Ankle joint rehabilitation device

Abstract

The utility model discloses an ankle joint rehabilitation device, and particularly relates to the ankle joint rehabilitation monitoring field, the ankle joint rehabilitation device comprises an air bag 1, the side surface of the air bag 1 is provided with an air bag 2, the air bag 1 and the air bag 2 are arranged in a C-shaped air bag shape, the air bag 1 sleeves the upper part of the ankle joint of a patient, and the air bag 2 sleeves the front part of the ankle joint; connecting sections are installed on the outer walls of the first air bag and the second air bag respectively. The first air bag and the second air bag provide an adjustable supporting structure, the pressure and the supporting strength can be adjusted in real time according to the rehabilitation progress of a patient, it is ensured that enough supporting is provided during initial rehabilitation, and the burden of an injured area is relieved; the heel clamping cover is used for providing fixation and protection and preventing secondary injury caused by movement in the rehabilitation process, meanwhile, the heel clamping cover cooperates with the first air bag and the second air bag, the movement range of the joints is allowed to be increased in the later rehabilitation process, the flexibility of the joints and recovery of muscle strength are promoted, and therefore the rehabilitation period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of ankle joint rehabilitation monitoring, and more specifically, to an ankle joint rehabilitation device. Background Art

[0002] Ankle rehabilitation is used to restore the function and mobility of the ankle joint and prevent long-term complications such as chronic pain, joint instability and re-injury. Through systematic rehabilitation training and monitoring, it can improve blood circulation, enhance muscle strength and ligament elasticity, and restore normal gait and movement patterns, thereby improving patients' quality of life and mobility, ensuring that they can safely return to daily activities and sports.

[0003] In traditional fixed braces or simple rehabilitation equipment, there is a lack of adaptive regulation of pressure and support strength, and real-time adjustments cannot be made according to the patient's rehabilitation progress and actual needs. This may lead to insufficient support in the initial rehabilitation and increase the burden on the injured area, thereby prolonging the rehabilitation period and increasing the risk of re-injury. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an ankle joint rehabilitation device, which solves the problems raised in the above-mentioned background technology by providing airbag 1, airbag 2 and a heel cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ankle joint rehabilitation device, comprising airbag 1, airbag 2 is installed on the side of airbag 1, airbag 1 and airbag 2 are arranged in a "C"-shaped airbag shape, one airbag is set on the upper part of the patient's ankle joint, and airbag 2 is set on the front part of the ankle joint, the outer walls of airbag 1 and airbag 2 are respectively installed with connecting sections, the two connecting sections are hinged or fixedly connected by a connecting piece, and the sides of airbag 1 and airbag 2 are provided with air inlets and outlets.

[0006] In a preferred embodiment, a heel cover is installed between the airbag 1 and the airbag 2 via an elastic rope segment, and the heel cover is used to be put on the heel of the patient.

[0007] In a preferred embodiment, a shoe insole is fixedly mounted on a side of the second airbag away from the heel cover.

[0008] In a preferred embodiment, a rehabilitation feedback system is further included, wherein the rehabilitation feedback system includes a sensor module, a microcontroller, a data processing module, a communication module, a dynamic adjustment module and a power management module;

[0009] The sensor module includes a blood flow sensor, a blood pressure sensor, a pressure sensor and a motion sensor; the motion sensor includes an accelerometer and a gyroscope; the blood flow sensor is installed on the surface of airbag 1 and airbag 2, and the blood flow sensor is in contact with the inner and outer skin of the ankle joint; the blood pressure sensor is installed inside airbag 1 and airbag 2, and the blood pressure sensor is in contact with the skin near the ankle joint; the pressure sensor is installed on the insole, the inner wall of airbag 1 and airbag 2, and the pressure sensor is in contact with the sole and the ankle joint skin; the accelerometer and gyroscope are installed inside the insole, airbag 1 and airbag 2;

[0010] The power management module includes a battery and a power management system, and the battery provides power supply to the rehabilitation feedback system through the power management system;

[0011] The microcontroller, communication module, battery and power management system are installed in airbag 1 or airbag 2 or heel card cover, and the data processing module is integrated in the microcontroller;

[0012] The dynamic adjustment module comprises a micro pump, and the micro pump is installed at the air inlet and outlet.

[0013] In a preferred embodiment, the rehabilitation feedback system further includes a user interface module, and the user interface module includes a mobile phone application and a user control interface.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By setting up airbag 1, airbag 2 and heel cover, airbag 1 and airbag 2 provide an adjustable support structure, which can adjust the pressure and support strength in real time according to the patient's rehabilitation progress, ensure sufficient support in the initial rehabilitation, and reduce the burden on the injured area; the heel cover is used to provide fixation and protection to prevent re-injury caused by activities during the rehabilitation process, and at the same time, it works in synergy with airbag 1 and airbag 2 to allow the range of motion of the joint to be increased in the later rehabilitation period, promote the recovery of joint flexibility and muscle strength, thereby shortening the rehabilitation cycle and reducing the risk of recurrence;

[0016] 2. The rehabilitation feedback system monitors data in real time through the sensor module, the microcontroller analyzes and provides feedback, and the dynamic adjustment module adjusts the support strength in real time according to the feedback, which solves the problem of lack of adaptive adjustment of traditional fixed braces, ensures sufficient support in the early stage, allows a larger range of motion in the later stage, promotes flexibility and strength recovery, shortens the rehabilitation cycle and reduces the risk of re-injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] The reference numerals in the accompanying drawings are: 1 air bag one, 2 air bag two, 3 connecting section, 4 heel cover, 5 elastic rope section, 6 insole, 7 connecting piece. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Refer to the instruction manual Figure 1 An ankle joint rehabilitation device according to an embodiment of the utility model comprises an airbag 1, an airbag 2 is installed on the side of the airbag 1, the airbag 1 and the airbag 2 are arranged in a "C"-shaped airbag shape, the airbag 1 is sleeved on the upper part of the patient's ankle joint, and the airbag 2 is sleeved on the front part of the ankle joint, that is, the position near the sole and the heel, and the specific position can be adjusted according to the injury situation, and the outer walls of the airbag 1 and the airbag 2 are respectively installed with a connecting section 3, and the two connecting sections 3 are hinged or fixedly connected by a connecting piece 7, wherein the connecting section 3 can be designed in a variety of different models, that is, different Different lengths can be used to adapt to different sizes of soles. If the connecting member 7 is in a hinged state, a universal joint or a universal joint bearing can be used to meet the rehabilitation process that requires ankle joint activity. When the connecting member 7 adopts a fixed mode, the angles of the two connecting sections 3 can be fixed. The angle shown in the figure is a standard 90-degree state. The actual rehabilitation process may include 45 degrees to 135 degrees. These can be produced in different models according to actual conditions and applied to different rehabilitation environments. The sides of the airbag 1 1 and the airbag 2 2 are provided with air inlets and outlets;

[0021] A heel cover 4 is installed between airbag 1 and airbag 2 via an elastic rope segment 5, and the heel cover 4 is used to be covered on the heel of the patient; a shoe insole 6 is fixedly installed on one side of airbag 2 2 away from the heel cover 4.

[0022] As a further solution, a rehabilitation feedback system is also included, which includes a sensor module, a microcontroller, a data processing module, a communication module, a dynamic adjustment module and a power management module;

[0023] The sensor module includes a blood flow sensor, a blood pressure sensor, a pressure sensor and a motion sensor; the motion sensor includes an accelerometer and a gyroscope; the blood flow sensor is installed on the surface of airbag 1 1 and airbag 2 2, and the blood flow sensor is in contact with the inner and outer skin of the ankle joint; the blood pressure sensor is installed inside the airbag 1 1 and airbag 2 2, and the blood pressure sensor is in contact with the skin near the ankle joint; the pressure sensor is installed on the insole 6, the inner wall of the airbag 1 1 and airbag 2 2, and the pressure sensor is in contact with the sole and ankle joint skin; the accelerometer and the gyroscope are installed inside the insole 6, the airbag 1 1 and the airbag 2 2;

[0024] The power management module includes a battery and a power management system, and the battery provides power supply to various modules of the rehabilitation feedback system through the power management system;

[0025] The microcontroller, the communication module, the battery and the power management system are installed in the airbag 1 1 or the airbag 2 2 or the heel card cover 4. The data processing module is integrated in the microcontroller or connected to an external computing device via Bluetooth / Wi-Fi. In addition, the communication module includes a wireless transmission module.

[0026] The dynamic adjustment module comprises a micro pump which is installed at the air inlet and outlet.

[0027] The rehabilitation feedback system also includes a user interface module, which includes a mobile phone application and a user control interface. The data collected and processed by the sensor is sent to the user's mobile phone application through the wireless transmission module. The mobile phone application displays blood flow, blood pressure, pressure distribution and motion analysis results in real time, and provides personalized rehabilitation suggestions and training plans. At the same time, users can view real-time data, adjust system parameters and set rehabilitation goals through the mobile phone application or directly through the user control interface on the device, thereby realizing comprehensive monitoring and management of the rehabilitation process.

[0028] The following are the steps for running the rehabilitation feedback system:

[0029] Step 1: Data Collection

[0030] The sensor module monitors blood flow, blood pressure, pressure distribution and motion data in real time. The blood flow sensor is installed on the surface of airbag 1 1 and airbag 2 2 and contacts the inner and outer skin of the ankle joint to monitor local blood flow. The blood pressure sensor is installed inside airbag 1 1 and airbag 2 2 and contacts the skin near the ankle joint to monitor local blood pressure. The pressure sensor is installed on the inner wall of the insole 6, airbag 1 1 and airbag 2 2 and contacts the sole and ankle skin to monitor pressure distribution. The motion sensor (accelerometer and gyroscope) is installed inside the insole 6, airbag 1 1 and airbag 2 2 to monitor the movement angle and speed of the ankle joint.

[0031] Step 2: Data processing

[0032] The microcontroller receives the data collected by the sensor and processes it; the pressure distribution is calculated by the algorithm, the formula is Where P a is the pressure, F is the force felt by the sensor, and A is the contact area of ​​the sensor; the Fourier transform is used to analyze the signal frequency components of the motion sensor to extract the gait and movement pattern; the blood flow change is analyzed based on the data of the blood flow sensor, and the formula is Q=v·A, where Q is the blood flow, V is the blood flow velocity, and A is the cross-sectional area of ​​the blood vessel;

[0033] Step 3: Dynamic Adjustment

[0034] According to the processed data, the microcontroller sends instructions to the dynamic adjustment module to control the micro pumps at the air inlet and outlet of airbag 1 and airbag 2. The micro pumps adjust the inflation and deflation of the airbags to achieve dynamic pressure adjustment to ensure that the airbags provide the best support. The formula is P a =P m +ΔP, where P a is the adjusted pressure, P m is the measured pressure, ΔP is the pressure adjustment according to the rehabilitation needs;

[0035] Step 4: Data transmission and feedback

[0036] The processed data is sent to an external computing device or the user's mobile phone application through a wireless transmission module. The user can view real-time data and rehabilitation feedback through the mobile phone application, including blood flow, blood pressure, pressure distribution and motion analysis results. The application generates personalized rehabilitation suggestions and training plans based on the data to help users adjust their rehabilitation training.

[0037] In addition, the process of using Fourier transform to analyze the frequency components of motion sensor signals to extract gait and movement patterns includes the following steps: First, motion sensors (such as accelerometers and gyroscopes) record acceleration and angular velocity data that change over time, which form time series signals; then, these signals are preprocessed, such as removing noise and baseline drift to ensure the purity and accuracy of the signal, which is usually achieved using filtering technology; next, the preprocessed time series signal is Fourier transformed to convert the time domain signal into a frequency domain signal. The Fourier transform decomposes the complex time signal into a series of sine waves of different frequencies, each of which has a specific frequency, amplitude and phase. The resulting spectrum shows the amplitude and phase of each frequency component in the signal; in the frequency domain, by observing By observing the spectrum, the main frequency components can be identified. Different gaits and movement patterns will show different frequency characteristics in the spectrum. For example, the main frequency components of walking are usually in the range of 1-2Hz, while the frequency components of running are higher. Feature parameters related to gait and movement patterns are extracted from the spectrum. These parameters include the frequency and amplitude of the main frequency components, the concentrated distribution of energy in the spectrum, etc. These feature parameters reflect the periodicity and movement intensity of the gait. Finally, pattern recognition algorithms (such as machine learning algorithms) are used to classify and identify different gaits and movement patterns according to the extracted frequency feature parameters. By training the model, automatic recognition and classification of real-time movement data can be achieved, helping to analyze the user's gait characteristics and movement status, thereby providing effective rehabilitation advice and guidance.

[0038] In addition, when wearing or using this product, first put airbag 1 and airbag 2 2 near the ankle, and the heel cover 4 fixes the ankle through the elastic rope segment 5. The C-shape of airbag 1 improves the convenience of wearing, and finally the whole is placed in rehabilitation shoes or large-sized shoes with insoles 6; in the attached figure of the specification, the sole of the foot may be lifted during the inflation process of airbag 2 2, and we can adopt two solutions to deal with it. The first one includes that the patient can use it in bed and use it together with relevant rehabilitation equipment; the second one includes that the rehabilitation shoes can be customized according to actual conditions, and shoes with a depression in the middle are selected for use. The depression is used to place the inflated airbag 2 2 to let the foot contact the shoe surface as much as possible; in addition, even in the process of lifting the sole of the foot, the airbag 2 2 can be allowed to slightly touch the ground or not touch the ground at all, and other auxiliary equipment exercises can be performed.

[0039] In addition, the blood flow sensor is used to monitor the blood flow around the ankle joint to evaluate local blood circulation; the blood pressure sensor is used to measure the blood pressure changes in the ankle joint area to help determine the impact of the airbag on blood circulation; the pressure sensor is used to monitor the pressure distribution of the sole and ankle joint to ensure support and comfort; the accelerometer is used to measure acceleration changes to analyze gait and exercise intensity; the gyroscope is used to measure angular velocity to help evaluate the rotational movement and stability of the ankle joint. Through the data from these sensors, the system can analyze the user's rehabilitation status and provide personalized rehabilitation guidance;

[0040] It should also be noted that Figure 1 The public content only shows the general style of the structure and is used as a reference for understanding the scheme. Figure 1 The installation location of the rehabilitation feedback system is not included. Due to the limited display of the picture, the microcontroller type solution cannot be clearly expressed in the structural drawings. Therefore, the installation location of each module of the rehabilitation feedback system shall be based on the text description and shall not affect the implementation of this solution.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ankle joint rehabilitation device, comprising an airbag (1), characterized in that: The side of the airbag 1 (1) is provided with the airbag 2 (2), and the airbag 1 (1) and the airbag 2 (2) are arranged in a "C"-shaped airbag shape. The airbag 1 (1) is sleeved on the upper part of the patient's ankle joint, and the airbag 2 (2) is sleeved on the front part of the ankle joint. The outer walls of the airbag 1 (1) and the airbag 2 (2) are respectively provided with a connecting section (3), and the two connecting sections (3) are hingedly or fixedly connected by a connecting piece (7). The sides of the airbag 1 (1) and the airbag 2 (2) are provided with air inlets and outlets.

2. An ankle joint rehabilitation device according to claim 1, characterized in that: A heel cover (4) is installed between the airbag 1 (1) and the airbag 2 (2) via an elastic rope segment (5), and the heel cover (4) is used to be covered on the heel of the patient.

3. An ankle joint rehabilitation device according to claim 2, characterized in that: A shoe pad (6) is fixedly mounted on the side of the second airbag (2) away from the heel cover (4).

4. The ankle joint rehabilitation device according to claim 3, characterized in that: Also included is a rehabilitation feedback system, which includes a sensor module, a microcontroller, a data processing module, a communication module, a dynamic adjustment module and a power management module; The sensor module comprises a blood flow sensor, a blood pressure sensor, a pressure sensor and a motion sensor; the motion sensor comprises an accelerometer and a gyroscope; the blood flow sensor is mounted on the surface of the first airbag (1) and the second airbag (2), and the blood flow sensor is in contact with the inner and outer skin of the ankle joint; the blood pressure sensor is mounted inside the first airbag (1) and the second airbag (2), and the blood pressure sensor is in contact with the skin near the ankle joint; the pressure sensor is mounted on the insole (6), the inner wall of the first airbag (1) and the second airbag (2), and the pressure sensor is in contact with the sole and the ankle joint skin; the accelerometer and the gyroscope are mounted inside the insole (6), the first airbag (1) and the second airbag (2); The power management module includes a battery and a power management system, and the battery provides power supply to the rehabilitation feedback system through the power management system; The microcontroller, communication module, battery and power management system are installed in airbag 1 (1) or airbag 2 (2) or heel cover (4), and the data processing module is integrated in the microcontroller; The dynamic adjustment module comprises a micro pump, and the micro pump is installed at the air inlet and outlet.

5. The ankle joint rehabilitation device according to claim 4, characterized in that: The rehabilitation feedback system also includes a user interface module, which includes a mobile phone application and a user control interface.

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