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CN-121987276-A - Radial artery compression control method and device based on intelligent loosening compressor

CN121987276ACN 121987276 ACN121987276 ACN 121987276ACN-121987276-A

Abstract

The radial artery compression control method based on the intelligent loosening compressor provided by the invention adopts an incremental PID algorithm to combine with a high-precision sensor, the pressure adjustment error is less than or equal to +/-3 mmHg, the pressure adjustment error is superior to that of a traditional mechanical compression device (error +/-15-20 mmHg), the skin injury risk caused by excessive compression is reduced, a bleeding, shifting and fault triple monitoring mechanism is integrated, the response time is less than or equal to 100ms, the safety is obviously improved compared with manual observation, the 15% stepped pressure reduction proportion is preset, the physiological process of vascular healing (the thrombus strength is gradually increased after operation for 1-6 hours), the hemostatic failure rate is reduced compared with the loosening at a fixed time (for example, the bleeding is 1 time after operation), the Bluetooth transmission is in butt joint with a HIS system of a hospital, and the pressure curve (sampling interval is 1 second), the alarm record and the complete storage of an operation log are realized.

Inventors

  • FAN JIANLI

Assignees

  • 浙江大学医学院附属邵逸夫医院

Dates

Publication Date
20260508
Application Date
20260122

Claims (10)

  1. 1. Radial artery compression control method based on intelligent loosening compressor, characterized in that the intelligent loosening compressor comprises: the compression body is a flexible air bag attached to the shape of the radial artery, and a film pressure sensor is integrated in the air bag; the actuating mechanism comprises a miniature air pump and an electromagnetic proportional valve, the miniature air pump is used for inflating the air bag, and the electromagnetic proportional valve is used for controlling the air bag to deflate; The control module comprises a microcontroller and a storage unit, wherein the storage unit stores parameters such as a target pressure range, a loosening time interval, a pressure drop proportion and the like; The interaction module comprises a display screen, keys and an alarm module; The power supply is used for supplying power; The method comprises the following steps: s1, inputting a target pressure range, a loosening time interval, a pressure drop proportion and an alarm threshold value through the interaction module, and storing the parameters into the storage unit; s2, the film pressure sensor acquires pressure data of radial artery compression points in real time and transmits the pressure data to the microcontroller; s3, comparing the real-time pressure data with the target pressure range by the microcontroller, and driving the executing mechanism to adjust the air bag pressure by adopting a PID control algorithm so as to maintain the real-time pressure within the target pressure range; s4, the microcontroller gradually reduces the target pressure range according to the loosening time interval and the pressure reduction proportion to realize gradient loosening; s5, when the target pressure range is reduced below a safety threshold, the microcontroller controls the electromagnetic proportional valve to completely deflate and stop pressing; and S6, when the real-time pressure deviates from the target pressure range and exceeds the alarm threshold, the alarm module triggers an alarm.
  2. 2. A radial artery compression control method based on an intelligent loosening compressor as claimed in claim 1, wherein the bladder-skin contact side of the compression body is provided with anti-slip texture.
  3. 3. The radial artery compression control method based on the intelligent loosening compressor of claim 1, wherein the accuracy of the film pressure sensor is +/-1%, and the measuring range is 0-500mmHg.
  4. 4. The radial artery compression control method based on the intelligent loosening compressor of claim 1, wherein the micro air pump flow of the actuating mechanism is 1.0-1.5L/min, and the response time of the electromagnetic proportional valve is less than or equal to 10ms.
  5. 5. The radial artery compression control method based on the intelligent loosening compressor of claim 1, wherein the microcontroller of the control module is an STM32 series single-chip microcomputer, and the storage unit is an EEPROM.
  6. 6. A radial artery compression control method based on an intelligent loosening compressor as claimed in claim 1, wherein the PID control algorithm has a proportionality coefficient kp=0.3-0.7, an integral coefficient ki=0.05-0.15, and a differential coefficient kd=0.01-0.05.
  7. 7. A radial artery compression control method based on an intelligent loosening compressor as claimed in claim 1, wherein the gradient loosening includes an initial compression phase, a gradual loosening phase, and a stop compression phase: An initial compression stage, namely maintaining the upper limit of the target pressure for 1-2 hours; Step-by-step loosening, namely reducing the target pressure by 10% -20% every 30-60 minutes; And stopping compression when the target pressure is reduced to below 50 mmHg.
  8. 8. A radial artery compression control method based on an intelligent relief compressor as claimed in claim 1, further comprising an adaptive protection step of: When the real-time pressure suddenly drops to be more than 30mmHg/10 seconds, the microcontroller starts an emergency pressurization mode, drives the micro air pump to rapidly inflate to the upper limit of target pressure, and triggers an alarm; when the real-time pressure fluctuation exceeds +/-30 mmHg/5 seconds, the microcontroller triggers a shift alarm and sends a prompt to the mobile terminal through the Bluetooth module.
  9. 9. The radial artery compression control method based on the intelligent loosening compressor of claim 1, wherein the display screen of the interaction module displays a real-time pressure value, a target pressure range and a residual loosening time in real time, the keys are used for setting parameters, and the alarm module comprises a buzzer and a two-color LED lamp.
  10. 10. The radial artery compression control method based on the intelligent loosening compressor of claim 1, wherein the intelligent loosening compressor further comprises a bluetooth module, and the bluetooth module is used for transmitting real-time pressure data, loosening progress and alarm information to a mobile terminal or a hospital information system to realize remote monitoring.

Description

Radial artery compression control method and device based on intelligent loosening compressor Technical Field The invention relates to the technical field of medical equipment, in particular to a radial artery compression control method and device based on an intelligent loosening compressor, electronic equipment and a computer readable storage medium. Background The existing compression method cannot control pressure as accurately as an intelligent loosening compressor. The intelligent compressor collects pressure data of radial artery compression points in real time through the film pressure sensor, and adjusts air bag pressure by utilizing the microcontroller and the PID control algorithm, so that the real-time pressure is maintained within a target pressure range. However, the traditional method does not have an accurate pressure monitoring and feedback regulating mechanism, and it is difficult to ensure that the compression pressure is always at a proper level. If the pressure is too high, the blood circulation of radial artery and surrounding tissues is affected, which leads to complications such as ischemia and nerve injury, and if the pressure is too low, bleeding cannot be effectively stopped, and the bleeding risk is increased. The existing compression mode is mostly fixed pressure compression, but the compression pressure cannot be dynamically adjusted according to the actual condition and the recovery process of a patient. In the early stage of hemostasis, the pressure is fixed, so that the higher pressure is maintained after the bleeding condition is improved, the recovery of a patient is not facilitated, and the pressure is required to be properly reduced in the later stage to promote blood circulation, but the pressure cannot be adjusted in time. The existing compression mode has no remote monitoring function, medical staff can only judge the compression effect on site by observing the condition of a patient, cannot acquire pressure data and loosening progress in real time, cannot find potential problems in time and process the potential problems, and increases the risk of the patient. Without a similar alarm mechanism, when the compression pressure is abnormal, the medical staff is difficult to find in time, and bad results are caused. The medical staff is required to manually judge whether the compression can be stopped, if the judgment is inaccurate, the compression is stopped too early or too late, and the recovery and treatment effect of the patient are affected. Disclosure of Invention In order to solve the technical problems in the prior art, the invention provides the following technical scheme: in one aspect, a radial artery compression control method based on an intelligent loosening compressor is provided, the intelligent loosening compressor comprising: the compression body is a flexible air bag attached to the shape of the radial artery, and a film pressure sensor is integrated in the air bag; the actuating mechanism comprises a miniature air pump and an electromagnetic proportional valve, the miniature air pump is used for inflating the air bag, and the electromagnetic proportional valve is used for controlling the air bag to deflate; The control module comprises a microcontroller and a storage unit, wherein the storage unit stores parameters such as a target pressure range, a loosening time interval, a pressure drop proportion and the like; The interaction module comprises a display screen, keys and an alarm module; The power supply is used for supplying power; The Bluetooth module is used for transmitting the real-time pressure data, the loosening progress and the alarm information to the mobile terminal or the hospital information system to realize remote monitoring; The method comprises the following steps: s1, inputting a target pressure range, a loosening time interval, a pressure drop proportion and an alarm threshold value through the interaction module, and storing the parameters into the storage unit; s2, the film pressure sensor acquires pressure data of radial artery compression points in real time and transmits the pressure data to the microcontroller; s3, comparing the real-time pressure data with the target pressure range by the microcontroller, and driving the executing mechanism to adjust the air bag pressure by adopting a PID control algorithm so as to maintain the real-time pressure within the target pressure range; s4, the microcontroller gradually reduces the target pressure range according to the loosening time interval and the pressure reduction proportion to realize gradient loosening; s5, when the target pressure range is reduced below a safety threshold, the microcontroller controls the electromagnetic proportional valve to completely deflate and stop pressing; and S6, when the real-time pressure deviates from the target pressure range and exceeds the alarm threshold, the alarm module triggers an alarm. Preferably, the side of the balloon of the compres