Edema detection system, method, apparatus, and electronic device

Abstract

This application discloses an edema detection system, method, apparatus, and electronic device. The system acquires images of the target area using an auxiliary terminal's image acquisition device. The system controller determines and highlights the preset target area, accurately guiding the operator to the correct location. Simultaneously, by recognizing the region information of the electrode, a confirmation message is generated when the region information of the electrode overlaps with the preset target area, instructing the operator to perform the pasting operation, ensuring accurate electrode placement. The technical solution of this application improves the authenticity and consistency of the detection data, providing reliable data support for accurate edema assessment. It also reduces operational difficulty and improves operational efficiency, adapting to various practical application scenarios such as clinical practice and continuous follow-up. It effectively solves the problems of existing edema detection equipment where manual electrode pasting is difficult to accurately locate the preset detection site, and is prone to attachment deviations leading to distorted detection data. Furthermore, it is highly suitable for home medical scenarios and can be used by ordinary users with limited operational skills.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to an edema detection system, method, apparatus and electronic device. Background Technology

[0002] Existing edema detection equipment requires manual application of electrodes to the target area. Operators find it difficult to accurately locate the preset detection sites, which can easily lead to electrode attachment deviations, resulting in distorted detection data and affecting the accuracy of edema assessment. This is especially true in scenarios involving continuous assessment over multiple days, where deviations in the attachment position can render quantitative data analysis meaningless. Summary of the Invention

[0003] This application aims to provide an edema detection system, method, apparatus, and electronic device that can meet the needs of quantitative analysis of edema monitoring.

[0004] The edema detection system according to a first aspect embodiment of this application includes: An edema detection device includes a device body and an electrode assembly electrically connected to the device body. The electrode assembly includes multiple electrodes for attaching to different preset target areas. The auxiliary terminal includes an image acquisition device, a system controller, and a terminal display unit. The image acquisition device is used to acquire images of a target area. The system controller is used to determine the preset target area in the target area image and highlight the preset target area. The terminal display unit is used to display the target area image. The system controller is also used to determine the area information of the electrode in the target area image, and generate confirmation information when the area information of the electrode overlaps with the preset target area. The confirmation information is used to instruct the operator to perform the operation of pasting the electrode.

[0005] The edema detection method according to a second aspect of this application, applied to the edema detection system as described in the first aspect embodiment, includes: Acquire images of the target area captured by the image acquisition device; A preset target area is determined in the target area image and highlighted to guide the operator to move the electrode corresponding to the preset target area to the position corresponding to the preset target area; The target area image is displayed through the terminal display unit; Determine the region information of the polari in the target region image; If the area information of the electrode overlaps with the preset target area, a confirmation message is generated and displayed on the terminal display unit. The confirmation message is used to instruct the operator to attach the electrode perpendicular to the preset target area.

[0006] The edema detection device according to a third aspect of this application is applied to the edema detection system as described in the first aspect embodiment. The edema detection device includes: The image acquisition module is used to acquire images of the target area captured by the image acquisition device; The first positioning module is used to determine a preset target area in the target area image and highlight the preset target area to guide the operator to move the electrode corresponding to the preset target area to the position corresponding to the preset target area. The display module is used to display the target area image through the terminal display unit; The second positioning module is used to determine the region information of the polari in the target region image; The confirmation module is used to generate confirmation information when the area information of the electrode overlaps with the preset target area, and to display it on the terminal display unit. The confirmation information is used to instruct the operator to paste the electrode perpendicularly to the preset target area.

[0007] An electronic device according to a fourth aspect of this application includes: a processor and a memory storing computer program instructions; When the processor executes computer program instructions, it implements the edema detection method as described in the second aspect embodiment.

[0008] The edema detection system, method, apparatus, and electronic device of this application acquire images of the target area through an image acquisition device on an auxiliary terminal. The system controller determines and highlights the preset target area, which can accurately guide the operator to locate the target area. Simultaneously, by recognizing the area information of the electrode, confirmation information is generated when the area information of the electrode overlaps with the preset target area, instructing the operator to perform the pasting operation, ensuring accurate electrode placement. The technical solution of this application improves the authenticity and consistency of the detection data, providing reliable data support for accurate edema assessment. It also reduces operational difficulty and improves operational efficiency, adapting to various practical application scenarios such as clinical practice and continuous follow-up. It effectively solves the problems of existing edema detection equipment, such as difficulty in accurately locating the preset detection site when manually pasting electrode, and the tendency for pasting deviations to cause data distortion, especially the failure of quantitative analysis in continuous assessment scenarios. Furthermore, it is highly suitable for home medical scenarios and can be used by ordinary users with low operational skills.

[0009] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0010] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the edema detection device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the edema detection system provided in the embodiments of this application; Figure 3 This is a schematic diagram showing the connection between the electrode and the clamping conductive structure provided in an embodiment of this application; Figure 4 A flowchart of the edema detection method provided in the embodiments of this application.

[0011] Figure label: Human-machine interaction unit 110; local controller 120; signal transmission unit 130; signal excitation unit 131; signal conditioning circuit 132; constant current source circuit 133; first multiplexer 134; signal receiving unit 140; differential amplifier circuit 141; passive filter circuit 142; signal acquisition unit 143; second multiplexer 144; electrode group 150; electrode 151; clamping conductive structure 160; local communication module 170; memory 180; expansion interface 190; Image acquisition device 210; system controller 220; terminal display unit 230; terminal communication module 240. Detailed Implementation

[0012] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0013] In the description of this application, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0014] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0015] In the description of this application, it should be noted that, unless otherwise explicitly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0016] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this application, not all embodiments.

[0017] refer to Figures 1 to 2 One embodiment of this application provides an edema detection system, which includes: The edema detection device includes a device body and an electrode assembly 150 electrically connected to the device body. The electrode assembly 150 includes multiple electrodes 151, which are used to be attached to different preset target areas. The auxiliary terminal includes an image acquisition device 210, a system controller 220, and a terminal display unit 230. The image acquisition device 210 is used to acquire images of the target area. The system controller 220 is used to determine a preset target area in the target area image and highlight the preset target area. The terminal display unit 230 is used to display the target area image. The system controller 220 is also used to determine the area information of the electrode 151 in the target area image, and to generate confirmation information when the area information of the electrode 151 overlaps with the preset target area. The confirmation information is used to instruct the operator to perform the electrode pasting operation.

[0018] In this embodiment, the image acquisition device 210 of the auxiliary terminal acquires images of the target area, and the system controller 220 determines and highlights the preset target area, which can accurately guide the operator to locate it. At the same time, by recognizing the area information of the electrode 151, a confirmation message is generated when the area information of the electrode 151 overlaps with the preset target area, instructing the operator to perform the pasting operation, so that the electrode 151 is accurately attached. The technical solution of this embodiment improves the authenticity and consistency of the detection data, provides reliable data support for accurate edema assessment, reduces the difficulty of operation, improves the efficiency of operation, and is suitable for various practical application scenarios such as clinical and continuous follow-up. It can effectively solve the problems of existing edema detection equipment where it is difficult to accurately locate the preset detection site when manually pasting the electrode 151, and the detection data is easily distorted due to the attachment deviation, especially the failure of quantitative analysis in continuous assessment scenarios. It is also extremely suitable for home medical scenarios and is suitable for ordinary users with low operation skills.

[0019] The specific system structure of the aforementioned edema detection equipment can be found by referring to... Figure 1 , Figure 2 The edema detection equipment will be described in detail later, and will not be elaborated here.

[0020] The electrode assembly 150 is connected to the device body via local electrical connection, and the connection method can be direct connection with a wire.

[0021] The electrode assembly 150 may include multiple electrodes 151, preferably medical conductive gel electrodes 151, which are easy to attach to a preset target area on the human body (such as the lower limbs, upper limbs and other areas with high incidence of edema). After being attached to the skin, it can reduce contact resistance and improve detection accuracy. Multiple electrodes 151 correspond to different preset target areas, enabling simultaneous detection of multiple sites or multi-point detection of a single site.

[0022] The aforementioned auxiliary terminal serves as an operation guidance and information display component, used to solve the problem of inaccurate positioning of manually attached electrode 151.

[0023] The aforementioned image acquisition device 210 can be equipped with a high-definition camera, which can be integrated on the front of the auxiliary terminal or on a foldable bracket, making it convenient to flexibly acquire real-time images of the target area of ​​the human body (such as the lower leg and arm). The acquisition angle can be adjusted according to the operation requirements to clearly capture the entire target area.

[0024] The aforementioned system controller 220 can be an embedded controller, pre-store the feature parameters of the preset target area, and quickly identify and determine the preset target area in the acquired target area image through image recognition algorithm. At the same time, the preset target area is highlighted by highlighting, selection and other methods to intuitively guide the operator to locate it.

[0025] It should be noted that in some implementations, images of the arms, lower legs, or other limbs of the person to be monitored for an extended period can be pre-captured, and a preset target area can be selected manually. The relative positional features of the selected target area relative to the arm or lower leg are then stored. When the arm or lower leg image is subsequently captured, the relative positional information is directly used to determine and highlight the preset target area. When multiple locations require the attachment of electrode patches 151, a corresponding preset target area can be set for each electrode patch 151. When attachment is needed, the corresponding electrode patch 151 is manually selected, and then the positional information of the corresponding preset target area is retrieved. For example, if the first electrode patch needs to be attached to the first position on the right upper limb, the relative positional information of the preset target area corresponding to the first electrode patch or the first position on the right upper limb is manually selected. This allows the preset target area to be highlighted when the right upper limb is captured. Similarly, the same operation can be performed on the second electrode patch and the second position, as well as all subsequent corresponding electrodes and positions.

[0026] It should also be noted that the feature parameters of the preset target area can also be image features. When the preset target area is obtained by manually selecting the area, the image features of the area are recorded, especially for obvious features such as birthmarks and patches. Subsequently, when the corresponding part is photographed, the preset target area can be highlighted based on the image features.

[0027] It should be noted that in the field of image recognition, there are many ways to achieve matching of a specific image, which will not be listed here.

[0028] The aforementioned terminal display unit 230 can be a high-definition touch screen, which can display the collected target area image and the highlighted preset target area in real time, making it convenient for operators to observe.

[0029] The aforementioned system controller 220 can also determine the area information (including electrode position and orientation) of electrode 151 through image recognition technology. When the electrode position information is found to completely overlap or effectively overlap with the preset target area (e.g., more than 95%, which can be considered as effective overlap), a confirmation message is generated. The confirmation message can be in the form of text prompts (such as "paste operation can be performed") or audio-visual prompts, clearly instructing the operator to perform the electrode 151 pasting operation.

[0030] In some implementations, reference Figure 2 The auxiliary terminal also includes a terminal communication module 240 electrically connected to the system controller 220. The terminal communication module 240 is used to establish a communication connection with the edema detection device. The system controller 220 is also used to acquire impedance data collected by the edema detection device. When the impedance data is within the preset detection threshold range, it generates a mark indicating that the electrode attachment is complete and displays it through the terminal display unit 230.

[0031] The aforementioned terminal communication module 240 preferably uses a wireless communication module (such as a Bluetooth module or a WiFi module), but wired communication modules such as a USB interface can also be used. The wireless communication module can enable wireless connection between the auxiliary terminal and the edema detection device, improving operational flexibility.

[0032] The core function of the aforementioned terminal communication module 240 is to establish a two-way communication connection with the edema detection device to achieve data interaction. The system controller 220 can obtain the impedance data of the target area of ​​the human body collected by the edema detection device in real time through the terminal communication module 240. The system controller 220 has a preset detection threshold pre-stored. This threshold is pre-calibrated according to the physiological impedance characteristics of different parts of the human body (lower limbs, upper limbs) and different groups of people (such as the elderly and adults). When the system controller 220 determines that the acquired impedance data is within the range of the preset detection threshold, it indicates that the electrode 151 has been stably attached to the human skin and has good contact. At this time, the system controller 220 generates an electrode attachment completion mark. This mark can be displayed intuitively through the terminal display unit 230 using a dedicated icon, text prompt (such as "Attachment complete, detection can begin"), or color highlighting, so as to facilitate the operator to quickly confirm the attachment status of the electrode 151 without manual inspection. In some implementations, the terminal communication module 240 is a wireless communication module.

[0033] In this embodiment, the terminal communication module 240 is set as a wireless communication module, which can get rid of the limitation of wired communication cables and reduce the probability of problems such as cable tangling, pulling causing electrode 151 to shift, and loose contact. At the same time, it can greatly improve the flexibility of equipment placement and operation.

[0034] In some implementations, the terminal communication module 240 includes at least one of a Bluetooth module and a WiFi module.

[0035] In this embodiment, the terminal communication module 240 is equipped with at least one of Bluetooth and WiFi modules, enabling flexible selection of transmission modes and adapting to different transmission needs according to usage scenarios: Bluetooth modules offer low power consumption and fast pairing, while WiFi modules offer long transmission distances and high speeds. The combination of the two caters to the transmission needs of various scenarios, significantly improving the device's adaptability. Furthermore, the multi-mode wireless transmission eliminates the constraints of cables, and combined with the device's portable design, makes its use in bedside, home care, and other scenarios more flexible.

[0036] In some implementations, reference Figure 1 , Figure 2 The device body includes: A portable housing with an electrode connection port assembly and a handheld part. The human-computer interaction unit 110 is mounted on the portable casing; The local controller 120 is housed within the portable casing; The signal transmitting unit 130 is housed inside the portable housing and electrically connected to the local controller 120 for outputting detection signals; The signal receiving unit 140 is disposed inside the portable housing and electrically connected to the local controller 120 for receiving feedback signals; the electrode plate group 150 is electrically connected to the signal transmitting unit 130 and the signal receiving unit 140 through the electrode plate connection port group. The local communication module 170 is electrically connected to the local controller 120 and is also communicatively connected to the terminal communication module 240.

[0037] The aforementioned housing serves as the overall hardware carrier of the device. It can be made of lightweight, rigid materials in a single piece, balancing structural stability and portability, making it suitable for bedside operation, mobile carrying, and other usage scenarios. A handle is integrally integrated into the housing. The surface of the handle can be enhanced with anti-slip textures / silicone anti-slip layer to improve grip comfort and stability. Alternatively, the handle can be directly used as a grip for direct holding.

[0038] The front / side of the aforementioned housing may also be provided with an electrode connection port group, which includes two sets of signal connection ports. The two sets of signal connection ports are used for signal output and reception, respectively. The specifications of the two sets of signal connection ports are compatible with the connection lines of the electrode group 150, so as to realize a stable electrical connection between the electrode group 150 and the electrical components inside the housing.

[0039] The aforementioned human-computer interaction unit 110 can be fixedly installed in the visible operating area of ​​the portable housing and electrically connected to the local controller 120 inside the housing. It can be used to realize the local setting of detection parameters, the status display of the detection process, and the real-time viewing of detection results. It can also perform auxiliary operations when wireless connection with a smart terminal is required.

[0040] The aforementioned human-computer interaction unit 110 can be a touch screen, a combination of buttons and an LCD screen, or a combination of buttons and indicator lights, making it easy to operate and suitable for rapid bedside operation needs.

[0041] The aforementioned local controller 120, installed in a pre-set location within the portable housing, serves as the control core of the entire device. It can be a high-performance microcontroller unit such as the STM32 series. It establishes electrical connections with the human-machine interface unit 110, the signal transmitting unit 130, the signal receiving unit 140, and the local communication module 170. It can receive operation commands from the human-machine interface unit 110, control the start / stop and operating parameters of the signal transmitting unit 130 and the signal receiving unit 140, process the feedback signals transmitted by the signal receiving unit 140 and convert them into detection results, and simultaneously control the display of detection data on the human-machine interface unit 110 and its transmission through the local communication module 170.

[0042] The aforementioned local controller 120 can directly connect to various functional modules / units through communication interfaces such as I / O ports, SPI / I2C / USART, etc.

[0043] The aforementioned signal transmitting unit 130 is built into a portable housing and is electrically connected to a local controller 120. Under the control of the local controller 120, it generates and outputs a detection signal that meets the detection requirements. The detection signal is an AC constant current signal, which can be applied to the subcutaneous edema detection site of the test object through the electrode connection port group and the electrode group 150.

[0044] The aforementioned signal receiving unit 140 is built into a portable housing and electrically connected to the local controller 120. It is used to receive feedback signals from the detection part of the object under test. The feedback signals are collected by the electrode plate group 150 and transmitted to the signal receiving unit 140 through the electrode plate connection port group. After the signal receiving unit 140 performs preliminary conditioning on the feedback signals, it transmits them to the local controller 120 for subsequent data processing and analysis.

[0045] The electrode assembly 150 is the detection end of the device, which includes at least two sets of electrodes 151, one set for applying detection signals and the other set for receiving feedback signals.

[0046] One end of each electrode 151 is an application end, which can be made of medical conductive adhesive material, and can be tightly applied to the subcutaneous edema detection site of the test subject to achieve good conductive contact with human skin. The other end of the electrode 151 is connected to a connecting wire, and the end of the connecting wire can be plugged into the electrode connection port group, thereby realizing the electrical conduction between the electrode group 150 and the signal transmitting unit 130 and the signal receiving unit 140, and completing the output of detection signal and the acquisition of feedback signal.

[0047] The aforementioned local communication module 170 is built into the portable housing and electrically connected to the local controller 120. It serves as the data transmission component of the device and can be equipped with wireless communication modules such as Bluetooth or WiFi, or a wired communication interface. Under the control of the local controller 120, it realizes the external transmission of information such as detection data and device working status, adapting to the data sharing needs of telemedicine. At the same time, it can also receive control commands from external terminals, which can be remote control terminals or local auxiliary terminals, and transmit them to the local controller 120 to realize remote parameter setting of the device.

[0048] In some embodiments, the edema detection device described above also includes a memory 180 disposed within a portable housing, the memory 180 being electrically connected to a local controller 120.

[0049] The aforementioned memory 180 can be built into a reserved mounting position inside the portable housing to achieve a stable electrical connection with the local controller 120. Data storage devices such as Flash memory, SD card, and solid-state drive can be selected, and the storage capacity can be flexibly configured according to the storage requirements of the detection data.

[0050] The aforementioned memory 180 serves as the device's local data storage carrier. Under the control instructions of the local controller 120, it can write in real time the device's working configuration parameters, the original feedback signal data collected during the detection process, the subcutaneous edema detection results generated after processing by the local controller 120, and historical detection data at different times and different detection sites.

[0051] The aforementioned local controller 120 can quickly read the data stored in the memory 180, and can then work with the human-machine interaction unit 110 to enable local access to historical data, and can also work with the local communication module 170 to transmit the stored historical data to the outside.

[0052] In this embodiment, the added memory 180 enables local offline storage of detection-related data, effectively preventing data loss due to network interruptions, device power outages, etc., and improving data integrity and security. Simultaneously, it can retain original detection data, results, and historical records in real time, facilitating subsequent retrieval and review by medical personnel for diagnostic analysis and data retrospection, providing data support for patient condition tracking. Furthermore, it eliminates the need for external terminals to store data in real time; even in bedside or home care scenarios without network access, the device can independently complete data storage. Combined with the human-machine interface unit 110, historical data can be viewed locally, further expanding the device's applicable scenarios. It can also work with the local communication module 170 to enable subsequent batch uploading of stored data, enhancing the flexibility and convenience of device data management.

[0053] In some embodiments, the human-computer interaction unit 110 includes: A touch display, mounted on the portable housing, is electrically connected to the local controller 120.

[0054] The aforementioned touch display can be embedded or fixed to the front visible operating area of ​​the portable housing, and is positioned at an angle suitable for holding and operating the handheld part on the housing. The screen size can be flexibly selected according to the overall structure of the portable housing, taking into account both display clarity and device portability.

[0055] In this embodiment, the touch display integrates operation input and information display functions, eliminating the need for additional physical buttons, simplifying the human-computer interaction structure, saving surface space of the portable casing, and adapting to the portable design requirements of the device; at the same time, the visual interface intuitively displays the detection parameters, results, and device status, making the information clear and easy to understand, reducing the operating threshold of the device, and further optimizing the user experience.

[0056] Understandably, if only simple operation functions and simple operation status indication are required, the human-machine interaction unit 110 can directly adopt a combination of "button group + indicator light group".

[0057] In some implementations, the local communication module 170 is a wireless communication module.

[0058] The aforementioned wireless communication module can receive remote control commands sent by auxiliary terminals such as mobile phones and tablets, as well as remote terminals such as hospital host computers, and transmit the commands to the local controller 120 to complete operations such as remote setting of detection parameters and start / stop of measurement. The transmission process can be equipped with data encryption algorithms to ensure the security of medical test data transmission.

[0059] In this embodiment, the local communication module 170 is set as a wireless communication module, eliminating the constraints of traditional wired communication cables. This adapts to the portability of the device and the needs of bedside mobile testing. There are no wiring problems during bedside operation, preventing cable tangling from affecting the testing operation and greatly improving the flexibility of the device. In addition, it can realize the wireless real-time transmission of test data, and medical staff can remotely view the test results through external terminals. This adapts to the data sharing needs of telemedicine and hospital information management, and also facilitates the exchange of diagnostic and treatment data between multiple departments.

[0060] In some implementations, the local communication module 170 includes at least one of a Bluetooth module and a WiFi module.

[0061] In this embodiment, the local communication module 170 is equipped with at least one of Bluetooth and WiFi modules, enabling flexible selection of transmission modes to adapt to different transmission needs according to usage scenarios: the Bluetooth module is low-power and pairs quickly, suitable for rapid transmission of test data from the bedside to mobile terminals at close range, offering convenient operation and long battery life; the WiFi module has a long transmission distance and high speed, enabling stable uploading of test data to hospital host computers and telemedicine platforms, adapting to the needs of information-based diagnosis and treatment and remote monitoring. The combination of the two modules covers the transmission needs of various scenarios, significantly improving the adaptability of the device. At the same time, the multi-mode wireless transmission eliminates the constraints of cables, and combined with the portable design of the device, makes its use in bedside, home care, and other scenarios more flexible.

[0062] In some implementations, reference Figure 1 , Figure 2 The aforementioned edema detection device also includes an expansion interface 190 disposed on the portable housing, which is electrically connected to the local controller 120.

[0063] The aforementioned expansion interface 190 can be embedded in the non-grip area on the side of the portable housing or the side of the handheld part, avoiding the human-machine interface unit 110 and the electrode connection port group as much as possible, so as not to affect the handheld operation of the device and the use of core components. A waterproof and dustproof protective cover can be configured on the outside of the interface.

[0064] The aforementioned expansion interface 190 can be a general-purpose interface such as Type-C, USB, or standard serial port, to achieve a stable electrical connection with the local controller 120 inside the housing. It supports bidirectional transmission of data and control commands, enables wired export of detection data and wired networking communication of the device, and can also connect to external peripherals such as host computers. It can also serve as a backup power supply interface for the device. Its working status is uniformly managed by the local controller 120, and relevant connection and usage information can be displayed in real time on the touch screen.

[0065] In some embodiments, the edema detection device described above also includes a storage battery disposed within a portable housing.

[0066] The aforementioned energy storage battery can be installed in a dedicated battery compartment inside the portable housing. The battery compartment is designed to be isolated and protected from other electrical components to prevent the battery from interfering with the detection signal. The energy storage battery is electrically connected to the local controller 120 and all electrical components to provide independent power supply for the entire edema detection device.

[0067] It should be noted that in this application, the external power supply can be connected to the system via a Type-C interface and converted to +12V and +5V main power by chips such as TPS65133DPDR and TPS63020DSJR. The +5V power supply is converted to +3.3V by LDO regulator chips such as TLV75733PDBVR. Multiple power supplies are used to power digital / low-voltage analog devices such as the local controller 120, analog-to-digital converter chip, and wireless module. A -5V negative voltage can be generated by chips such as LT3094EMSE#PBF to power analog devices such as operational amplifiers and CD4052 multiplexers, ensuring the dynamic range of analog signal conditioning. The energy storage battery provides backup power for the system, enabling temporary power supply during power outages and improving the system's applicability in various scenarios. Each power supply can be paired with a 100nF / 10uf capacitor, ferrite bead, and inductor to form a filter network to suppress high-frequency ripple and crosstalk. The digital and analog modules are designed with independent grounding to further reduce the impact of power supply noise on measurement accuracy.

[0068] In some implementations, reference Figure 1 The signal transmitting unit 130 includes: The signal excitation unit 131 is electrically connected to the local controller 120 and is used to issue an initial excitation signal; The signal conditioning circuit 132 is electrically connected to the signal excitation unit 131 and is used to condition the initial excitation signal; The constant current source circuit 133 is used to convert the conditioned initial excitation signal into a detection signal, and the detection signal is an AC constant current signal; The first multiplexer 134 is electrically connected to the local controller 120. The first multiplexer has multiple output terminals for connecting different electrodes 151 in the electrode assembly 150 and input terminals for inputting detection signals. The first multiplexer is used to adjust the conduction state between the input terminals and the multiple output terminals of the first multiplexer 134 under the control of the local controller 120.

[0069] The aforementioned signal excitation unit 131 can use an AD5933 chip, which is electrically connected to the local controller 120 via an I2C interface. It can receive excitation frequency and amplitude configuration commands issued by the local controller 120, generate a digital excitation waveform of the target frequency based on the internal DDS module, and convert it into an initial excitation signal in the form of analog voltage through the internal DAC.

[0070] The input terminal of the signal conditioning circuit 132 is electrically connected to the output terminal of the signal excitation unit 131. The signal conditioning circuit 132 may include an operational amplifier and an FIR filter network to amplify, filter and smooth the initial excitation signal in sequence, accurately filter out high-frequency quantization noise and spurious harmonics, complete signal shaping and distortion calibration, and output a low-distortion, high-purity sinusoidal excitation voltage signal to ensure the accuracy of subsequent signal conversion.

[0071] The input terminal of the constant current source circuit 133 is electrically connected to the output terminal of the signal conditioning circuit 132, which can convert the conditioned analog voltage signal into an AC constant current detection signal. This detection signal is a weak and safe current that is imperceptible to the human body, which can effectively eliminate the influence of the load impedance change of the subcutaneous tissue being tested on the excitation current.

[0072] The aforementioned first multiplexer 134 can be a CD4052 multiplexer, whose input terminal is electrically connected to the output terminal of the constant current source circuit 133. It has multiple independent signal output terminals, and each output terminal is adapted to the electrode connection port group. This multiplexer can be electrically connected to the I / O port of the local controller 120. Under the direct control of the local controller 120, the conduction state of the input terminal and each output terminal can be flexibly adjusted to realize the single-channel / multi-channel switching output of the detection signal, meet the needs of multiple measurement points and multiple parts of subcutaneous edema detection at the same time, and switch synchronously with the channel of the subsequent signal receiving unit 140.

[0073] In some implementations, reference Figure 1 The signal receiving unit 140 includes: The second multiplexer 144 is electrically connected to the local controller 120. The second multiplexer 144 has an output terminal and multiple input terminals for receiving feedback signals from different electrodes 151 in the electrode assembly 150. The second multiplexer 144 is used to adjust the conduction state between the input terminal and the multiple output terminals under the control of the local controller 120. The differential amplifier circuit 141 is connected to the output of the second multiplexer 144 and is used to differentially amplify the feedback signal; the passive filter circuit 142 has its input connected to the output of the differential amplifier circuit 141. The signal acquisition unit 143 is used to perform analog-to-digital conversion on the signal output by the passive filter circuit 142 and output a digital acquisition signal.

[0074] The aforementioned second multiplexer 144 is stably electrically connected to the local controller 120 of the edema detection device. Its hardware structure includes one output terminal and multiple input terminals. The number of input terminals matches the number of electrodes 151 in the electrode assembly 150 used for collecting feedback signals. Each input terminal corresponds to a feedback signal from one electrode 151, allowing each electrode 151's feedback signal to be individually connected to the second multiplexer 144. During operation, the second multiplexer 144 is controlled by the local controller 120 and can flexibly adjust the conduction state between its input and output terminals. It can achieve conduction between a single input and output terminal, or time-division conduction between multiple inputs and outputs, thereby enabling selective or time-division reception of feedback signals from different electrodes 151.

[0075] The input terminal of the aforementioned differential amplifier circuit 141 is electrically connected to the output terminal of the second multiplexer 144 to receive the feedback signal transmitted when the second multiplexer 144 is turned on. Since the original feedback signal from the electrode 151 is usually a weak signal and is easily mixed with environmental interference signals, the differential amplifier circuit 141 can differentially amplify the original feedback signal, effectively suppressing common-mode interference such as electromagnetic interference and contact noise. At the same time, it amplifies the weak feedback signal to a preset amplitude range to adapt to the processing requirements of subsequent circuits. The amplification factor can be adjusted according to the actual detection accuracy requirements, making the amplified signal clear and stable, laying the foundation for subsequent filtering processing.

[0076] The input terminal of the passive filter circuit 142 is electrically connected to the output terminal of the differential amplifier circuit 141, and is used to filter the feedback signal after differential amplification. This passive filter circuit 142 can employ a passive RC / LC filter network, which can attenuate and filter high-frequency interference signals in the amplified signal, such as electromagnetic high-frequency noise generated during transmission, while retaining the effective frequency band signals and signals related to the impedance of human soft tissue in the feedback signal, preventing interference signals from affecting the accuracy of subsequent analog-to-digital conversion.

[0077] The signal acquisition unit 143 is electrically connected to the output of the passive filter circuit 142 and also to the local controller 120. Its core function is to perform analog-to-digital conversion on the purified analog signal output from the passive filter circuit 142. The signal acquisition unit 143 can be an analog-to-digital converter (e.g., AD5933), and its sampling frequency and sampling accuracy can be preset according to the impedance detection requirements. After sampling, the analog-to-digital converter outputs the converted digital acquisition signal to the local controller 120, which further processes the digital acquisition signal to finally generate impedance data that can be used for edema assessment.

[0078] It should be noted that, in order to complete the impedance detection, the second multiplexer 144, the differential amplifier circuit 141, the passive filter circuit 142, and the signal acquisition unit 143 can be configured with two channels to separately acquire the current and voltage.

[0079] After receiving the voltage and current digital time-domain signals synchronously acquired and transmitted back by the analog-to-digital conversion unit, the local controller 120 calls the internal arithmetic unit to perform a Fast Fourier Transform (FFT) operation on the time-domain signal, converting the time-domain signal into a frequency-domain signal. Through frequency-domain analysis, the amplitude and phase information corresponding to each frequency component are accurately separated, providing a data basis for the calculation of complex impedance parameters.

[0080] Subsequently, based on Ohm's law in the frequency domain, the local controller 120 calculates the impedance parameters of the subcutaneous tissue at a specified K-th frequency point. First, it extracts the amplitude Ik and phase φK of the current frequency domain signal at that frequency point. Then, it extracts the amplitude VK and phase ψK of the voltage frequency domain signal at the corresponding frequency point. Finally, it calculates the impedance amplitude at that frequency point using the formula |ZK| = VK / IK, and the impedance phase using the formula θK = ψK. The impedance phase at that frequency point is calculated by φK. Finally, by combining the impedance amplitude and phase, the complete complex impedance of the measured part at that frequency point is obtained as ZK=|ZK|∠θK. Based on this complex impedance, key parameters such as resistance and reactance that reflect the impedance characteristics of subcutaneous tissue can be further derived, providing core data for the determination of subcutaneous edema detection results.

[0081] In some embodiments, the electrode assembly 150 includes a plurality of electrodes 151, which can be configured according to the needs of local BIS measurements, such as... Figure 1 The dotted line indicating the selector switch connection on the right side shows that it can also be configured according to the overall BIA measurement requirements, such as... Figure 1 The solid line connecting the selector switch on the right side is shown.

[0082] In some implementations, when the first multiplexer 134 and the second multiplexer 144 are used together, the local BIS measurement and the overall BIA measurement can be completed in one detection process by controlling the selection state of the first multiplexer 134 and the second multiplexer 144.

[0083] In some implementations, such as Figure 3 As shown, each electrode 151 has a connection end at its top, which can be connected to the connection end via a clamping conductive structure 160. The clamping conductive structure 160 can then be electrically connected to the electrode connection port group via a wire.

[0084] In this embodiment, this arrangement facilitates the detachable connection between the clamping conductive structure 160 and the electrode 151, thereby enabling the electrode 151 to be a disposable electrode 151. Compared to reusable electrode 151, it eliminates the need for post-use disinfection and storage, and can effectively reduce the risk of disease transmission when used in hospital clinics.

[0085] like Figure 4 As shown, this application embodiment also provides an edema detection method, which is applied to the system controller 220 of the edema detection system described above. The edema detection method includes steps S100 to S500. Step S100: Acquire the target area image captured by the image acquisition device 210; Step S200: Determine a preset target area in the target area image and highlight the preset target area to guide the operator to move the electrode 151 corresponding to the preset target area to the position corresponding to the preset target area. In step S300, the target area image is displayed through the terminal display unit 230; Step S400: Determine the region information of pole piece 151 in the target region image; In step S500, if the area information of electrode 151 overlaps with the preset target area, a confirmation message is generated and displayed on the terminal display unit 230. The confirmation message is used to instruct the operator to attach the electrode vertically to the preset target area.

[0086] In this embodiment, the image acquisition device 210 of the auxiliary terminal acquires images of the target area, and the system controller 220 determines and highlights the preset target area, which can accurately guide the operator to locate it. At the same time, by recognizing the area information of the electrode 151, a confirmation message is generated when the area information of the electrode 151 overlaps with the preset target area, instructing the operator to perform the pasting operation, so that the electrode 151 is accurately attached. The technical solution of this application embodiment improves the authenticity and consistency of the detection data, provides reliable data support for accurate edema assessment, reduces the difficulty of operation, improves the efficiency of operation, and is suitable for various practical application scenarios such as clinical and continuous follow-up. It can effectively solve the problems of existing edema detection equipment where it is difficult to accurately locate the preset detection site when manually pasting the electrode 151, and the detection data is easily distorted due to the attachment deviation, especially the failure of quantitative analysis in continuous assessment scenarios. It is also extremely suitable for home medical scenarios and is suitable for ordinary users with low operation ability.

[0087] In step S100 above, the operator can first place the human body part to be detected (i.e., the target area, such as the lower leg or forearm) within the acquisition range of the image acquisition device 210, and activate the image acquisition function of the auxiliary terminal. The image acquisition device 210 starts acquisition according to preset parameters (e.g., 1080P resolution, 30 frames per second frame rate) to capture dynamic images of the target area in real time. The image acquisition device 210 converts the acquired analog image signal into a digital signal and transmits it to the system controller 220 through an internal data interface. After receiving the digital image signal, the system controller 220 performs preliminary noise reduction processing (removing noise and shadow interference in the image) to ensure the accuracy of subsequent target area recognition and complete the acquisition of the target area image.

[0088] In step S200 above, the system controller 220 can pre-store the feature parameters of the preset target area and pre-load an image recognition algorithm. The image recognition algorithm is used to analyze the target area image acquired and denoised in step S100, thereby quickly identifying and determining the preset target area in the image. After recognition, the system controller 220 marks the preset target area using visual highlighting methods such as highlighting and box selection, thus intuitively guiding the operator to move the electrode 151 to the corresponding position, achieving precise positioning.

[0089] It should be noted that, in some implementations, for personnel requiring long-term continuous monitoring, complete high-definition images of their arms and lower legs (the limbs to be tested) can be pre-captured. Operators can then manually select and precisely delineate the preset target areas corresponding to each electrode 151 using a touchscreen on an auxiliary terminal. Subsequently, the system controller 220 automatically extracts and stores the relative positional features of this preset target area relative to the entire limb—these features may include the proportion of the preset target area in the limb image, its distance from the limb's edge, and its relative orientation to feature points such as joints. During subsequent tests, when the image acquisition device 210 captures a real-time image of the corresponding limb, the system controller 220 automatically calls upon the pre-stored relative positional features to quickly locate and highlight the preset target area, eliminating the need for repeated manual selection and feature recognition, thus significantly improving detection efficiency.

[0090] When multiple electrode patches 151 need to be attached to the same limb for multi-point synchronous detection, an independent preset target area can be set for each electrode patch 151. Each preset target area is then associated with and stored in relation to the corresponding electrode patch 151's identification information (such as electrode number and attachment location label), forming a one-to-one correspondence. During the actual attachment process, the operator can manually select the electrode patch to be attached through the auxiliary terminal's interactive interface. After receiving the selection command, the system controller 220 automatically retrieves the preset target area location information associated with that electrode patch 151. For example, if the first electrode patch needs to be attached to the first position on the right upper limb, after the operator selects the "first electrode patch" label on the terminal interface, the system controller 220, upon capturing a real-time image of the right upper limb, can quickly locate and highlight the preset target area corresponding to that first position, accurately guiding the operator to complete the attachment of the electrode patch 151 and avoiding positional confusion when attaching multiple electrode patches 151.

[0091] Furthermore, the feature parameters of the preset target area can also be accurately located using image features. After the preset target area is determined by manual selection, the system controller 220 automatically extracts the image features of that area, especially focusing on capturing and storing unique and easily identifiable image features such as birthmarks, patches, and pigmentation, forming a dedicated image feature library. When real-time images of the corresponding limb part are subsequently captured, the system controller 220 calls an image feature matching algorithm to compare the image features in the real-time image with the pre-stored image features of the preset target area. When the matching degree reaches a preset threshold (such as above 95%), the preset target area can be quickly identified and highlighted, further improving the accuracy of positioning and adapting to detection scenarios with slight changes in limb position.

[0092] It should be noted that there are various technical methods in the field of image recognition that can achieve matching of specified images. The appropriate method can be selected according to the actual detection needs, and they will not be listed here.

[0093] In step S300 above, the system controller 220 transmits the target area image, from which the preset target area has been highlighted in step S200, to the terminal display unit 230. The terminal display unit 230 displays the target area image and the highlighted preset target area in real time. Simultaneously, it supports manual zooming and panning of the image according to the operator's needs, facilitating close observation of the details of the preset target area and precise adjustment of the electrode 151's movement position, ensuring the electrode 151 is accurately aligned with the preset target area.

[0094] In step S400 above, the operator, guided by the highlighted information in step S200, holds the electrode 151 and gradually approaches the preset target area. The system controller 220 continuously receives real-time images transmitted by the image acquisition device 210 and simultaneously calls the image recognition algorithm to identify the electrode 151 in the image. The surface of the electrode 151 can be preset with unique identification marks (such as specific colors or patterns). By recognizing these unique marks, the system controller 220 accurately captures the area information of the electrode 151. This area information includes the actual position coordinates of the electrode 151, its placement posture (whether it is parallel to the preset target area), and its coverage area. The system controller 220 updates the area information of the electrode 151 in real time to ensure dynamic tracking of its movement, providing accurate data support for subsequent position comparison.

[0095] In step S500 above, the system controller 220 compares the area information of the electrode 151 obtained in step S400 with the preset target area information determined in step S200 in real time to determine whether the area information of the electrode 151 overlaps with the preset target area. The judgment criteria are: the coverage area of ​​the electrode 151 completely falls within the preset target area, and the placement posture of the electrode 151 is consistent with the reference posture of the preset target area (i.e., perpendicular to the skin surface). When the above overlap conditions are met, the system controller 220 immediately generates confirmation information. This confirmation information is transmitted to the terminal display unit 230 in the form of a combination of text prompts (such as "Electrode position is accurate, please paste the electrode vertically") and sound and light prompts (buzzer prompt + green checkmark icon). After seeing the confirmation information, the operator can press the electrode 151 vertically onto the skin surface of the preset target area according to the prompts to complete the electrode 151 pasting operation.

[0096] In some embodiments, the auxiliary terminal also includes a terminal communication module 240 electrically connected to the system controller 220, the terminal communication module 240 being used to establish a communication connection with the edema detection device; Edema detection methods also include: Acquire impedance data collected by the edema detection equipment; If the impedance data is within the preset detection threshold range, an electrode attachment completion mark is generated and displayed through the terminal display unit 230.

[0097] In this embodiment, after the operator completes the electrode 151 pasting operation according to the steps described above, the edema detection device can automatically / manually start the impedance data acquisition process and collect the impedance data of the human soft tissue in the preset target area of ​​the human body through the electrode 151 that has been pasted on the human body.

[0098] The terminal communication module 240 of the auxiliary terminal is electrically connected to the system controller 220 and has established a stable communication connection with the edema detection device in advance (if the terminal communication module 240 is a wireless communication module, it can be automatically paired and connected when the system starts; if it is a wired communication module, it can be directly connected through a data cable). This communication connection is used to realize bidirectional data transmission between the auxiliary terminal and the edema detection device.

[0099] After the edema detection device acquires impedance data, it transmits the impedance data in real time to the terminal communication module 240 of the auxiliary terminal through its own configured communication module (with terminal communication module 240); after receiving the impedance data, the terminal communication module 240 transmits it to the system controller 220.

[0100] The system controller 220 can store preset detection thresholds. These thresholds are numerical ranges determined through extensive experimental calibration based on the normal physiological impedance characteristics of different human body parts to be tested (lower limbs, upper limbs) and different populations (such as the elderly and adults). Its core function is to determine the adhesion status of the electrode 151 to the human skin. The preset detection threshold range corresponds to the impedance data range when the electrode 151 is stably attached and in good contact. If the impedance data exceeds this range, it indicates that the electrode 151 has problems such as loosening or poor contact.

[0101] The system controller 220 compares the acquired impedance data with a pre-stored preset detection threshold range in real time to determine whether the impedance data falls within the preset detection threshold range. If the comparison result shows that the impedance data is within the preset detection threshold range, it indicates that the electrode 151 has been stably attached to the human skin, with good contact and no problems such as loosening, displacement, or poor contact. At this time, the system controller 220 immediately generates an electrode attachment completion mark. This mark can be in an intuitive and easy-to-understand form, such as a dedicated icon (e.g., a blue "Attachment Complete" mark), text prompts (e.g., "Electrode attachment is firm, edema detection can be initiated"), or color highlighting (e.g., the corresponding area of ​​the terminal display unit 230 turns green). It is clearly displayed through the terminal display unit 230 of the auxiliary terminal, making it easy for operators to quickly confirm the electrode attachment status without the need for manual pressing and checking. If the comparison result shows that the impedance data is not within the preset detection threshold range, the system controller 220 will generate an attachment abnormality prompt (such as "Poor contact of electrode, please press or adjust again") and display it through the terminal display unit 230 to remind the operator to check the attachment of electrode 151. After the operator adjusts the position of the electrode and presses it firmly again, the system controller 220 will repeat this step until the impedance data falls within the preset detection threshold range and an electrode attachment completion mark is generated.

[0102] In some embodiments, the above-described edema detection method further includes: In response to the completion mark of electrode attachment, the impedance data collected by the edema detection device is acquired; Based on the currently acquired impedance data and the previously acquired historical impedance data, determine the impedance change trend; The current edema assessment result is determined based on the impedance change trend and displayed in the terminal display unit 230.

[0103] In this embodiment, when the system controller 220 generates a marker indicating that the electrode 151 is stably attached and in good contact, the system controller 220 can immediately respond to the marker, automatically trigger the impedance data acquisition command of the edema detection device, and transmit the acquisition command to the edema detection device through the terminal communication module 240 of the auxiliary terminal.

[0104] After receiving the acquisition command, the edema detection device starts the formal impedance data acquisition process. Through the electrode 151 that has been attached to the preset target area of ​​the human body, the impedance data of the soft tissue in that area is accurately acquired. During the acquisition process, the local controller 120 of the edema detection device controls the signal sending unit 130 to output a stable detection signal, which is transmitted to the soft tissue of the human body through the electrode 151 used for outputting the signal. Then, the feedback signal is received through the electrode 151 used for receiving, and the feedback signal is transmitted to the local controller 120 by the signal receiving unit 140. The local controller 120 converts the feedback signal into recognizable impedance data, completing a single impedance data acquisition.

[0105] After the data acquisition is completed, the edema detection device transmits the current impedance data to the terminal communication module 240 of the auxiliary terminal in real time through its own adapted communication module, and the terminal communication module 240 transmits it to the system controller 220.

[0106] The system controller 220 has a preset data storage unit for storing the historical impedance data of the object being tested. The historical impedance data is the impedance data collected and processed after the response electrode was attached and marked during multiple previous tests of the object being tested, under the same preset target area and the same test conditions. Each historical impedance data is associated with a corresponding test timestamp, making the data traceable and comparable.

[0107] The system controller 220 retrieves historical impedance data stored in the data storage unit, summarizes and organizes the currently acquired precise impedance data with the historical impedance data, and forms a complete impedance data sequence according to the order of the detection timestamps. Subsequently, the system controller 220 runs a preset data analysis algorithm to perform trend analysis on the impedance data sequence. The trend analysis can be as follows: An edema change curve is generated using current and historical impedance data. Based on this curve, the rate and direction of impedance data change are directly determined through difference calculations and differentiation. Impedance data is negatively correlated with the degree of edema; that is, the more severe the edema, the lower the impedance data; conversely, the less severe the edema, the higher the impedance data. Based on this correlation, the changing patterns of impedance data are further clarified, ultimately determining the impedance change trend (e.g., "continuously decreasing," "continuously increasing," "fluctuating," "tending to stabilize," etc.).

[0108] By analyzing the trend of impedance changes, it can be determined whether the edema is worsening, decreasing, or remaining constant, thus obtaining the current edema assessment result, which can then be displayed. It should be noted that, to facilitate quantitative analysis by operators, parameters such as the rate and direction of change can be displayed simultaneously with the current edema assessment result.

[0109] The edema detection method provided in this application can be executed by an edema detection device. This application uses an edema detection device to execute the edema detection method as an example to illustrate the edema detection device provided in this application.

[0110] This application embodiment also provides an edema detection device, applied to the edema detection system as described above, the edema detection device comprising: The image acquisition module is used to acquire images of the target area collected by the image acquisition device 210; The first positioning module is used to determine the preset target area in the target area image and highlight the preset target area to guide the operator to move the electrode 151 corresponding to the preset target area to the position corresponding to the preset target area. The display module is used to display images of the target area through the terminal display unit 230; The second positioning module is used to determine the area information of the pole piece 151 in the target area image; The confirmation module is used to generate confirmation information when the area information of the electrode 151 overlaps with the preset target area, and to display it on the terminal display unit 230. The confirmation information is used to instruct the operator to paste the electrode vertically to the preset target area.

[0111] This application also provides an electronic device, including: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, it implements the edema detection method as described above. The source table provided in this application can implement each process of the above-described edema detection method embodiments and achieve the same beneficial effects; to avoid repetition, it will not be described again here.

[0112] This application also provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or control module, causing the processor to perform the edema detection method described above, for example, the method described above.

[0113] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0114] The functional blocks shown in the above structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM, floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0115] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0116] It should also be noted that the user information involved in this application, including but not limited to user device information and user personal information, and the data, including but not limited to data used for analysis, stored data, and displayed data, are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with relevant regulations. The acquisition, storage, use, and processing of data in the technical solution of this application all comply with the relevant provisions of national laws and regulations.

[0117] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus, and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0118] The above are merely specific embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. An edema detection system, characterized in that, include: An edema detection device includes a device body and an electrode assembly electrically connected to the device body. The electrode assembly includes multiple electrodes for attaching to different preset target areas. The auxiliary terminal includes an image acquisition device, a system controller, and a terminal display unit. The image acquisition device is used to acquire images of a target area. The system controller is used to determine the preset target area in the target area image and highlight the preset target area. The terminal display unit is used to display the target area image. The system controller is also used to determine the area information of the electrode in the target area image, and generate confirmation information when the area information of the electrode overlaps with the preset target area. The confirmation information is used to instruct the operator to perform the operation of pasting the electrode.

2. The edema detection system according to claim 1, characterized in that, The auxiliary terminal also includes a terminal communication module electrically connected to the system controller. The terminal communication module is used to establish a communication connection with the edema detection device. The system controller is also used to acquire impedance data collected by the edema detection device. When the impedance data is within a preset detection threshold range, an electrode attachment completion mark is generated and displayed through the terminal display unit.

3. The edema detection system according to claim 2, characterized in that, The terminal communication module is a wireless communication module.

4. The edema detection system according to claim 3, characterized in that, The terminal communication module includes at least one of a Bluetooth module and a WiFi module.

5. The edema detection system according to claim 2, characterized in that, The device body includes: A portable housing having an electrode connection port assembly thereon, and a handheld part thereon; The human-computer interaction unit is disposed on the portable housing; A local controller is housed within the portable casing; A signal transmitting unit is disposed inside the portable housing and electrically connected to the local controller for outputting detection signals; A signal receiving unit is disposed inside the portable housing and electrically connected to the local controller for receiving feedback signals; the electrode assembly is electrically connected to the signal transmitting unit and the signal receiving unit through the electrode connection port assembly. The local communication module is electrically connected to the local controller and communicatively connected to the terminal communication module.

6. A method for detecting edema, characterized in that, The edema detection method, applied to the edema detection system as described in any one of claims 1 to 5, comprises: Acquire images of the target area captured by the image acquisition device; A preset target area is determined in the target area image and highlighted to guide the operator to move the electrode corresponding to the preset target area to the position corresponding to the preset target area; The target area image is displayed through the terminal display unit; Determine the region information of the polari in the target region image; If the area information of the electrode overlaps with the preset target area, a confirmation message is generated and displayed on the terminal display unit. The confirmation message is used to instruct the operator to attach the electrode perpendicular to the preset target area.

7. The edema detection method according to claim 6, characterized in that, The auxiliary terminal also includes a terminal communication module electrically connected to the system controller, which is used to establish a communication connection with the edema detection device. The edema detection method also includes: Acquire impedance data collected by the edema detection device; When the impedance data is within the preset detection threshold range, an electrode attachment completion mark is generated and displayed through the terminal display unit.

8. The edema detection method according to claim 7, characterized in that, Also includes: In response to the electrode attachment completion mark, the impedance data collected by the edema detection device is acquired; Based on the currently acquired impedance data and the previously acquired historical impedance data, determine the impedance change trend; The current edema assessment result is determined based on the impedance change trend and displayed in the terminal display unit.

9. An edema detection device, characterized in that, An edema detection device, applicable to any one of claims 1 to 5, comprises: The image acquisition module is used to acquire images of the target area captured by the image acquisition device; The first positioning module is used to determine a preset target area in the target area image and highlight the preset target area to guide the operator to move the electrode corresponding to the preset target area to the position corresponding to the preset target area. The display module is used to display the target area image through the terminal display unit; The second positioning module is used to determine the region information of the polari in the target region image; The confirmation module is used to generate confirmation information when the area information of the electrode overlaps with the preset target area, and to display it on the terminal display unit. The confirmation information is used to instruct the operator to paste the electrode perpendicularly to the preset target area.

10. An electronic device, characterized in that, Electronic devices include processors and memory storing computer program instructions; When the processor executes a computer program, it implements the edema detection method as described in any one of claims 6 to 8.

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