Lower extremity vascular surgery full-cycle toe perfusion monitoring sock

Abstract

The application discloses a lower limb blood vessel operation whole-period toe-distributing perfusion monitoring sock, and belongs to the field of medical devices for blood flow monitoring. The sock comprises a toe-distributing sock body, a blood oxygen monitoring assembly, a foot pressure monitoring assembly, a motion sensor and a main control board. The toe-distributing sock body is provided with at least one toe sleeve at the toe end. The blood oxygen monitoring assembly is arranged on the inner side of the toe sleeve and comprises a plurality of blood oxygen sensors. The foot pressure monitoring assembly comprises a plurality of first pressure sensors arranged on the sole of the toe-distributing sock body. The motion sensor is arranged on the toe-distributing sock body. The main control board is arranged on the toe-distributing sock body and is integrated with a main control module. The main control module is used for receiving blood oxygen signals to calculate blood oxygen saturation and receiving pressure signals and motion posture signals. The monitoring sock can continuously monitor the blood perfusion condition of the patient's foot and calculate the blood oxygen saturation in real time. Moreover, the monitoring sock can also monitor the foot pressure and motion posture of the patient in daily activities after the operation and comprehensively analyze the blood oxygen saturation.

Description

Technical Field

[0001] This application belongs to the field of medical devices for blood flow monitoring after lower extremity vascular surgery, and particularly relates to a toe-separated perfusion monitoring device for lower extremity vascular surgery. Specifically, it is a toe-separated perfusion monitoring sock for the entire cycle of lower extremity vascular surgery. Background Technology

[0002] During lower extremity vascular surgery, surgeons must closely monitor relevant indicators of blood perfusion in the patient's foot, such as toe oxygen saturation and ankle blood pressure, before, during, and after the procedure. Preoperative monitoring is used to assess surgical risks, intraoperative monitoring is used to determine vascular patency to ensure surgical success, and postoperative monitoring is particularly important for preventing complications and avoiding delays in treatment due to undetected drops in blood oxygen levels, which could lead to worsening of the condition or toe necrosis.

[0003] Currently, most methods for monitoring foot blood perfusion rely on finger-clamped oximetry devices, which are used to monitor blood oxygen levels by clipping the device onto the patient's toes. This method is only suitable for monitoring in a specific static posture before or during surgery. Once the patient enters the postoperative recovery period and needs to resume daily activities, the clamped device becomes unsuitable. The clamping position not only severely affects the patient's normal walking but also makes it impossible to accurately monitor foot blood oxygen levels in dynamic situations. Furthermore, even though some wearable foot blood oxygen monitoring devices have emerged, they are still limited to simply acquiring foot blood perfusion data and cannot be combined with dynamic information such as the patient's daily walking and movement posture for comprehensive judgment.

[0004] Therefore, there is an urgent need for a foot blood perfusion monitoring device for lower limb vascular surgery that can not only achieve continuous foot blood oxygenation monitoring throughout the entire preoperative, intraoperative, and postoperative period, but also improve patient comfort and not affect their daily activities. Utility Model Content

[0005] Analysis of the above problems reveals the following shortcomings in existing foot blood perfusion monitoring devices: firstly, they cannot achieve continuous postoperative blood oxygenation monitoring; secondly, even if they possess postoperative monitoring capabilities, they cannot comprehensively assess blood oxygenation status by combining it with the patient's daily postoperative activities. For example, existing devices cannot effectively acquire and analyze crucial information such as the specific impact of changes in body position (standing or sitting) on ​​blood oxygenation, which behaviors are more conducive to postoperative recovery, and which exercise postures are least conducive to maintaining foot blood oxygenation.

[0006] To address the aforementioned issues, this application discloses a toe-specific perfusion monitoring sock for lower limb vascular surgery. Patients can wear this monitoring sock throughout the entire surgical process—before, during, and after surgery. This sock continuously monitors the blood perfusion status of the patient's foot and calculates foot oxygen saturation in real time, effectively ensuring the safety of postoperative recovery. Furthermore, the sock can monitor foot pressure and movement posture during daily activities postoperatively, and perform comprehensive analysis in conjunction with oxygen saturation data to provide doctors with relevant patient data. This data reflects the impact of different time periods and walking postures, such as standing, sitting, squatting, and lying down, on foot oxygen saturation, thereby assisting doctors in providing personalized postoperative recovery recommendations and further improving postoperative recovery efficiency.

[0007] To achieve the above objectives, the specific technical solution of this application is a toe-separated perfusion monitoring sock for the entire cycle of lower limb vascular surgery, comprising a toe-separated sock body, a blood oxygen monitoring component, a foot pressure monitoring component, a motion sensor, and a main control board. The toe of the toe-separated sock body has at least one toe sleeve; the blood oxygen monitoring component is disposed inside the toe sleeve and includes several blood oxygen sensors for collecting blood oxygen signals at the patient's toes; the foot pressure monitoring component includes several first pressure sensors disposed on the sole of the toe-separated sock body for collecting pressure signals generated during foot movement; the motion sensor is disposed on the toe-separated sock body for collecting the patient's movement posture signals; the main control board is disposed on the toe-separated sock body and integrates a main control module, which is connected to the blood oxygen monitoring component, the foot pressure monitoring component, and the motion sensor signals respectively. The main control module receives blood oxygen signals to calculate blood oxygen saturation and receives pressure signals and movement posture signals to calculate the patient's current foot pressure and movement posture data. The main control module can also correlate and compare blood oxygen saturation, foot pressure data and movement posture data, and calculate the blood oxygen saturation comparison results under each movement posture.

[0008] Furthermore, the main control board also integrates a wireless module, which is used to upload the data acquired by the main control module to the mobile device.

[0009] Furthermore, the main control board also integrates a storage module and an alarm module. The storage module can store blood oxygen saturation, foot pressure, and movement posture data calculated by the main control module, and the storage module has preset alarm thresholds; the alarm module can compare blood oxygen saturation with the alarm thresholds, and output an alarm signal when the blood oxygen saturation is lower than the alarm thresholds and upload it through the wireless module.

[0010] Furthermore, the toe of the split-toe sock has a toe sleeve corresponding to each toe, and each toe sleeve has a blood oxygen monitoring component on its inner side to monitor the blood oxygen signal of each toe.

[0011] Furthermore, several blood oxygen sensors are evenly distributed on opposite sides inside the toe sleeve, so that the toes of the patient wearing the toe sleeve appear to be held by several blood oxygen sensors.

[0012] Furthermore, several blood oxygen sensors are installed on the bottom side inside the toe sleeve, so that the toe pads of the patient wearing the toe sleeve come into contact with the several blood oxygen sensors, which can collect the blood oxygen signals of the patient's toe pads.

[0013] Furthermore, the foot pressure monitoring component includes two first pressure sensors, which are respectively located on the inside of the split-toe sock and fitted against the patient's forefoot and heel; a motion sensor is located on the inside of the split-toe sock and fitted against the patient's arch.

[0014] Furthermore, the toe-separating sock body is configured from the inner layer to the outer layer as a contact layer, a circuit layer, a cushioning layer and a cover layer. The contact layer is a medical cotton layer, the circuit layer is a flexible PCB board, the cushioning layer is a silicone porous sponge layer, and the cover layer is a sports fiber layer. The cushioning layer has slots for accommodating foot pressure monitoring components, motion sensors and the main control board.

[0015] Furthermore, the ankle area of ​​the split-toe sock is also surrounded by an ankle cuff that fits snugly against the patient's ankle. The ankle cuff is also equipped with an ankle pressure monitoring component, which includes several second pressure sensors for collecting ankle pressure signals from the patient. The main control module is connected to the ankle pressure monitoring component and receives ankle pressure data.

[0016] Furthermore, the ankle cuff is also equipped with a blood flow monitoring component, which includes several ultrasound probes that can collect arterial blood flow signals from the patient's ankle.

[0017] Beneficial effects: This monitoring sock incorporates a blood oxygen monitoring component within the toe sleeve, including multiple blood oxygen sensors. When worn, the patient's toes directly contact the sensors, enabling real-time acquisition of foot blood oxygen signals. The data is then transmitted to the main control module for calculating blood oxygen saturation. This monitoring sock is suitable for use throughout the entire process—pre-operatively, intra-operatively, and post-operatively—providing continuous feedback on foot blood perfusion without interfering with daily activities, ensuring patient safety during post-operative recovery. The sock also includes foot pressure monitoring and motion posture detection components, simultaneously collecting post-operative motion posture and foot pressure data and uploading it to the main control module. Based on this data, doctors comprehensively analyze the patient's blood oxygen saturation in various postures (standing, walking, sitting, lying down, etc.) and changes in blood oxygen saturation after transitioning from one posture to another. This allows for a more accurate assessment of the patient's post-operative recovery, identifying more favorable positions and movements for improved foot blood oxygenation, and providing more targeted post-operative rehabilitation training recommendations to further improve rehabilitation efficiency.

[0018] The wireless module allows the monitoring sock to connect to external devices, such as mobile devices, cloud servers, or computers. The mobile device can be a smartphone with a corresponding app installed, enabling data upload. Doctors can check the patient's recovery status at any time and be informed of the patient's condition in case of abnormalities, facilitating rapid treatment.

[0019] The main control board is also equipped with a storage module and an alarm module, which work together to achieve data storage management and safety early warning. The storage module records a large amount of real-time monitoring data for easy access by the main control module; it also pre-stores alarm thresholds for blood oxygen saturation. During actual operation, the main control module transmits the real-time monitored blood oxygen saturation and the retrieved alarm thresholds to the alarm module. If the blood oxygen saturation falls below the alarm threshold, the alarm module triggers an alarm, promptly alerting the doctor or patient that their blood oxygen level is dangerous and requires immediate medical attention, thus effectively ensuring patient safety.

[0020] The split-toe socks form independent toe sleeves for each toe, with the aim of placing each toe in an isolated monitoring space to avoid signal crosstalk between adjacent toes, thereby ensuring that the blood oxygen saturation data of each toe can be obtained independently and accurately.

[0021] These monitoring socks offer two pulse oximetry monitoring modes to suit different user needs. One is transmissive monitoring, where several pulse oximetry sensors are positioned to clamp the toes, allowing the monitoring light waves to penetrate the toe tissue laterally for high-precision foot pulse oximetry data acquisition. The other is reflective monitoring, where several sensors are positioned to fit snugly against the patient's toe pads. The monitoring light waves enter the tissue and are reflected back to the pulse oximetry sensors. This configuration eliminates any noticeable foreign body sensation during dynamic activities such as walking, significantly improving patient comfort.

[0022] The first pressure sensor is positioned at two locations on the patient's foot where pressure is most concentrated, enabling accurate capture of changes in foot pressure during movement. Simultaneously, a motion sensor, fitted to the patient's arch, monitors changes in arch shape to effectively determine the patient's posture. Together, these sensors provide comprehensive data support for assessing the patient's movement status.

[0023] The split-toe socks feature a layered design, with the contact layer directly conforming to the patient's skin. The use of medical-grade cotton ensures comfort during wear. The cushioning layer further enhances the patient's comfort and securely encases the monitoring components within the sock, minimizing any foreign body sensation.

[0024] The monitoring sock is also equipped with a second sensor for ankle pressure monitoring and an ultrasound probe for ankle arterial blood flow signal monitoring. The two work together to collect data on the patient's movement status and foot blood oxygen saturation, while simultaneously monitoring changes in ankle pressure and ankle blood flow signals. This provides more data support for comprehensively assessing the patient's foot blood perfusion status and thus judging the patient's recovery status.

[0025] The following description, in a clear and easy-to-understand manner and with reference to the accompanying drawings, will further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the toe-by-toe perfusion monitoring stockings for the entire cycle of lower limb vascular surgery. Attached Figure Description

[0026] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram illustrating a structural embodiment of a toe-by-toe perfusion monitoring sock for the entire course of lower limb vascular surgery.

[0027] Figure 2 A schematic diagram illustrating one embodiment of the sole of a split-toe sock.

[0028] Figure 3 A schematic diagram illustrating one embodiment of a blood oxygen monitoring component.

[0029] Figure 4 A schematic diagram illustrating another embodiment of the toe-by-toe perfusion monitoring socks used to demonstrate the entire process of lower limb vascular surgery.

[0030] Figure 5 This is a schematic diagram illustrating another illustrative implementation of the blood oxygen monitoring component.

[0031] Figure 6 A structural cross-sectional view illustrating an illustrative embodiment of a split-toe sock.

[0032] Figure 7 This is a signal transmission diagram used to illustrate one control method of the main control module.

[0033] Label Explanation 10. Toe-separated sock body; 11. Single toe sleeve; 12. Contact layer; 14. Circuit layer; 16. Cushioning layer; 18. Covering layer; 19. Multi-toe sleeve; 20. Blood oxygen monitoring component; 22. Blood oxygen sensor; 30. First pressure sensor; 40. Motion sensor; 50. Main control board; 60. Ankle cuff; 62. Second pressure sensor; 64. Ultrasonic probe; 70. Toe; 80. Power supply. Detailed Implementation

[0034] To provide a clearer understanding of the technical features, objectives, and effects of this application, specific embodiments of this application are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0035] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0036] like Figure 1 As shown, the lower limb vascular surgery full-cycle toe-separated perfusion monitoring sock includes a toe-separated sock body 10, a blood oxygen monitoring component 20, a foot pressure monitoring component, a motion sensor 40, and a main control board 50. The toe of the toe-separated sock body 10 forms at least one toe sleeve. The toe sleeve includes a single-toe sleeve 11 and a multi-toe sleeve 19. Preferably, the single-toe sleeve 11 is a big toe sleeve, and the other toes share a single multi-toe sleeve 19. The blood oxygen monitoring component 20 is fixedly disposed inside the toe sleeve and includes several blood oxygen sensors 22. In actual products, such as... Figure 1As shown, there are three blood oxygen sensors 22. However, those skilled in the art should understand that the number of blood oxygen sensors 22 can be set to any number according to actual needs. Specifically, a blood oxygen monitoring component 20 is provided inside the single-toe sleeve 11, and a blood oxygen monitoring component 20 is also provided at the position of each toe in the multi-toe sleeve 19. For example... Figure 1 , Figure 2 , Figure 3 As shown, the blood oxygen monitoring component 20 can be installed on the bottom side inside the toe sleeve. When the patient wears the monitoring sock, their big toe is inserted into the single toe sleeve 11, and the other toes are inserted into the multi-toe sleeve 19. The toe pads are in contact with the blood oxygen sensor 22 of the blood oxygen monitoring component 20, allowing the blood oxygen sensor 22 to collect the blood oxygen signal of each toe. This method of placing the blood oxygen monitoring component 20 in contact with the toe pads of the patient's toes is a reflective monitoring method, such as... Figure 3 As shown, the monitoring light waves enter the tissue and are reflected back to the blood oxygen sensor 22 to obtain blood oxygen data. The advantage of this setup is that it allows patients to experience no obvious foreign body sensation during dynamic activities such as walking, significantly improving patient comfort.

[0037] like Figure 2 As shown, the foot pressure monitoring component includes several first pressure sensors 30 disposed on the sole of the split-toe sock body 10. These first pressure sensors 30 are used to collect pressure signals generated during patient foot movement. Preferably, the foot pressure monitoring component includes two first pressure sensors 30, which are respectively disposed on the inner side of the split-toe sock body 10, conforming to the patient's forefoot and heel—the two locations where the pressure on the patient's foot is most concentrated. This allows for accurate capture of foot pressure changes during patient movement, further determining whether the patient is currently standing or not. In practical use, the data acquired by the foot pressure monitoring component can be combined with data acquired by the blood oxygen monitoring component to specifically differentiate blood oxygen saturation. For example, red and blue can be used to mark the blood oxygen saturation data of the patient in standing and non-standing states, respectively, to help doctors better understand the patient's foot blood perfusion.

[0038] like Figure 1 As shown, the motion sensor 40 is positioned on the inner side of the split-toe sock body 10, conforming to the patient's arch, and is used to collect the patient's motion posture signals. Preferably, the motion sensor 40 can be a six-axis gyroscope MPU6050, positioned 3cm above the arch. The six-axis gyroscope MPU6050 is embedded within a 3D-printed hollow bracket and protected by thermoplastic polyurethane. The placement of the motion sensor 40 can remove motion artifacts from the monitoring data of the blood oxygen monitoring component 20, improving the accuracy of blood oxygen monitoring.

[0039] like Figure 1As shown, the main control board 50 is located on the side of the split-toe sock body 10 and is made of a flexible PCB board, allowing it to conform to the curved surface of the patient's foot. The main control board 50 integrates a main control module, which can be an STM32L4. The main control module is connected to the blood oxygen monitoring component 20, the foot pressure monitoring component, and the motion sensor 40. The main control module receives blood oxygen signals to calculate blood oxygen saturation, receives pressure signals and motion posture signals to calculate the patient's current foot pressure and motion posture data, and can correlate and compare blood oxygen saturation, foot pressure data, and motion posture data to calculate the blood oxygen saturation comparison results under various motion postures. Alternatively, doctors can perform comprehensive analysis based on the obtained data to accurately determine the patient's actual condition. In actual product manufacturing, the monitoring sock is controlled by a power supply 80, which internally powers all components. The power supply 80 can be a button battery or a battery pack, and is preferably located on the outer side of the ankle of the split-toe sock body 10 to reduce the impact on the patient's foot. Specifically, commonly used power modules on the market can be used directly.

[0040] In one illustrative embodiment of the main control board 50, a wireless module is also integrated. This wireless module uploads data acquired by the main control board to a mobile device. The mobile device can be a smartphone with a corresponding app installed. The app wirelessly connects to the monitoring sock to upload data, allowing patients and doctors to promptly understand changes in blood oxygen saturation and quickly assess the patient's condition for treatment in case of abnormalities. The wireless module can employ either or both of Bluetooth BLE 5.2 and NB-IoT dual-mode. Bluetooth BLE 5.2 enables short-range data transmission, while NB-IoT enables long-range data transmission, thus meeting data transmission requirements.

[0041] The main control board 50 also integrates a storage module and an alarm module. The storage module stores blood oxygen saturation, foot pressure, and movement posture data calculated by the main control module, allowing for convenient data storage and retrieval. The storage module also pre-stores alarm thresholds. The alarm module compares blood oxygen saturation with the alarm thresholds and outputs an alarm signal when blood oxygen saturation falls below the threshold, uploading the data wirelessly. Specifically, the alarm module uses one or both of these: a buzzer for audible alarm or a vibration motor for vibration. The buzzer is a piezoelectric buzzer, positioned near the ankle on the toe-separating sock 10 to avoid obstructing sound transmission and alert the caregiver to any abnormalities. The vibration motor is a linear motor, positioned on the instep of the toe-separating sock 10, allowing the patient to directly perceive the vibration.

[0042] The alarm thresholds are divided into three levels: Level 1 (early warning), when SpO2 is less than 5% of the baseline value, the alarm module will continuously push information to the mobile APP for 10 minutes via the wireless module and perform a short vibration; Level 2 (lower alert), when SpO2 is less than 90%, the alarm module will continuously vibrate and sound a buzzer to the mobile APP via the wireless module for 5 minutes and issue an alarm; and Level 3 (lower alert), when SpO2 is less than 85% or the value drops by more than 10% within one hour, the alarm module will sound an emergency alarm and call a doctor via the wireless module.

[0043] In one illustrative embodiment of the split-toe sock body, such as Figure 4 As shown, the toe of the split-toe sock body 10 has a single-toe sleeve 11 corresponding to each toe. A blood oxygen monitoring component 20 is disposed inside each single-toe sleeve 11 to monitor the blood oxygen signal of each toe, ensuring that each blood oxygen monitoring component 20 exists in an independent space. Specifically, as... Figure 4 , Figure 5 As shown, the blood oxygen monitoring component 20 is disposed on opposite sides within the single-toe sleeve 11. When the patient wears the monitoring sock, each toe is inserted into its corresponding single-toe sleeve 11, and the blood oxygen monitoring component 20 clamps the patient's toes. In actual use, the blood oxygen monitoring component 20 can be configured to clamp on the left and right sides of the patient's toes, or on the top and bottom sides of the toes. This configuration is a transmissive monitoring method, allowing the monitoring light wave to penetrate the toe tissue laterally, achieving high-precision foot blood oxygen data acquisition. Of course, those skilled in the art will understand that the single-toe sleeve 11 can employ the aforementioned reflective or transmissive monitoring. However, the multi-toe sleeve 19 can only employ reflective monitoring.

[0044] In one illustrative embodiment of the blood oxygen sensor, the blood oxygen sensor 22 uses a MAX30102 chip, which integrates a dual-wavelength LED, a receiver, an optical device, and low-noise electronic circuitry with ambient light suppression. The dual-wavelength LED uses red light at 660nm and infrared light at 880nm, and the receiver uses a high-sensitivity photodiode with a signal-to-noise ratio >90dB.

[0045] In another illustrative embodiment of the split-toe sock body, such as Figure 6As shown, the toe-separating sock body 10 is configured from the inner layer to the outer layer as a contact layer 12, a circuit layer 14, a cushioning layer 16, and a cover layer 18. The contact layer 12 is a medical-grade cotton layer made of medical-grade blended cotton. The circuit layer 14 is made of a flexible PCB board and is embedded in a thermoplastic polyurethane (TPU) film to ensure wearing comfort. The cushioning layer 16 is made of silicone porous sponge, which makes the pressure distribution more uniform. The cushioning layer 16 has slots to accommodate corresponding modules, such as foot pressure monitoring components, motion sensors 40, main control board 50, and circuits, and is connected to the circuit layer 14 in sequence. The design of the cushioning layer 16 minimizes the impact of components on wearing comfort. The cover layer 18 is made of sports fibers.

[0046] In another illustrative embodiment of the split-toe sock, the blood oxygen monitoring component 20, foot pressure monitoring component, motion sensor 40, main control board 50, power supply 80 and other components are connected by serpentine copper foil wiring. The serpentine copper foil wiring gives the wiring a certain degree of flexibility, which can adapt to different patients' foot sizes and avoid the phenomenon of wiring breakage when patients with different foot sizes wear the socks.

[0047] like Figure 1 , Figure 4 As shown, the ankle cuff 60 is also wrapped around the ankle of the split-toe sock body 10. The ankle cuff 60 can fit snugly against the patient's ankle. The ankle cuff 60 is also equipped with an ankle pressure monitoring component, which includes several second pressure sensors 62 for collecting ankle pressure signals. The several second pressure sensors 62 are arranged in a ring and are MEMS pressure sensors. The main control module is connected to the ankle pressure monitoring component and receives ankle pressure data. Specifically, the ankle cuff 60 is also equipped with a miniature air pump for inflation and deflation management. The main control module controls the miniature air pump to inflate the air bladder inside the ankle cuff 60, making it fit more tightly against the ankle.

[0048] The ankle cuff 60 also incorporates a blood flow monitoring component, which includes several Doppler ultrasound probes 64 positioned between the various second pressure sensors 62. These Doppler ultrasound probes acquire arterial blood flow signals from the patient's ankle and then assess the arterial waveform using continuous wave Doppler. By combining ankle pressure and arterial waveform data, the patient's condition is comprehensively evaluated. Abnormal ankle pressure with normal waveform suggests vascular calcification, requiring further assessment using toe pressure. Normal ankle pressure with abnormal waveform may indicate early arterial stenosis, warranting attention to potential lesions. The synergistic effect of both methods enables precise classification and also helps physicians determine the severity of the lesion.

[0049] like Figure 7The diagram illustrates the signal transmission relationships between the various components within the toe-separating sock. This monitoring sock connects to an app via the wireless module of the main control board 50, enabling full-process, full-cycle patient status monitoring. When the patient wears the monitoring sock before and during surgery and activates it via the app, the foot pressure monitoring component, motion sensor 40, and blood oxygen monitoring component 20 immediately start simultaneously. Given that patients are often in a static, fixed position before and during surgery, the system uses the blood oxygen monitoring component 20 as the core working unit, focusing on collecting blood oxygen signals and transmitting them back to the main control module. At this time, all raw data is simultaneously stored in the storage module and uploaded to the app in real-time via the wireless module for doctors to read. Simultaneously, the main control module retrieves alarm thresholds from the storage module, which are compared in real-time by the alarm module. When the monitored value falls below a preset condition, an alarm is immediately triggered to assist doctors in timely intervention of the patient's condition.

[0050] During the postoperative recovery phase, the foot pressure monitoring component, motion sensor 40, and blood oxygen monitoring component 20 work together. The main control module collects data from all three sources for comprehensive analysis and uploads the data to the app via a wireless module, enabling simultaneous real-time monitoring by both the doctor and patient. Based on this data, the doctor comprehensively analyzes the patient's blood oxygen saturation in various postures, including standing, walking, sitting, and lying down, as well as changes in blood oxygen saturation after transitioning from one posture to another. This allows for a more accurate assessment of the patient's postoperative recovery, identifying more favorable positions and movements for improved foot blood oxygenation, and providing more targeted postoperative rehabilitation training recommendations to further improve rehabilitation efficiency.

[0051] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0052] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent implementations or modifications made without departing from the spirit of the art of this application, such as combinations, divisions or repetitions of features, should be included within the scope of protection of this application.

Claims

1. A toe-specific perfusion monitoring sock for the entire course of lower limb vascular surgery, characterized in that, It includes: The toe of the split-toe sock has at least one toe sleeve. A blood oxygen monitoring component is disposed on the inside of the toe sleeve. The blood oxygen monitoring component includes several blood oxygen sensors, which are used to collect blood oxygen signals at the patient's toes. A foot pressure monitoring component includes several first pressure sensors disposed on the sole of the split-toe sock body, the several first pressure sensors being used to collect pressure signals generated when the patient's foot moves; A motion sensor is disposed on the split-toe sock body, and the motion sensor is used to collect the patient's motion posture signals; The main control board is located on the split-toe sock body. The main control board integrates a main control module. The main control module is connected to the blood oxygen monitoring component, the foot pressure monitoring component, and the motion sensor signal respectively. The main control module is used to receive the blood oxygen signal to calculate the blood oxygen saturation, and to receive the pressure signal and the motion posture signal to calculate the patient's current foot pressure and motion posture data.

2. The toe-by-toe perfusion monitoring socks for the entire lower limb vascular surgery process according to claim 1, characterized in that, The main control board also integrates a wireless module, which is used to upload the data acquired by the main control module to the mobile device.

3. The toe-by-toe perfusion monitoring socks for the entire lower limb vascular surgery cycle according to claim 2, characterized in that, The main control board also integrates: The storage module is capable of storing the blood oxygen saturation, foot pressure, and movement posture data calculated by the main control module, and the storage module has preset alarm thresholds. An alarm module is capable of comparing the blood oxygen saturation with the alarm threshold, and outputting an alarm signal when the blood oxygen saturation is lower than the alarm threshold and uploading it through the wireless module.

4. The toe-by-toe perfusion monitoring socks for the entire lower limb vascular surgery process according to claim 1, characterized in that, The toe of the split-toe sock has a toe sleeve corresponding to each toe, and the blood oxygen monitoring component is provided on the inner side of each toe sleeve to monitor the blood oxygen signal of each toe.

5. The toe-by-toe perfusion monitoring socks for lower limb vascular surgery according to claim 4, characterized in that, The blood oxygen monitoring components are disposed on opposite sides inside the toe sleeve, so that the toes of the patient wearing the toe-separating sock are in a state where they are held by the blood oxygen monitoring components.

6. The toe-by-toe perfusion monitoring socks for the entire lower limb vascular surgery process according to claim 4, characterized in that, The blood oxygen monitoring component is located on the bottom side inside the toe sleeve, so that the toe pads of the patient wearing the toe-separating socks come into contact with the blood oxygen monitoring component, and the blood oxygen monitoring component can collect the blood oxygen signal of the patient's toe pads.

7. The toe-by-toe perfusion monitoring socks for lower limb vascular surgery according to claim 1, characterized in that, The foot pressure monitoring component includes two first pressure sensors, which are respectively disposed on the inner side of the split-toe sock and fitted against the patient's forefoot and heel; the motion sensor is disposed on the inner side of the split-toe sock and fitted against the patient's arch.

8. The toe-by-toe perfusion monitoring socks for lower limb vascular surgery according to claim 1, characterized in that, The split-toe sock body is configured from the inner layer to the outer layer as a contact layer, a circuit layer, a cushioning layer and a cover layer. The contact layer is a medical cotton layer, the circuit layer is a flexible PCB board, the cushioning layer is a silicone porous sponge layer, and the cover layer is a sports fiber layer. The cushioning layer has a slot for accommodating the foot pressure monitoring component, the motion sensor and the main control board.

9. The toe-by-toe perfusion monitoring socks for lower limb vascular surgery according to claim 1, characterized in that, The split-toe sock body is also surrounded by an ankle cuff that fits snugly against the patient's ankle. The ankle cuff is also equipped with an ankle pressure monitoring component, which includes several second pressure sensors for collecting ankle pressure signals from the patient. The main control module is connected to the ankle pressure monitoring component and receives the ankle pressure data.

10. The toe-by-toe perfusion monitoring socks for lower limb vascular surgery according to claim 9, characterized in that, The ankle cuff is also equipped with a blood flow monitoring component, which includes several ultrasound probes that can collect arterial blood flow signals in the patient's ankle.

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