Intelligent Bluetooth rehabilitation training device for exercising lower limbs of patient with knee osteoarthritis

Abstract

The invention provides an intelligent Bluetooth rehabilitation training device for lower limb exercise of a patient with knee osteoarthritis, which comprises a bottom shell, a pressed bearing surface is arranged on the bottom surface of the bottom shell, and a weighing sensor is mounted in the bottom shell through a fixing screw and a screw hole; an LCD display, a control unit board, a Bluetooth module, a voice broadcast module, a micro loudspeaker, an electronic buzzer, a charging module and a rechargeable battery are further arranged in the bottom shell, and the bottom shell and the thickening module are fixed through the matching effect of the rotating female buckle and the rotating male buckle. The knee osteoarthritis lower limb muscle exerciser is used for exercising lower limb muscles of a patient suffering from knee osteoarthritis, during use, the lower limb muscles of the patient continuously and actively exert force to extrude the two knee joints, the sensor converts pressure signals into electric signals after being pressed, and the signals generated after processing are displayed through the LCD and can be dynamically known in real time; and on the other hand, serial data are output to the Bluetooth module through the I / O port, and the Bluetooth module wirelessly uploads the data to an intelligent terminal, so that operation is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of medical lower limb training equipment, and in particular relates to an intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis. Background Art

[0002] Knee osteoarthritis (KOA) is one of the most common degenerative diseases that cause disability in the elderly. A survey showed that by the end of 2017, the prevalence of KOA in China was as high as 18%, of which 19% were female and 11% were male. The overall trend was that the prevalence of females was significantly higher than that of males, and the total number of patients exceeded 200 million. The pathogenesis of KOA involves multiple fields such as biochemistry and biomechanics.

[0003] At present, the clinical treatment of KOA mainly includes basic treatment (health education, exercise therapy, physical therapy, mobility support), drug therapy (analgesics, intra-articular injection drugs, slow-acting drugs to relieve arthritis symptoms, anti-anxiety drugs, Chinese patent medicines), restorative treatment (joint cleaning, cartilage repair, high tibial osteotomy, fibula settlement) and reconstructive treatment (joint replacement). Among them, drug treatment requires long-term medication, which may cause more side effects to the body and poor patient compliance, especially intra-articular injection of cortisol hormones or sodium hyaluronate, which can improve the symptoms of KOA patients in the short term, but the long-term effect is not ideal; restorative treatment and reconstructive treatment are both surgical treatments, with corresponding surgical complications, and are suitable for patients with mid- and late-stage KOA. Basic treatment is a primary and secondary preventive measure for KOA treatment. Therefore, how to carry out effective basic treatment in the early and middle stages of KOA is a hot issue in the field of KOA research.

[0004] The latest research shows that the imbalance of lower limb muscle strength, especially the muscles around the knee joint, may be the initiating factor of KOA. The occurrence of muscle imbalance and the force line deviation of the lower limbs of the human body are mutually causal, forming a vicious cycle. Therefore, by improving muscle imbalance, correcting incorrect biomechanical patterns, and correcting the force line of the lower limbs, it can effectively relieve the knee pain of KOA patients and significantly delay the progression of KOA. At present, there is a lack of rehabilitation training equipment for active lower limb muscle training for patients with knee osteoarthritis. This equipment can correct the force line of the lower limbs through active exercise while adjusting muscle imbalance, thereby interrupting the vicious cycle of muscle imbalance and lower limb force line deviation.

[0005] Most of the current rehabilitation trainers are aimed at unilateral lower limb strength training, and do not have the function of displaying and recording data such as rehabilitation data and duration. Users lack digital quantification of the strength and duration of lower limb muscle force during the rehabilitation process. The lack of data records makes it impossible to fully analyze the effect trend of rehabilitation training.

[0006] Based on this, an intelligent Bluetooth rehabilitation trainer for lower limb exercise in patients with knee osteoarthritis was proposed. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide an intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: an intelligent Bluetooth rehabilitation trainer for lower limb exercise of patients with knee osteoarthritis, comprising a bottom shell, the bottom surface of which is provided with a pressure bearing surface, and a weighing sensor is installed in the bottom shell through fixing screws and screw holes;

[0009] The bottom shell is also provided with an LCD display, a control unit board, a Bluetooth module, a voice broadcast module, a micro speaker, an electronic buzzer, a charging module and a rechargeable battery;

[0010] The weighing sensor is arranged in the central area of ​​the bottom shell, the control unit board, the Bluetooth module and the voice broadcast module are arranged in the area of ​​the bottom shell near the top of the weighing sensor, the micro speaker, the electronic buzzer and the charging module are arranged in the area of ​​the bottom shell near the side end of the weighing sensor, the rechargeable battery is arranged in the area of ​​the bottom shell near the bottom end of the weighing sensor, and the LCD display is arranged in the side plane of the bottom shell;

[0011] The bottom shell and the thickening module are fixed by the cooperation of a rotating female buckle and a rotating male buckle.

[0012] As a further illustration of the present invention, the weighing sensor is specifically a resistive strain weighing sensor.

[0013] As a further illustration of the present invention, a Type-C charging port and a volume adjustment button are also provided on the bottom shell.

[0014] As a further explanation of the present invention, fixing rings are respectively installed on both sides of the bottom shell, and an elastic fixing belt is installed on one of the fixing rings. When the trainer needs to be fixed, the free end of the elastic fixing belt passes through the other fixing ring, is folded back, and is adjusted and fixed using Velcro.

[0015] As a further illustration of the present invention, the output end of the weighing sensor is connected to the control unit board signal, the LCD display is connected to the control unit board signal, the output end of the control unit board is connected to the LCD display signal on one hand, and the control unit board is connected to the Bluetooth module signal through the I / O input / output port on the other hand;

[0016] The input end of the voice broadcast module is connected to the control unit board by signal, and the output end of the voice broadcast module is electrically connected to the micro speaker; the input end of the electronic buzzer is connected to the voice broadcast module by signal.

[0017] As a further illustration of the present invention, a sound outlet hole is also provided on the bottom shell.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. The present invention is used for lower limb muscle training of patients with knee osteoarthritis, wherein the bottom shell or the thickened module connected to the bottom shell is attached and fixed to one knee joint, and the pressure-bearing surface faces the inner side of the other knee joint. The patient's lower limb muscles continuously and actively exert force to squeeze the two knee joints. After the pressure-bearing surface is subjected to pressure, it is directly transmitted to the resistive strain weighing sensor through the fixing screw. The sensor converts the pressure signal into an electrical signal, which is converted into a digital signal by the A / D conversion module after amplification and filtering. The digital signal is processed by the control circuit module, and then the generated signal is displayed on the LCD display on the one hand, so that the user can dynamically understand the size and duration of the force applied to the lower limb muscles in real time; on the other hand, serial data is output to the Bluetooth module through the I / O port, and the Bluetooth module wirelessly uploads the data to the smart terminal, which is convenient for operation.

[0020] 2. The present invention adjusts the thickness of the present invention during use by adding or removing thickening modules, and can be used for lower limb muscle imbalance rehabilitation training for patients at different stages of knee osteoarthritis, with different strength training requirements, and with different degrees of knee joint force line misalignment.

[0021] 3. The present invention is fixed to the inner side of the knee joint of one side of the patient through an elastic fixing belt. The elastic fixing belt maintains and adjusts the tightness during fixation through the elasticity of the fixing belt and the Velcro adhesive part, so as to avoid the problem of loosening and falling caused by deformation when the lower limb muscles exert force. The operation is simple.

[0022] 4. The present invention can preset intelligent programs and can intelligently broadcast rehabilitation training data through a micro-speaker, including reminding the user to start muscle exertion, the intensity and duration of muscle exertion, and reminding the user to start resting; the electronic buzzer can vibrate and cooperate with the speaker to remind the user to use the device of the present invention more scientifically and reasonably.

[0023] 5. The present invention restores the lower limb muscles to a balanced state and the force lines of the lower limbs to normal through real-time dynamic data display, long-term effective data recording, rehabilitation exercise monitoring, and effective trend analysis. It is simple to operate and has obvious effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a side view of the overall structure of the present invention;

[0026] Figure 3 It is another side view of the overall structure of the present invention;

[0027] Figure 4 It is a bottom view of the overall structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the thickening module of the present invention.

[0029] Description of reference numerals:

[0030] 1-pressure bearing surface; 2-bottom shell; 3-weighing sensor; 4-LCD display; 5-control unit board; 6-Bluetooth module; 7-voice broadcast module; 8-micro speaker; 9-electronic buzzer; 10-charging module; 11-rechargeable battery; 12-Type-C charging port; 13-volume adjustment button; 14-fixing ring; 15-elastic fixing belt; 16-fixing screw; 17-screw hole; 18-thickening module; 19-rotating female buckle; 20-rotating male buckle; 21-sound outlet hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-5 As shown, the present invention provides a technical solution: an intelligent Bluetooth rehabilitation trainer for lower limb exercise of patients with knee osteoarthritis, comprising a bottom shell 2, wherein the bottom surface of the bottom shell 2 is provided with a pressure bearing surface 1, and a weighing sensor 3 is installed in the bottom shell 2 through a fixing screw 16 and a screw hole 17; the weighing sensor 3 is specifically a resistive strain weighing sensor, which is composed of an elastomer and a resistive strain gauge. The elastic body is subjected to force to generate deformation which is transmitted to the strain gauge, thereby causing the strain gauge to produce a change in resistance value.

[0033] The bottom shell 2 is also provided with an LCD display 4, a control unit board 5, a Bluetooth module 6, a voice broadcast module 7, a micro speaker 8, an electronic buzzer 9, a charging module 10 and a rechargeable battery 11;

[0034] Among them, the weighing sensor 3 is arranged in the central area of ​​the bottom shell 2, the control unit board 5, the Bluetooth module 6 and the voice broadcast module 7 are arranged in the bottom shell 2 near the top area of ​​the weighing sensor 3, the micro speaker 8, the electronic buzzer 9 and the charging module 10 are arranged in the side end area of ​​the bottom shell 2 near the weighing sensor 3, the rechargeable battery 11 is arranged in the bottom shell 2 near the bottom end area of ​​the weighing sensor 3, and the LCD display 4 is arranged in the side plane of the bottom shell 2; the bottom shell 2 is also provided with a Type-C charging port 12 and a volume adjustment button 13.

[0035] The bottom shell 2 and the thickening module 18 are fixed together by the cooperation of the rotating female buckle 19 and the rotating male buckle 20 .

[0036] Fixing rings 14 are respectively installed on both sides of the bottom shell 2, and an elastic fixing belt 15 is installed on one of the fixing rings 14. When the trainer needs to be fixed, the free end of the elastic fixing belt 15 passes through the other fixing ring 14 and is folded back and adjusted and fixed using Velcro.

[0037] The output end of the weighing sensor 3 is connected to the control unit board 5 by signal, and the LCD display 4 is connected to the control unit board 5 by signal. The output end of the control unit board 5 is connected to the LCD display 4 by signal, and the control unit board 5 is connected to the Bluetooth module 6 by signal through the I / O input / output port.

[0038] The input end of the voice broadcast module 7 is signal-connected to the control unit board 5 , and the output end of the voice broadcast module 7 is electrically connected to the micro speaker 8 ; the input end of the electronic buzzer 9 is signal-connected to the voice broadcast module 7 .

[0039] The bottom shell 2 is also provided with a sound outlet hole 21 .

[0040] When in use, the thickness of the trainer is adjusted by adding or removing the thickening module 18, and it is fixed to the inner side of the patient's knee joint on one side through the elastic fixing belt 15. One end of the elastic fixing belt 15 is fixed to the fixing ring 14 at the 6 o'clock position. When fixing is required, the free end of the elastic fixing belt 15 passes through the fixing ring 14 at the 12 o'clock position, is folded back, and then adjusted and fixed with Velcro. After fixing is completed, the bottom surface of the bottom shell 2 or the bottom surface of the thickening module 18 is attached to the inner side of the knee joint, and the pressure bearing surface 1 faces the inner side of the other knee joint.

[0041] When the user's lower limb muscles continuously exert force to squeeze the device, the device is automatically powered on and turned on, and the pressure bearing surface 1 transmits the received force to the resistive strain weighing sensor 3, and the weighing sensor 3 converts the pressure signal into an analog mixed electric signal through deformation, and the analog mixed electric signal is input into the MCU in the control unit board 5, and after amplification and filtering, it is converted into a digital signal by the A / D conversion module, and the digital signal is processed by the control circuit module, and then the generated signal;

[0042] On the one hand, the pressure intensity and the continuous force time are dynamically displayed through the LCD display 5, and on the other hand, the serial data is output to the Bluetooth module 6 through the I / O port. The Bluetooth module 6 wirelessly uploads the recorded data to the mobile smart terminal, which is specifically a mobile phone or computer that can be connected via Bluetooth, for storage and analysis.

[0043] At the same time, the data is transmitted to the voice broadcast module 7 through program settings, and the voice broadcast module 7 converts the digital signal into an electrical signal and transmits it to the micro speaker 8 and the electronic buzzer 9, and intelligently reminds the user of lower limb muscle rehabilitation training through voice broadcast and buzzing vibration. The volume can be manually adjusted through the volume adjustment button 13.

[0044] Among them, the resistive strain weighing sensor has a measurement range of 0-75kg, an accuracy level of C1, a sensitivity of 1.6±0.2mV / V, an operating temperature range of -10℃~+40℃, and a protection level of IP66.

[0045] The elastic fixing belt 15 maintains and adjusts the tightness during fixation through the elasticity of the fixing belt and the Velcro adhesive part, so as to avoid the problem of loosening and falling of the device of the present invention when the muscles are deformed during rehabilitation training, and the operation is simple.

[0046] It is suitable for patients with different KOA disease segments, different strength training needs, and different degrees of knee joint force line malalignment to conduct lower limb muscle imbalance rehabilitation training.

[0047] After being effectively fixed to the user's knee joint, the user's bilateral lower limb muscles continuously and actively exert force to squeeze the inner side of the bilateral knee joints to exercise the quadriceps, biceps femoris, tensor fasciae latae, adductor muscles, hamstrings, etc. Through long-term effective data recording, rehabilitation exercise monitoring, and effective trend analysis, the lower limb muscles are restored to a balanced state, and the lower limb force line is restored to normal after long-term regular rehabilitation training. The present invention fills the gap in the field of training equipment for the rehabilitation of lower limb muscle strength imbalance, and provides a new concept intelligent rehabilitation trainer for improving symptoms for patients with knee osteoarthritis of different disease degrees.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent Bluetooth rehabilitation trainer for lower limb exercise for patients with knee osteoarthritis, characterized by: It comprises a bottom shell (2), the bottom surface of the bottom shell (2) is provided with a pressure bearing surface (1), and a weighing sensor (3) is installed in the bottom shell (2) via fixing screws (16) and screw holes (17); The bottom shell (2) is also provided with an LCD display (4), a control unit board (5), a Bluetooth module (6), a voice broadcast module (7), a micro speaker (8), an electronic buzzer (9), a charging module (10) and a rechargeable battery (11); The weighing sensor (3) is arranged in the central area of ​​the bottom shell (2); the control unit board (5), the Bluetooth module (6) and the voice broadcast module (7) are arranged in the bottom shell (2) in an area close to the top of the weighing sensor (3); the micro speaker (8), the electronic buzzer (9) and the charging module (10) are arranged in the bottom shell (2) in an area close to the side end of the weighing sensor (3); the rechargeable battery (11) is arranged in the bottom shell (2) in an area close to the bottom end of the weighing sensor (3); and the LCD display (4) is arranged in the side plane of the bottom shell (2); The bottom shell (2) and the thickening module (18) are fixed together through the cooperation of a rotating female buckle (19) and a rotating male buckle (20).

2. The intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis according to claim 1, characterized in that: The weighing sensor (3) is specifically a resistive strain weighing sensor.

3. The intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis according to claim 1, characterized in that: The bottom shell (2) is also provided with a Type-C charging port (12) and a volume adjustment button (13).

4. The intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis according to claim 1, characterized in that: Fixing rings (14) are respectively installed on both sides of the bottom shell (2), and an elastic fixing belt (15) is installed on one of the fixing rings (14). When the training device needs to be fixed, the free end of the elastic fixing belt (15) passes through the other fixing ring (14), is folded back, and is adjusted and fixed using Velcro.

5. The intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis according to claim 1, characterized in that: The output end of the weighing sensor (3) is connected to the control unit board (5) by signal, the LCD display (4) is connected to the control unit board (5) by signal, the output end of the control unit board (5) is connected to the LCD display (4) by signal, and the control unit board (5) is connected to the Bluetooth module (6) by signal through an I / O input / output port; The input end of the voice broadcast module (7) is signal-connected to the control unit board (5), and the output end of the voice broadcast module (7) is electrically connected to the micro speaker (8); the input end of the electronic buzzer (9) is signal-connected to the voice broadcast module (7).

6. The intelligent Bluetooth rehabilitation trainer for lower limb training of patients with knee osteoarthritis according to claim 1, characterized in that: The bottom shell (2) is also provided with a sound outlet hole (21).

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