Medical thrombus detection stretch sock and thrombus detection method

Abstract

The invention discloses a medical thrombus detection stretch sock and a thrombus detection method, and relates to the technical field of medical instruments.The medical thrombus detection stretch sock comprises a sock body, the sock body is provided with a wearing cavity for lower limb wearing, and a pressure adjusting assembly is embedded in the side wall of the wearing cavity; the pressure adjusting assembly is used for adjusting the pressure applied to the lower limbs by the sock body and comprises an annular air bag and a protection limiting piece, and the protection limiting piece is arranged on the outer side of the annular air bag and used for guiding the annular air bag to be inflated and expanded towards the wearing cavity and protecting the outer side of the annular air bag; a thrombus flexible sensor for detecting thrombus is arranged on the inner surface of the wearing cavity. The thrombus flexible sensor is arranged in the wearing cavity of the sock body, when the pressure applied to the lower limb by the sock body is adjusted to be within the preset threshold range, the thrombus flexible sensor is automatically started to collect physical parameters such as expansion change of the blood vessel of the lower limb in real time, and the early detection and continuous monitoring functions of thrombus are achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a medical thrombosis detection elastic stocking and a thrombosis detection method. Background Technology

[0002] Medical compression stockings are a type of Class II medical device with a gradient pressure design. They promote venous blood return in the lower limbs by gradually reducing pressure from the ankle to the thigh. They are mainly used to prevent and treat diseases such as varicose veins, deep vein thrombosis, and chronic venous insufficiency. They are suitable for people who sit or stand for long periods of time, pregnant women, and postoperative patients.

[0003] A utility model patent with publication number CN207804477U in China discloses a medical elastic stocking. This patent uses multiple independent annular airbags on the stocking to intelligently adjust the tightness of each part of the stocking, thereby regulating the pressure applied to the lower limbs. However, this patent has a relatively limited function and cannot perform thrombosis detection and monitoring on the patient's lower limbs during use.

[0004] To address these technical issues, we propose a medical thrombosis detection elastic stocking and a thrombosis detection method. Summary of the Invention

[0005] This invention provides a medical thrombosis detection elastic stocking and a thrombosis detection method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a medical thrombosis detection elastic stocking, comprising a stocking body, wherein the stocking body is provided with a wearing cavity for wearing on the lower limb, and a pressure regulating component is embedded in the side wall of the wearing cavity, the pressure regulating component being used to regulate the pressure applied to the lower limb by the stocking body; The pressure regulating assembly includes an annular airbag and a protective limiting member. The protective limiting member is disposed on the outside of the annular airbag and is used to guide the annular airbag to inflate toward the wearable cavity and to protect the outside of the annular airbag. The inner surface of the wearable cavity is provided with a flexible thrombus sensor for detecting thrombi.

[0007] Preferably, the pressure regulating assembly further includes a pressure sensor disposed on the inner surface of the annular airbag; The pressure sensor is positioned toward the wearable cavity and is offset from the thrombus flexible sensor.

[0008] Preferably, the protective limiting member is sheet-shaped and multiple sheets are provided, with the multiple protective limiting members evenly arranged on the outer surface of the annular airbag.

[0009] Preferably, a telescopic interval is provided between two adjacent protective limiting members.

[0010] Preferably, the pressure regulating components are provided in multiple sets, and the multiple sets of pressure regulating components are distributed along the vertical direction of the sock body.

[0011] Preferably, the sock body is provided with an intelligent control component, which includes a microcontroller, a micro air pump, and a power module.

[0012] Preferably, the pressure sensor, the thrombus flexible sensor, and the micro air pump are all electrically connected to the microcontroller.

[0013] Preferably, the micro air pump is connected to multiple connecting air tubes, and the other end of each of the multiple connecting air tubes is connected to the annular air bladder of multiple sets of pressure regulating components.

[0014] Preferably, each of the connecting air pipes is individually equipped with an electric exhaust valve for releasing air, and the electric exhaust valve is electrically connected to the microcontroller.

[0015] This invention also provides a method for detecting lower extremity thrombosis, which is applied to the aforementioned medical thrombosis detection elastic stockings, comprising the following steps: S1. The microcontroller presets a pressure threshold for each group of pressure regulating components; S2. The pressure data between the lower limb and the annular airbag is detected by the pressure sensor, and the pressure data is converted into an electrical signal and sent to the microcontroller. S3. The microcontroller calculates the pressure difference based on the preset pressure threshold and the received pressure data; S4. Based on the pressure difference, the microcontroller inflates or deflates the annular airbag so that the pressure between the lower limb and the annular airbag is within the range of the preset pressure threshold. The microcontroller controls the micro air pump or the electric exhaust valve of the connecting air tube to inflate or deflate the annular airbag. S5. The microcontroller activates the thrombus flexible sensor, which detects the pressure applied to it by the lower limb and performs thrombus detection and monitoring. Specifically, when the pressure between the lower limb and the annular airbag is within the range of the preset pressure threshold, the thrombus flexible sensor is activated and performs thrombus detection and monitoring.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: By installing a flexible thrombus sensor in the wearing cavity of the sock, when the pressure applied by the sock to the lower limb is adjusted to a preset threshold range, the flexible thrombus sensor automatically starts to collect physical parameters such as the expansion and change of blood vessels in the lower limb in real time, so as to realize the function of early detection and continuous monitoring of thrombus.

[0017] By incorporating multiple protective limiting components on the outer side of the annular airbag, when the airbag inflates, these components restrict some of the outward expansion of air and concentrate the air towards the wear cavity. This reduces the amount of air required for inflation, increases the inflation and contraction speed of the annular airbag, and thus improves pressure regulation efficiency. Furthermore, the protective limiting components also protect the outer side of the annular airbag, effectively preventing punctures from sharp objects or damage from friction, significantly improving the mechanical durability and service life of the pressure regulation components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 for Figure 1 Sectional view at point AA.

[0020] Figure 3 for Figure 2 A magnified view of part C.

[0021] Figure 4 for Figure 1 Sectional view at BB.

[0022] Figure 5 for Figure 4 A magnified schematic diagram of part D.

[0023] Figure 6 This is a schematic diagram of the pressure regulating component of the present invention.

[0024] Figure 7 This is a flowchart of the thrombosis detection method of the present invention.

[0025] In the diagram: 100 - sock body; 101 - wearing cavity; 200 - intelligent control component; 201 - connecting air tube; 300 - pressure regulating component; 301 - ring airbag; 302 - pressure sensor; 303 - protective limiting component; 304 - telescopic interval; 400 - thrombus flexible sensor. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] Please see Figures 1 to 6 : This invention provides a medical thrombosis detection elastic stocking, comprising a stocking body 100 made of elastic material, the stocking body 100 having a wearing cavity 101 for wearing on the lower limb, the bottom of the wearing cavity 101 being open, and a pressure regulating component 300 embedded in the side wall of the wearing cavity 101, the pressure regulating component 300 being used to regulate the pressure applied by the stocking body 100 to the lower limb; the pressure regulating component 300 includes an annular air bladder 301 and a protective limiting member 303, the protective limiting member 303 being disposed outside the annular air bladder 301, the protective limiting member 303 being used to guide the annular air bladder 301 to inflate towards the wearing cavity 101 and to protect the outside of the annular air bladder 301; a flexible thrombosis sensor 400 for detecting thrombosis is disposed on the inner surface of the wearing cavity.

[0030] like Figures 1 to 4As shown, the patient can put on the sock 100 through the wearing cavity 101. Because the bottom of the wearing cavity 101 is open, the patient's toes can extend out of the sock 100 during wear, making it more comfortable and promoting local ventilation, reducing the accumulation of moisture and heat. The sock 100 is made of elastic material, allowing it to deform elastically. A miniature air pump inflates the annular air bladder 301, which expands to tightly fit the sock 100 to the lower limb, increasing the pressure between the sock 100 and the lower limb.

[0031] like Figure 2 As shown, multiple sets of pressure adjustment components 300 are provided, and these multiple sets of pressure adjustment components 300 are evenly distributed along the vertical direction of the sock body 100. These pressure adjustment components 300 are arranged circumferentially and correspond to different heights of the lower limbs, thereby achieving multi-segment independent pressure control from the ankle, calf to the thigh.

[0032] In other embodiments (not shown in the figures), the pressure regulating components 300 can also be arranged in a non-uniform manner. For example, in areas with a dense distribution of blood vessels, multiple sets of pressure regulating components 300 can be densely arranged, and the diameter of the annular air bladder 301 of each set of pressure regulating components 300 is different, so as to perform more detailed and precise pressure regulation on specific parts.

[0033] The pressure regulating assembly 300 also includes a pressure sensor 302, which is disposed on the inner surface of the annular air bladder 301. The pressure sensor 302 is positioned towards the wearing cavity 101 and is staggered from the thrombus flexible sensor 400 to avoid mutual interference. The sock body 100 is also provided with an intelligent control assembly 200, which is fixedly installed on the outer surface of the sock body 100. The intelligent control assembly 200 includes a microcontroller, a micro air pump, and a power module, wherein the pressure sensor 302, the thrombus flexible sensor 400, and the micro air pump are all electrically connected to the microcontroller.

[0034] In this embodiment, the power module is a rechargeable lithium battery, which provides power to electronic components such as the microcontroller, micro air pump, pressure sensor 302, and thrombus flexible sensor 400. The microcontroller can automatically control the on / off switching of the micro air pump, pressure sensor 302, and thrombus flexible sensor 400, and can also connect to the pressure sensor 302 and thrombus flexible sensor 400 for signal acquisition. The pressure sensor 302 of each pressure regulating component 300 can individually detect the pressure between the corresponding annular airbag 301 and the lower limb, and simultaneously convert the pressure information into an electrical signal and send it to the microcontroller.

[0035] The Thrombus Flexible Sensor 400 is an externally attached, physical flexible sensor made of a 200-micron-thick, highly efficient flexible nanofiber material. It can fit closely to the patient's lower limbs (such as the calf), thereby sensing minute changes in physical parameters such as local tissue stiffness, pressure distribution, or blood flow impedance caused by thrombosis. These changes are then converted into voltage signals and sent to a microcontroller, enabling thrombosis detection and long-term thrombosis monitoring.

[0036] In this embodiment, the miniature air pump is connected to multiple connecting air pipes 201 via a multi-channel connector. Each connecting air pipe 201 leads to an annular airbag 301 in an independent pressure regulating assembly 300. This connection method enables independent allocation and control of the air path, ensuring that each group of airbags can be inflated and deflated independently without interference. Each connecting air pipe 201 is equipped with an electric exhaust valve, which is electrically connected to the microcontroller and receives command signals from it to realize the active deflation function of the air path.

[0037] Specifically, multiple connecting air tubes 201 are connected to the outlet of a micro air pump via an integrated tap. This tap has multiple independent air path interfaces, enabling the airflow generated by the air pump to be distributed to designated airbags as needed. Each connecting air tube 201 is also equipped with an electrically operated air intake valve at an appropriate position between the tap and the airbag. This valve is also independently controlled by the microcontroller. By controlling the opening and closing of the electrically operated air intake valve, the microcontroller can precisely adjust the on / off state between the corresponding air path and the air pump, thereby realizing the inflation operation of a specific annular airbag 301.

[0038] The microcontroller also has the ability to independently control each electrically operated exhaust valve. When the pressure on a certain lower limb exceeds a preset threshold, the microcontroller sends an opening signal to the corresponding electrically operated exhaust valve in that air path. After the valve opens, the compressed air in the annular airbag 301 is rapidly discharged through the electrically operated exhaust valve, and the annular airbag 301 contracts, thereby reducing the pressure of the sock 100 on the lower limb at that location. This control process is responsive and precise, helping to maintain the stability and comfort of the therapeutic pressure.

[0039] As described above, when using these elastic stockings, a preset pressure threshold is first set for each pressure adjustment layer component 300 via a microcontroller. This threshold can be individually adjusted according to the patient's actual clinical needs. During the wearing of the stocking 100, the pressure sensors 302 of each layer detect the actual pressure value of the corresponding lower limb area in real time, convert the detected pressure data into electrical signals, and transmit them to the microcontroller.

[0040] After receiving the pressure data, the microcontroller compares it with a preset pressure threshold in real time and independently determines whether the current pressure of each part is within the set range. If the pressure value detected by a pressure regulating component 300 is lower than the preset threshold, the microcontroller issues a command to activate the electric air intake valve corresponding to the annular airbag 301. The micro air pump then inflates the annular airbag 301 through the corresponding connecting air tube 201. After inflation, the airbag gradually expands, pushing the sock body 100 to fit more tightly against the lower limb, thereby increasing the local pressure. When the pressure reaches the preset threshold, the microcontroller closes the air intake valve, the inflation process stops, and the pressure in that area is maintained within the required range.

[0041] Conversely, if the pressure at a certain point exceeds a preset threshold, the microcontroller will activate the electric exhaust valve of the corresponding air path, allowing the gas in the annular airbag 301 to be released at a controllable rate. As the airbag gradually contracts, the pressure exerted by the sock 100 on the lower limb at that point decreases accordingly. When the pressure sensor 302 detects that the actual pressure has returned to the preset range, the microcontroller immediately closes the exhaust valve, terminating the deflation process, thereby ensuring that the pressure remains stable near the target value.

[0042] Therefore, through the aforementioned intelligent inflation and deflation control mechanism, the tightness of the stocking 100 can be dynamically adjusted in different parts, thereby achieving precise management of the pressure on the lower limbs. Since each pressure regulating component 300 operates independently, the microcontroller can perform localized pressure adjustment for specific areas without affecting the pressure status of other parts. This independent control capability allows the elastic stockings to create clinically appropriate pressure gradients in different segments of the lower limbs, such as the ankle, calf, and thigh, thereby optimizing the hemodynamic environment.

[0043] In other embodiments (not shown in the figures), the intelligent control component 200 may further integrate an alarm. When the thrombus flexible sensor 400 detects an abnormal signal indicating a possible thrombus, the alarm can emit an audible and visual alert or vibration, and the intelligent control component 200 can activate a corresponding health protection mechanism according to a preset program. Furthermore, a dedicated mobile application can be developed to support this invention. The intelligent control component 200 connects to the mobile application via wireless communication (such as Bluetooth or Wi-Fi). Users or medical personnel can flexibly adjust the preset pressure thresholds of each pressure regulating component 300 through the mobile application and view historical detection data in real time. The mobile application can also embed intelligent analysis algorithms to analyze and process the monitoring data, assess the patient's thrombus risk level, and provide early warnings. Simultaneously, this invention can also be configured with a data receiving terminal for medical personnel, to which the intelligent control component 200 transmits real-time data wirelessly. This allows medical personnel to remotely and continuously monitor the patient's physiological parameters and pressure status while the patient is wearing compression stockings. Once an abnormality is detected or a thrombus risk is determined, alarm information can be received promptly and medical intervention can be initiated.

[0044] like Figure 6 As shown, in this embodiment, the protective limiting member 303 is sheet-shaped and has multiple pieces, which are evenly arranged on the outer surface of the annular airbag 301. A telescopic interval 304 is provided between two adjacent protective limiting members 303.

[0045] By incorporating multiple protective limiting components 303, the outer deformation of the annular airbag 301 is effectively constrained during inflation, guiding the airbag to expand primarily towards the wearing cavity 101, thus allowing the internal gas to act more concentratedly on the lower limb surface. This structure not only significantly improves gas utilization efficiency but also reduces the required inflation volume and shortens inflation time when the target pressure is reached, thereby greatly enhancing the response speed and overall efficiency of pressure regulation. Similarly, during deflation, the constraint effect of the protective limiting components 303 on the outer side of the airbag makes the gas discharge path smoother and the deflation speed significantly faster, further enhancing the dynamic pressure regulation capability. Furthermore, this structure significantly improves the overall efficiency of the pressure regulation component 300 by optimizing the gas movement direction and controlling volume deformation.

[0046] The faster and more efficient inflation and deflation process reduces the operating time of electronic components such as the microcontroller and micro-pump, significantly lowering overall system power consumption and resulting in excellent energy savings. This not only helps extend the continuous wear time of the compression stockings and improve battery life, but also reduces the need for frequent charging or battery replacements, enhancing the product's practicality and user experience, making it particularly suitable for thrombosis prevention scenarios requiring long-term wear.

[0047] By incorporating a multi-piece protective limiting structure on the outer side of the annular airbag 301, its protection against external mechanical damage is effectively enhanced. This structure significantly reduces the risk of airbag rupture due to accidental scratches, collisions, or punctures by sharp objects, thereby improving the reliability and service life of the pressure regulating component 300. Furthermore, the protective limiting piece 303 acts as a physical barrier, buffering and dispersing forces on the outer side of the annular airbag 301, preventing concentrated stress from directly acting on the surface of the annular airbag 301. This reduces the potential damage to the structure of the annular airbag 301 from instantaneous impacts and maintains the stability of the pressure distribution between the annular airbag 301 and the lower limb, minimizing the impact of external interference on therapeutic pressure and ensuring the accuracy and safety of the pressure regulation process.

[0048] By setting a reasonable telescopic interval 304 between adjacent protective limiting members 303, the protective limiting plate 303 has a certain degree of freedom of movement during the inflation or deflation of the annular airbag 301. This structure effectively avoids mechanical interference of the protective limiting member 303 with the normal deformation of the annular airbag 301, ensuring that the annular airbag 301 can expand and contract smoothly and uniformly, thereby ensuring the stability and consistency of the pressure regulation process.

[0049] The arrangement density of the protective limiting components 303 and the telescopic interval 304 can be flexibly configured according to specific clinical application scenarios and functional requirements. For example, in areas requiring more precise pressure control or with higher external risks, a higher density of protective limiting components 303 can be used in conjunction with a smaller telescopic interval 304 to enhance the protective effect on the annular airbag 301 and improve local mechanical strength and anti-interference capabilities. In sections with a larger pressure adjustment range or requiring greater deformation space, the interval can be appropriately increased to accommodate more significant volume changes.

[0050] In summary, by setting a thrombus flexible sensor 400 in the wearing cavity 101 of the sock body 100, when the pressure applied by the sock body 100 to the lower limb is adjusted to a preset threshold range, the thrombus flexible sensor 400 automatically starts to collect physical parameters such as the expansion changes of blood vessels in the lower limb in real time, thereby realizing the function of early detection and continuous monitoring of thrombi.

[0051] By providing multiple protective limiting members 303 on the outer side of the annular airbag 301, when the annular airbag 301 is inflated, the protective limiting members 303 can restrict some of the air from expanding outward and concentrate the air more towards the wearing cavity 101, thereby reducing the amount of air required during inflation, increasing the inflation and contraction speed of the annular airbag 301, and thus improving the pressure regulation efficiency. Furthermore, the protective limiting members 303 also protect the outer side of the annular airbag 301, effectively preventing it from being punctured by sharp objects or damaged by friction, significantly improving the mechanical durability and service life of the pressure regulating component 300.

[0052] Please see Figure 7 : This invention also provides a method for detecting lower extremity thrombosis, which is applied to medical thrombosis detection elastic stockings, comprising the following steps: S1. The microcontroller presets the pressure threshold for each pressure adjustment component 300. Medical staff or patients can set target pressure values ​​for different parts of the body through the microcontroller or external devices connected to the microcontroller, such as a mobile APP, to create a gradient change in the pressure applied by the sock 100 to the lower limbs.

[0053] S2. Pressure data between the lower limb and the annular airbag 301 is detected by pressure sensor 302, and the pressure data is converted into an electrical signal and sent to the microcontroller. The pressure detected by each pressure regulating component 300 is independently sent to the microcontroller, allowing the microcontroller to individually detect and monitor the pressure of each pressure regulating component.

[0054] S3. The microcontroller calculates the pressure difference between the preset pressure threshold and the real-time received pressure data, and determines whether the current annular airbag 301 should be inflated or deflated based on the sign of the difference.

[0055] S4. Based on the obtained pressure difference, the microcontroller controls the electric valve of the corresponding air path to perform inflation or deflation operations so that the pressure in that part is maintained within the preset threshold range.

[0056] Specifically, if the pressure detected at a certain part is lower than the preset threshold, the air intake valve of that part is opened, and the micro air pump is started to inflate the annular airbag 301 to increase the pressure; if the pressure is higher than the preset threshold, the electric exhaust valve is controlled to open to release gas to reduce the pressure until the pressure returns to the set range.

[0057] S5. The microcontroller activates the thrombus flexible sensor 400, which detects the pressure applied to it by the lower limbs to perform thrombus detection and monitoring.

[0058] After pressure regulation is completed and the pressure at each site stabilizes within a preset threshold range, the microcontroller activates the flexible thrombus sensor 400 to begin thrombus detection and monitoring. The flexible thrombus sensor 400 determines the presence of thrombus risk by sensing the pressure applied to the lower limbs and its distribution changes. Activating thrombus detection under stable pressure effectively avoids interference with the sensor signal that may occur during pressure regulation, thereby improving the accuracy and reliability of the detection results.

Claims

1. A medical thrombosis detection elastic stocking, comprising a stocking body, characterized in that: The sock body has a wearing cavity for wearing on the lower limbs, and a pressure regulating component is embedded in the side wall of the wearing cavity. The pressure regulating component is used to adjust the pressure applied by the sock body to the lower limbs. The pressure regulating assembly includes an annular airbag and a protective limiting member. The protective limiting member is disposed on the outside of the annular airbag and is used to guide the annular airbag to inflate toward the wearable cavity and to protect the outside of the annular airbag. The inner surface of the wearable cavity is provided with a flexible thrombus sensor for detecting thrombi.

2. The medical thrombosis detection elastic stockings according to claim 1, characterized in that: The pressure regulating assembly also includes a pressure sensor disposed on the inner surface of the annular airbag; The pressure sensor is positioned toward the wearable cavity and is offset from the thrombus flexible sensor.

3. The medical thrombosis detection elastic stockings according to claim 1, characterized in that: The protective limiting member is sheet-shaped and has multiple pieces, which are evenly arranged on the outer surface of the annular airbag.

4. The medical thrombosis detection elastic stockings according to claim 3, characterized in that: An expansion joint is provided between two adjacent protective limiting members.

5. The medical thrombosis detection elastic stockings according to claim 1, characterized in that: The pressure regulating components are provided in multiple sets, and the multiple sets of pressure regulating components are distributed along the vertical direction of the sock body.

6. The medical thrombosis detection elastic stockings according to claim 2, characterized in that: The sock is equipped with an intelligent control component, which includes a microcontroller, a micro air pump, and a power module.

7. The medical thrombosis detection elastic stockings according to claim 6, characterized in that: The pressure sensor, the thrombus flexible sensor, and the micro air pump are all electrically connected to the microcontroller.

8. The medical thrombosis detection elastic stockings according to claim 7, characterized in that: The micro air pump is connected to multiple connecting air tubes, and the other end of each connecting air tube is connected to an annular air bladder of a set of pressure regulating components.

9. The medical thrombosis detection elastic stockings according to claim 8, characterized in that: Each of the connecting air pipes is individually equipped with an electric vent valve for releasing air, and the electric vent valve is electrically connected to the microcontroller.

10. A method for detecting lower extremity thrombosis, applied to the medical thrombosis detection elastic stockings as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. The microcontroller presets a pressure threshold for each group of pressure regulating components; S2. The pressure data between the lower limb and the annular airbag is detected by the pressure sensor, and the pressure data is converted into an electrical signal and sent to the microcontroller. S3. The microcontroller calculates the pressure difference based on the preset pressure threshold and the received pressure data; S4. Based on the pressure difference, the microcontroller inflates or deflates the annular airbag so that the pressure between the lower limb and the annular airbag is within the range of the preset pressure threshold. The microcontroller controls the micro air pump or the electric exhaust valve of the connecting air tube to inflate or deflate the annular airbag. S5. The microcontroller activates the thrombus flexible sensor, which detects the pressure applied to it by the lower limb and performs thrombus detection and monitoring. Specifically, when the pressure between the lower limb and the annular airbag is within the range of the preset pressure threshold, the thrombus flexible sensor is activated and performs thrombus detection and monitoring.

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