Fiber-optic sensing based scoliosis orthosis and intelligent wearing management system thereof

Abstract

The application discloses a spine scoliosis orthosis based on optical fiber sensing and an intelligent wearing management system thereof, and the orthosis comprises an orthosis body, a muscle deformation sensor for monitoring muscle deformation, a flexible pressure sensor for monitoring pressure and a temperature and humidity sensor for monitoring temperature and humidity are arranged in the orthosis body. The muscle deformation sensor, the flexible pressure sensor and the temperature and humidity sensor are used for monitoring and feeding back the stress, local humidity and temperature of key positions in the wearing state of the hard orthosis in real time, the effective treatment pressure of the orthosis can be individually adjusted by real-time supervision and feedback, the abnormal reminding functions of local pressure, humidity and temperature are realized by multi-sensor fusion, and the correction effect of the orthosis is improved, and the comfort and safety of wearing are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scoliosis orthosis, and in particular to a scoliosis orthosis based on optical fiber sensing and an intelligent wearing management system thereof. BACKGROUND

[0002] Currently, hard orthosis wearing is the most optimal recommendation for the conservative treatment of scoliosis, and the pressure during the fitting process of the orthosis is closely related to the correction effect. However, the current three-point correction force design of the orthosis is highly dependent on manual experience, and in clinical practice, the orthosis is often worn to the tightest state that can be tolerated, and there is a scientific blind spot in the pressure of the orthosis wearing. These orthoses completely lack real-time data monitoring feedback and progressive personalized adjustment functions according to patient tolerance. The above problems have become the main pain points that hinder the improvement of the treatment effect of the orthosis and the wearing compliance of the adolescent orthosis. In addition, the wearing time of the hard orthosis often needs to reach 22 hours per day or even longer, and it is easy to cause local skin pressure for too long, too large, and wet inner clothing due to sweat, etc. problems, resulting in local skin cyanosis, damage, and even infection, which seriously hinders the correction treatment of the orthosis and weakens the curative effect of the scoliosis orthosis. Therefore, how to promote the adolescent population wearing the orthosis to more accurately receive the correction treatment of the orthosis and safely and comfortably wear the orthosis has become a problem that needs to be solved urgently.

[0003] Although some orthoses have begun to try to add pressure sensors to monitor the orthosis wearing of patients, it has not become mainstream and has its own defects. The sensors used are mostly metal simple pressure sensors, which often need to be embedded in a relatively thick pad, affecting the wearing comfort, and the force feedback process is delayed and deviated, and may interfere with the imaging of the scoliosis spine during the X-ray examination after wearing the orthosis. In addition, some software for monitoring the wearing of the orthosis has also been developed, but due to the limitations of the sensors and their data support elements in data measurement accuracy and data transmission capacity, there are deficiencies in both stress state simulation and data presentation. And the current function is relatively single, only can monitor whether the orthosis is worn, and can not provide real-time pressure feedback to provide suggestions for accurate personalized pressure adjustment.

[0004] Optical fiber sensing technology has gradually been applied in the biomedical field due to its small size, high flexibility, low price, high sensitivity, and anti-electromagnetic interference, but its application in scoliosis correction is still in the exploratory stage. In addition to the above advantages, optical fiber sensing also has the function of one transmission and multiple sensing, that is, the same optical fiber integrated sensor can capture changes in pressure, humidity, temperature, etc. Compared with traditional single metal piezoelectric sensors, temperature sensors, and humidity sensors, it has clear advantages in cost consumption, sensor function, and flexibility.

[0005] In view of the above, in order to solve the above problems, on the basis of developing a multi-modal flexible optical fiber sensor, a multi-modal data fusion intelligent wearable management system for a scoliosis orthosis is developed, which is very important to promote the precise personalized orthosis wearing and intelligent management of scoliosis patients. SUMMARY

[0006] The present application aims to overcome the deficiencies of the above background art, and provides a scoliosis orthosis based on optical fiber sensing and an intelligent wearable management system thereof, which can monitor and feedback patient data in real time and individually adjust the correction force of the orthosis, thereby ensuring the correction effect of the scoliosis orthosis while ensuring the comfort and safety of wearing.

[0007] To achieve the above-mentioned purpose, the present application provides a scoliosis orthosis based on optical fiber sensing, comprising an orthosis body, a muscle deformation sensor for monitoring muscle deformation, a flexible pressure sensor for monitoring pressure, and a temperature and humidity sensor for monitoring temperature and humidity are arranged in the orthosis body.

[0008] The muscle deformation sensor comprises a muscle deformation sensor base and a muscle deformation sensor optical fiber, and the muscle deformation sensor optical fiber is located inside the muscle deformation sensor base; the muscle deformation sensor optical fiber comprises two sections of sinusoidal section optical fiber and three sections of circular arc optical fiber connected in sequence between the two sections of sinusoidal section optical fiber.

[0009] The flexible pressure sensor comprises a flexible pressure sensor base and a flexible pressure sensor optical fiber, and the flexible pressure sensor optical fiber is located inside the flexible pressure sensor base; the flexible pressure sensor optical fiber comprises four sections of first circular arc optical fiber and three sections of second circular arc optical fiber, and the first circular arc optical fiber and the second circular arc optical fiber are alternately connected.

[0010] The temperature and humidity sensor comprises a temperature and humidity sensor base and a temperature and humidity sensor optical fiber, and the temperature and humidity sensor optical fiber penetrates the inside of the temperature and humidity sensor base; the temperature and humidity sensor base is provided with a groove with an open top, and the groove is used for the temperature and humidity sensor optical fiber to form an exposed area of the temperature and humidity sensor optical fiber; the temperature and humidity sensor optical fiber comprises a first straight optical fiber and a second straight optical fiber, and a humidity-sensitive material layer is covered on the first straight optical fiber or the second straight optical fiber in the exposed area.

[0011] Further, the driving function of the sinusoidal section optical fiber of the muscle deformation sensor optical fiber is:

[0012]

[0013] In the formula, x is the horizontal coordinate value in the coordinate system, and y is the vertical coordinate value in the coordinate system.

[0014] Further, the radius of the circular arc fiber of the muscle deformation sensor fiber is 8.5 mm, the angle of the circular arc fiber located in the middle is 270°, and the angle of the circular arc fiber located at both ends is 240°.

[0015] Further, the first circular arc fiber of the flexible pressure sensor fiber is a circular arc fiber with an angle of 120° and a radius of 2 mm; and the second circular arc fiber is a circular arc fiber with an angle of 240° and a radius of 10 mm.

[0016] Further, the first straight fiber and the second straight fiber pass through the temperature and humidity sensor base and are fixed at a torsion angle of 15°.

[0017] Further, a bare part is arranged on the first straight fiber or the second straight fiber located in the exposed area, and the humidity-sensitive material layer covers the bare part of the first straight fiber or the second straight fiber.

[0018] Still further, the back of the orthosis body is provided with a mounting groove for placing circuit hardware; a plurality of bandage mounting holes for the bandage to pass through are arranged at the lengthwise ends of the orthosis body, and a plurality of air holes and passing holes for the sensor to pass through are also arranged on the orthosis body.

[0019] Still further, the flexible pressure sensor is arranged in the middle of the orthosis body, and the muscle deformation sensor and the temperature and humidity sensor are arranged on both sides or one side of the orthosis body.

[0020] The application also provides an intelligent wearing management system of the scoliosis orthosis based on the optical fiber sensing, which comprises an optical fiber demodulator, a host computer, a data display module and an alarm module.

[0021] The optical fiber demodulator is used to receive the muscle deformation, pressure, humidity and temperature data monitored by the muscle deformation sensor, the flexible pressure sensor and the temperature and humidity sensor, and transmit the data to the host computer after photoelectric conversion processing by the optical fiber demodulator.

[0022] The host computer is used to process the data transmitted by the optical fiber demodulator, input the output data of the optical fiber demodulator and the calibration data of the muscle deformation, pressure, humidity and temperature into the regression algorithm for human health monitoring, establish a mapping model of the optical fiber sensing data and the corresponding physical quantity, monitor and demodulate the health status of the human body, and upload the result to the data display module.

[0023] The data display module comprises one or more of a mobile phone terminal, a computer terminal or a web terminal, and is used to receive and display the data transmitted by the host computer.

[0024] The alarm module is used for alarming and reminding according to the preset muscle deformation range, pressure range, humidity and temperature red line.

[0025] Further, the intelligent wearing management system of the scoliosis orthosis based on optical fiber sensing further comprises a multi-modal data module, which is used for integrated analysis of different forms of data transmitted by the optical fiber demodulator.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] Firstly, the present application designs an intelligent wearing management system of the scoliosis orthosis based on optical fiber sensing to monitor and feedback patient data in real time and to individually adjust the correction force of the orthosis, so as to ensure the correction effect of the scoliosis orthosis and the comfort and safety of wearing.

[0028] Secondly, the orthosis of the present application is designed with three multi-modal sensors, i.e., a muscle deformation sensor, a flexible pressure sensor and a temperature and humidity sensor, and the muscle deformation, pressure, local humidity and temperature of the monitoring part of the scoliosis orthosis are calculated by monitoring the small deformation of the optical fiber sensor. The collected data are transmitted to the display end for visual display through the multi-sensor fusion module after data processing, so as to provide the patient with the abnormal reminding function of local pressure, humidity and temperature and to provide the doctor with key data and thus to provide an effective data basis for subsequent treatment.

[0029] Thirdly, the scoliosis orthosis of the present application can provide the patient with the correction force of scoliosis and also can individually adjust the pressure; the multi-modal data fusion intelligent wearing management system of the present application can provide the patient with the abnormal state reminding, can also show the user with real-time pressure feedback and multi-modal data presentation, and can provide the doctor with data support for subsequent treatment.

[0030] Fourthly, the intelligent wearing management system of the present application has the functions of real-time supervision and feedback and individual adjustment of the effective treatment pressure of the orthosis, multi-sensor fusion and abnormal reminding of local pressure, humidity and temperature, so as to improve the correction effect of the orthosis and to ensure the comfort and safety of wearing. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 Fig. 1 is a structural schematic view of a scoliosis orthosis based on optical fiber sensing;

[0032] Figure 2 Fig. 2 is another angle structural schematic view of the scoliosis orthosis based on optical fiber sensing shown in Fig. 1; Figure 1

[0033] Figure 3 Fig. 3 is a structural schematic view of a multi-modal data fusion intelligent wearing management system of the scoliosis orthosis based on optical fiber sensing.​Figure 1 A schematic view of the main structure of the fiber-optic sensing based scoliosis orthosis shown in use;

[0034] Figure 4 A schematic view of the main structure of the fiber-optic sensing based scoliosis orthosis shown in use; Figure 1 A schematic view of the main structure of the fiber-optic sensing based scoliosis orthosis shown in use;

[0035] Figure 5 A schematic view of the main structure of the muscle deformation sensor;

[0036] Figure 6 A schematic view of the main structure of the muscle deformation sensor;

[0037] Figure 7 A schematic view of the main structure of the flexible pressure sensor;

[0038] Figure 8 A schematic view of the main structure of the flexible pressure sensor;

[0039] Figure 9 A schematic view of the main structure of the temperature and humidity sensor;

[0040] Figure 10 A schematic view of the main structure of the temperature and humidity sensor shown in use; Figure 9 A schematic view of the main structure of the temperature and humidity sensor shown in use;

[0041] Figure 11 A schematic view of the sensor arrangement of the fiber-optic sensing based scoliosis orthosis;

[0042] Figure 12 A schematic view of the intelligent wearing management system of the fiber-optic sensing based scoliosis orthosis;

[0043] In the figure, the orthosis body 1, the muscle deformation sensor 2, the muscle deformation sensor base 21, the muscle deformation sensor fiber 22, the sinusoidal segment fiber 221, the circular arc fiber 222, the flexible pressure sensor 3, the flexible pressure sensor base 31, the flexible pressure sensor fiber 32, the first circular arc fiber 321, the second circular arc fiber 322, the temperature and humidity sensor 4, the temperature and humidity sensor base 41, the temperature and humidity sensor fiber 42, the first straight line fiber 421, the second straight line fiber 422, the groove 43, the humidity sensitive material layer 44, the mounting groove 5, the bandage mounting hole 6, the air hole 7, the through hole 8, the fiber demodulator 9, the upper computer 10, the data display module 11, the alarm module 12, the multi-modal data module 13. DETAILED DESCRIPTION

[0044] The implementation of the present application will be described in detail below in conjunction with the implementation cases, which do not constitute a limitation of the present application, but are only examples. At the same time, the advantages of the present application will become more clear and easy to understand through the description.

[0045] As shown in Figures 1-4 The spine scoliosis orthosis based on optical fiber sensing of the present application comprises an orthosis body 1, which is provided with a muscle deformation sensor 2 for monitoring muscle deformation, a flexible pressure sensor 3 for monitoring pressure, and a temperature and humidity sensor 4 for monitoring temperature and humidity. The back of the orthosis body 1 is provided with a mounting slot 5 for placing circuit hardware; the lengthwise ends of the orthosis body 1 are provided with a plurality of belt mounting holes 6 for the belt to pass through, which can be rectangular holes, and the belt is used to effectively fix the spine scoliosis orthosis with the patient. The orthosis body 1 is also provided with a plurality of air holes 7 and through holes 8 for the sensors to pass through, the air holes 7 can be circular holes, which are convenient for the patient to breathe. The through holes 8 can be circular holes, which are the passing channels of the muscle deformation sensor 2, the flexible pressure sensor 3 and the temperature and humidity sensor 4.

[0046] The design of the orthosis body 1 is based on the body contour data obtained from the test object by 3D scanning, and the digital model of the orthosis is designed according to the body contour. Preferably, the length of the orthosis body 1 is 850mm, and the width is 490mm. The back of the orthosis is designed with a mounting slot for placing circuit hardware, mainly a Bluetooth optical fiber signal converter and a micro power supply, and the hardware mounting slot is 125mm long and 100mm wide.

[0047] The present application is based on the epiphyseal pressure law, i.e. Hueter-Volkmann law, which states that when the epiphysis bears more pressure, the growth of the epiphysis will be inhibited; otherwise, the growth of the epiphysis will be accelerated. The method mainly affects the patient's spine by applying force or torque. The load on the spine during growth will change due to the influence of force and torque, so that the patient's spine grows in the normal direction. The area above which pressure is applied is called the pressure area. At the same time, the concave side of the spine is subjected to tension to promote its growth, and the area where tension is applied is called the release area. By precisely applying force and torque, the normal growth of the patient's spine is promoted. The present application takes into account the ergonomic and personalized treatment needs, and obtains the body contour data of the patient through 3D scanning technology, and designs a digital model that conforms to the patient's body shape. On this basis, the pressure and release areas are determined, as well as the layout of the sensors, to ensure that the orthosis can apply the required force at the correct position while maintaining the comfort of wearing.

[0048] The muscle deformation sensor and the flexible pressure sensor of the present application are designed based on the principle of macro-bending loss of the optical fiber sensor, and the principle is as follows: when the bending radius of the optical fiber sensor is less than a critical value, macro-bending loss occurs, by changing the curvature radius of the bending optical fiber sensor, the reflected light intensity can be changed, by detecting the received light intensity of the optical fiber sensor, the curvature radius of the bending optical fiber sensor can be detected. When the light in the grating satisfies the Bragg condition, the Bragg wavelength can be defined by the following formula:

[0049] λ B =2n eff Λ

[0050] Wherein, n eff is the effective refractive index of the grating; λ B is the grating reflection wavelength; Λ is the grating period.

[0051] The macro-bending loss of the optical fiber sensor per unit length can be expressed as:

[0052]

[0053] Wherein, R is the curvature radius; A c is the wavelength attenuation coefficient, U is the core layer area transverse phase parameter, which is given by the following formula:

[0054]

[0055] Wherein, λ B is the grating reflection wavelength, λ ef is the cutoff wavelength; Δ is the relative refractive index difference between the core and the cladding, n1 and n2 are the core and cladding refractive indexes respectively.

[0056] The single-mode optical fiber is used to form a laser path, when the single-mode optical fiber is bent, the laser will be lost in the optical fiber, which is reflected as the change of intensity on the demodulator. Since the optical fiber is packaged in a flexible base material, when the pressure and muscle deformation change, the optical fiber will also be bent; for the sensor of the present application, the greater the pressure and deformation, the greater the bending loss. By demodulating the light intensity, the change of the pressure and deformation measured by the sensor can be perceived. The Bragg grating is a kind of optical device with periodic variation of refractive index according to position, which is etched in the single-mode optical fiber by special technology, and is essentially a kind of band-stop optical filter; it reflects a specific wavelength, and transmits other wavelengths. When the laser is emitted from the demodulator, it passes through the deformed single-mode optical fiber, is reflected by the Bragg grating, and returns to the demodulator along the original path, so that the light path is lost twice at the bending place, so that the sensitivity of the sensor in the patent is improved.

[0057] As Figure 5 andFigure 6 As shown in the drawings, the muscle deformation sensor 2 comprises a muscle deformation sensor base 21 and a muscle deformation sensor optical fiber 22, the muscle deformation sensor optical fiber 22 is located inside the muscle deformation sensor base 21, and the muscle deformation sensor base 21 is made of silica gel material. The muscle deformation sensor optical fiber 22 comprises two sections of sinusoidal section optical fiber 221 and three sections of circular arc optical fiber 222 connected in sequence between the two sections of sinusoidal section optical fiber 221, the muscle deformation sensor optical fiber 22 is drawn out of the muscle deformation sensor base 21 by a straight optical fiber, and the sections of optical fiber are smoothly connected. The driving function of the sinusoidal section optical fiber 221 of the muscle deformation sensor optical fiber 22 is:

[0058]

[0059] In the formula, x is the horizontal coordinate value in the coordinate system, y is the vertical coordinate value in the coordinate system, and the unit is mm; wherein the origin of the coordinate system is selected as 2 mm below the end of the straight line portion of the single-mode optical fiber at the incident position. The radius of the circular arc optical fiber 222 of the muscle deformation sensor optical fiber 22 is 8.5 mm, and the diameter is 17 mm; the angle of the circular arc optical fiber 222 located in the middle of the muscle deformation sensor optical fiber 22 is 270°, and the angle of the circular arc optical fiber 222 located at both ends is 240°.

[0060] For the muscle deformation sensor, in order to make the optical fiber sensor have high sensitivity in two orthogonal measurement directions, a kind of optical fiber sensor with three loops is designed in the application. The wiring structure can withstand large strain in multiple directions, so that the sensor has a large strain range. As shown in Figure 7 and Figure 8 As shown in the drawings, the flexible pressure sensor 3 comprises a flexible pressure sensor base 31 and a flexible pressure sensor optical fiber 32, and the flexible pressure sensor optical fiber 32 is located inside the flexible pressure sensor base 31; the flexible pressure sensor optical fiber 32 comprises four sections of first circular arc optical fiber 321 and three sections of second circular arc optical fiber 322, the first circular arc optical fiber 321 and the second circular arc optical fiber 322 are alternately connected, the flexible pressure sensor optical fiber 32 is drawn out of the flexible pressure sensor base 31 by a straight optical fiber, and the sections of optical fiber are smoothly connected. The first circular arc optical fiber 321 of the flexible pressure sensor optical fiber 32 is a circular arc optical fiber with an angle of 120° and a radius of 2 mm; the second circular arc optical fiber 322 is a circular arc optical fiber with an angle of 240° and a radius of 10 mm.

[0061] For the flexible pressure sensor, when there is a force acting on the surface of the sensor, the sensor will change its front view area due to being extruded, so that the pressure is converted into the deformation of the optical fiber sensor, and if the pressure is uniformly distributed, the deformation caused is also uniformly distributed, and therefore, manufacturing a sensor that is sensitive in multiple directions can greatly improve the effect of the sensor.In the present application, an optical fiber sensor composed of 7 arc segments connected is used.The wiring structure of the sensor can make the sensor uniformly sense the strain in all directions when subjected to force, so as to improve the sensitivity of the sensor.

[0062] As shown in Figure 9 and Figure 10 , the temperature and humidity sensor 4 includes a temperature and humidity sensor base 41 and a temperature and humidity sensor optical fiber 42, the temperature and humidity sensor base 41 is made of silica gel material, the temperature and humidity sensor optical fiber 42 penetrates the inside of the temperature and humidity sensor base 41, the temperature and humidity sensor base 41 is provided with a groove 43 with a top opening, the groove 43 is formed for the temperature and humidity sensor optical fiber 42 to pass through to form an exposed area of the temperature and humidity sensor optical fiber 42; the temperature and humidity sensor optical fiber 42 includes a first straight optical fiber 421 and a second straight optical fiber 422, the first straight optical fiber 421 or the second straight optical fiber 422 located in the exposed area is covered with a humidity sensitive material layer 44. The first straight optical fiber 421 and the second straight optical fiber 422 pass through the temperature and humidity sensor base 41 and are fixed at a torsion angle of 15°. The first straight optical fiber 421 or the second straight optical fiber 422 located in the exposed area is provided with a bare part, and the humidity sensitive material layer 44 covers the bare part of the first straight optical fiber 421 or the second straight optical fiber 422. The humidity sensitive material layer expands when it contacts moisture, causing the central wavelength of the optical fiber wrapped therein to shift, and the humidity information can be obtained by calibrating the shift amount. In the manufacturing process, PMMA is coated on the surface of the optical fiber after the cladding is removed by the rotation coating method to form the humidity sensitive material layer.

[0063] To improve the sensitivity of temperature detection, the second straight optical fiber in the exposed area is removed from the cladding and part of the core, thereby generating a sensitive area with higher sensitivity to curvature and environmental changes, the sensitive area is formed by abrasive rubbing, and the length thereof is about 7-8mm. Figure 10The polymer optical fiber (POF) region is coated with a layer of humidity-sensitive material, which is polymethyl methacrylate (PMMA), a material commonly used in humidity measurement due to its water absorption and humidity sensitivity. The POF made of this material has higher flexibility, higher fracture toughness, and better biocompatibility. To further improve the sensitivity of temperature and humidity measurement, the optical fiber is twisted by an external force to a degree of about 15° when placed in the fiber. When the optical fiber is in a twisted state, the refractive index of the optical fiber changes due to the stress-optical effect, which changes the output power of the POF and also improves the sensitivity of the sensor to temperature and humidity changes.

[0064] Preferably, the length, width, and height of the temperature and humidity sensor 4 are 50*20*10mm. A slot is reserved in the middle of the temperature and humidity sensor base to form an exposed area of the temperature and humidity sensor optical fiber, with a length of 10mm and a width of 20mm, and the two optical fibers are 5mm apart. In use, the side of the sensor with the slot is in direct contact with the human body, and the changes in the refractive index of the optical fiber caused by the surface temperature and humidity of the human body are used to obtain temperature and humidity information of the measurement site.

[0065] As shown in Figure 11 The flexible pressure sensor 3 is arranged in the middle of the orthosis body 1, and the muscle deformation sensor 2 and the temperature and humidity sensor 4 are arranged on both sides or one side of the orthosis body 1. The flexible pressure sensor has a large overall size and is arranged on the back of the patient to detect the pressure between the patient and the scoliosis orthosis. The muscle deformation sensor has a small overall size and is generally arranged on both sides of the body. The physician selectively arranges the muscle deformation sensor on one side or both sides according to the specific situation, and this paper takes the single-sided case as an example. The muscle deformation sensor is arranged on one side of the patient to monitor whether the patient's muscle has abnormal deformation. The temperature and humidity sensor is similar to the muscle deformation sensor and is also selectively arranged on the patient's detection site to monitor whether the patient's affected area has temperature abnormalities.

[0066] As shown in Figure 12As shown, the present application also provides an intelligent wearing management system of a fiber-optic sensing-based scoliosis orthosis, comprising a fiber-optic demodulator 9, an upper computer 10, a data display module 11, an alarm module 12, and a multi-modal data module 13. The fiber-optic demodulator 9 is used to receive the muscle deformation, pressure, humidity, and temperature data monitored by the muscle deformation sensor 2, the flexible pressure sensor 3, and the temperature and humidity sensor 4, and transmit the data to the upper computer 10 after photoelectric conversion processing by the fiber-optic demodulator 9. The multi-modal data module 13 is used to integrate and analyze the different forms of data transmitted by the fiber-optic demodulator 9. The upper computer 10 is used to process the data transmitted by the fiber-optic demodulator 9. The output data of the fiber-optic demodulator 9 and the calibration data of the corresponding muscle deformation, pressure, humidity, and temperature collected by the commercial sensor are input into the regression algorithm for human health monitoring, a mapping model of the fiber-optic sensing data and the corresponding physical quantity is established, the health status of the human body is monitored and demodulated, and the results are uploaded to the data display module 11. The data display module 11 includes one or more of a mobile phone terminal, a computer terminal, or a web page terminal, and is used to receive and display the data transmitted by the upper computer 10. The alarm module 12 is used to alarm and remind according to the pre-set muscle deformation range, pressure range, humidity, and temperature red line.

[0067] The mobile phone terminal of the data display module includes a doctor APP and a patient APP. The doctor APP will alarm and remind according to the pre-set pressure range, humidity, and temperature red line. When the pressure is insufficient, the patient is reminded to tighten the buckle. When the pressure is too large, the patient is reminded to adjust the posture and loosen the buckle in time. When the local humidity is too large and there is a risk of skin damage, the patient is reminded to clean and wipe the local area in time or to arrange and change the close-fitting clothes, etc. When the local temperature is too high, the patient is reminded to appropriately adjust the buckle and body position, so as to avoid damage. The working principle of the intelligent wearing management system of the fiber-optic sensing-based scoliosis orthosis of the present application includes the following:

[0068] Firstly, the patient's body sign parameters and 3D printing technology can be used to customize a personalized orthosis for each patient, thereby improving the adaptability of the orthosis and the comfort of the patient. The muscle deformation sensor, the flexible pressure sensor, and the temperature and humidity sensor are arranged at appropriate positions of the scoliosis orthosis according to the doctor's suggestion.

[0069] Data acquisition and processing: The muscle deformation sensor, flexible pressure sensor, and temperature and humidity sensor are arranged at appropriate positions of the scoliosis orthosis. The signals of the three sensors are input into the optical fiber demodulator through channels, and the data can be obtained by photoelectric conversion of the demodulator and uploaded to the upper computer. The carrier of the multi-modal data module is the MATLAB program, the multi-modal data module can integrate and analyze different forms of data, and the carrier of the data fusion module is the MATLAB program. The data fusion module can provide more comprehensive information by combining multiple data types, thereby significantly improving the accuracy and robustness of the data. In the upper computer, the measured pressure / muscle deformation / temperature and humidity data are mapped by using a regression algorithm, and the measured data and the deformation signal are input into the regression algorithm for human health monitoring, and the health status of the human body is monitored and demodulated.

[0070] Dynamic feedback adjustment: The orthotist gives a reasonable three-point force threshold range according to the pressure size and distribution of the patient wearing the orthosis with the system for the first time, and sets it from the doctor's end APP according to the scoliosis correction condition of the X-ray film before and after wearing. When the expected correction effect is lower than expected and the pressure is small, the patient is required to gradually tighten the abdominal fixing belt (every 2mm one grid slot is used for fixing) to a reasonable pressure range; when the expected correction effect meets the expectation, the upper limit of the pressure is set to prevent damage caused by excessive pressure. The system will monitor the pressure change for 24 hours, and alarm when it is below the bottom line or above the high line of the set threshold range.

[0071] Remote monitoring: Through the Bluetooth and WIFI wireless transmission module, the data is uploaded to the cloud and the mobile phone end to provide the data of the daily continuous wearing time, pressure range fluctuation and other data under the wearing of the orthosis. It can be transmitted to the parent / doctor end in real time, and the parent / doctor can remotely monitor the correction force of the patient and adjust the treatment plan as needed.

[0072] Local pressure too large / small, humidity and temperature too high reminder: In order to ensure that the patient wears the orthosis effectively, safely and comfortably, the APP will alarm and remind according to the pre-set pressure range, humidity and temperature red line. When the pressure is insufficient, the patient is reminded to tighten the buckle; when the pressure is too large, the patient is reminded to adjust the posture and loosen the buckle in time; when the local humidity is too large and there is a risk of skin damage, the patient is reminded to clean and wipe the local part in time or arrange and change the close-fitting clothes, etc.; when the local temperature is too high, the patient is reminded to appropriately adjust the buckle and body position, so as to avoid injury.

[0073] The above is only a specific embodiment of the present application, it should be pointed out that any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application, and the rest of the prior art is not described in detail.

Claims

1. A fiber optic sensor based scoliosis orthosis, characterized by: The orthosis body (1) is internally provided with a muscle deformation sensor (2) for monitoring muscle deformation, a flexible pressure sensor (3) for monitoring pressure, and a temperature and humidity sensor (4) for monitoring temperature and humidity; The muscle deformation sensor (2) comprises a muscle deformation sensor base (21) and a muscle deformation sensor optical fiber (22) located inside the muscle deformation sensor base (21); the muscle deformation sensor optical fiber (22) comprises two sections of sinusoidal section optical fiber (221) and three sections of circular arc optical fiber (222) connected in sequence between the two sections of sinusoidal section optical fiber (221); The flexible pressure sensor (3) comprises a flexible pressure sensor base (31) and a flexible pressure sensor optical fiber (32) located inside the flexible pressure sensor base (31); the flexible pressure sensor optical fiber (32) comprises four sections of first circular arc optical fiber (321) and three sections of second circular arc optical fiber (322), the first circular arc optical fiber (321) and the second circular arc optical fiber (322) are alternately connected, and the setting angle and radius of the first circular arc optical fiber (321) and the second circular arc optical fiber (322) of the flexible pressure sensor optical fiber (32) are different; The temperature and humidity sensor (4) comprises a temperature and humidity sensor base (41) and a temperature and humidity sensor optical fiber (42) penetrating through the inside of the temperature and humidity sensor base (41), the temperature and humidity sensor base (41) is provided with a top-opened groove (43), the groove (43) is used for the temperature and humidity sensor optical fiber (42) to form an exposed area of the temperature and humidity sensor optical fiber (42); the temperature and humidity sensor optical fiber (42) comprises a first straight optical fiber (421) and a second straight optical fiber (422), and a humidity-sensitive material layer (44) is covered on the first straight optical fiber (421) or the second straight optical fiber (422) in the exposed area.

2. The optical fiber sensing based scoliosis orthosis of claim 1, wherein: The driving function of the sinusoidal section optical fiber (221) of the muscle deformation sensor optical fiber (22) is: In the formula, x is the horizontal coordinate value in the coordinate system, and y is the vertical coordinate value in the coordinate system.

3. The fiber optic sensor based scoliosis orthosis of claim 1, wherein: The radius of the circular arc optical fiber (222) of the muscle deformation sensor optical fiber (22) is 8.5 mm; the angle of the circular arc optical fiber (222) located in the middle of the muscle deformation sensor optical fiber (22) is 270°, and the angle of the circular arc optical fiber (222) located at both ends is 240°.

4. A fibre optic sensing based scoliosis orthosis according to claim 1 or 2 or 3, wherein: The first circular arc optical fiber (321) of the flexible pressure sensor optical fiber (32) is a circular arc optical fiber with an angle of 120° and a radius of 2 mm; The second circular arc optical fiber (322) is a circular arc optical fiber with an angle of 240° and a radius of 10 mm.

5. The optical fiber sensing based scoliosis orthosis according to claim 1 or 2 or 3, wherein: The first straight optical fiber (421) and the second straight optical fiber (422) pass through the temperature and humidity sensor base (41) and are fixed at a torsion angle of 15°.

6. The fiber optic sensor based scoliosis orthosis of claim 5, wherein: The first straight optical fiber (421) or the second straight optical fiber (422) located in the exposed area is provided with a bare part, and the moisture-sensitive material layer (44) covers the bare part of the first straight optical fiber (421) or the second straight optical fiber (422).

7. The fiber optic sensor based scoliosis orthosis of claim 1 or 2 or 3, wherein: The back of the orthosis body (1) is provided with a mounting groove (5) for placing circuit hardware; a plurality of bandage mounting holes (6) for the bandage to pass through are arranged at the lengthwise ends of the orthosis body (1), and a plurality of air holes (7) and a through hole (8) for the sensor to pass through are also arranged on the orthosis body (1).

8. The fiber optic sensor based scoliosis orthosis of claim 1 or 2 or 3, wherein: The flexible pressure sensor (3) is arranged in the middle of the orthosis body (1), and the muscle deformation sensor (2) and the temperature and humidity sensor (4) are arranged on the two sides or one side of the orthosis body (1) respectively.

9. An intelligent wear management system for a fiber optic sensor based scoliosis orthosis according to any one of claims 1 to 8, characterized in that: The system comprises a fiber demodulator (9), a host computer (10), a data display module (11) and an alarm module (12). The fiber demodulator (9) is used for receiving the muscle deformation, pressure, humidity and temperature data monitored by the muscle deformation sensor (2), the flexible pressure sensor (3) and the temperature and humidity sensor (4), and transmitting the data to the host computer (10) after photoelectric conversion processing by the fiber demodulator (9). The host computer (10) is used for data processing of the data transmitted by the fiber demodulator (9), and the output data of the fiber demodulator (9) is input into the regression algorithm for human health monitoring together with the calibration data of muscle deformation, pressure, humidity and temperature, so as to establish a mapping model of fiber sensing data and corresponding physical quantities, monitor and demodulate the health status of human body, and upload the results to the data display module (11). The data display module (11) comprises one or more of a mobile phone terminal, a computer terminal or a web terminal, and is used for receiving and displaying the data transmitted by the host computer (10). The alarm module (12) is used for alarm reminding according to the pre-set muscle deformation range, pressure range, humidity and temperature red line.

10. The intelligent wear management system for a fiber optic sensor based scoliosis orthosis of claim 9, wherein: It also includes a multi-modal data module (13) for integrating and analyzing different forms of data transmitted by the fiber demodulator (9).

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