Blood supply blocking early warning method and system based on tourniquet

Abstract

The invention discloses a blood supply blocking early warning method and system based on a tourniquet, and the method comprises the steps: preliminarily adjusting the tightness of the tourniquet according to the thickness of a target part in the process of sleeving the target part of the body of a user with the intelligent tourniquet, so as to achieve the blood supply blocking in the blood drawing process; verifying the pressure applied to the target part by the tourniquet after the preliminary adjustment, adjusting the tightness of the tourniquet for the second time according to the pressure, and obtaining the pressure after the second adjustment; and monitoring the pressure maintaining time after secondary adjustment, and performing blood supply blocking early warning according to the pressure maintaining time. By utilizing the embodiment of the invention, the pressure applied to the target part can be monitored in real time in the operation process, the duration of blood supply blocking can be monitored, early warning can be given out in time, the risk in medical operation is reduced, and the safety and comfort of a patient are protected.

Description

Technical Field

[0001] The present invention belongs to the field of medical technology, and in particular to a blood supply blockage early warning method and system based on a compression cuff. Background Art

[0002] A cuff is a common tool used in medical procedures, especially during blood draws. Its main function is to block venous blood flow by applying pressure to a specific part of the arm, making it easier for doctors to find and puncture veins. This process not only helps to improve the success rate of blood draws, but also reduces the amount of bleeding during blood draws and increases the visibility of veins. Although cuffs play an important role in the blood draw process, there are still some potential risks and problems in their use. For example, during blood draws, prolonged blood supply blockage may cause local tissue ischemia, causing pain, congestion or other complications. Especially during busy medical operations, medical staff may forget to release the cuff in time, thereby increasing the risk to patients. Summary of the invention

[0003] The purpose of the present invention is to provide a blood supply blockage warning method and system based on a compression cuff to address the deficiencies in the prior art. The method and system can monitor the pressure applied to the target part in real time during the operation, monitor the duration of blood supply blockage, issue warnings in time, reduce the risks in medical operations, and protect the safety and comfort of patients.

[0004] An embodiment of the present application provides a blood supply blockage warning method based on a compression cuff, the method comprising:

[0005] When the smart cuff is placed on the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing;

[0006] Verify the pressure applied to the target part by the cuff after the initial adjustment, adjust the tightness of the cuff for a second time according to the pressure, and obtain the pressure after the second adjustment;

[0007] The pressure maintenance time after the secondary adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time.

[0008] Optionally, the preliminarily adjusting the tightness of the cuff according to the thickness of the target part includes:

[0009] Measuring the perimeter of the target part, and calculating the thickness coefficient of the target part according to the perimeter and the standard size value of the same target part in the standard size database;

[0010] The thickness coefficient is used to calculate the initial tightness of the cuff to be initially adjusted.

[0011] Optionally, the calculating the preliminary tightness of the cuff to be initially adjusted by using the thickness coefficient includes:

[0012] In a preset tightness parameter database, according to the current thickness coefficient, adjacent pairs of thickness coefficients are searched, and the corresponding tightness range is obtained, wherein the preset tightness parameter database includes a group of sequentially arranged thickness coefficients, and one thickness coefficient corresponds to one tightness range;

[0013] The initial tightness of the cuff to be initially adjusted is calculated according to the current thickness coefficient, the adjacent thickness coefficient pairs and the corresponding tightness range.

[0014] Optionally, the checking of the pressure applied to the target part by the initially adjusted cuff, secondarily adjusting the tightness of the cuff according to the pressure, and obtaining the secondarily adjusted pressure includes:

[0015] Obtaining the pressure of the cuff applied to the target part after preliminary adjustment, and verifying whether the pressure exceeds a preset pressure threshold;

[0016] If the pressure exceeds the preset pressure threshold, the current tightness of the cuff is adjusted back until the pressure does not exceed the preset pressure threshold to correct the initial adjustment error.

[0017] Optionally, the blood supply blockage warning according to the pressure maintenance time includes:

[0018] When the pressure maintenance time reaches the preset pressurization time, a timeout warning of blood supply blockage is continuously sent;

[0019] If the duration of the timeout warning exceeds the preset warning duration, the emergency adjustment mechanism is activated to urgently call back the current pressure to the preset safety pressure value and forcibly maintain the preset safety duration.

[0020] Another embodiment of the present application provides a blood supply blockage warning system based on a compression cuff, the system comprising:

[0021] The first adjustment module is used to preliminarily adjust the tightness of the cuff according to the thickness of the target part when the smart cuff is placed on the target part of the user's body, so as to block the blood supply during the blood drawing process;

[0022] The second adjustment module is used to verify the pressure applied to the target part by the cuff after the initial adjustment, and to adjust the tightness of the cuff according to the pressure for a second time to obtain the pressure after the second adjustment;

[0023] The early warning module is used to monitor the pressure maintenance time after the secondary adjustment, and to issue a blood supply blockage early warning according to the pressure maintenance time.

[0024] Yet another embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, wherein the computer program is configured to execute any of the above methods when running.

[0025] Yet another embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute any of the methods described above.

[0026] Compared with the prior art, the present invention provides a blood supply blockage warning method based on a compression cuff. During the process of placing the intelligent compression cuff on the target part of the user's body, the tightness of the compression cuff is preliminarily adjusted according to the thickness of the target part, so as to block the blood supply during blood drawing; the pressure applied to the target part by the compression cuff after the preliminarily adjustment is verified, the tightness of the compression cuff is secondarily adjusted according to the pressure, and the pressure after the second adjustment is obtained; the maintenance time of the pressure after the second adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time, so that the pressure applied to the target part can be monitored in real time during the operation, the duration of the blood supply blockage can be monitored, and a warning can be issued in time, thereby reducing the risks in medical operations and protecting the safety and comfort of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A hardware structure block diagram of a computer terminal for a blood supply blockage warning method based on a compression cuff provided in an embodiment of the present invention;

[0028] Figure 2 A flow chart of a blood supply blockage warning method based on a compression cuff provided in an embodiment of the present invention;

[0029] Figure 3 A schematic structural diagram of a blood supply blockage warning system based on a compression cuff provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.

[0031] The embodiment of the present invention firstly provides a blood supply blockage warning method based on a compression cuff, which can be applied to electronic devices such as computer terminals, specifically ordinary computers, etc.

[0032] The following describes it in detail by taking running on a computer terminal as an example. Figure 1 The hardware structure block diagram of a computer terminal of a blood supply blockage warning method based on a compression cuff provided in an embodiment of the present invention. Figure 1 As shown, the computer terminal may include one or more ( Figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Optionally, the computer terminal may also include a transmission device 106 for communication functions and an input and output device 108. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0033] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / modules corresponding to the blood supply blocking early warning method based on the compression cuff in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0034] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0035] See also Figure 2 The embodiment of the present invention provides a blood supply blockage warning method based on a compression cuff, which may include the following steps:

[0036] S201, when the smart cuff is placed on the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing;

[0037] Specifically, the target part can be the upper arm, forearm, leg, etc. When drawing blood, the cuff is used to apply pressure to block blood flow, thereby improving the visibility of the vein and reducing the risk of bleeding. This step involves preliminarily adjusting the tightness of the cuff according to the thickness characteristics of the target part during the process of placing the smart cuff on the target part of the user's body. The smart cuff can be equipped with a regulating valve to adjust the tightness, a display screen to display the pressure, and so on.

[0038] Specifically, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part, the circumference of the target part can be measured, and the thickness coefficient of the target part is calculated according to the circumference and the standard size value of the same target part in the standard size database;

[0039] By directly measuring the circumference of the target part, numerical information about the patient's physical characteristics is obtained. This data is the basis for the subsequent calculation of the thickness coefficient and the preliminary adjustment of the tightness of the cuff. The measured circumference is compared with a pre-established standard size database to calculate the thickness coefficient of the target part. This coefficient is used to quantify the relative thickness of the target part and provide a basis for subsequent adjustment of the tightness of the cuff. Through this process, personalized matching can be achieved to ensure that the pressure applied by the cuff meets the specific needs of the patient.

[0040] Among them, a standard size database including multiple variables such as body shape, gender, age and weight can be established, covering the standard size data of the circumference of different target parts of various populations; the ratio of the circumference to the standard size value can be directly calculated as the thickness coefficient K.

[0041] The thickness coefficient is used to calculate the initial tightness of the cuff to be initially adjusted.

[0042] This step uses the calculated thickness coefficient to determine the initial tightness suitable for the patient, thus laying the foundation for subsequent pressure adjustment. The initial tightness calculated scientifically can accurately reflect the characteristics of the target area, ensuring that the cuff will not cause excessive pressure or discomfort to the patient when implementing blood supply occlusion, while also effectively achieving the purpose of blood supply occlusion.

[0043] Specifically, the thickness coefficient is used to calculate the preliminary tightness of the cuff to be initially adjusted, and adjacent thickness coefficient pairs can be searched in a preset tightness parameter database according to the current thickness coefficient, and the corresponding tightness range can be obtained, wherein the preset tightness parameter database includes a group of thickness coefficients arranged in sequence, and one thickness coefficient corresponds to one tightness range;

[0044] By matching the currently calculated thickness coefficients, the system can find the adjacent thickness coefficient pairs to obtain the corresponding tightness range. This process ensures that the cuff tightness adjustment is based on the relative changes in actual body characteristics, thereby ensuring a smooth transition during the adjustment process and reducing the discomfort caused by the adjustment. The tightness parameter database can be built based on population research and clinical data to ensure scientificity and accuracy, for example:

[0045] K = 0.6, the corresponding tightness range is 20-30 mmHg;

[0046] K = 0.9, the corresponding tightness range is 30-40 mmHg;

[0047] K=1.2, the corresponding tightness range is 40-50mmHg.

[0048] According to the current thickness coefficient, the adjacent thickness coefficient pairs and the corresponding tightness range, the initial tightness of the cuff to be initially adjusted is calculated. Among them, one initial tightness can be:

[0049]

[0050] Wherein, T is the preliminary tightness, K_low and K_high are the adjacent pairs of thickness coefficients of thickness coefficient K, T_low and T_high are the corresponding tightness ranges, or can also be a specific tightness value therein. The unit of the preliminary tightness value is usually mmHg (millimeters of mercury), which is a commonly used pressure unit in medicine.

[0051] Through formula calculation, an accurate initial tightness is calculated based on the current thickness coefficient and the tightness range of the adjacent thickness coefficients, making the adjustment of the compression cuff more scientific and reasonable, which can effectively improve the effect of blood supply blocking and reduce the discomfort caused to the patient.

[0052] S202, verifying the pressure applied to the target part by the cuff after the initial adjustment, adjusting the tightness of the cuff for a second time according to the pressure, and obtaining the pressure after the second adjustment;

[0053] This step is to ensure that the pressure generated by the cuff applied to the target area is within a reasonable range. After the initial adjustment of the tightness, the system will detect the applied pressure value and compare it with the preset safe pressure threshold. If the pressure exceeds the safe threshold, the tightness needs to be adjusted again to reduce the pressure to a safe range.

[0054] Through calibration and secondary adjustment, the problem of over-compression or under-compression caused by initial adjustment errors can be effectively avoided. This not only protects the safety of patients and reduces the risk of bleeding and other complications, but also improves the success rate and efficiency of blood drawing operations. In addition, the automation of this process also reduces the burden on medical staff, making the blood drawing process more humane and intelligent.

[0055] Specifically, the pressure applied to the target part by the initially adjusted cuff may be obtained to verify whether the pressure exceeds a preset pressure threshold;

[0056] First, the real-time pressure data of the cuff applied to the target area can be measured by the built-in sensor and compared with the preset pressure threshold set by the system. Real-time monitoring of applied pressure can quickly identify potential risks caused by excessive pressure. By identifying improper pressure at an early stage, timely measures can be taken to ensure the patient's physiological safety and prevent local tissue ischemia, pain and other discomfort.

[0057] If the pressure exceeds the preset pressure threshold, the current tightness of the cuff is adjusted back until the pressure does not exceed the preset pressure threshold to correct the initial adjustment error.

[0058] When it is detected that the pressure applied to the target part exceeds the preset safety threshold, the system will automatically start to adjust the tightness of the cuff to reduce the applied pressure and ensure that it is within the safe range. This callback function provides an automated protection mechanism that can quickly respond to changing pressure conditions, ensuring that the patient will not be harmed by incorrect initial adjustments, while also improving the intelligence of the device.

[0059] S203, monitoring the pressure maintenance time after the secondary adjustment, and issuing a blood supply blockage warning according to the pressure maintenance time.

[0060] In this step, the system continuously monitors the pressure applied to the target area after the secondary adjustment, and records the duration for which the pressure remains unchanged. The pressure maintenance time refers to the period of time during which the pressure applied to the target area remains unchanged after the secondary adjustment. Once this pressure maintenance time reaches the preset safety threshold, the system will trigger a blood supply blockage warning to notify medical staff of the situation. The process of monitoring the pressure maintenance time is critical to ensuring patient safety. Maintaining high pressure for too long may cause local tissue ischemia, pain or other complications, so this early warning mechanism can identify potential risks in a timely manner and intervene. This function not only improves the intelligence level of the equipment, but also provides accurate information to medical staff, ensuring that they can take timely and effective measures to protect the health of patients.

[0061] Specifically, a blood supply blockage warning is performed according to the pressure maintenance time, and when the pressure maintenance time reaches a preset pressurization time, a timeout warning of blood supply blockage is continuously sent;

[0062] During the monitoring period, if the continuously recorded pressure maintenance time reaches the preset pressurization time, the system will automatically generate and send a timeout warning of blood supply interruption. This warning is usually communicated to medical staff through various means such as sound and light alarms, mobile phone notifications or monitor displays. For example, the preset pressurization time can be set to 10 minutes, etc.

[0063] The purpose of this mechanism is to prevent tissue ischemia or other physiological problems caused by maintaining pressure for too long. Through early warning, medical staff can be reminded to intervene in time, re-evaluate and adjust the settings of the compression cuff to ensure that the patient does not suffer unnecessary risks.

[0064] If the duration of the timeout warning exceeds the preset warning duration, the emergency adjustment mechanism is activated to urgently call back the current pressure to the preset safety pressure value and forcibly maintain the preset safety duration.

[0065] If the sent timeout warning fails to receive a timely response within the preset time, the system will automatically start the emergency adjustment mechanism. This mechanism will immediately call back the currently applied pressure, adjust it to the preset safety pressure value, and force the pressure state to be maintained for a preset safety period to ensure that the blood supply to the target area is restored in time. For example, the preset warning time can be set to 30 seconds, the preset safety time can be set to 2 minutes, and so on.

[0066] This measure ensures that even if medical staff fail to respond in time, the system can still automatically protect the patient and reduce potential harm caused by excessive pressure. This comprehensive safety protection mechanism enhances the reliability of the overall medical process and improves patient safety.

[0067] It can be seen that in the process of applying the smart cuff to the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing; the pressure applied to the target part by the cuff after the preliminarily adjustment is verified, the tightness of the cuff is secondarily adjusted according to the pressure, and the pressure after the second adjustment is obtained; the maintenance time of the pressure after the second adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time, so that the pressure applied to the target part can be monitored in real time during the operation, the duration of blood supply blockage can be monitored, and a warning can be issued in time to reduce the risks in medical operations and protect the safety and comfort of patients.

[0068] Another embodiment of the present invention provides a blood supply blockage warning system based on a compression cuff, see Figure 3 , the system may include:

[0069] The first adjustment module 301 is used to preliminarily adjust the tightness of the cuff according to the thickness of the target part when the smart cuff is placed on the target part of the user's body, so as to block the blood supply during the blood drawing process;

[0070] The second adjustment module 302 is used to verify the pressure of the cuff applied to the target part after the initial adjustment, and to adjust the tightness of the cuff according to the pressure for a second time, and obtain the pressure after the second adjustment;

[0071] The early warning module 303 is used to monitor the pressure maintenance time after the secondary adjustment, and to issue a blood supply blockage early warning according to the pressure maintenance time.

[0072] It can be seen that in the process of applying the smart cuff to the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing; the pressure applied to the target part by the cuff after the preliminarily adjustment is verified, the tightness of the cuff is secondarily adjusted according to the pressure, and the pressure after the second adjustment is obtained; the maintenance time of the pressure after the second adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time, so that the pressure applied to the target part can be monitored in real time during the operation, the duration of blood supply blockage can be monitored, and a warning can be issued in time to reduce the risks in medical operations and protect the safety and comfort of patients.

[0073] An embodiment of the present invention further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0074] Specifically, in this embodiment, the above storage medium may be configured to store a computer program for performing the following steps:

[0075] S201, when the smart cuff is placed on the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part, so as to block the blood supply during the blood drawing process;

[0076] S202, verifying the pressure applied to the target part by the cuff after the initial adjustment, adjusting the tightness of the cuff for a second time according to the pressure, and obtaining the pressure after the second adjustment;

[0077] S203, monitoring the pressure maintenance time after the secondary adjustment, and issuing a blood supply blockage warning according to the pressure maintenance time.

[0078] It can be seen that in the process of applying the smart cuff to the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing; the pressure applied to the target part by the cuff after the preliminarily adjustment is verified, the tightness of the cuff is secondarily adjusted according to the pressure, and the pressure after the second adjustment is obtained; the maintenance time of the pressure after the second adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time, so that the pressure applied to the target part can be monitored in real time during the operation, the duration of blood supply blockage can be monitored, and a warning can be issued in time to reduce the risks in medical operations and protect the safety and comfort of patients.

[0079] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0080] Specifically, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0081] Specifically, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0082] S201, when the smart cuff is placed on the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part, so as to block the blood supply during the blood drawing process;

[0083] S202, verifying the pressure applied to the target part by the cuff after the initial adjustment, adjusting the tightness of the cuff for a second time according to the pressure, and obtaining the pressure after the second adjustment;

[0084] S203, monitoring the pressure maintenance time after the secondary adjustment, and issuing a blood supply blockage warning according to the pressure maintenance time.

[0085] It can be seen that in the process of applying the smart cuff to the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing; the pressure applied to the target part by the cuff after the preliminarily adjustment is verified, the tightness of the cuff is secondarily adjusted according to the pressure, and the pressure after the second adjustment is obtained; the maintenance time of the pressure after the second adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time, so that the pressure applied to the target part can be monitored in real time during the operation, the duration of blood supply blockage can be monitored, and a warning can be issued in time to reduce the risks in medical operations and protect the safety and comfort of patients.

[0086] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A blood supply blockage warning method based on a compression cuff, characterized in that: The method comprises: When the smart cuff is placed on the target part of the user's body, the tightness of the cuff is preliminarily adjusted according to the thickness of the target part to block the blood supply during blood drawing; Verify the pressure applied to the target part by the cuff after the initial adjustment, adjust the tightness of the cuff for a second time according to the pressure, and obtain the pressure after the second adjustment; The pressure maintenance time after the secondary adjustment is monitored, and a blood supply blockage warning is issued according to the pressure maintenance time.

2. The method according to claim 1, characterized in that The method of preliminarily adjusting the tightness of the cuff according to the thickness of the target part includes: Measuring the perimeter of the target part, and calculating the thickness coefficient of the target part according to the perimeter and the standard size value of the same target part in the standard size database; The thickness coefficient is used to calculate the initial tightness of the cuff to be initially adjusted.

3. The method according to claim 2, characterized in that The step of calculating the initial tightness of the cuff to be initially adjusted by using the thickness coefficient includes: In a preset tightness parameter database, according to the current thickness coefficient, adjacent pairs of thickness coefficients are searched, and the corresponding tightness range is obtained, wherein the preset tightness parameter database includes a group of sequentially arranged thickness coefficients, and one thickness coefficient corresponds to one tightness range; The initial tightness of the cuff to be initially adjusted is calculated according to the current thickness coefficient, the adjacent thickness coefficient pairs and the corresponding tightness range.

4. The method according to claim 3, characterized in that The checking of the pressure applied to the target part by the initially adjusted cuff, secondary adjustment of the tightness of the cuff according to the pressure, and obtaining the secondary adjusted pressure include: Obtaining the pressure of the cuff applied to the target part after preliminary adjustment, and verifying whether the pressure exceeds a preset pressure threshold; If the pressure exceeds the preset pressure threshold, the current tightness of the cuff is adjusted back until the pressure does not exceed the preset pressure threshold to correct the initial adjustment error.

5. The method according to claim 4, characterized in that The blood supply blockage warning according to the pressure maintenance time includes: When the pressure maintenance time reaches the preset pressurization time, a timeout warning of blood supply blockage is continuously sent; If the duration of the timeout warning exceeds the preset warning duration, the emergency adjustment mechanism is activated to urgently call back the current pressure to the preset safety pressure value and forcibly maintain the preset safety duration.

6. A blood supply blockage warning system based on a cuff, characterized in that: The system comprises: The first adjustment module is used to preliminarily adjust the tightness of the cuff according to the thickness of the target part when the smart cuff is placed on the target part of the user's body, so as to block the blood supply during the blood drawing process; The second adjustment module is used to verify the pressure applied to the target part by the cuff after the initial adjustment, and to adjust the tightness of the cuff according to the pressure for a second time to obtain the pressure after the second adjustment; The early warning module is used to monitor the pressure maintenance time after the secondary adjustment, and to issue a blood supply blockage early warning according to the pressure maintenance time.

7. The system according to claim 6, characterized in that The first adjustment module is specifically used to: Measuring the perimeter of the target part, and calculating the thickness coefficient of the target part according to the perimeter and the standard size value of the same target part in the standard size database; The thickness coefficient is used to calculate the initial tightness of the cuff to be initially adjusted.

8. The system according to claim 7, characterized in that The first adjustment module is specifically used to: In a preset tightness parameter database, according to the current thickness coefficient, adjacent pairs of thickness coefficients are searched, and the corresponding tightness range is obtained, wherein the preset tightness parameter database includes a group of sequentially arranged thickness coefficients, and one thickness coefficient corresponds to one tightness range; The initial tightness of the cuff to be initially adjusted is calculated according to the current thickness coefficient, the adjacent thickness coefficient pairs and the corresponding tightness range.

9. A storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the method according to any one of claims 1 to 5 when executed.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 5.

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