Visualized limb training device and method

Abstract

This invention discloses a visual limb training device and method. The device supports the affected limb through a support body, the angle monitoring module monitors the elevation angle, the control module compares the angle and generates instructions, and the light signal feedback module triggers light effect feedback. This accurately quantifies the training status and provides real-time visual prompts, solving the problem that existing devices cannot monitor and provide feedback in real time. It has the advantages of accurately monitoring the elevation angle of the affected limb and providing real-time light signal feedback.

Description

Technical Field

[0001] This invention relates to the field of medical and nursing device technology, specifically to a visual limb training device and method. Background Technology

[0002] In rehabilitation nursing practice, elevating the affected limb is a key measure to promote blood circulation and reduce postoperative swelling, but existing equipment faces multiple challenges in clinical application.

[0003] Traditional limb elevation tools such as pillows, sandbags, or simple supports only provide physical support and lack a fixed duration (e.g., 2 hours) for turning the patient. This makes them prone to pressure sores on the skin and prevents precise quantification of the limb elevation angle. Consequently, patients and healthcare professionals struggle to visually determine whether the medically recommended angle has been achieved, such as a specific range relative to the horizontal plane or heart level. This not only leads to a lack of standardized nursing procedures but can also negatively impact rehabilitation outcomes due to angle deviations. Furthermore, these devices completely lack real-time feedback mechanisms, making it easy for patients to experience limb slippage, insufficient elevation angle, or short maintenance duration during self-training. The inability to promptly detect changes in patient condition significantly reduces compliance and hinders the rehabilitation process.

[0004] Furthermore, existing solutions lack visual prompts, preventing patients from independently confirming whether their training has met standards, and making it difficult for nursing staff to remotely monitor the training status. This not only increases the complexity and workload of daily care but may also lead to training interruptions or poor results. More importantly, traditional equipment cannot record and intelligently analyze data during the training process, resulting in a lack of objective evidence for assessing rehabilitation effectiveness and hindering continuous optimization of nursing quality. Overall, this restricts the scientific and refined development of rehabilitation management. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and solve existing technical problems, this invention provides a visual limb training device and method, which has the advantages of accurately monitoring the elevation angle of the affected limb and providing real-time light signal feedback, thereby helping patients and medical staff to intuitively judge the training status, improve patient compliance, and ensure that rehabilitation training is achieved.

[0006] In a first aspect, embodiments of the present invention provide a visual limb training device, comprising: a support body having an ergonomic curved surface structure; an angle monitoring module disposed inside or on the surface of the support body; a control module electrically connected to the angle monitoring module; an optical signal feedback module electrically connected to the control module; and a power supply module for supplying power to the angle monitoring module, the control module, and the optical signal feedback module; wherein, the support body is used to support the limb; the angle monitoring module is used to monitor the elevation angle of the limb relative to a horizontal plane or the level of the heart, and transmit the elevation angle to the control module; the control module is used to receive the elevation angle, compare the elevation angle with an angle threshold, generate a control command based on the comparison result, and transmit the control command to the optical signal feedback module; the optical signal feedback module is used to receive the control command and, in response to the control command, trigger a light-emitting element to present different light effects.

[0007] In one embodiment, the comparison result is that the elevation angle reaches or exceeds an angle threshold, and the duration reaches a time threshold; accordingly, the light signal feedback module is specifically used to receive the control command and, in response to the control command, trigger the light-emitting element to present a first light effect mode, to indicate that the elevation of the affected limb is up to standard or the training is effective; or, the comparison result is that the elevation angle is below the angle threshold; accordingly, the light signal feedback module is specifically used to receive the control command and, in response to the control command, trigger the light-emitting element to present a second light effect mode, to indicate that the elevation of the affected limb is not up to standard or the training is interrupted, wherein the second light effect mode is different from the first light effect mode.

[0008] In one embodiment, the first light effect mode is a green light effect or a flowing light effect; the second light effect mode is a red light effect or is in an off state.

[0009] In one embodiment, the flowing light effect is a sequential lighting animation of light strips along a specific direction of the supporting body.

[0010] In one embodiment, the device further includes a wireless transmission module, which is communicatively connected to the control module and an external terminal; the wireless transmission module is used to send a reminder signal to the external terminal after the control module triggers the light-emitting element to present the second light effect mode for a set time.

[0011] In one embodiment, the angle monitoring module is a microelectromechanical system (MEMS) gyroscope or a high-precision angle sensor.

[0012] In one embodiment, the device further includes a pressure sensor embedded in the surface of the support body, the pressure sensor being electrically connected to the control module; the pressure sensor is used to identify whether the affected limb is stably placed on the support body.

[0013] In one embodiment, the bottom of the support body has a U-shaped structure, and the surface is covered with a removable cotton pad.

[0014] In one embodiment, the control module can set custom parameter values; the custom parameter values ​​include one of the following: angle threshold, time threshold, and set duration.

[0015] Secondly, embodiments of the present invention also provide a visualized method for training a limb with a diseased organ. The method includes: supporting the limb with a support body; monitoring the elevation angle of the limb relative to a horizontal plane or the level of the heart using an angle monitoring module, and transmitting the elevation angle to a control module; receiving the elevation angle, comparing the elevation angle with an angle threshold, generating a control command based on the comparison result, and transmitting the control command to an optical signal feedback module; and receiving the control command and responding to the control command by triggering a light-emitting element to present different light effects.

[0016] The visual limb training device and method provided in this invention supports the limb with a supporting body, monitors the elevation angle with an angle monitoring module, compares the angle and generates instructions with a control module, and triggers light effect feedback with an optical signal feedback module. This accurately quantifies the training status and provides real-time visual prompts, solving the problem that existing devices cannot monitor and provide feedback in real time. It has the advantages of accurately monitoring the elevation angle of the limb and providing real-time optical signal feedback. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the composition structure of the training device for the affected limb, as shown in Embodiment 1 of the present invention. Figure 2 This is a schematic diagram of the composition of another visualized training device for a affected limb according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the composition structure of another visualized training device for the affected limb according to an embodiment of the present invention; Figure 4 This is a visualization of the affected limb experience effect of the affected limb training device as an application example of the present invention; Figure 5 This is a flowchart illustrating the training method for the affected limb as described in an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0019] Traditional limb elevation care equipment suffers from drawbacks in clinical applications, including the inability to accurately quantify the elevation angle, lack of real-time feedback mechanisms, and absence of visual prompts. These issues lead to poor patient compliance, negatively impacting rehabilitation outcomes and increasing the difficulty of care. To address these problems, this invention proposes a visual limb training device. This device supports the affected limb using an ergonomically designed curved support structure. An angle monitoring module, located inside or on the surface of the support structure, monitors the elevation angle of the affected limb. The monitored elevation angle is transmitted to a control module, which compares it with a preset angle threshold and generates a control command based on the comparison result. This control command is then transmitted to a light signal feedback module, which responds to the command by triggering a light-emitting element to display different light effects, thus providing real-time, visual feedback on the training status. A power supply module provides stable power to all the aforementioned modules.

[0020] Figure 1 This is a schematic diagram of the structural composition of a visualized limb training device according to Embodiment 1 of the present invention. The present invention provides a visualized limb training device, such as... Figure 1 As shown, the device 10 includes a support body 101, an angle monitoring module 102, a control module 103, an optical signal feedback module 104, and a power supply module 105.

[0021] Specifically, the device 10 mainly includes: a support body 101 with an ergonomic curved structure, an angle monitoring module 102 disposed inside or on the surface of the support body 101, a control module 103 electrically connected to the angle monitoring module 102, an optical signal feedback module 104 electrically connected to the control module 103, and a power supply module 105 for supplying power to the angle monitoring module 102, the control module 103 and the optical signal feedback module 104.

[0022] Specifically, the support body 101 is used to support the affected limb. The support body 101 is designed with an ergonomic curved structure, and its main function is to provide stable and comfortable support for the affected limb, ensuring that the affected limb can maintain the correct posture during training, thereby providing a stable foundation for subsequent angle monitoring.

[0023] An angle monitoring module 102 is used to monitor the elevation angle of the affected limb relative to a horizontal plane or the level of the heart, and transmit the elevation angle to a control module 103. The angle monitoring module 102 is configured to monitor the elevation angle of the affected limb relative to a specific reference plane (e.g., a horizontal plane or the level of the heart) in real time. This angle monitoring module 102 can convert the monitored angle data into electrical signals and transmit them to the control module 103 for processing. Here, the elevation angle refers to the angle formed by the affected limb relative to a horizontal plane or the level of the heart when it is supported on a support body. This elevation angle is a key parameter for assessing whether the limb elevation training has met the standards.

[0024] The control module 103 receives the elevation angle, compares it with an angle threshold, generates a control command based on the comparison result, and transmits the control command to the optical signal feedback module 104. The control module 103 is electrically connected to the angle monitoring module 102 and the optical signal feedback module 104. The control module 103 receives elevation angle data from the angle monitoring module 102, performs preset logical operations, compares the received elevation angle with a preset angle threshold, and further generates a corresponding control command based on the comparison result, sending it to the optical signal feedback module 104. Here, the angle threshold refers to a preset reference angle value in limb elevation training. The elevation angle is compared with this angle threshold to determine whether the limb elevation meets the training requirements. The angle threshold can typically be preset by the control module 103 to be 15°~30° above the heart level.

[0025] A light signal feedback module 104 is used to receive the control commands and, in response to the control commands, trigger the light-emitting element to present different light effects. The light signal feedback module 104 is electrically connected to the control module 103. The light signal feedback module 104 receives control commands from the control module 103 and, in response to these commands, triggers its internal light-emitting element to present different light effects. These light effects are used to provide the user with visual feedback on the training status of the affected limb. Here, the control command is an electrical or data signal generated by the control module based on the comparison result of the elevation angle and the angle threshold. The control command is used to instruct the light signal feedback module to trigger the light-emitting element to present a specific light effect. The light-emitting element is the core component of the light signal feedback module, capable of emitting light of different colors, brightness, or patterns according to the received control commands, thereby achieving the visual feedback function. The light effect refers to the visual effect presented by the light-emitting element under different control commands, such as different colors, flashing frequencies, or flow patterns, used to intuitively indicate the training status of the affected limb.

[0026] It should be noted that, in this embodiment of the invention, the power module 105 is configured to provide a stable power supply to the angle monitoring module 102, the control module 103, and the optical signal feedback module 104, thereby ensuring the normal operation of the entire device.

[0027] In a specific application example, the support body 101 is designed with an ergonomic curved structure to support the affected limb. This curved structure can be designed according to the natural curvature of the human limb, for example, it can adopt various shapes such as arc, wave, or S-shape, to ensure that the affected limb receives uniform support when placed, thereby reducing local pressure and improving patient comfort. For example, it can be made of one-piece molded plastic or composite material, and its surface can be polished. Through its ergonomic curved structure, the affected limb can be stably placed on it, preventing slippage or displacement during training, thus ensuring the accuracy of monitoring and the safety of training.

[0028] An angle monitoring module 102 is disposed inside or on the surface of the support body 101 to monitor the elevation angle of the affected limb relative to the horizontal plane or the level of the heart, and transmits the monitored elevation angle to the control module 103. As one implementation, the angle monitoring module can be a tilt sensor, which determines the tilt angle of the support body by measuring the angle between the direction of gravity and its own axis, thus reflecting the elevation angle of the affected limb. This sensor can be fixed at a specific location on the support body, such as its central area or near the end of the affected limb. For example, when the affected limb is placed on the support body and raised, the angle monitoring module continuously collects angle data and transmits this data to the control module in real time via a wired connection, such as through an SPI or I2C bus.

[0029] The control module 103 is electrically connected to the angle monitoring module 102. It receives the elevation angle, compares it with a preset angle threshold, generates a control command based on the comparison result, and transmits the control command to the optical signal feedback module 104. For example, the control module can be a microcontroller unit (MCU) with a preset fixed angle threshold. When elevation angle data is received, the MCU performs a numerical comparison operation to determine whether the elevation angle reaches or exceeds the threshold. For example, the control module can perform an angle comparison every second and immediately generate and send a command based on the comparison result. The angle threshold can typically be preset by the control module 103 to be 15°~30° above the heart level.

[0030] The optical signal feedback module 104 is electrically connected to the control module 103, and is used to receive the aforementioned control commands and, in response to the control commands, trigger the light-emitting element to display different light effects. For example, when a control command is received, the light-emitting element can display one light effect, such as continuously lit white light; when another control command is received, the light-emitting element can display another light effect, such as continuously lit blue light. These switching effects are instantaneous, designed to provide direct visual feedback to the user. As one implementation, the optical signal feedback module can include a set of LEDs that can simply light up or turn off according to the received control commands, or display two preset colors.

[0031] The power module 105 is configured to provide a stable power supply to the angle monitoring module 102, the control module 103, and the optical signal feedback module 104. The power module 105 can be a built-in rechargeable battery pack or a DC power supply powered via an external adapter. Its output voltage and current are designed to meet the power consumption requirements of each module, ensuring stable operation of the entire device over extended periods.

[0032] The visual limb training device provided in this invention ensures stable support for the affected limb through its ergonomically designed support body, while the angle monitoring module enables precise quantification and real-time monitoring of the elevation angle. The control module intelligently compares the monitoring data and drives the light signal feedback module to provide real-time visual prompts with different light effects. Thus, this invention effectively solves the problems of inaccurate quantification of elevation angle, lack of real-time feedback, and absence of visual prompts in traditional nursing care, significantly improving the standardization, compliance, and effectiveness of limb training.

[0033] In some of the embodiments of the present invention described above, a light signal feedback module is proposed to trigger the light-emitting element to present different light effects. However, in this process, since the duration of the raised angle is not considered, the feedback mechanism may be inaccurate and unable to distinguish between training states that have achieved the target briefly and those that have achieved the target continuously. This results in the user not being able to accurately know whether the training is effective or interrupted, affecting compliance and rehabilitation effect.

[0034] Based on this, this embodiment of the invention further proposes a visual limb training device, wherein the comparison result is that the elevation angle reaches or exceeds an angle threshold, and the duration reaches a time threshold; correspondingly, the light signal feedback module 104 is specifically used to receive the control command and, in response to the control command, trigger the light-emitting element to present a first light effect mode, to indicate that the limb elevation is up to standard or the training is effective; or, the comparison result is that the elevation angle is below the angle threshold; correspondingly, the light signal feedback module 104 is specifically used to receive the control command and, in response to the control command, trigger the light-emitting element to present a second light effect mode, to indicate that the limb elevation is not up to standard or the training is interrupted. The second light effect mode is different from the first light effect mode. The angle threshold can typically be preset by the control module 103 to be 10°~30° above the heart level; the time threshold can typically be preset by the control module 103 to be adjustable for 15 minutes / 30 minutes.

[0035] In one application example, the comparison result refers to the judgment made by the control module after comparing the elevation angle of the affected limb with a preset angle threshold, and further comparing the duration for which the elevation angle continuously meets the condition with a preset time threshold. Its purpose is to ensure that the elevation of the affected limb not only reaches the specified angle instantaneously, but also can be maintained stably for a period of time, thereby avoiding misjudgments caused by short-term angle fluctuations and more accurately assessing the effectiveness and quality of training. Specifically, the control module can integrate a timing function. When the monitored elevation angle continuously reaches or exceeds the angle threshold, this timing function begins to accumulate time. Once the accumulated time reaches the preset time threshold, a satisfactory comparison result is output. Alternatively, the control module can periodically sample elevation angle data and use an algorithm to determine whether the elevation angle continuously meets the angle threshold condition within consecutive sampling periods, and calculate its duration.

[0036] The first light effect mode is a specific form of light signal representation used to visually indicate that the training of the affected limb has reached the expected standard or that the training is effective. Its purpose is to provide users with clear positive feedback, enhancing their confidence and adherence to training. For example, the first light effect mode can be represented by the light-emitting element emitting a stable blue light, or by emitting a slow, breathing-like white light.

[0037] In another application example, this comparison result refers to the control module's determination that the elevation angle of the affected limb has failed to reach a preset angle threshold. Its purpose is to promptly identify insufficient limb elevation or incorrect posture, allowing the user to quickly adjust their posture and avoid ineffective training. Specifically, the control module can compare the currently monitored elevation angle with the preset angle threshold in real time. Once it detects that the elevation angle is less than the threshold, it immediately outputs a comparison result indicating that the target has not been met.

[0038] The second light effect mode is a specific form of light signal display used to alert the user when training for the affected limb has not reached the expected standard or when training has been interrupted. Its function is to promptly remind the user of any abnormal training status, prompting them to adjust or restart the training to ensure its effectiveness. For example, the second light effect mode may manifest as a rapidly flashing yellow light from the light-emitting element, or as an intermittent light effect that turns off and on again.

[0039] Through the above technical solution, this invention further optimizes the accuracy and reliability of the feedback mechanism based on existing visual limb training devices. The control module no longer judges solely based on the instantaneous elevation angle, but introduces a condition of "duration reaching a time threshold." When the elevation angle of the affected limb reaches or exceeds the angle threshold, and the duration meets the time threshold, the light signal feedback module triggers the first light effect mode, accurately indicating to the user that the training has reached the target or is effective. This effectively avoids misjudgments caused by brief tremors of the affected limb or instantaneous achievement of the target, ensuring the authenticity and effectiveness of the feedback information. Conversely, when the elevation angle is below the angle threshold, the light signal feedback module immediately triggers the second light effect mode, promptly alerting the user that the training has not reached the target or has been interrupted. This feedback mechanism based on both angle and time judgments allows users to more accurately understand their training status, enhances training compliance, and effectively improves the quality and effectiveness of rehabilitation training.

[0040] In some embodiments of the present invention, a light effect mode is proposed to provide visual feedback to indicate the training status. However, in this process, the specific implementation of the light effect mode may not be clear or intuitive enough, making it difficult for users to quickly distinguish between the achieved and unachieved statuses, thus affecting the clarity of the feedback and training compliance.

[0041] Based on this, the embodiments of the present invention further propose that the first light effect mode is a green light effect or a flowing light effect; and the second light effect mode is a red light effect or is in an off state.

[0042] Specifically, the first lighting effect mode refers to the visual feedback presented by the light signal feedback module when the affected limb is raised to the target height or training is effective. This mode aims to clearly indicate the positive state of training to the user. Green lighting effect, as one implementation of the first lighting effect mode, utilizes the common perception that green is visually associated with positive meanings such as "passed," "correct," and "safe," to intuitively and quickly convey the achievement information. Besides a pure, constant green light, green lighting effects can also be presented through green flashing, green breathing lights, etc., to increase visual appeal and the intensity of information delivery. Flowing lighting effect, as another implementation of the first lighting effect mode, uses dynamic, continuously changing visual effects to indicate training achievement. For example, it can be presented through the sequential lighting of light strips to create a flowing water effect, or through animation effects such as the movement and diffusion of light points. This dynamic effect can effectively attract the user's attention and enhance the vividness and interest of the feedback, avoiding the monotony that static lighting effects may bring.

[0043] The second light effect mode refers to the visual feedback presented by the light signal feedback module when the affected limb elevation is not up to standard or training is interrupted. This mode aims to promptly alert the user to problems in training. The red light effect, as one implementation of the second light effect mode, leverages the common perception that red is visually associated with negative meanings such as "warning," "error," and "stop," to quickly and strongly warn the user that the current state does not meet the requirements. Besides a solid red light, the red light effect can also be presented through red flashing or a red breathing light to further enhance the warning effect. The off state, another implementation of the second light effect mode, means that the light signal feedback module is not emitting light. This state intuitively indicates that the device is inactive, training has stopped, or no effective standard has been met; its simplicity helps the user quickly understand that the current training is invalid or has been interrupted.

[0044] Through the above technical solution, the embodiments of the present invention effectively solve the problem of unintuitive light effect feedback by specifically defining the visual representation of the first and second light effect modes. When the affected limb is raised to the target height or training is effective, the light signal feedback module presents a green light effect or a flowing light effect. The green light effect utilizes the general correlation between color and active state to directly reinforce the user's perception of the target height; the flowing light effect enhances the vividness and attractiveness of the target state through dynamic visual effects, avoiding the monotony of static feedback. When the affected limb is not raised to the target height or training is interrupted, the light signal feedback module presents a red light effect or is in an off state. The red light effect is based on the principle of warning color and can quickly alert the user; the off state intuitively indicates no activity or cessation, simplifying the feedback form and reducing confusion. These specific definitions collectively improve the distinguishability of the feedback and the efficiency of user understanding, enabling patients to understand their training status more clearly and intuitively, thereby improving training compliance and rehabilitation effects.

[0045] In some embodiments of the present invention, a flowing light effect is proposed to indicate that the affected limb has been raised to the target height or that the training is effective. However, in its implementation, the specific implementation method of the flowing light effect is not clearly defined, which may lead to the light effect lacking directionality and dynamism, affecting the patient's intuitive recognition and feedback of the training status, thereby reducing training compliance and rehabilitation efficiency.

[0046] Based on this, the present invention further proposes that the flowing light effect is a sequential lighting animation of flowing light strips along a specific direction of the supporting body.

[0047] Flowing light effects refer to a dynamic visual effect that conveys information through continuous changes in the brightness, color, position, or pattern of light. Its implementation can be diverse. For example, it can be achieved by controlling the on / off sequence and time intervals of multiple independent light-emitting units (such as LED beads) to create a continuously moving visual perception; alternatively, it can be achieved by setting a light-guiding structure within a transparent or translucent material and coordinating it with dynamic changes in the light source to create a flowing light effect; or it can be achieved through projection technology, projecting pre-set dynamic light and shadow onto the surface of a supporting subject to achieve a flowing light effect. This type of light effect aims to provide intuitive visual cues, enhancing the attractiveness and comprehensibility of information delivery.

[0048] Here, "along a specific direction of the support body" refers to the dynamic change path of the flowing light effect corresponding to the geometry, structural features, or functional layout of the support body. Specifically, this specific direction can refer to the longitudinal axis of the support body, for example, extending from the proximal end to the distal end of the affected limb to simulate the direction of blood flow; it can also refer to the lateral curvature of the support body, for example, spreading from one side to the other to indicate the overall state of the affected limb; or it can be determined based on the contour of the area where the affected limb is placed or a preset indicator line. This design provides the light effect with clear spatial directionality, closely linking it to the support position of the affected limb and the training objective.

[0049] "Sequential lighting" refers to the activation (lighting up) of each light-emitting unit or segment that constitutes the flowing light effect, one by one or segment by segment, according to a preset sequence and time interval. This sequential control can be achieved in various ways. For example, it can be controlled by microcontroller programming, setting the on / off sequence and duration of each light-emitting unit to achieve a precise dynamic effect; it can also be achieved by a dedicated LED strip driver chip that automatically completes the sequential lighting after receiving control signals from the control module; or it can be achieved through analog circuit design, using RC charging and discharging methods to achieve a step-by-step lighting effect. By lighting up sequentially, a continuous visual sense of motion can be formed, thereby enhancing the dynamism and guiding nature of the light effect.

[0050] Flowing light strip animation is a form of lighting that simulates the dynamic effect of flowing water, typically composed of one or more strings of light-emitting diode (LED) light strips. Its working principle involves controlling the individual or segmented illumination of the light-emitting units within these LED strips to create a visual effect of continuously moving light. Specifically, programmable LED light strips can be used, with a control module sending data signals to precisely control the color and brightness of each LED, thus achieving complex flowing water animation effects. Alternatively, ordinary light strips composed of multiple independent LED beads connected in series or parallel can be used, with a control module sequentially controlling the on / off state of each LED bead through a multi-channel relay or transistor switching circuit to create a simple flowing water effect. Furthermore, light guide plates or diffusers can be placed above or below the light strip to create a soft, flowing sensation as the light propagates. This animation format aims to provide intuitive, dynamic, and engaging visual feedback, clearly indicating the training progress.

[0051] The above technical solution defines the flowing light effect as a sequential lighting animation along a specific direction of the supporting body, effectively solving the problem of insufficient intuitiveness and dynamism in light effect cues. When the affected limb is raised to or above an angle threshold and the duration reaches a time threshold, the light signal feedback module responds to the control command, triggering the light-emitting element to present this directional and dynamic first light effect mode. Specifically, "along a specific direction of the supporting body" ensures that the light effect matches the position of the affected limb, providing clear directional guidance so that the patient can clearly perceive the directional change in the raised angle. "Sequential lighting of the flowing light animation" creates a continuous visual effect through a dynamic lighting sequence, significantly enhancing the attractiveness and recognizability of the light effect. This concrete and dynamic visual feedback helps patients more intuitively and promptly confirm their training progress, avoiding training interruptions or misjudgments, thereby significantly improving patient training compliance and rehabilitation efficiency. Compared to vague or static light effects, the flowing light strip animation provided by this solution greatly optimizes the user experience with its unique dynamic aesthetics and clear directional guidance, making the training process more vivid and interesting, and further consolidating the effectiveness of limb elevation training.

[0052] In some of the embodiments of the present invention described above, a light signal feedback module is proposed to indicate that the affected limb has not been raised to the target or that the training has been interrupted. However, in this process, if the patient does not pay attention to or respond to the light signal prompt in time, the training interruption may continue without intervention, affecting the rehabilitation effect, and the nursing staff cannot know the status in real time to intervene.

[0053] Based on this, the present invention further proposes a visual training device for the affected limb, which effectively solves the above problems by introducing a wireless transmission module.

[0054] Figure 2This is a schematic diagram of the structural composition of another visualized training device for the affected limb according to an embodiment of the present invention. Figure 2 As shown, the device 20 also includes a wireless transmission module 201, which can communicate with the control module 103 and external terminals.

[0055] Specifically, the wireless transmission module 201 is a hardware component capable of enabling wireless data communication between devices. Its core function is to send and receive data via radio waves or other wireless media, thereby achieving remote information interaction. For example, the wireless transmission module can use Bluetooth technology, a short-range wireless communication standard suitable for point-to-point or point-to-multipoint connections between devices. It has advantages such as low power consumption, low cost, and easy integration, and can be used to transmit data to nearby external terminals such as smartphones and tablets. Alternatively, the wireless transmission module can also use Wi-Fi (Wireless Fidelity) technology, based on the IEEE 802.11 standard, providing a longer transmission distance and higher data transmission rate. It is suitable for transmitting data to external terminals such as remote servers or care stations via local area networks or the Internet, enabling broader monitoring and management. The communicative connection between the wireless transmission module and the control module and external terminals ensures smooth data flow, allowing the control module to transmit training status information to the wireless transmission module, which then sends it to the external terminal. The control module and the wireless transmission module can exchange data via a serial communication interface (such as UART, SPI, or I2C) to ensure that commands and data are transmitted accurately from the control module to the wireless transmission module. The wireless transmission module and external terminals can establish a connection through corresponding wireless communication protocols (such as Bluetooth, Wi-Fi, or TCP / IP) to achieve bidirectional data transmission.

[0056] The wireless transmission module 201 is used to send a reminder signal to an external terminal after the control module 103 triggers the light-emitting element to display the second light effect mode for a set duration. This function can automatically trigger an external intervention mechanism when the training of the affected limb fails to meet the target or is interrupted, and the duration of this situation exceeds the preset tolerance range. It makes up for the shortcomings of relying solely on local light signal feedback, which may be ignored, and ensures the effectiveness and safety of the training process. In specific implementation, the control module continuously monitors the elevation angle of the affected limb. Once the elevation angle is lower than the angle threshold, and the duration of this state exceeds the preset set duration, the control module generates a specific reminder instruction and sends it to the wireless transmission module through the internal communication interface. After receiving the instruction, the wireless transmission module immediately activates its wireless communication function and sends a data packet containing reminder information to a pre-configured external terminal (such as a caregiver's smartphone, tablet, or computer at the nursing station).

[0057] This invention, by introducing a wireless transmission module 201 and establishing a communicable connection between it and the control module 103 and an external terminal, effectively solves the problem of untimely detection and intervention in training interruptions. When the affected limb is raised below a threshold angle, causing the light-emitting element to display a second light effect mode (indicating failure to meet the standard or training interruption) triggered by the light signal feedback module, if this failure persists for more than a preset duration, the control module immediately sends a reminder signal to the external terminal via the wireless transmission module. This allows caregivers or relevant guardians to receive real-time alerts of training abnormalities, enabling them to understand the patient's training status promptly even when not physically present, thus facilitating rapid intervention and preventing prolonged training interruptions due to the patient ignoring the light signal prompts, ensuring the continuity and effectiveness of rehabilitation training. This mechanism significantly improves the safety, compliance, and intelligent management of affected limb training, effectively overcoming the limitations of relying solely on local light signal feedback.

[0058] In some of the solutions described above in this invention, an angle monitoring module is proposed to monitor the elevation angle of the affected limb. However, in this process, if the accuracy of the angle monitoring module is insufficient or its reliability is low, the elevation angle data may be inaccurate, which in turn affects the comparison results of the control module and the prompting effect of the light signal feedback module, ultimately reducing the reliability of the training device and user compliance.

[0059] Based on this, the embodiments of the present invention further propose that the angle monitoring module in the above-mentioned device is a MEMS gyroscope or a high-precision angle sensor.

[0060] Specifically, a MEMS gyroscope is a sensor manufactured using microelectromechanical systems technology. Its core principle is based on the Coriolis effect to sense angular velocity. By measuring the minute displacement produced by a vibrating mass during rotation, the MEMS gyroscope can output precise angular velocity data, which can then be integrated to obtain the elevation angle of the affected limb. These sensors typically feature small size, low power consumption, fast response speed, and strong vibration resistance, making them suitable for scenarios requiring real-time, dynamic monitoring of angle changes.

[0061] High-precision angle sensors are a type of sensor that provides extremely high accuracy in angle measurement, aiming to minimize measurement errors and ensure the reliability of data output. These sensors can be implemented using various technical principles, such as: optical encoders, which read angular positions using photoelectric conversion principles through the rotation of gratings or code disks (and can be categorized as incremental or absolute); magnetic angle sensors, which measure angles using changes in magnetic fields, such as sensors based on the Hall effect or anisotropic magnetoresistive effects; and high-precision tilt sensors, which determine the tilt angle by measuring the angle between the direction of gravity and the sensor axis. All of these sensors provide high-resolution, high-linearity, and highly repeatable angle data.

[0062] By limiting the angle monitoring module to a MEMS gyroscope or a high-precision angle sensor, this application significantly improves the accuracy and reliability of limb elevation angle monitoring. MEMS gyroscopes or high-precision angle sensors provide fine and stable angle data, effectively avoiding measurement errors that may occur with traditional monitoring methods or low-precision sensors. When the control module receives this high-precision elevation angle data, its comparison with the angle threshold is more accurate, ensuring that the optical signal feedback module can trigger the light-emitting element to present the correct prompt light effect based on a true and effective training state. For example, when the limb elevation reaches or exceeds the angle threshold and the duration reaches the time threshold, the device can accurately identify and trigger the light-emitting element to present the first light effect mode, effectively indicating that the training has reached the target or is effective; conversely, when the elevation angle is below the angle threshold, it can also accurately trigger the light-emitting element to present the second light effect mode, indicating that the limb elevation has not reached the target or that the training has been interrupted. This high-precision monitoring mechanism ensures the reliability of the entire training device from the source, enhances the patient's trust in the training feedback, and thus improves the patient's training compliance and rehabilitation effect.

[0063] In some of the embodiments of the present invention described above, an angle monitoring module is proposed to monitor the elevation angle of the affected limb. However, if the affected limb is not stably placed on the support body during this process, the angle monitoring data may be inaccurate, affecting the effectiveness of training feedback.

[0064] Based on this, the present invention further proposes a visual training device for the affected limb. Figure 3 This is a schematic diagram illustrating the structural composition of another visualized training device for the affected limb according to an embodiment of the present invention. Figure 3 As shown, the device 30 also includes a pressure sensor 301 embedded in the surface of the support body 101. The pressure sensor 301 is electrically connected to the control module 103. The pressure sensor 301 is used to identify whether the affected limb is stably placed on the support body.

[0065] Specifically, the pressure sensor 301 is a device capable of sensing pressure and converting it into a measurable electrical signal. Its implementation can be varied; for example, a piezoresistive sensor can be used, detecting pressure by measuring the change in material resistance with pressure; or a piezoelectric sensor can be used, utilizing the effect of certain crystalline materials generating charge under pressure to sense pressure. Alternatively, a capacitive sensor can be used, detecting pressure by measuring the capacitance value of the distance between capacitor plates as pressure changes. All these sensors can effectively convert the pressure information applied by the affected limb to the support body into electrical signals for processing by the control module.

[0066] The pressure sensor 301 is embedded in the surface of the support body 101, meaning that the pressure sensor is integrated or installed inside or below the surface layer of the support body that contacts the affected limb. This embedded design ensures good contact between the sensor and the affected limb, thereby accurately capturing pressure information, while protecting the sensor from damage from the external environment. Specifically, the pressure sensor can be pre-embedded in a specific groove inside the support body and covered with a thin, pressure-permeable material; alternatively, during the molding of the support body, the sensor module can be directly encapsulated below the surface layer of the support body, making it flush with or slightly below the surface to maintain the overall smoothness and ergonomic characteristics of the support body.

[0067] The pressure sensor 301 is electrically connected to the control module 103, meaning that the pressure sensor establishes an electrical path with the control module through a physical medium such as a wire or flexible circuit. This connection method ensures that the analog or digital signals collected by the pressure sensor can be transmitted to the control module in real time and reliably for subsequent processing. For example, the output signal of the pressure sensor can be directly connected to the analog input port or digital communication interface (such as I2C, SPI, etc.) of the control module through a multi-core wire to achieve rapid data exchange.

[0068] Specifically, the pressure sensor 301 is used to identify whether the affected limb is stably placed on the support body 101. Its core function is to determine whether the posture and position of the affected limb are in the expected stable state by monitoring the distribution and changes in contact pressure between the affected limb and the support body. Specifically, the control module can analyze the force-bearing area, pressure center, and pressure change trend of the affected limb over time based on the output signal of the pressure sensor array.

[0069] Figure 4 This is a visualization of the limb training device's effect on the patient's experience, serving as an application example of the present invention. For example, when the limb is stably positioned, the pressure distribution may be relatively uniform and change little; however, when the limb slips, shifts, or is incorrectly raised, the pressure distribution changes significantly, such as a shift in the pressure center or a sudden decrease or increase in pressure from some sensors. By setting appropriate pressure thresholds or pattern recognition algorithms, the control module can accurately determine the stability of the limb's position.

[0070] Through the above technical solution, the pressure sensor can monitor the contact state and pressure distribution between the affected limb and the support body in real time. When the affected limb is not stably placed on the support body, the pressure sensor will detect abnormal pressure signals and transmit them to the control module. After receiving these abnormal signals, the control module can determine that the affected limb is in an unstable state, thereby avoiding inaccurate angle monitoring and optical signal feedback when the affected limb is unstable. This effectively solves the problem of inaccurate angle monitoring data caused by unstable placement of the affected limb, ensuring the effectiveness and reliability of training feedback. For example, when the pressure sensor detects that the affected limb has slipped or shifted, the control module can pause angle monitoring or issue a warning, prompting the user to adjust the position of the affected limb, thereby avoiding training guidance based on erroneous data, improving the accuracy and safety of training, and thus improving patient compliance and rehabilitation effects.

[0071] In some of the embodiments of the present invention described above, a support body is proposed to support the affected limb. However, in the process of its implementation, the support body may lack sufficient stability and comfort, which may cause the affected limb to slip or cause discomfort to the patient during training, affecting training compliance and rehabilitation effect.

[0072] Based on this, the present invention further proposes that the bottom of the support body 101 is a U-shaped structure and the surface is covered with a removable cotton pad.

[0073] Specifically, the bottom of the supporting body has a U-shaped structure. A U-shaped structure is a geometric shape with a groove or arc-shaped cross-section, designed to better conform to the physiological curve of the affected limb. This U-shaped structure can be implemented in various ways; for example, its cross-section can be semi-circular, parabolic, or elliptical to accommodate different limb shapes and sizes. Furthermore, the depth and width of the U-shaped structure can be adjusted according to actual needs to ensure stable support for limbs of different sizes. In terms of material selection, the U-shaped structure can be integrally molded from rigid materials such as engineering plastics or metal alloys, or composed of multi-layered composite materials to achieve lightweighting while ensuring structural strength.

[0074] Meanwhile, the surface of the support body is covered with a removable cotton pad. A removable cotton pad is a soft liner that can be separated from, washed, or replaced from the surface of the support body. The pad can be secured in various ways, such as using Velcro, snaps, or zippers, making it easy for users to remove and install. In terms of materials, the pad can be made of memory foam, high-density sponge, or gel pads, which have good cushioning properties. Its outer layer can be wrapped with breathable, skin-friendly fabrics, such as pure cotton, bamboo fiber, or medical non-woven fabric, to improve the comfort of the affected limb. Furthermore, the thickness of the pad can be selected according to the sensitivity and comfort needs of the affected limb; different thicknesses of pads can even be provided for users to replace, meeting personalized training needs.

[0075] Through the aforementioned technical solution, the U-shaped structure at the bottom of the support body provides a more stable support base, effectively conforming to the physiological curve of the affected limb, thereby preventing slippage or displacement of the limb during elevation training. This not only ensures the accuracy of the elevation angle monitoring module but also significantly improves the stability of the training process. Simultaneously, the removable cotton pad on the surface increases the softness and cushioning of the contact surface with the affected limb, greatly enhancing patient comfort and effectively alleviating discomfort that may arise from prolonged training. Furthermore, the removable cotton pad design facilitates daily cleaning and maintenance, helping to maintain good hygiene and reducing training interruptions due to discomfort or hygiene issues. Overall, this technical solution, by optimizing the structural design of the support body, effectively solves the problems of insufficient stability and comfort during limb training, thereby enhancing patient compliance, ensuring training effectiveness, and indirectly reducing the burden on nursing staff. Figure 4 As shown.

[0076] In some embodiments of the present invention described above, a control module is proposed to process angle data and generate control commands. However, in this process, parameter values ​​such as angle threshold, time threshold and set duration are fixed and cannot be adjusted according to the patient's specific needs or rehabilitation progress, resulting in a lack of personalized training.

[0077] Based on this, this application further proposes that the control module 103 can realize the setting of custom parameter values; the custom parameter values ​​include one of the following parameter values: angle threshold, time threshold and set duration.

[0078] Specifically, the control module 103 allows for custom parameter value settings, meaning it enables users to input and modify specific operating parameters. This custom setting function can be implemented in various ways. For example, users can directly adjust parameters through a physical operating interface on the device, such as buttons, knobs, or a small touchscreen. Alternatively, it can be remotely configured via an external terminal electrically connected to the control module, such as a smartphone application, tablet, or personal computer software, through wireless communication (such as Bluetooth or Wi-Fi) or wired connection (such as USB).

[0079] The angle threshold is one of the customizable parameter values, defining the minimum elevation angle the affected limb needs to achieve during training. Specifically, users can input a precise value (e.g., 30 degrees, 45 degrees) based on the patient's rehabilitation stage, physical condition, or medical advice, or select from a preset range or a list of commonly used angles. This setting ensures a high degree of alignment between training goals and individual rehabilitation needs.

[0080] The time threshold is one of the customizable parameters that specifies the minimum duration for which the affected limb must be maintained at or above the angle threshold. Specifically, users can enter a value in seconds or minutes, or select from preset duration options (e.g., 10 seconds, 30 seconds, 1 minute). This setting helps ensure the effectiveness and continuity of limb training, avoiding brief, ineffective elevations.

[0081] The set duration is one of the customizable parameter values. This parameter defines how long the system should send an alert signal to an external terminal after the affected limb's elevation angle remains below a threshold (i.e., in a state of failure or training interruption). Specifically, the user can input a value in seconds or minutes, or select from preset alert trigger duration options. This setting allows the alert mechanism to be personalized according to actual needs, avoiding unnecessary interference and promptly notifying caregivers or the patient.

[0082] Through the above technical solution, the control module of this invention can flexibly adjust training parameters according to the individual differences and rehabilitation progress of patients. For example, for patients in the early stage of rehabilitation, a lower elevation angle threshold and a shorter time threshold can be set to reduce the difficulty of training; as rehabilitation progresses, these parameters can be gradually increased to increase the training intensity. At the same time, the customizable duration setting function allows for precise control of the timing of the reminder signal when the affected limb fails to meet the standard or training is interrupted, thereby avoiding the rigidity of training caused by fixed parameters. This personalized parameter setting greatly improves the adaptability and effectiveness of training, helps to improve patient compliance, and optimizes rehabilitation results. In addition, in conjunction with the above-mentioned optical signal feedback module, when the custom elevation angle reaches or exceeds the angle threshold and the duration reaches the time threshold, the optical signal feedback module can trigger the light-emitting element to present a first light effect mode, intuitively indicating that the training has met the standard; when the elevation angle is lower than the angle threshold, a second light effect mode is presented, indicating that the training has not met the standard. If the second light effect mode continues for more than the customizable set duration, the wireless transmission module sends a reminder signal to the external terminal, realizing intelligent management and timely intervention of the training process.

[0083] Traditional limb elevation nursing devices face technical challenges in clinical application, such as the inability to accurately quantify the elevation angle, the lack of real-time feedback mechanisms, and the absence of visual prompts. These challenges lead to poor patient compliance, negatively impacting rehabilitation outcomes and increasing the workload for nursing staff. To address these issues, this invention proposes a visualized limb elevation training method.

[0084] Figure 5 This is a flowchart illustrating a visual method for training the affected limb according to an embodiment of the present invention. Figure 5 As shown, this embodiment of the invention provides a visual training method for the affected limb, such as... Figure 5As shown, the method includes: operation S501, using a support body to support the affected limb; operation S502, using an angle monitoring module to monitor the elevation angle of the affected limb relative to a horizontal plane or the level of the heart, and transmitting the elevation angle to a control module; operation S503, the control module receives the elevation angle, compares the elevation angle with an angle threshold, generates a control command based on the comparison result, and transmits the control command to a light signal feedback module; operation S504, the light signal feedback module receives the control command and, in response to the control command, triggers a light-emitting element to present different light effects.

[0085] This invention integrates the angle monitoring module, control module, and optical signal feedback module in a real-time data interaction manner to achieve precise quantitative monitoring of the elevation angle of the affected limb, intelligent threshold judgment, and instant visual feedback. This effectively solves the problems of inaccurate angle measurement, lack of feedback, and insufficient prompting function in traditional nursing care.

[0086] Specifically, the support structure provides a stable foundation for the affected limb, ensuring that the monitoring process is not affected by positional shifts; the angle monitoring module acquires real-time data on the elevation angle of the affected limb relative to the reference plane, achieving precise digital representation of the angle; the control module dynamically compares the elevation angle against preset angle thresholds to generate targeted control commands; and the light signal feedback module drives the light-emitting element to present differentiated light effects according to the commands, making the training status intuitively visible. Through the above technical solutions, patients can independently confirm whether the elevation angle has reached the target, and nursing staff can remotely monitor the training process, significantly improving the standardization level of limb training, patient compliance, and nursing management efficiency.

[0087] The following example will provide a more detailed explanation of the above technical solution: In a rehabilitation center, user A needed to perform limb elevation exercises to promote blood circulation and reduce edema. Traditional training methods typically involved using pillows or sandbags for elevation, but user A and caregivers found it difficult to accurately determine if the elevation angle met medical advice and to monitor the training effectiveness in real time. To address this issue, the rehabilitation center introduced a visual limb training device.

[0088] This visualized limb training device includes a support body with an ergonomically designed curved surface to comfortably support user A's affected limb. An angle monitoring module is integrated within the support body, employing a high-precision angle sensor to monitor the elevation angle of the affected limb relative to the horizontal plane in real time. When user A places their affected limb on the support body, the angle monitoring module activates and continuously transmits the monitored elevation angle data to the control module.

[0089] After receiving the elevation angle data, the control module compares it with a preset angle threshold. For example, a doctor might set an elevation angle threshold of 30 degrees and a time threshold of 5 minutes for user A. The control module continuously monitors whether the elevation angle of the affected limb reaches or exceeds 30 degrees and records its duration. Simultaneously, the device also incorporates a pressure sensor to identify whether the affected limb is stably placed on the support, ensuring the effectiveness of the training. Of course, in practical applications, in addition to the 30 degrees in the example above, the angle threshold can also be set to specific angles such as 15 degrees or 45 degrees, allowing the device to better meet the needs of different clinical conditions.

[0090] When the control module determines that the affected limb is raised to an angle of 30 degrees or higher and the duration is 5 minutes or more, the comparison result is considered satisfactory. At this point, the control module generates a control command and sends it to the light signal feedback module. Upon receiving the command, the light signal feedback module triggers its light-emitting elements to display the first light effect mode. For example, the support body sequentially illuminates a flowing light strip animation along a specific direction, presenting a green flowing light effect. This visual prompt intuitively informs user A and caregivers that the current limb elevation training has met the standard and is effective, solving the problem of lacking real-time feedback and visual prompts in traditional methods.

[0091] Conversely, if the control module detects that the affected limb is raised at an angle less than 30 degrees, or if the angle meets the standard but the duration is less than 5 minutes, the comparison result is considered as not meeting the standard or training interrupted. In this case, the control module generates another control command. Upon receiving the command, the light signal feedback module triggers the light-emitting element to display a second light effect mode, for example, the light strip displays a red light effect. This red light effect prompts user A to adjust the position of the affected limb or restart training, and also reminds caregivers to pay attention to user A's training status, avoiding poor training results due to poor compliance.

[0092] In addition, the device is equipped with a wireless transmission module, enabling communication with the control module and external terminals (such as computers at the nursing station or tablets for doctors). If the duration of the second light effect mode (red light effect) displayed by the light signal feedback module exceeds the preset time (e.g., 10 minutes), the control module will automatically send an alert signal to the external terminal via the wireless transmission module. This allows nursing staff to be aware of any abnormalities in User A's training even when they are not physically present, enabling timely intervention and achieving intelligent management and remote monitoring of the training process.

[0093] The power module provides a stable power supply to the angle monitoring module, control module, and optical signal feedback module, ensuring reliable operation of the device over extended periods. The base of the support structure features a U-shaped design with a removable cotton pad for easy cleaning and replacement, further enhancing the user experience. The control module also supports custom parameter settings, allowing caregivers to flexibly adjust parameters such as angle thresholds, time thresholds, and set durations according to user A's specific rehabilitation needs, making the training program more personalized and adaptable.

[0094] Through the above example, this visualized limb training device, through its integrated angle monitoring module, control module, and optical signal feedback module, achieves precise quantification, real-time visual feedback, and intelligent management of the limb elevation angle. Compared with the traditional method of relying solely on pillows or sandbags for elevation, this significantly improves the standardization of training, user compliance, and nursing efficiency, effectively solving the technical problems of existing technologies such as the inability to accurately quantify the elevation angle, lack of real-time feedback, lack of visual prompts, and inability to achieve data-driven and intelligent management.

[0095] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, modifications can still be made to the embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A visual training device for a affected limb, characterized in that, The device includes: a support body with an ergonomic curved surface structure; an angle monitoring module disposed inside or on the surface of the support body; a control module electrically connected to the angle monitoring module; an optical signal feedback module electrically connected to the control module; and a power supply module for supplying power to the angle monitoring module, the control module, and the optical signal feedback module; wherein... The supporting body is used to support the affected limb; The angle monitoring module is used to monitor the elevation angle of the affected limb relative to the horizontal plane or the level of the heart, and transmit the elevation angle to the control module; The control module is used to receive the elevation angle, compare the elevation angle with an angle threshold, generate a control command based on the comparison result, and transmit the control command to the optical signal feedback module. The optical signal feedback module is used to receive the control command and, in response to the control command, trigger the light-emitting element to present different light effects.

2. The apparatus according to claim 1, characterized in that, The comparison result is that the elevation angle reaches or exceeds the angle threshold, and the duration reaches the time threshold; accordingly, the light signal feedback module is specifically used to receive the control command and respond to the control command to trigger the light-emitting element to present the first light effect mode, so as to indicate that the elevation of the affected limb is up to standard or the training is effective. Alternatively, the comparison result is that the elevation angle is lower than the angle threshold; correspondingly, the light signal feedback module is specifically used to receive the control command and respond to the control command to trigger the light-emitting element to present a second light effect mode, so as to indicate that the elevation of the affected limb has not reached the standard or the training has been interrupted. The second light effect mode is different from the first light effect mode.

3. The apparatus according to claim 2, characterized in that, The first light effect mode is a green light effect or a flowing light effect; the second light effect mode is a red light effect or is in an off state.

4. The apparatus according to claim 3, characterized in that, The flowing light effect is a sequential lighting animation of light strips illuminating along a specific direction of the supporting body.

5. The apparatus according to claim 2, characterized in that, The device also includes a wireless transmission module, which can communicate with the control module and an external terminal. The wireless transmission module is used to send a reminder signal to an external terminal after the control module triggers the light-emitting element to present the second light effect mode for a set time.

6. The apparatus according to any one of claims 1 to 5, characterized in that, The angle monitoring module is a micromechanical (MEMS) gyroscope or a high-precision angle sensor.

7. The apparatus according to any one of claims 1 to 5, characterized in that, The device also includes a pressure sensor embedded in the surface of the support body, and the pressure sensor is electrically connected to the control module. The pressure sensor is used to identify whether the affected limb is stably placed on the support body.

8. The apparatus according to any one of claims 1 to 5, characterized in that, The bottom of the support body has a U-shaped structure, and the surface is covered with a removable cotton pad.

9. The apparatus according to any one of claims 1, 2, and 5, characterized in that, The control module can set custom parameter values; the custom parameter values ​​include one of the following: angle threshold, time threshold, and set duration.

10. A visual training method for the affected limb, characterized in that, The method includes: The supporting structure is used to support the affected limb; The angle monitoring module monitors the elevation angle of the affected limb relative to the horizontal plane or the level of the heart, and transmits the elevation angle to the control module. The control module receives the elevation angle, compares the elevation angle with an angle threshold, generates a control command based on the comparison result, and transmits the control command to the optical signal feedback module. The optical signal feedback module receives the control command and responds to the control command to trigger the light-emitting element to present different light effects.

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