Radial artery hemostasis compression device based on PID (Proportion Integration Differentiation) adjustment

Abstract

The invention discloses a radial artery hemostasis compression device based on PID (Proportion Integration Differentiation) adjustment, which comprises a compression air bag and a wrist strap structure for binding the compression air bag on a wrist, and is characterized by further comprising a pressure sensor attached to a radial artery, a balance air hole is formed in the compression air bag, and the compression air bag is connected with a precise air channel through the balance air hole. The pneumatic mechanism is communicated with the compression air bag through a precise air passage and a balance air hole; an air pressure sensor for monitoring the pressure of the compression air bag is also arranged in the compression air bag; and the control module is used for controlling the pneumatic mechanism to operate. According to the invention, through a PID adjustment mode, the pressure change in the compression air bag can better accord with the pressure change curve of the radial artery. And the compression force of the compression air bag on the puncture position of the radial artery is slightly higher than the real-time pulse pressure of the radial artery. While hemostasis is ensured, weak blood flow of the radial artery can be maintained as much as possible. A breathing space is provided for the vascular wall, and endothelial injury caused by long-time mechanical compression is prevented.

Description

Technical Field

[0001] This invention relates to the field of radial artery hemostasis technology, specifically to a radial artery hemostasis compression device based on PID regulation. Background Technology

[0002] Because of the high pressure in the radial artery, prolonged and precise compression of the puncture site is necessary after radial artery interventional procedures to prevent hematoma or bleeding. Currently, there are two main types of compression hemostasis devices available: mechanical knob type and balloon type.

[0003] Mechanical knob-type devices rely heavily on manual adjustment by medical staff. Once the compression device is applied to the patient's arm, it cannot automatically adjust according to fluctuations in the patient's pulse and blood pressure. The pressure control is not precise and can sometimes have adverse effects on the patient.

[0004] A search revealed Chinese patent CN 107252336A, which discloses an intelligent automatic radial artery hemostasis compression device. This patent's technical solution, through the judgment of pressure and bleeding, utilizes a control system to automatically perform pressure-reducing compression operations, aiming to solve the problems of cumbersome operation, low efficiency, and patient discomfort associated with existing radial artery compressors. However, this technical solution only designs the function of gradually reducing pressure based on the compression time; it still does not achieve the goal of providing appropriate compression force based on real-time pressure changes in the radial artery. Summary of the Invention

[0005] The purpose of this invention is to provide a radial artery hemostasis compression device based on PID regulation, which has the advantage of real-time dynamic adjustment of compression force and solves the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a radial artery hemostasis compression device based on PID regulation, comprising a compression airbag and a wristband structure for securing the compression airbag to the wrist, and further comprising a pressure sensor fitted to the radial artery; the compression airbag is provided with a balancing air hole, through which a precision airway is connected; it also comprises a pneumatic mechanism, which is connected to the compression airbag through the precision airway and the balancing air hole; a pressure sensor for monitoring the pressure of the compression airbag is also provided inside the compression airbag; It also includes a control module for controlling the operation of the pneumatic mechanism.

[0007] Preferably, the control module includes a chip, a human-machine interface, and a battery, wherein the battery is signal-connected to the chip, the human-machine interface, the pressure sensor, the air pressure sensor, and the pneumatic mechanism.

[0008] Preferably, a pre-auxiliary air passage is connected between the balancing air hole and the pneumatic mechanism, and a solenoid valve is also included, wherein the solenoid valve is disposed between the pneumatic mechanism and the pre-auxiliary air passage.

[0009] Preferably, the wristband structure is a self-adhesive strap. Preferably, the length of the self-adhesive strap is adjustable.

[0010] Preferably, the wristband structure includes two auxiliary pressurizing airbags connected to both ends of the compression airbag, and the two auxiliary pressurizing airbags are connected to each other through a ventilator; it also includes a self-adhesive strap, the two ends of which are respectively connected to the auxiliary pressurizing airbags, and the length of the self-adhesive strap is adjustable.

[0011] Preferably, one of the auxiliary pressurization airbags is connected to an air injection tube, the other end of which is connected to a second pneumatic device powered by a battery and connected to a chip signal.

[0012] Preferably, one of the auxiliary pressurizing airbags is provided with a connecting ring at its end, and one end of the auxiliary pressurizing airbag can be bonded to the outer surface of the auxiliary pressurizing airbag itself after passing around the connecting ring, and one of the auxiliary pressurizing airbags is provided with a second manual air injection port.

[0013] Preferably, it also includes a backup pulse pressure monitor, which is signal-connected to the control module.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: I. This invention utilizes PID control to better match the pressure changes within the compression balloon to the radial artery's pressure curve. This maintains the compression force of the balloon at the radial artery puncture site at a level slightly higher than the real-time radial artery pulse pressure. Based on clinical experience and expert consensus on puncture site compression hemostasis after radial artery interventional procedures, when the radial artery is under systolic pressure, the target pressure difference is typically set at 1.05-1.15 times the systolic pressure. This ensures hemostasis while maintaining a weak blood flow in the radial artery, preventing vascular occlusion. When the radial artery is under diastolic pressure, the pressure difference is set to approximately 80% of the systolic pressure. This provides breathing space for the vessel wall, preventing endothelial damage caused by prolonged mechanical compression.

[0015] II. This invention, by adding a pre-assisted airway and a solenoid valve, allows the pressure sensor to detect a sudden increase in blood pressure and transmit the result to the chip. The chip then controls the pneumatic mechanism to supply more gas and simultaneously opens the solenoid valve. At this point, the pre-assisted airway connects the pneumatic mechanism and the compression cuff. The addition of the pre-assisted airway diverts the high-pressure gas output from the pneumatic mechanism, allowing high-pressure gas to be quickly and safely supplied to the compression cuff. This enables the compression cuff to rapidly increase the pressure at the compression point, maintaining a level higher than the radial artery systolic pressure to prevent the aforementioned situation from occurring.

[0016] Third, this invention, by incorporating an auxiliary pressure airbag, a second pneumatic device, and an injection tube, ensures that the entire compression device remains more stable on the patient's hand during emergencies, preventing displacement. After the emergency ends, when the solenoid valve executes the "close" command, the second pneumatic device simultaneously withdraws the gas from the auxiliary pressure airbag, restoring the pressure to a normal level. This avoids the aforementioned problem of excessively high pressure applied to the patient's wrist, which could lead to poor blood supply. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of Embodiment 1 of the present invention; Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the change in pressure force over time in one embodiment of the present invention. Figure 4 This is a schematic diagram of Embodiment 2 of the present invention; Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 6 This is a structural schematic diagram of a cross-section of an embodiment of the present invention; In the diagram: 1. Compression airbag; 2. Pressure sensor; 3. Self-adhesive strap; 4. Pneumatic mechanism; 5. Air pressure sensor; 6. Precision airway; 7. Balance air port; 8. Control module; 9. Manual air injection port; 10. Preparatory auxiliary airway; 11. Auxiliary pressurization airbag; 12. Solenoid valve; 13. Second pneumatic device; 14. Air injection pipe; 15. Second manual air injection port; 16. Ventilation pipe; 17. Spare pulse pressure monitor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Implementation

[0019] Please see Figures 1 to 2 This invention provides a technical solution: a radial artery hemostasis compression device based on PID regulation, comprising a compression airbag 1, a wristband structure for securing the compression airbag 1 to the wrist, and a pressure sensor 2 attached to the radial artery; the compression airbag 1 is provided with a balancing air hole 7, and a precision airway 6 is connected through the balancing air hole 7; it also includes a pneumatic mechanism 4, which is connected to the compression airbag 1 through the precision airway 6 and the balancing air hole 7; a pressure sensor 5 for monitoring the pressure of the compression airbag 1 is also provided inside the compression airbag 1; and a control module 8 for controlling the operation of the pneumatic mechanism 4 is also included.

[0020] The compression airbag 1 is fixed to a wristband structure, allowing it to be worn on the patient's wrist, positioning it at the radial artery puncture site. Once worn, the control module 8 controls the pneumatic mechanism 4, which inflates the compression airbag 1 through a precision airway 6 and a balance air port 7. This inflates the airbag, applying pressure to the radial artery puncture site to achieve hemostasis. A pressure sensor 2, fitted to the radial artery, monitors the pressure. The pressure sensor 2 is connected to the control module 8, transmitting the pressure data in real-time. The pneumatic mechanism 4 can be a miniature diaphragm pump, a miniature piezoelectric pump, etc., all of which offer advantages such as small size, high pressure limit, mature technology, and easy procurement.

[0021] Pressure sensor 2 employs a piezoelectric sensor, which is attached to the radial artery in the patient's wrist via an elastic band or adhesive surface. This allows it to measure the systolic and diastolic pulse pressure, transmitting the pressure data to the control module. Based on research and experiments, an optimal pressure value was designed. The average of the radial artery systolic and diastolic pressures was chosen as the design pressure value for the pressure balloon 1 on the radial artery puncture site. This ensures a reasonable pressure on the radial artery, preventing bleeding at the puncture site while maintaining normal blood supply and avoiding closure of the puncture site.

[0022] The control module takes the average of the systolic and diastolic blood pressure and uses this average as a reference to adjust the pressure of the compression balloon 1 to a level equivalent to this average to compress the radial artery. Every 10-20 minutes, the compression force of the compression balloon 1 is adjusted using a PID controller based on the currently measured average pulse pressure.

[0023] Because different patients have different coagulation levels, the required compression time at the radial artery puncture site also varies. We designed different compression times based on patient conditions, and the optimal compression time formula is as follows:

[0024] Where Ty represents the optimal compression time, t represents the standard compression time (approximately 6 hours), and Kp is a coefficient designed based on the patient's pathological information and coagulation status. Kp is 1 for patients with normal coagulation, and 1.3 for patients with diabetes or other conditions that impair coagulation, meaning a longer compression time is required. Patients undergoing radial artery puncture typically undergo relevant blood tests. Coagulation levels can be referenced to the patient's platelet count. When the platelet count is higher than 100 × 10⁻⁶... 9 When the platelet count is / L, Kp is 1; when the platelet count is below 100×10⁹ / L, Kp is 1. 9 / L, and Kp is 1.3.

[0025] Furthermore, to align with the physiological recovery mechanism, the compression balloon 1 can be designed to apply a pressure slightly higher than the average pulse pressure to the radial artery puncture site during the first part of the compression period. During the second part of the compression period, the pressure of the compression balloon 1 is gradually reduced until it is equivalent to the average diastolic and systolic blood pressure of the radial artery. We will introduce the aforementioned optimal compression time Ty. During the first half of the Ty compression period, the pressure of the compression balloon 1 on the radial artery is gradually reduced until, during the latter half of the Ty compression period, a pressure equivalent to the average diastolic and systolic blood pressure is applied. Please refer to the attached diagram in the instruction manual. Figure 3 .

[0026] This embodiment also provides another better approach: the pressure sensor 2 adopts a flexible piezoelectric sensor, an array-type flexible pressure sensor, or a photoplethysmography (PPG) sensor. These sensors all have millisecond-level response capabilities and can measure the radial artery pulse pressure in real time and transmit it to the control module 8.

[0027] The pressure sensor 2 is attached to the radial artery with a certain pressure using an elastic band, medical self-adhesive, or other methods, and is located closer to the heart than the point of pressure.

[0028] As needed, we set the pressure of the compression balloon 1 on the puncture site to be higher than the pressure of the radial artery itself, but not to maintain a consistently high level. Furthermore, the diastolic and systolic blood pressures of the radial artery differ. While achieving hemostasis at the puncture site, to ensure better puncture site recovery and avoid other negative effects, we allowed the pressure of the compression balloon 1 to change in accordance with the pressure of the radial artery itself. This ensures that the pressure of the compression balloon 1 on the radial artery is always slightly higher than the real-time pulse pressure of the radial artery. This achieves the goal of preventing bleeding at the puncture site, maintaining normal blood supply to the radial artery, and avoiding closure of the radial artery puncture site.

[0029] The control module 8 controls the pneumatic mechanism 4 based on the radial artery pressure data monitored by the pressure sensor 2. The pneumatic mechanism 4 adjusts the pressure inside the compression bag 1 through the precision airway 6 and the balance air hole 7, and monitors the pressure inside the compression bag 1 in real time through the air pressure sensor 5. This allows the pressure of the compression bag 1 to be dynamically adjusted, keeping the pressure difference between the compression bag 1 and the radial artery puncture site within a certain range.

[0030] By employing PID control, the pressure changes within the compression balloon 1 are better matched to the pressure change curve of the radial artery. This ensures that the pressure difference between the compression balloon 1 and the radial artery puncture site is consistently maintained at the set value. Based on clinical experience and the consensus among clinical experts on puncture site compression hemostasis after radial artery interventional procedures, when the radial artery is under systolic pressure, the target pressure difference is typically set at 1.05-1.15 times the systolic pressure. This ensures hemostasis while maintaining a weak blood flow in the radial artery, preventing vascular occlusion. When the radial artery is under diastolic pressure, the pressure difference is set to approximately 80% of the systolic pressure. This provides breathing space for the vessel wall, preventing endothelial damage caused by prolonged mechanical compression.

[0031] By configuring the operational logic, this pressure difference can be maintained at 1.05-1.15 times the systolic blood pressure for the first 3.5-4 hours, and then gradually reduced to 1.05 times until slightly below the systolic blood pressure over the following 2 hours. Thrombus formation at the puncture site is a process of hardening from soft to firm. As the coagulation stabilizes, the vessel wall no longer requires extremely high external force to seal it. Gradual decompression can reduce the risk of radial artery occlusion.

[0032] The duration of pressure applied to the patient's hand by the compression device needs to be determined based on individual patient circumstances, primarily considering the patient's blood clotting status, such as whether the patient is taking anticoagulants or whether the patient has diabetes. Diabetic patients typically have platelet counts below 100 × 10⁻⁶. 9 / L. In this case, the application time of the compression device needs to be increased. If a patient with normal clotting conditions needs 6 hours of compression, a diabetic patient needs 1.3 times the application time of a patient with normal clotting conditions, please refer to the above information.

[0033] Furthermore, the control module 8 includes a chip, a human-machine interface, and a battery. The battery is signal-connected to the chip, the human-machine interface, the pressure sensor 2, the air pressure sensor 5, and the pneumatic mechanism 4. The chip used can be a microcontroller, etc. The control module 8 may include additional memory, or it can be a microcontroller or other chip with data storage function. The battery can be a disposable battery or a rechargeable lithium battery. The human-machine interface can be a touch screen, a button, or a remote control. The battery provides power to the aforementioned electrical equipment. The microcontroller or other chip used, in conjunction with the memory, reads and sends relevant data instructions to the actuator. Implementation

[0034] Normally, a patient's systolic and diastolic blood pressure fluctuate uniformly, and the technical solution described above can resolve the issue of improper pressure applied to the radial artery puncture site. However, there are sudden situations, such as sneezing or violent coughing, where sudden events can cause significant psychological or physiological stimulation to the patient, leading to substantial blood pressure fluctuations. This can result in systolic blood pressure far exceeding normal levels, often reaching 1.5 times the normal systolic pressure. For a normal individual with a baseline systolic blood pressure of 120 mmHg, a sneeze can cause blood pressure to spike to 160 mmHg to 200 mmHg or even higher. In rare cases, if the patient has hypertension or poor vascular compliance, the instantaneous peak pressure may even double, approaching twice the original blood pressure, although this usually lasts only 1-2 seconds. In such cases, the pressure applied to the radial artery puncture site must be increased; otherwise, the pressure within the radial artery will exceed the compressive force, causing blood to rupture through the compression point and spill into the subcutaneous tissue, forming a hematoma.

[0035] In the technical solution of Implementation Method 1, in order to ensure more precise changes in the pressure of the compression bag 1 on the radial artery in the PID regulation mode, the diameter of the precision airway 6 is relatively small. This allows the pressure range to be better controlled at a level slightly higher than the radial artery pressure. However, in the face of such sudden situations, relying solely on the precision airway 6 to transmit sudden high-pressure gas is insufficient and may damage equipment components or related interfaces.

[0036] Therefore, a preparatory auxiliary air passage 10 is further connected between the balancing air hole 7 and the pneumatic mechanism 4, and a solenoid valve 12 is also included, which is disposed between the pneumatic mechanism 4 and the preparatory auxiliary air passage 10.

[0037] When the above-mentioned situation or other circumstances causing a sudden increase in blood pressure occur, pressure sensor 2 detects the change in value and transmits it to the chip. The chip controls the pneumatic mechanism 4 to supply more gas and simultaneously controls the solenoid valve 12 to open. At this time, the pre-assisted airway 10 connects the pneumatic mechanism 4 and the compression airbag 1. With the addition of the pre-assisted airway 10, the high-pressure gas output from the pneumatic mechanism 4 is diverted, allowing the high-pressure gas to be quickly and safely replenished into the compression airbag 1. This enables the compression airbag 1 to quickly increase the pressure at the compression point, thereby maintaining a level higher than the radial artery systolic pressure to avoid the aforementioned situation.

[0038] Furthermore, the wristband structure is a self-adhesive strap 3, which allows for convenient and quick wearing and removal.

[0039] Furthermore, the length of the self-adhesive strap 3 is adjustable. Since different patients have different wrist sizes, the adjustable method can adapt to different patients and improve the adaptability of use. Implementation

[0040] Furthermore, the wristband structure includes two auxiliary pressurizing airbags 11 connected to both ends of the compression airbag 1, and the two auxiliary pressurizing airbags 11 are connected to each other through a venting tube 16; it also includes a self-adhesive strap 3, the two ends of which are respectively connected to the auxiliary pressurizing airbags 11, and the length of the self-adhesive strap 3 is adjustable. One of the auxiliary pressurizing airbags 11 is connected to an inflation tube 14, the other end of which is connected to a second pneumatic device 13. The second pneumatic device 13 is powered by a battery and is connected to a chip signal.

[0041] The device is worn on the wrist via an adjustable-length solenoid valve 12. Assisted pressure is provided by the two auxiliary pressure airbags 11 connected to either side of the pressure airbag 1, thus dispersing the pressure on the blood vessels in the wrist and making the patient more comfortable. The two auxiliary pressure airbags 11 are connected by a ventilation tube 16 to maintain the same pressure. The chip sends a command to the second pneumatic device 13, which injects gas into the auxiliary pressure airbags 11 through the air injection tube 14, causing the airbags 11 to inflate and exert pressure on the skin.

[0042] In the event of the emergency described in Embodiment 2, the patient typically exhibits unnatural limb movements, such as hand-shaking or tremors. These movements are often brief and relatively intense. Such movements pose a risk of displacement of the compression device. Furthermore, due to this risk, the compression device cannot be worn tightly on the patient's hand, as the pressure alone could easily cause serious damage to the compression points. Therefore, the tension during wear is moderate. To address this technical issue, the solenoid valve 12 and the second pneumatic device 13 are connected. When the solenoid valve 12 receives an "open" signal, the second pneumatic device 13 also opens, injecting a certain amount of gas into the auxiliary pressure bladders 11, causing the two auxiliary pressure bladders 11 to inflate. After the auxiliary pressure bladders 11 inflate, their overall outer diameter increases, thus, in conjunction with the self-adhesive strap 3, increasing the pressure applied to the patient's hand, resulting in a tighter fit and a sudden tightening effect. In this way, in such emergencies, the compression device is more stable on the patient's hand and less prone to displacement. After the situation ends, when the solenoid valve 12 executes the "close" command, the second pneumatic device 13 also simultaneously withdraws the gas compressed into the auxiliary pressurization bladder 11, thereby restoring the normal pressure level. This avoids the aforementioned situation where excessively high pressure is applied to the patient's wrist, causing poor blood supply.

[0043] On the other hand, the shared switching signal between the second pneumatic device 13 and the solenoid valve 12 also has the effect of maintaining the pressure at the compression point. This is because, in this situation, if there is accompanying hand or limb movement, the sudden pressurization of the compression airbag 1 might be dispersed by the movement of the limb, causing the pressure point to shift or the pressure increase to fail to achieve the desired effect. However, by cooperating with the second pneumatic device 13, which receives this signal and executes the action, the auxiliary pressure airbag 11 presses simultaneously with the compression airbag 1, achieving the effect of pressing down on the wrist over a larger area. This prevents the compression airbag 1 from shifting away from the pressure point. Simultaneously, because the auxiliary pressure airbag 11 increases the overall wearing pressure, it avoids the situation where only the compression airbag 1 is pressurized and its pressure is dispersed by movement, resulting in insufficient pressure at the compression point, making it more reliable to use.

[0044] Furthermore, one of the auxiliary pressure airbags 11 has a connecting ring at its end. One end of the auxiliary pressure airbag 11 can be bonded to the outer surface of the auxiliary pressure airbag 11 itself after passing around the connecting ring. One of the auxiliary pressure airbags 11 is provided with a second manual inflation port 15. In this way, the compression device can be quickly put on and can be quickly adjusted to suit different patients.

[0045] Furthermore, a backup pulse pressure monitor is included, which is signal-connected to the control module. This backup pulse pressure monitor can be an ultrasound and Korotkoff watchdog, which can be pressed onto the radial artery using an elastic band or medical patch to monitor the radial artery's pulsation. By designing this backup pulse pressure monitor, it can serve as a supplementary monitoring function when the pressure sensor cannot detect pulse pressure, enabling real-time detection of the radial artery waveform. If the waveform disappears, an alarm should be triggered, thus avoiding the problem of the radial artery being undetectable when it is compressed and blocked. Based on this, an alarm device or a backend IoT system can be integrated in subsequent designs to provide feedback to medical personnel when such a situation occurs.

[0046] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radial artery hemostasis compression device based on PID regulation, comprising a compression airbag (1) and a wristband structure for securing the compression airbag (1) to the wrist, characterized in that: It also includes a pressure sensor (2) attached to the radial artery; the compression airbag (1) is provided with a balance air hole (7), and a precision airway (6) is connected through the balance air hole (7); it also includes a pneumatic mechanism (4), which is connected to the compression airbag (1) through the precision airway (6) and the balance air hole (7); a pressure sensor (5) for monitoring the pressure of the compression airbag (1) is also provided inside the compression airbag (1); It also includes a control module (8) for controlling the operation of the pneumatic mechanism (4).

2. The radial artery hemostasis compression device based on PID regulation according to claim 1, characterized in that: The control module (8) includes a chip, a human-machine interface, and a battery. The battery is connected to the chip, the human-machine interface, the pressure sensor (2), the air pressure sensor (5), and the pneumatic mechanism (4).

3. The radial artery hemostasis compression device based on PID regulation according to claim 1 or 2, characterized in that: A preparatory auxiliary air passage (10) is also connected between the balancing air hole (7) and the pneumatic mechanism (4), and a solenoid valve (12) is also included. The solenoid valve (12) is located between the pneumatic mechanism (4) and the preparatory auxiliary air passage (10).

4. The radial artery hemostasis compression device based on PID regulation according to claim 3, characterized in that: The wristband structure is a self-adhesive strap (3).

5. The radial artery hemostasis compression device based on PID regulation according to claim 4, characterized in that: The length of the self-adhesive strap (3) is adjustable.

6. The radial artery hemostasis compression device based on PID regulation according to claim 3, characterized in that: The wristband structure includes two auxiliary pressurizing airbags (11) connected to both ends of the compression airbag (1), and the two auxiliary pressurizing airbags (11) are connected to each other through a ventilator (16); it also includes a self-adhesive strap (3), the two ends of which are respectively connected to the auxiliary pressurizing airbags (11), and the length of the self-adhesive strap (3) is adjustable.

7. The radial artery hemostasis compression device based on PID regulation according to claim 6, characterized in that: One of the auxiliary pressurized airbags (11) is connected to an air injection tube (14), and the other end of the air injection tube (14) is connected to a second pneumatic device (13). The second pneumatic device (13) is powered by a battery and is connected to a chip signal.

8. The radial artery hemostasis compression device based on PID regulation according to claim 6, characterized in that: One of the auxiliary pressurization airbags (11) is provided with a connecting ring at its end. One end of the auxiliary pressurization airbag (11) can be bonded to the outer surface of the auxiliary pressurization airbag (11) itself after passing around the connecting ring. One of the auxiliary pressurization airbags (11) is provided with a second manual air injection port (15).

9. The radial artery hemostasis compression device based on PID regulation according to claim 1, characterized in that: It also includes a backup pulse pressure monitor (17), which is signal-connected to the control module (8).

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