A pressure release detection system and method for an automatic pressure release tourniquet

Abstract

This application relates to an automatic pressure-releasing hemostat release detection system and method. It automatically detects the release process of the automatic pressure-releasing hemostat by dynamically detecting the internal pressure of the compression airbag and safety airbag using a pressure sensor and timer. It can accurately measure the release capacity of the internal pressure of the compression airbag over time. By determining the internal pressure of the compression airbag through the control unit and controlling the pressure compensation device, it can determine whether the release range of the automatic pressure-releasing hemostat is qualified. If the pressure is slightly below the lower limit of release, the compression airbag can be pressurized to compensate. If the complete test time is qualified, the system is considered qualified. This effectively reduces misjudgments of the quality of the automatic pressure-releasing hemostat and avoids wasting potentially qualified products.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to an automatic pressure relief hemostat pressure release detection system and detection method. Background Technology

[0002] After radial artery puncture interventional surgery, hemostasis is generally achieved by mechanical compression with stable pressure. In the current technology, the balloon compression hemostat is pressurized by a syringe, and the pressure is released by medical staff by drawing out a certain volume of gas through the syringe according to the compression time.

[0003] 0-threaded rod compression hemostat requires medical personnel to rotate the threaded rod to apply pressure and periodically adjust the pressure according to the pressure.

[0004] The pressure is adjusted and released by rotating the threaded rod over time. Both types of hemostatic devices require 3-4 repeated pressure release operations during the compression process.

[0005] Automatic pressure-releasing hemostatic devices can slowly release gas from the pressure bladder over time to achieve the desired effect.

[0006] The automatic pressure relief function reduces the number of steps required by medical staff and avoids ineffective hemostasis caused by inaccurate pressure relief.

[0007] Automatic pressure-relieving hemostatic devices typically control the relationship between pressure relief time and pressure release volume through the orifice size of the pressure relief valve. Too rapid pressure relief can easily lead to incomplete hemostasis, while too slow pressure relief prolongs the compression time, causing nerve compression and patient discomfort. Therefore, the pressure relief time and pressure release volume are key performance characteristics of automatic pressure-relieving hemostatic devices.

[0008] The current method for testing the decompression time and decompression volume involves using a pressure gauge to measure the pressure of a fixed-volume airbag and recording the pressure data at regular intervals. This increases the workload of the testing personnel, and the pressure gauge has an excessively large measurement error range.

[0009] For a small number of products that are below the lower limit of the pressure relief range, the result of the pressure relief valve's pressure relief cannot be determined, and they are directly judged as unqualified products, resulting in some waste. Summary of the Invention

[0010] The purpose of this application is to provide an automatic pressure relief hemostat release detection system and method, which can accurately measure the pressure relief capacity of the internal pressure of the compression bladder over time, thereby reducing misjudgments of the quality of automatic pressure relief hemostat products.

[0011] To achieve the above objectives, in a first aspect, the present invention provides an automatic pressure-releasing hemostat release detection system, comprising an automatic pressure-releasing hemostat, the automatic pressure-releasing hemostat including a compression airbag, a safety airbag, a breathing valve, and a pressurizing device, the compression airbag being used to compress and stop bleeding wounds and to release pressure to the safety airbag through the breathing valve, the pressurizing device being connected to the compression airbag through a pressurizing tube and being used to pressurize the compression airbag;

[0012] The system includes a control unit, a pressure sensor, a timer, and a pressure compensation device. The pressure sensor is electrically connected to the control unit and is used to detect the internal pressure of the compression airbag and the safety airbag, and to send a pressure signal to the control unit.

[0013] The control unit is used to determine whether the internal pressure of the compression airbag meets the pressure relief requirements by receiving the internal pressure signals of the compression airbag and the safety airbag.

[0014] The timer is electrically connected to the control unit and is used to feed back the pressure detection time point to the control unit;

[0015] The pressure compensation device is electrically connected to the control unit and is used to compensate for the pressure in the airbag.

[0016] In an optional embodiment, the pressurization device includes a syringe, the pressure replenishment device includes an air pump, the pressurization tube is connected to a T-connector, and an inflation / deflation tube is connected between the pressure bladder and the T-connector. The pressurization tube and the inflation / deflation tube are respectively located on both sides of the T-connector, and the syringe and the air pump share the pressurization tube to pressurize the pressure bladder.

[0017] In an optional embodiment, the pressure sensor includes components disposed at the tee joint and the...

[0018] The pressure airbag sensor between the breathing valve and the airbag 5;

[0019] The compression airbag sensor is used to detect the internal pressure of the compression airbag, and the safety airbag sensor is used to detect the internal pressure of the safety airbag.

[0020] In an optional embodiment, the air pump is electrically connected to the control unit, and the control unit controls the operation of the air pump based on the received internal pressure of the compression airbag.

[0021] In an optional embodiment, the control unit includes a controller body and a microcontroller. The controller body is equipped with a display screen, and the air pressure sensor, the air pump, the timer, and the display screen are all electrically connected to the microcontroller.

[0022] In a second aspect, the present invention provides an automatic pressure relief hemostat pressure relief detection method, which is carried out according to the automatic pressure relief hemostat pressure relief detection system according to any one of the foregoing embodiments, including the following steps: 5. Install a pressure sensor, pressurize the compression airbag through a pressurizing device, then connect a pressure replenishing device to the pressurizing tube, and connect the pressure sensor, timer and pressure replenishing device to the control unit.

[0023] Feedback from a timer to the control unit causes the air pressure sensor to periodically detect the pressure inside the airbag and safety airbag.

[0024] The control unit has a preset standard range for the pressure release time and the pressure inside the airbag. The standard range 0 includes the upper limit and the lower limit of the pressure.

[0025] When the pressure inside the compression bladder is higher than the lower pressure limit, the automatic pressure relief hemostat is deemed to be qualified and the pressure relief is normal.

[0026] When the pressure inside the compression bladder is lower than the lower pressure limit and exceeds the set range, the automatic pressure relief hemostat is deemed unqualified and the pressure relief is abnormal.

[0027] When the internal pressure of the compression airbag falls below the lower limit but is still below the set range, the control unit is triggered.

[0028] The control unit controls the pressure compensation device to pressurize and compensate the airbag, raising the internal pressure of the airbag to the midpoint between the upper and lower pressure limits, and then continues the test.

[0029] The internal pressure of the compression airbag and the safety airbag is checked at intervals according to the above steps, and the pressure compensation device is controlled by the control unit to pressurize and compensate the compression airbag until the internal pressure of the compression airbag and the safety airbag reach equilibrium, and the test ends.

[0030] In an optional implementation, the interval detection time that the timer feeds back to the control unit is 5 min, 10 min, 30 min, or 1 h.

[0031] In an optional implementation, the preset upper and lower pressure limits in the control unit constitute an upper limit standard curve and a lower limit standard curve.

[0032] In an optional implementation, the set range for the determination process includes the area within the compressed airbag.

[0033] The difference between the pressure at the test point and the lower pressure limit at the corresponding test time point must be checked to see if it exceeds 5%-10% of the lower pressure limit. 5. In an optional implementation, during the test, the pressure compensation device must not pressurize the compression bladder more than three times; otherwise, the automatic pressure relief hemostat is deemed to be abnormal.

[0034] The automatic pressure-releasing hemostatic device pressure release detection system and method of this invention can detect the pressure form of the compression airbag and the internal pressure of the safety airbag at dynamic intervals using a pressure sensor and a timer.

[0035] Automatic detection of the decompression process of the automatic decompression hemostat allows for accurate measurement of the decompression capacity of the compression bladder as the internal pressure changes over time.

[0036] By determining the internal pressure of the compression bladder through the control unit and controlling the pressure replenishment device, it is possible to determine whether the pressure relief range of the automatic pressure relief hemostat is qualified. If the pressure is slightly lower than the lower limit of pressure relief, the compression bladder can be pressurized to compensate. If the complete test time is qualified, it is displayed as qualified. This effectively reduces misjudgment of the quality of the automatic pressure relief hemostat and avoids the waste of potentially qualified products.

[0037] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the automatic pressure relief hemostat in this application;

[0040] Figure 2 This is a diagram showing the connection between the automatic pressure relief hemostat detection system and the hemostat in this application;

[0041] Figure 3 This is a schematic diagram of the module structure of the automatic pressure relief hemostat pressure relief detection system in this application;

[0042] Figure 4 This is a graph showing the relationship between the decompression time and the internal pressure of the compression airbag in this application.

[0043] icon:

[0044] 1-Compression airbag; 2-Safety airbag; 3-Breathing valve; 4-Instrument; 5-Pressure inflation / deflation tube; 6-Pressure inflation tube; 7-T-connector; 8-Timer; 9-Controller body; 10-Display screen; 11-Switch button; 12-Air pump; 13-Compression airbag sensor; 14-Safety airbag sensor. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] The automatic pressure relief hemostat release detection system in this application mainly detects the automatic pressure relief process of the automatic pressure relief hemostat and determines whether the product quality of the pressure relief hemostat is qualified based on the detection results of the pressure relief process.

[0049] By modifying existing pressure gauges to perform mechanical pressure tests on fixed-volume airbags, and using timers and pressure sensors to dynamically detect the pressure inside the compression airbag and safety airbag at intervals, automatic detection of the pressure inside the airbag, especially the compression airbag, is achieved. This reduces the workload of testing personnel and lowers the measurement error of mechanical pressure gauges.

[0050] The dynamic interval detection method can be organically matched with the angle of continuous pressure release of the pressure relief hemostat, which is more in line with the pressure release process of the automatic pressure relief hemostat. The detection system, which consists of a control unit, a pressure sensor, a timer, and a pressure replenishment device, can be separated from the structure of the hemostat itself, so as to realize the recycling of the detection system, to detect the pressure release process of different automatic pressure relief hemostats, and to ensure the product quality of each hemostat.

[0051] By electrically connecting the pressure compensation device to the control unit, and having the control unit control the pressure compensation device to inflate the pressure bladder, it is possible to continue testing a small number of hemostats that are below the lower limit of the pressure relief range in the form of pressure compensation. This avoids directly discarding hemostats that are not within the pressure relief range by preserving the opportunity for continued testing, thereby reducing misjudgment of the quality of hemostat products and reducing the waste of potentially qualified automatic pressure relief hemostat products.

[0052] See Figure 1 and combined Figures 2-4 The automatic pressure relief hemostat detection system of this application includes an automatic pressure relief hemostat, which includes a compression airbag 1, a safety airbag 2, a breathing valve 3, and a pressurizing device. The compression airbag 1 is used to compress the wound for hemostasis and release pressure to the safety airbag 2 through the breathing valve 3. The pressurizing device is connected to the compression airbag 1 through a pressurizing tube 6 and is used to pressurize the compression airbag 1.

[0053] The detection system mainly detects the pressure release after the pressure device initially inflates the airbag 1. The pressure device inflates the airbag 1 to its initial state through the pressure tube 6. After the inflation is completed, the pressure device is disconnected from the pressure tube 6, and the pressure tube 6 is connected to the pressure compensation device to perform pressure compensation during the detection process.

[0054] During the process of applying pressure to the wound to stop bleeding, the compression airbag 1 releases pressure to the safety airbag 2 through the breathing valve 3. The internal pressure of the compression airbag 1 decreases over time, while the internal pressure of the safety airbag 2 increases over time, until the compression airbag 1 and the safety airbag 2 reach pressure equilibrium, thus completing the compression of the wound to stop bleeding.

[0055] Specifically, the control unit, air pressure sensor, timer 8, and pressure replenishment device detect the automatic pressure relief hemostat during the pressure relief process. The air pressure sensor is electrically connected to the control unit and is used to detect the internal pressure of the compression airbag 1 and the safety airbag 2, respectively, and send the detected pressure signal to the control unit.

[0056] The control unit determines whether the internal pressure of the compression airbag 1 meets the pressure relief requirements based on the received internal pressure signals of the compression airbag 1 and the safety airbag 2, combined with the dynamic pressure relief range preset by the control unit, thereby determining whether the product quality of the automatic pressure relief hemostat is qualified.

[0057] Based on the above dynamic interval detection process, the timer 8 is electrically connected to the control unit and is used to feed back to the control unit the time point at which the air pressure sensor detects the internal pressure of the compression airbag 1 and the safety airbag 2.

[0058] During the testing process, the pressure compensation device, which is electrically connected to the control unit, is used to pressurize the compression airbag 1 of a small number of hemostatic devices that are below the pressure relief range, and dynamic interval testing is continued. This can reduce the direct rejection of potentially qualified products by increasing the testing opportunities and effectively avoid misjudging qualified products.

[0059] In one specific embodiment, the pressurization device includes a graduated syringe 4. Preferably, the syringe 4 includes a syringe 4 with a scale corresponding to the volume of gas to be filled, which can determine the volume of gas to be filled into the compression bladder 1 based on the number of times the syringe 4 is pushed.

[0060] The pressurization device includes an air pump 12, which is electrically connected to the control unit. The control unit can control the operation of the air pump 12 according to the internal pressure of the airbag 1, thereby realizing the automatic pressurization process.

[0061] In this embodiment, the inflation tube 6 is connected to a T-connector 7, and the airbag 1 is connected to the T-connector 7 via an inflation / deflation tube 5. The inflation / deflation tube 5 is mainly used for the syringe 4 and the air pump 12 to inflate the airbag 1, and for the airbag 1 to deflate the safety airbag 2. The inflation tube 6 and the inflation / deflation tube 5 are respectively located on both sides of the T-connector 7, and the syringe 4 and the air pump 12 share the inflation tube 6 to inflate the airbag 1.

[0062] During the testing process, the air pump 12 is connected to the inlet of the pressurization pipe 6. Based on the air pump 12 blocking the pressurization pipe 6, the pressure relief of the airbag 1 can only be released to the safety airbag 2 through the pressurization and depressurization pipe 5, preventing leakage from the pressurization pipe 6 and ensuring the testing effect of the product.

[0063] In this embodiment, the air pressure sensor is mainly used to detect the internal pressure of the compression airbag 1 and the safety airbag 2, and transmit the internal pressure data to the control unit. Specifically, the air pressure sensor includes a compression airbag sensor 13 disposed between the three-way connector and the breathing valve, and a safety airbag sensor 14 disposed between the breathing valve and the safety airbag. The compression airbag sensor 13 is used to detect the internal pressure of the compression airbag, and the safety airbag sensor 14 is used to detect the internal pressure of the safety airbag.

[0064] To facilitate the connection of the air pressure sensor to different hemostatic devices, the airbag sensor 14 and the compression airbag sensor 13 are detachably connected between the three-way connector, the breathing valve and the airbag, respectively.

[0065] Specifically, the detection position of the compression airbag sensor 13 is set in front of the breathing valve and communicates with the inner cavity of the compression airbag, and the detection position of the safety airbag sensor 14 is set in the back of the breathing valve and communicates with the inner cavity of the safety airbag, so as to accurately reflect the pressure of the compression airbag and the internal pressure of the safety airbag.

[0066] The air pump 12 is electrically connected to the control unit. The control unit controls the operation of the air pump 12 according to the internal pressure of the pressure bladder 1 received. When the detected internal pressure is lower than the lower limit of the pressure relief range, but the pressure difference between the pressure bladder 1 and the lower limit of the pressure relief range is lower than the preset set range, the control unit controls the air pump 12 to operate in order to compensate for the pressure of the pressure bladder 1 of the hemostat.

[0067] The control unit in this embodiment includes a controller body 9 and a microcontroller. The controller body 9 is equipped with a display screen 10. The air pressure sensor, air pump 12, timer 8 and display screen 10 are all electrically connected to the microcontroller.

[0068] The controller body 9 is equipped with a switch button 11 and a display screen 10 that can display the detection start time, test phase time, internal pressure of airbag 1, internal pressure of airbag 2, and the expected balance time between airbag 1 and airbag 2. It can also display the relationship curve between the decompression time and the internal pressure of airbag 1. This setting method makes it easy to display the detection parameters on the display screen 10, and more intuitively reflects the real-time status of the detection process.

[0069] The present invention also provides a method for detecting the pressure release of an automatic pressure-releasing hemostat, based on the above-described automatic pressure-releasing hemostat detection system, comprising the following steps:

[0070] Screw the airbag sensor 14 and the compression airbag sensor 13 between the airbag, the breathing valve and the three-way connector. Inflate the compression airbag with a syringe, then disconnect the syringe 4 from the inflation tube 6. Connect the air pump 12 to the three-way connector 7 of the breathing valve 3 through the inflation tube 6. At the same time, connect the airbag sensor 14, the compression airbag sensor 13, the timer 8 and the air pump 12 to the control unit.

[0071] Press the switch button 11 on the main body 9 of the controller to turn on the automatic pressure relief hemostat pressure relief detection system and display the test start time. The timer 8 sends feedback to the control unit, causing the airbag sensor 14 and the compression airbag sensor 13 to periodically detect the internal pressure of the compression airbag 1 and the airbag 2, and transmit the internal pressure signal to the control unit.

[0072] The detection interval can be set to 5 min, 10 min, 30 min or 1 h. That is, according to the set interval detection time, timer 8 starts counting. When the test interval is set to 1 h, the pressure inside the airbag is detected and displayed every 1 h.

[0073] The control unit has a preset standard range for the pressure release time and the internal pressure of the compression airbag 1. The standard range includes an upper pressure limit and a lower pressure limit. Specifically, the preset upper pressure limit and lower pressure limit in the control unit constitute an upper limit standard curve and a lower limit standard curve. During the detection process, the microcontroller displays the internal pressure point values ​​of the compression airbag 1, the upper limit standard curve, and the lower limit standard curve detected at intervals on the display screen 10. The upper limit standard curve and the lower limit standard curve are each composed of multiple corresponding upper limit pressure point values ​​and lower limit pressure point values.

[0074] By displaying the internal pressure point value of the compression airbag 1 obtained from the above-mentioned interval detection on the display screen 10, along with the preset upper and lower pressure limits, the pressure release process of the automatic pressure release hemostat can be monitored intuitively, thereby improving detection efficiency.

[0075] As the test proceeds, when the internal pressure of the compression airbag 1 is higher than the lower pressure limit, the automatic pressure relief hemostat is deemed qualified and the pressure relief is normal.

[0076] When the internal pressure of the compression airbag 1 is lower than the lower pressure limit and exceeds the set range, the automatic pressure relief hemostat is deemed unqualified and the pressure relief is abnormal.

[0077] When the internal pressure of the compression airbag 1 is lower than the lower pressure limit but lower than the set range, the control unit is triggered. The control unit controls the pressure compensation device to pressurize the compression airbag 1 to compensate, so that the internal pressure of the compression airbag 1 is raised to the midpoint between the upper pressure limit and the lower pressure limit, and the test continues.

[0078] The internal pressure of the compression airbag 1 and the safety airbag 2 are checked at intervals according to the above steps. The pressure compensation device is controlled by the control unit to pressurize the compression airbag 1 in sequence until the internal pressure of the compression airbag 1 and the internal pressure of the safety airbag 2 reach equilibrium, and the test ends.

[0079] During the determination process, when the internal pressure of the compression airbag 1 is lower than the lower pressure limit, the setting range can be selected as 5%-10%, preferably 10%, and can be specifically set according to the characteristics of the specific product and the range of compression pressure.

[0080] Specifically, the judgment range includes whether the difference between the internal pressure of the compression airbag 1 and the lower pressure limit corresponding to the test time point exceeds 10% of the lower pressure limit. In a specific example, the lower pressure limit corresponding to a certain time point after the start of decompression is 50 kPa. If the internal pressure of the compression airbag 1 detected at that time point is lower than 45 kPa, and the difference between the two is greater than 10% of the lower pressure limit, then the automatic decompression hemostat is judged to be unqualified and the decompression is abnormal.

[0081] If the internal pressure of the compression airbag 1 detected at this time point is higher than 45 kPa, although it is lower than the lower pressure limit of 50 kPa, the difference between the two is less than 10% of the lower pressure limit, providing an opportunity to continue testing. The control unit is triggered, and the control unit controls the air pump 12 to pressurize and compensate the compression airbag 1, so that the internal pressure of the compression airbag 1 is increased to the midpoint between the upper and lower pressure limits corresponding to this testing time point, and the test continues.

[0082] See Figure 4 The graph shows the relationship between the pressure release time and the internal pressure of the airbag 1. The horizontal axis represents the pressure release time, and the vertical axis represents the internal pressure of the airbag 1. The upper and lower dashed lines represent the upper and lower limit standard curves for the internal pressure of the airbag 1, respectively. The middle dashed line represents the median value between the upper and lower pressure limits. Other curves represent the internal pressure values ​​of the airbag 1 obtained simultaneously from different products. The standard requirements for the relationship between the pressure release time and the internal pressure of the airbag 1 are input into the control unit. The control unit compares the internal pressure of the airbag 1 sent by the airbag sensor 13 with the time of the timer 8, and outputs the judgment result based on the relationship graph requirements.

[0083] Abnormal leakage of the compression airbag 1 is likely to occur in the initial stage when the pressure is relatively high. This detection method can minimize the direct rejection of potentially qualified products and intercept and retain a small number of qualified products that meet the quality standards but are judged to have abnormal leakage due to measurement errors, thus effectively reducing losses caused by misjudgment.

[0084] It should be noted that during the testing process, in order to ensure product quality, pressure compensation cannot be performed without limit. The pressure compensation device can only compensate the pressure in the compression bladder 1 more than three times; otherwise, the automatic pressure relief hemostat will be judged to be abnormal.

[0085] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic pressure-relieving hemostatic device pressure relief detection system, characterized in that, The device includes an automatic pressure relief hemostat, which comprises a compression airbag, a safety airbag, a breathing valve, and a pressurizing device. The compression airbag is used to compress and stop the bleeding wound and release pressure to the safety airbag through the breathing valve. The pressurizing device is connected to the compression airbag through a pressurizing tube and is used to pressurize the compression airbag. The system includes a control unit, a pressure sensor, a timer, and a pressure compensation device. The pressure sensor is electrically connected to the control unit and is used to detect the internal pressure of the compression airbag and the safety airbag, and to send a pressure signal to the control unit. The air pressure sensor includes a pressure airbag sensor disposed between the three-way connector and the breathing valve, and a safety airbag sensor disposed between the breathing valve and the safety airbag; The control unit is used to determine whether the internal pressure of the compression airbag meets the pressure relief requirements by receiving the internal pressure signals of the compression airbag and the safety airbag. The timer is electrically connected to the control unit and is used to feed back the pressure detection time point to the control unit; The pressure compensation device is electrically connected to the control unit and is used to inflate and compensate the pressure airbag; When the pressure inside the airbag is lower than the lower pressure limit but lower than the set range, the control unit is triggered. The control unit controls the pressure compensation device to pressurize the airbag to compensate, so that the pressure inside the airbag is raised to the midpoint between the upper pressure limit and the lower pressure limit, and the test continues. The pressurization device includes a syringe, the pressure replenishment device includes an air pump, the pressurization tube is connected to a three-way connector, the pressure bladder is connected to the three-way connector and a pressure relief tube is connected, the pressurization tube and the pressure relief tube are respectively located on both sides of the three-way connector, and the syringe and the air pump share the pressurization tube to pressurize the pressure bladder.

2. The automatic pressure relief hemostat pressure relief detection system according to claim 1, characterized in that, The compression airbag sensor is used to detect the internal pressure of the compression airbag, and the safety airbag sensor is used to detect the internal pressure of the safety airbag.

3. The automatic pressure relief hemostat pressure relief detection system according to claim 1, characterized in that, The air pump is electrically connected to the control unit, and the control unit controls the operation of the air pump according to the internal pressure of the compressed airbag received.

4. The automatic pressure relief hemostat pressure relief detection system according to claim 1, characterized in that, The control unit includes a controller body and a microcontroller. The controller body is equipped with a display screen. The air pressure sensor, the air pump, the timer, and the display screen are all electrically connected to the microcontroller.

5. A method for detecting the pressure release of an automatic pressure-releasing hemostat, performed according to any one of claims 1-4, characterized in that, Includes the following steps: Install a pressure sensor, inflate the airbag using an inflation device, connect a pressure replenishment device to the inflation tube, and connect the pressure sensor, timer, and pressure replenishment device to the control unit. Feedback from a timer to the control unit causes the air pressure sensor to periodically detect the pressure inside the airbag and safety airbag. The control unit has preset standard ranges for pressure release time and pressure inside the airbag, including upper and lower pressure limits. When the pressure inside the compression bladder is higher than the lower pressure limit, the automatic pressure relief hemostat is deemed to be qualified and the pressure relief is normal. When the pressure inside the compression bladder is lower than the lower pressure limit and exceeds the set range, the automatic pressure relief hemostat is deemed unqualified and the pressure relief is abnormal. When the pressure inside the airbag is lower than the lower pressure limit but lower than the set range, the control unit is triggered. The control unit controls the pressure compensation device to pressurize the airbag to compensate, so that the pressure inside the airbag is raised to the midpoint between the upper pressure limit and the lower pressure limit, and the test continues. The internal pressure of the compression airbag and the safety airbag is checked at intervals according to the above steps, and the pressure compensation device is controlled by the control unit to pressurize and compensate the compression airbag until the internal pressure of the compression airbag and the safety airbag reach equilibrium, and the test ends.

6. The method for detecting the pressure release of an automatic pressure-releasing hemostatic device according to claim 5, characterized in that, The timer feeds back the interval detection time to the control unit, which is 5 min, 10 min, 30 min, or 1 h.

7. The method for detecting the pressure release of an automatic pressure-releasing hemostatic device according to claim 5, characterized in that, The upper and lower pressure limits preset in the control unit constitute the upper limit standard curve and the lower limit standard curve.

8. The method for detecting the pressure release of an automatic pressure-releasing hemostatic device according to claim 5, characterized in that, During the judgment process, the judgment range includes whether the difference between the pressure inside the airbag and the lower limit of pressure at the test time point exceeds 5%-10% of the lower limit of pressure.

9. The method for detecting the pressure release of an automatic pressure-releasing hemostatic device according to claim 5, characterized in that, During the test, the pressure compensation device must not pressurize the compression bladder more than three times; otherwise, the automatic pressure relief hemostat will be deemed to be abnormal.

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