to the corresponding positions on the patient's back according to the force application points, force application directions and magnitudes of the correction forces, apply forces in sequence within a set range centered on the corresponding position of the force application point on the patient's back, select the position with the smallest difference between the spinal curvature angle of the patient and the normal spinal curvature amplitude within this range as the optimal force application point, apply force at the optimal force application point, adjust the force application angle centered on the force application direction, select the angle with the smallest difference between the spinal curvature angle of the patient and the normal spinal curvature amplitude among them as the optimal force application angle, calculate the maximum correction force that the patient can withstand according to the magnitude of the correction force, apply force to the patient's back at the optimal force application point with the optimal force application angle, and the force changes from small to large and the maximum value does not exceed the maximum correction force, and select the force with the smallest difference between the spinal curvature angle of the patient and the normal spinal curvature amplitude as the optimal correction force; An output module, which is used to output the optimal force application point, the optimal force application angle and the optimal correction force to the user.

[0008] Further, the acquisition module includes a test chair, on which test strips are symmetrically arranged. The test strips and the test chair are both used to fix the patient's body position. The test strips are hinged to the side walls of the test chair. The materials of the test strips and the test chair are both magnetic isolation materials, and the test strips are made of elastic materials. Limit components are provided at the hinge joints of the test strips and the test chair, and the limit components are all used to limit the rotation of the test strips. A number of patches are provided on the test strips, and the materials of the patches are all non-metallic insulators. Detection points made of metal materials are provided on the patches. Driving cavities corresponding to the positions of the patches are also provided on the test strips. Driving sheets are provided in the driving cavities, and the driving sheets are all made of piezoelectric materials. Driving components and vibration components corresponding to the positions of the driving cavities are also provided on the test strips. The driving components are used to drive the driving sheets to vibrate and drive the patches to move, and the vibration components are used to drive the electrons on the driving sheets to move; The acquisition module further includes a three-axis electromagnetic sensor, which is used to acquire the position information of the detection points.

[0009] Further, the adjustment module includes an adjustment component. The adjustment component includes a pneumatic telescopic rod which is connected to a pump component. The pump component is used to drive the pneumatic telescopic rod to work, and first solenoid valves are provided at the connection points between the pneumatic telescopic rod and the pump component. The pneumatic telescopic rod is hinged to the adjacent side wall. A connecting piece is provided at the output end of the pneumatic telescopic rod. The pneumatic telescopic rod is slidably matched with the inner side wall of the test strip through the connecting piece. A number of first cylinders are provided on the pneumatic telescopic rod. The first cylinders are hinged to the adjacent side wall, and the output ends of the first cylinders are hinged to the side wall of the pneumatic telescopic rod. The adjustment module further includes a controller which controls the first cylinders, the first solenoid valves and the pump component to work according to the position information.

[0010] Further, the connecting piece is a fixed pulley.

[0011] Further, the connecting piece includes a fixing plate which is hinged to the output end of the pneumatic telescopic rod. A number of limiting cylinders are provided on the side wall of the fixing plate away from the pneumatic telescopic rod. Compression springs are provided in the limiting cylinders. First electromagnets are provided at both ends of each compression spring. The first electromagnets close to the limiting cylinders are fixedly connected to the limiting cylinders. The controller controls the first electromagnets to work according to the position information.

[0012] Further, the data processing module is also used to judge whether the patient's back is symmetric along the spine according to the position information before connecting two adjacent points pairwise. When the patient's back is symmetric along the spine, the data processing is terminated. The output module is also used to output a prompt message to the user when the patient's back is symmetric along the spine.

[0013] Further, the data processing module is also used to construct a prediction model by using the medical records of past patients, the best force application points, the best force application angles, the best correction forces, the time difference at the next follow-up visit and the biomechanical model at the next follow-up visit, and use the prediction model to correct the force application points, the force application directions and the magnitudes of the correction forces required for the patient obtained from the biomechanical model.

[0014] Further, the adjustment module further includes a number of fixed air bags which are all connected to the pump component. Second solenoid valves are provided at the connection points between the fixed first cylinders and the pump component. Non-metallic particles are provided in the fixed air bags. The controller controls the pump component and the second solenoid valves to work according to the position information.

[0015] Further, a second cylinder is provided on the fixing plate. The controller controls the second cylinder to work according to the position information.

[0016] Further, the data processing module is also used to calculate the extreme values in the position information according to the position information and screen out the extreme values before generating the back curve.

[0017] The technical principle and beneficial effects of the above solution: This solution calculates data such as the force application points, force application directions, and magnitudes of corrective forces required for spinal correction of a patient by obtaining the positions of several points on the patient's back skin and constructing a biomechanical model of the patient. After obtaining the above data, based on these data, the test range is expanded to conduct a force application experiment on the patient, and through the experiment, the optimal force application points, force application directions, and magnitudes of corrective forces are selected.

[0018] Compared with the existing technology, this solution can eliminate the errors that may be brought when some theoretical data are applied clinically, reduce the pain of patients caused by data errors, reduce the number of brace adjustments, thereby reducing the patient's resistance and treatment costs. At the same time, compared with the solutions that frequently use technologies such as X-rays to obtain the spinal state of patients, this solution causes less harm to patients and helps improve the acceptance of subsequent patients and their families.

[0019] In functional training, children with cerebral palsy usually do not use braces and cannot detect the symmetry of the spine or trunk in real time, resulting in the inability to detect and correct posture deviations in a timely manner during the training process.

[0020] This solution can obtain the position information of several points on the patient's back in real time through components such as a test chair, a test strip, and a three-axis electromagnetic sensor, and construct a back curve. These curves can reflect the state of the spine in real time, including information such as the bending angle, position, and shape. The data processing module can quickly analyze the collected data and provide real-time feedback to medical staff through an output module (such as a display screen). If spinal asymmetry or posture deviation is found, medical staff can adjust the patient's posture or training plan in a timely manner.

[0021] In the existing technology, even if children with cerebral palsy use braces, they may adopt compensatory postures during daily activities, resulting in the progression of the scoliosis angle with age and ultimately failing to achieve the ideal training effect.

[0022] This solution can calculate the optimal force application points, force application angles, and magnitudes of corrective forces through finite element analysis and a biomechanical model, and conduct an actual force application experiment on the patient's back through an adjustment module to verify the effectiveness of the theoretical data. This helps to find the most suitable correction plan for the patient and reduce the occurrence of compensatory postures.

[0023] The prediction model constructed using the medical records of past patients can correct and optimize the correction data of the current patient, further improving the pertinence and effectiveness of the correction plan.

[0024] During the functional training process, if it is found that the patient has a compensatory posture, the force application position and intensity can be adjusted in real time through an adjustment module (such as a pneumatic telescopic rod and a fixed airbag) to help the patient correct the posture.

[0025] This solution can effectively solve the problem that the spinal symmetry of children with cerebral palsy cannot be detected in real time during functional training by monitoring the spinal state in real time and accurately correcting the compensatory posture, and helps to achieve the goal of precise rehabilitation.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of an embodiment of the sitting spinal correction measurement system for cerebral palsy patients of the present invention; Figure 2 It is an axonometric view of an embodiment of the sitting spinal correction measurement system for cerebral palsy patients of the present invention; Figure 3 It is a top view of an embodiment of the sitting spinal correction measurement system for cerebral palsy patients of the present invention; Figure 4 It is a sectional view taken along the line A-A in 3: Figure 5 It is Figure 4 an enlarged view of part B in Figure 6 It is a sectional view of Embodiment 3 of the sitting spinal correction measurement system for cerebral palsy patients of the present invention; Figure 7 It is Figure 6 an enlarged view of part C in Figure 8 It is a circuit schematic diagram of Embodiment 3 of the sitting spinal correction measurement system for cerebral palsy patients of the present invention; Figure 9 It is a sectional view of Embodiment 5 of the sitting spinal correction measurement system for cerebral palsy patients of the present invention.

[0028] Reference numerals in the accompanying drawings of the specification include: 1, test chair; 11, fixing strap; 12, base; 13, electric cylinder; 2, test strip; 3, patch; 31, detection point; 4, driving assembly; 41, permanent magnet; 42, spring; 43, driving piece; 44, second electromagnet; 5, adjusting assembly; 51, connecting piece; 511, fixed pulley; 512, fixing plate; 5121, first electromagnet; 5122, limiting cylinder; 5123, compression spring; 52, fixed airbag; 53, pneumatic telescopic rod; 531, outer tube; 532, inner rod; 54, first cylinder; 55, second cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] The following is a further detailed description through specific embodiments: Embodiment 1:

[0033] As shown in the attached Figure 1 figure: A sitting posture spinal correction measurement system for cerebral palsy patients, comprising: An acquisition module, which is used to acquire the position information of several points on the patient's back; A data processing module, which is used to connect adjacent points in pairs according to the position information to form several smooth and intersecting back curves. Using the back curves, a biomechanical model is constructed through finite element analysis. The biomechanical model includes the bending angle, position, and shape of the patient's spine corresponding to the formed back curves, etc. According to the biomechanical model, different magnitudes and schemes of forces are applied at different positions on the biomechanical model, and it is judged whether the force of this magnitude applied at this position at this angle can achieve the expected correction effect according to the deformation state of the biomechanical model. The force application point, force application direction, and magnitude of the correction force with the most similar effect to the expected correction effect are selected as the force application point, force application direction, and magnitude of the correction force required for the patient's correction.

[0034] The data processing module is also used to determine whether the patient's back is symmetric along the spine according to the position information before connecting adjacent points in pairs, and terminate the data processing when the patient's back is symmetric along the spine.

[0035] During the process of using this solution, when the position information collected on both sides of the patient's spine can be symmetric along a certain axis during the process of the data processing module processing the position information, it is very likely that the patient's back is symmetric along the spine. At this time, it is very likely that the patient does not have scoliosis. At this time, the data processing module terminates the data processing, avoiding ineffective data processing and prolonging the patient's diagnosis and treatment time.

[0036] The data processing module is also used to establish the association between the medical records of past patients, the best force application points, the best force application angles, the best correction forces, the time difference at the next follow-up visit, and the biomechanical model at the next follow-up visit. Using the rehabilitation status of the patient's spine during this time difference, the characteristics of the patient in the medical record (such as age, deformation, degree of cerebral palsy, cerebral palsy treatment plan, brace type selection, etc.), the patient's rehabilitation status, and the best force application points, the best force application angles, and the best correction forces are associated. The above associations are used to construct a prediction model, and the prediction model is used to correct the force application points, force application directions, and magnitudes of the correction forces required for the patient obtained from the biomechanical model, that is, to predict the treatment effects of the force application points, force application directions, and correction forces obtained by the biomechanical model for this patient using the data of past patients with similar medical records to this patient, first judge whether the data is reasonable, and adjust the data according to whether it is reasonable. Compared with the prior art, it helps to further improve the effectiveness of the data, and at the same time can also avoid the influence of past bad data on the subsequent use process.

[0037] The data processing module is also used to partition the position information, obtain the average value of the position information in each area, calculate the difference between the position information in each area and the average value in that area respectively. When the difference is greater than the preset maximum value, the position information is an extreme value, and before generating the back curve, the extreme value is screened out to reduce the interference of the extreme value on the subsequent generation of the biomechanical model, thereby reducing the error of the subsequent generated data.

[0038] Adjustment module, which is used to apply force to the corresponding position on the patient's back according to the force application point, force application direction and magnitude of the correction force, apply force successively within a set range centered on the corresponding position of the force application point on the patient's back, and keep the magnitude and direction of the force unchanged during each force application process. Select the position with the smallest difference between the patient's spinal curvature angle and the normal spinal curvature amplitude within this range as the optimal force application point, apply force at the optimal force application point, adjust the force application angle centered on the force application direction, and keep the magnitude of the force unchanged during the adjustment process. Select the angle with the smallest difference between the patient's spinal curvature angle and the normal spinal curvature amplitude as the optimal force application angle. Calculate the maximum correction force that the patient can withstand according to the magnitude of the correction force, apply force to the patient's back at the optimal force application point with the optimal force application angle, and the force changes from small to large and the maximum value does not exceed the maximum correction force. Select the force with the smallest difference between the patient's spinal curvature angle and the normal spinal curvature amplitude as the optimal correction force. Through the temporary force application experiment on the patient's body by the adjustment module, verify whether there are better numerical values around the theoretical numerical values of the force application point, force application direction and magnitude of the correction force required for the patient's correction obtained through the biomechanical model, so as to improve the effectiveness of the data and reduce the pain of the patient during the subsequent correction process; Output module, including a display screen and a communication module. When the best data is obtained, use the display screen or the communication module to output the optimal force application point, the optimal force application angle and the optimal correction force to the user for reference by medical staff. The output module is also used to output a prompt message to the user when the patient's back is symmetrical along the spine.

[0039] Embodiment 2:

[0040] As shown in the appendix Figure 1 - Appendix Figure 5As shown, the difference from Embodiment 1 is that the acquisition module includes a test chair 1, on which test strips 2 are symmetrically arranged. Both the test strips 2 and the test chair 1 are used to fix the patient's position. The materials of both the test strips 2 and the test chair 1 are magnetic isolation materials, and the test strips 2 are made of elastic materials. The test strips 2 are all hinged to the side wall of the test chair 1, and a limiting component is provided at the hinge of the test strip 2 and the test chair 1. The limiting components are all used to limit the rotation of the test strip 2. In this embodiment, the limiting component (not shown in the figure) includes a ratchet wheel, the ratchet wheel is coaxially welded to the hinge point of the test strip 2, and a pawl is engaged with the ratchet wheel. The pawl is hinged to the test chair 1, and a torsion spring is provided at the hinge of the pawl and the test chair 1. One end of the torsion spring is fixedly connected to the pawl, and the other end of the torsion spring is fixedly connected to the test chair 1. A plurality of patches 3 are provided on the side wall of the test strip 2 close to the patient, and the materials of the patches 3 are all non-metal insulators. Detection points 31 made of metal materials are provided on the patches 3. A driving cavity corresponding to the position of the patch 3 is also provided on the test strip 2. Driving pieces 43 are provided in the driving cavities. The driving pieces 43 are all made of piezoelectric materials. A driving component 4 and a vibration component corresponding to the position of the driving cavity are also provided on the test strip 2. The driving component 4 is used to drive the driving piece 43 to vibrate and drive the patch 3 to move. The driving component 4 includes a permanent magnet 41, a second electromagnet 44, and a magnetic isolation layer provided in the driving cavity. The second electromagnet 44 is fixedly connected to the side wall of the driving cavity by bolts. The permanent magnet 41 is welded and fixed to one end of the spring 42 away from the second electromagnet 44. The vibration component is used to drive the charges on the driving piece 43 to move, thereby driving the patch 3 to generate static electricity. The vibration component includes a storage battery, the storage batteries are all electrically connected to the driving piece 43, and the driving piece 43 is also electrically connected to an electric control switch; The acquisition module further includes a three-axis electromagnetic sensor, which is used to acquire the position information of the detection point 31.

[0041] The adjustment module includes an adjustment component 5, which is used to adjust the shape and position of the fixed airbag 52. The adjustment component 5 includes a pneumatic telescopic rod 53. The pneumatic telescopic rod 53 includes an outer tube 531, and an inner rod 532 is slidably fitted in the outer tube 531. The outer tube 531 is communicated with a pump component, and the pump component is used to drive the pneumatic telescopic rod 53 to work. In this embodiment, the pump component is an air pump, and a first solenoid valve is provided at the connection of the outer tube 531 and the pump component. The side of the outer tube 531 away from the inner rod 532 is hinged to the adjacent side wall. A connecting piece 51 is provided at one end of the inner rod 532 away from the outer tube 531. In this embodiment, the connecting piece 51 is a fixed pulley 511, and the fixed pulley 511 is fixedly connected to the inner rod 532 by bolts. The pneumatic telescopic rod 53 is slidably fitted with the inner side wall of the test strip 2 through the connecting piece 51. A first cylinder 54 is provided on the pneumatic telescopic rod 53. The first cylinder 54 is hinged to the adjacent side wall, and the output end of the first cylinder 54 is hinged to the outer side wall of the outer tube 531.

[0042] The adjustment module further includes a controller. The three-axis electromagnetic sensor, the first cylinder 54, the first solenoid valve, and the pump assembly are all electrically connected to the controller. The controller controls the operation of the first cylinder 54, the first solenoid valve, and the pump assembly according to the position information.

[0043] The specific implementation process is as follows: During the implementation of this solution, keep the patient's back dry. Then assist the patient to straddle the test chair 1. Subsequently, start the acquisition module, and the second electromagnet 44 works. The magnetic force generated by the second electromagnet 44 repels the permanent magnet 41, thereby pulling the spring 42. Then the controller cuts off the power supply of the second electromagnet 44, so that the repulsion between the second electromagnet 44 and the permanent magnet 41 is released, and the spring 42 resets. And repeat the above process. During this process, the outer ring of the spring 42 continuously impacts the test strip 2. Since the test strip 2 is made of piezoelectric material, during the collision, the test strip 2 generates a positive piezoelectric effect, and the charges on the test strip 2 move. Since the test strip 2 is adjacent to the patch 3, the charge movement on the test strip 2 is transmitted to the patch 3, thereby causing the charge movement on the patch 3. At the same time, since the patch 3 is an insulator, the charges are difficult to flow inside the insulator, forming static electricity.

[0044] During this process, the caregiver rotates the test strip 2 downward so that the test strip 2 gradually fits the patient's back. Since the patch 3 has static electricity, when the patch 3 gradually approaches the dry back skin of the patient, the charges between the two attract each other to generate an electrostatic adsorption force, so that the patch 3 adheres to the patient's back. During this process, the ratchet fluctuates the pawl movement. When the test strip 2 reaches the appropriate position, the pawl restricts the reverse rotation of the ratchet, thereby restricting the position of the test strip 2 to a certain extent.

[0045] After the adjustment of the test strip 2 is completed, the three-axis electromagnetic sensor obtains the positions of the three axial test points, thereby obtaining the positions of each test point in space, that is, the position information. According to the position information, the back curve of the patient can be obtained.

[0046] Meanwhile, due to the particularity of cerebral palsy patients, some patients will have abnormal muscle tone. When obtaining the position information of the patient's back, the movement of the patient's body easily affects the accuracy of data collection. In this solution, the ratchet and pawl can be used to limit the position of the test strip 2 to a certain extent. At the same time, the test strip 2 has a certain weight, so as to limit the patient's posture, reduce the data collection error caused by the movement of the patient's body, and the adsorption force generated by static electricity can attach the patch 3 to the patient's back, so that the test point also follows the patch 3 and adheres to the patient's skin. When the patient's posture changes due to factors such as muscle tone, the test point can move with the patient to a certain extent. At this time, the caregiver can go to adjust the patient's posture to ensure the smooth progress of the test. During this process, the test point that moves with the patient can avoid the data error between the front and back acquisitions caused by the movement of the test piece due to the patient's actions. At the same time, compared with the solution of directly fixing the test point to the patient's back using a plastic structure, etc., this solution can reduce the workload of the operator during the test point layout process, and at the same time reduce the discomfort of the patient during use and improve the acceptance of the solution. At the same time, during the reset process of the spring 42, it can briefly press the patch 3 through the side wall of the test strip 2, so as to assist the patch 3 to expel the air between it and the patient's skin to a certain extent.

[0047] Subsequently, the data processing module obtains the force application point, force application direction, and magnitude of the corrective force required for the patient's correction. The controller controls the first cylinder 54 and the pump assembly to work, and at the same time controls the opening of the second solenoid valve corresponding to the pneumatic telescopic rod 53 closest to the force application point. By changing the air pressure in the outer tube 531, the pneumatic telescopic rod 53 is driven to expand and contract, and at the same time, the position of the pneumatic telescopic rod 53 is adjusted by the first cylinder 54, so that the contact point between the fixed pulley 511 and the inner side wall of the fixed airbag 52 moves to the position of the force application point, and by adjusting the first cylinder 54 and the pneumatic telescopic rod 53, the fixed pulley 511 is made to push the fixed airbag 52 to deform, thereby giving the patient a thrust to support the patient's spine. Subsequently, with the positioning point as the center and the length of the preset range as the radius, a test range is selected. By adjusting the lengths of the first cylinder 54 and the pneumatic telescopic rod 53, the contact position between the fixed pulley 511 and the fixed airbag 52 is adjusted, so that the fixed pulley 511 supports the patient's spine at each point within the set test range, and this process is relatively slow to avoid causing discomfort to the patient or causing patient injury due to overly intense movements. During this process, the controller selects the position with the best correction effect as the best force application point based on the change of the patient's back curve, and adjusts the first cylinder 54 and the pneumatic telescopic rod 53 to make the contact position between the fixed pulley 511 and the fixed airbag 52 adjust to this point.

[0048] After determining the optimal force point, the force direction required for correction of the patient obtained by the data processing module is used, and a certain angle is increased or decreased with the force direction as the center to obtain the test range. The controller coordinates the length of the two groups of first cylinders 54 and the length of the pneumatic telescopic rod 53 to adjust the components that mainly apply pressure to the optimal force point, so that the angle of pressure is adjusted within the test range, and the pressure angle with the best correction effect is selected as the optimal force angle. Then the controller sets the maximum correction force for the patient according to the size of the correction force and the specific physical condition of the patient. The controller controls the first cylinder 54, the pump assembly and the second solenoid valve to work, and gradually increase the force applied to the patient's back at the optimal force point at the optimal force angle, and selects the force that can achieve the best correction effect for the patient as the optimal correction force.

[0049] In the above process, due to the design of the patch 3, when the first cylinder 54 or the pneumatic telescopic rod 53 pushes the fixed airbag 52 to deform, the patch 3 can ensure to a certain extent that the fixed airbag 52 fits the patient's skin and the test point does not shift, thereby ensuring that the patient's back curve collected in this process is valid, avoiding inaccurate data acquisition due to test point shift, or inaccurate positioning of the positioning point determined by the adjustment module. Compared with the prior art, this solution, through the design of the adjustment component 5, etc., after obtaining the theoretically required force point, force direction and magnitude of the correction force for the patient, can help medical staff find the best force point, force direction and magnitude of the correction force for the patient by conducting a short force experiment on the patient himself, so as to eliminate the errors that may be caused by the application of theoretical data in clinical practice as much as possible, reduce the pain of patients, especially young patients, and help the subsequent treatment and correction. At the same time, due to the use of the test chair 1 and the test strip 2 in this solution, it can simulate the posture of hugging the patient to a certain extent, which helps to improve the patient's sense of security during the treatment process and reduce the patient's resistance. At the same time, due to the straddle-sitting posture, during use, medical staff can guide the patient to lift his legs and arch his back, so that the muscles on both sides of the patient's spine protrude, close to the bending position used in the scoliosis examination of non-cerebral palsy patients, thereby further improving the data when generating the biomechanical model and improving the accuracy of the subsequent output data such as the force point, force direction and magnitude of the correction force.

[0050] After the test is completed, the operator starts the electric control switch to connect the battery and the circuit of the drive plate 43. The drive plate 43 generates an inverse piezoelectric effect, causing the drive plate 43 to vibrate. During the vibration process, energy is transferred to the patch 3, causing the patch 3 to vibrate as well, thereby offsetting part of the effect of the electrostatic adsorption force, reducing the difficulty for subsequent medical staff to reversely rotate the test strip 2 to release its fixing effect on the patient, and at the same time reducing the probability of damage to the patch 3.

[0051] Embodiment 3:

[0052] As shown in the attached Figure 6 to the attached Figure 8 figures, the difference from Embodiment 2 is that in this embodiment, the connecting member 51 includes a fixing plate 512. The fixing plate 512 is hinged to one end of the inner rod 532 away from the outer tube 531. A second cylinder 55 is hinged to the side wall of the fixing plate 512 close to the inner rod 532. The second cylinder 55 is hinged to the inner rod 532. A number of limiting cylinders 5122 are provided on one side wall of the fixing plate 512 away from the pneumatic telescopic rod 53. Compression springs 5123 are provided in the limiting cylinders 5122. The compression springs 5123 are fixedly welded to the fixing plate 512. First electromagnets 5121 are provided at both ends of the compression springs 5123. The first electromagnet 5121 close to the limiting cylinder 5122 is fixedly connected to the limiting cylinder 5122 by bolts. The first electromagnet 5121 is electrically connected to the controller. The controller controls the operation of the first electromagnet 5121 and the second cylinder 55 according to the position information.

[0053] The specific implementation process is as follows: When using this solution, when the adjustment component 5 is started, the first electromagnet 5121 is immediately started, so that the two first electromagnets 5121 attract each other, thereby compressing the compression spring 5123 to prevent the compression spring 5123 from squeezing the patient's back. After the controller controls the first cylinder 54, the pump assembly, and the second solenoid valve to adjust the fixing plate 512 to a suitable position, the controller controls the first electromagnets 5121 in different limiting cylinders 5122 to work one by one, gradually reducing the current passing through one of the first electromagnets 5121, reducing the squeezing effect of the first electromagnet 5121 on the compression spring 5123, so that the compression spring 5123 can gradually rebound to squeeze the patient's skin, and when adjusting the first electromagnet 5121 in the next limiting cylinder 5122, the current of the previous first electromagnet 5121 is adjusted again to make the first electromagnet 5121 in this limiting cylinder 5122 reset. By sequentially controlling the operation of the first electromagnets 5121 and judging the best stress point during this process according to the curve of the patient's back, this solution can avoid the adjustment error caused by external factors such as air pressure during the use of the first cylinder 54 and the pneumatic telescopic rod 53, thereby realizing more accurate adjustment.

[0054] During the use process, the controller can also determine the angle between the axis of the compression spring 5123 and the tangent of the patient's skin surface according to the back curve, so as to determine the force application angle. Subsequently, the angle between the fixing plate 512 and the tangent of the patient's skin surface is adjusted through the second cylinder 55 to realize the adjustment of the force application angle. After the force application angle adjustment is completed, the position of the compression spring 5123 that should apply pressure to the user at this time is calculated according to the relationship between the real-time position and the initial position of each compression spring 5123 on the fixing plate 512. Subsequently, the compression spring 5123 is driven by the first electromagnet 5121 to apply pressure to the patient's back.

[0055] Meanwhile, due to the design of the spring 42, part of the impact force generated during the movement of the pneumatic telescopic rod 53 can be absorbed during the pressurizing process, avoiding the influence on the patient's state during the operation of the pneumatic telescopic rod 53 and the first cylinder 54, etc.

[0056] Example 4:

[0057] As shown in the attached Figure 1 figure, the difference from Example 3 is that the adjustment module further includes a number of fixed airbags 52, and the fixed airbags 52 are all connected to the pump assembly. Second solenoid valves are provided at the connection points of the fixed first cylinder 54 and the pump assembly. Particles made of non-metallic materials are provided inside the fixed airbags 52, and the controller controls the operation of the pump assembly and the second solenoid valves according to the position information.

[0058] The specific implementation process is as follows: Since spinal scoliosis correction often requires confirming multiple force application positions, but it is difficult for the number of pneumatic telescopic rods 53 to change again during the use of the adjustment module. During use, if the number of force application points required for the patient's correction obtained from the biomechanical model is greater than the number of pneumatic telescopic rods 53, at this time, while confirming the optimal force application point, the optimal force application angle, and the optimal correction force through the first cylinder 54, the pump assembly, the second solenoid valve, and the second cylinder 55, etc., the controller controls the pump assembly and the second solenoid valves corresponding to the fixed airbags 52 at positions close to the optimal force application point to work. The pump assembly extracts the gas inside the fixed airbag 52, causing the air pressure inside the fixed airbag 52 to drop sharply. The particles inside the fixed airbag 52 are squeezed against each other, and the work done to overcome the frictional force during the relative movement between the particles also increases accordingly. Thus, as the air pressure drops, the probability of relative movement between the particles will gradually decrease, thereby restricting the shape of the fixed airbag 52, making the fixed airbag 52 at this position become a part of the patient's temporary brace. Subsequently, the controller controls the first cylinder 54, the pump assembly, and the corresponding second solenoid valves again, withdraws the pneumatic telescopic rod 53 at this position, and then applies force to the next force application point.

[0059] Compared with the prior art, in this solution, the design of the fixed airbags 52 and the particles therein can make up for the limited number of pneumatic telescopic rods 53, but the number of force application points required for the patient's correction is unknown, resulting in insufficient number of components for data testing and affecting the test effect. At the same time, since the fixed airbags 52 have a certain elasticity, the pressure applied to the patient's body by the test chair 1 and the test strip 2 is reduced through elastic deformation, reducing the discomfort during the test. At the same time, the shape of the fixed airbags 52 can be restricted to form a temporary protective device for the patient on the side walls of the fixed chair and the fixed strip, thereby helping medical staff to further judge the validity of the data at this time and further reducing the pain of the patient caused by data errors.

[0060] Example 5:

[0061] As shown in the appendix Figure 9 As shown, the difference from Embodiment 4 is that the test chair 1 is also provided with a telescopic component and a fixing component. The telescopic component includes a base 12. An electric cylinder 13 is provided on the top wall of the base 12. The electric cylinder 13 is fixedly connected to the base 12 by bolts, and the output end of the electric cylinder 13 is fixedly connected to the bottom wall of the test chair 1 by bolts. The fixing component includes symmetrically arranged fixing belts 11. Both ends of the fixing belts 11 are adhesively fixed to the side wall of the test chair 1, and adjustment buckles are slidably fitted on the fixing belts 11. The adjustment buckles are day-shaped buckles.

[0062] The specific implementation process is as follows: When using this solution, the accompanying personnel or medical staff first obtain the height information of the patient, and according to the patient's height, control the electric cylinder 13 to work, so that the electric cylinder 13 contracts or extends, and then the top wall of the base 12 descends or rises. When the electric cylinder 13 is adjusted to the appropriate position, assist the patient to straddle the test chair 1, and put the patient's legs into the fixing belts 11. Through the adjustment buckles, the fixing belts 11 can exert a certain extrusion on the patient's legs, and then fix the patient's legs. Subsequently, the accompanying personnel or medical staff continue to adjust the length of the electric cylinder 13 until the patient's soles just touch the ground. At this time, the patient's thighs and calves should be in a right angle state.

[0063] Compared with the prior art, this solution can meet the needs of patients of different ages and heights, so that most patients can maintain a comfortable position during use. Moreover, the use of the fixing belts 11 in this solution can fix the position of some patients with abnormal muscle tension, reduce the measurement error caused by the involuntary movement of the patient during use, and help improve the measurement accuracy of this solution.

[0064] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A sitting posture spinal correction measurement system for cerebral palsy patients, characterized in that, Including: A collection module, which is used to obtain the position information of several points on the patient's back; A data processing module, which is used to connect adjacent points in pairs according to the position information to form several smooth and intersecting back curves, construct a biomechanical model using the back curves, obtain the spinal curvature angle of the patient according to the biomechanical model, and calculate the force application points, force application directions and magnitudes of the corrective force required for the patient's correction; An adjustment module, which is used to apply force to the corresponding position on the patient's back according to the force application points, force application directions and magnitudes of the corrective force. Apply force sequentially within a set range centered on the corresponding position of the force application point on the patient's back. Select the position where the difference between the patient's spinal curvature angle and the normal spinal curvature amplitude is the smallest as the optimal force application point, apply force at the optimal force application point, adjust the force application angle centered on the force application direction, and select the angle where the difference between the patient's spinal curvature angle and the normal spinal curvature amplitude is the smallest as the optimal force application angle. Calculate the maximum corrective force that the patient can bear according to the magnitude of the corrective force, apply force to the patient's back at the optimal force application point with the optimal force application angle, and the force changes from small to large and the maximum value does not exceed the maximum corrective force. Select the force where the difference between the patient's spinal curvature angle and the normal spinal curvature amplitude is the smallest as the optimal corrective force; An output module, which is used to output the optimal force application point, the optimal force application angle and the optimal corrective force to the user.

2. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 1, wherein The collection module includes a test chair (1), on which test strips (2) are symmetrically arranged. The test strips (2) and the test chair (1) are both used to fix the patient's body position. The test strips (2) are hinged to the side wall of the test chair (1). Limiting components are provided at the hinged joints of the test strips (2) and the test chair (1), and the limiting components are all used to limit the rotation of the test strips (2). Several patches (3) are provided on the test strips (2), and detection points (31) made of metal are provided on the patches (3). A driving cavity corresponding to the position of the patch (3) is also provided on the test strip (2), and driving pieces (43) are provided in the driving cavities. A driving component (4) and a vibration component corresponding to the position of the driving cavity are also provided on the test strip (2). The driving component (4) is used to drive the driving piece (43) to vibrate and drive the patch (3) to move, and the vibration component is used to drive the electrons on the driving piece (43) to move; The collection module further includes a three-axis electromagnetic sensor, which is used to collect the position information of the detection point (31).

3. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 2, characterized in that, The adjustment module includes an adjusting component (5). The adjusting component (5) includes a pneumatic telescopic rod (53). The pneumatic telescopic rod (53) is communicated with a pump component. The pump component is used to drive the pneumatic telescopic rod (53) to work. And first solenoid valves are provided at the connection parts of the pneumatic telescopic rod (53) and the pump component. The pneumatic telescopic rod (53) is hinged to the adjacent side wall. A connecting piece (51) is provided at the output end of the pneumatic telescopic rod (53). The pneumatic telescopic rod (53) is slidably matched with the inner side wall of the test strip (2) through the connecting piece (51). A number of first cylinders (54) are provided on the pneumatic telescopic rod (53). The first cylinders (54) are hinged to the adjacent side wall. And the output end of the first cylinder (54) is hinged to the side wall of the pneumatic telescopic rod (53). The adjustment module further includes a controller. The controller controls the first cylinders (54), the first solenoid valves and the pump component to work according to the position information.

4. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 3, wherein The connecting piece (51) is a fixed pulley.

5. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 3, characterized in that, The connecting piece (51) includes a fixing plate (512). The fixing plate (512) is hinged to the output end of the pneumatic telescopic rod (53). A number of limiting cylinders (5122) are provided on one side wall of the fixing plate (512) away from the pneumatic telescopic rod (53). Compression springs (5123) are provided in the limiting cylinders (5122). First electromagnets (5121) are provided at both ends of the compression spring (5123). The first electromagnet (5121) close to the limiting cylinder (5122) is fixedly connected to the limiting cylinder (5122). The controller controls the first electromagnet (5121) to work according to the position information.

6. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 5, characterized in that The data processing module is further used to judge whether the patient's back is symmetrical along the spine according to the position information before connecting adjacent points in pairs. When the patient's back is symmetrical along the spine, the data processing is terminated. The output module is further used to output a prompt message to the user when the patient's back is symmetrical along the spine.

7. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 6, characterized in that, The data processing module is further used to construct a prediction model by using the medical records of past patients, the best force application points, the best force application angles, the best correction forces, the time difference at the next follow-up visit and the biomechanical model at the next follow-up visit. And the prediction model is used to correct the force application points, the force application directions and the magnitudes of the correction forces required for the patient obtained from the biomechanical model.

8. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 7, characterized in that, The adjustment module further includes a number of fixed air bags (52). And the fixed air bags (52) are all communicated with the pump component. Second solenoid valves are provided at the connection parts of the fixed first cylinders (54) and the pump component. Non-metallic material particles are provided in the fixed air bags (52). The controller controls the pump component and the second solenoid valves to work according to the position information.

9. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 8, characterized in that, A second cylinder (55) is provided on the fixing plate (512). The controller controls the second cylinder (55) to work according to the position information.

10. The sitting posture spinal correction measurement system for cerebral palsy patients according to claim 9, characterized in that, The data processing module is further used to calculate the extreme values in the position information according to the position information and screen out the extreme values before generating the back curve.

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