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CN-122005252-A - Stepped pressurizing mode for medical hyperbaric oxygen chamber

CN122005252ACN 122005252 ACN122005252 ACN 122005252ACN-122005252-A

Abstract

The invention relates to the technical field of medical hyperbaric oxygen chamber control, in particular to a step pressurizing mode for a medical hyperbaric oxygen chamber, which comprises the following steps: the individual physiological characteristic parameters of the heart rate variability basic value, the respiratory frequency baseline value and the body surface area of the user are obtained, the preset target treatment pressure is analyzed, and a staged pressurizing rate set containing a multi-stage pressure increasing rate and a corresponding target pressure sub-value is generated through a preset stepped pressurizing strategy model. And after pressurization is started, the real-time heart rate variability and the respiratory frequency of a user are collected in real time, the pressurization rate of the current stage is adjusted according to dynamic physiological data in each pressure increasing stage, and the next stage is started until the pressure in the cabin reaches the target pressure sub-value until the target treatment pressure is reached. The method combines individual physiological characteristics to customize stage pressurization parameters, dynamically regulates and controls pressurization rate according to real-time physiological data, and adapts to the physiological state of a user.

Inventors

  • LIU QIANG

Assignees

  • 深圳微子医疗有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1. A stepped pressurizing mode applicable to a medical hyperbaric oxygen chamber, comprising: Acquiring individual physiological characteristic parameters of a user, wherein the individual physiological characteristic parameters comprise heart rate variability basic values, respiratory frequency basic values and body surface areas of the user; Receiving and analyzing a preset target treatment pressure, wherein the target treatment pressure is a final gas pressure value required to be reached in the medical hyperbaric oxygen chamber after the pressurization operation is completed; Generating a staged pressurization rate set through a preset step pressurization strategy model according to the individual physiological characteristic parameters and the target treatment pressure, wherein the pressurization rate set comprises pressure increment rates of a plurality of pressure increment stages and target pressure sub-values of corresponding stages; after the pressurization operation is started, collecting dynamic physiological monitoring data of a user in the medical hyperbaric oxygen chamber in real time, wherein the dynamic physiological monitoring data comprises real-time heart rate variability and real-time respiratory rate; And in the pressurizing process of each pressure increasing stage, dynamically adjusting the pressure increasing rate of the current stage according to the dynamic physiological monitoring data, and entering the next pressure increasing stage when the gas pressure in the medical hyperbaric oxygen chamber reaches the target pressure sub-value until the target treatment pressure is reached.
  2. 2. The stepped pressurization method for a hyperbaric oxygen chamber according to claim 1, wherein the generating a staged pressurization rate set according to the individual physiological characteristic parameter and the target therapeutic pressure by a preset stepped pressurization strategy model comprises: inputting the heart rate variability basic value to a pressure tolerance analysis unit of the step pressurization strategy model, and calculating to obtain an initial pressure tolerance threshold value of a user; Inputting the respiratory frequency baseline value to a respiratory adaptability analysis unit of the ladder pressurization strategy model, and calculating to obtain a respiratory pressure load reference coefficient of a user; determining initial stage duration of a pressure increasing stage in a calculation unit of the ladder pressurization strategy model according to the body surface area, wherein the initial stage duration and the body surface area are in a negative correlation; The comprehensive calculation unit inputs the target treatment pressure, the initial pressure tolerance threshold, the respiratory pressure load reference coefficient and the initial stage duration into the step pressurization strategy model together; the comprehensive calculation unit determines the total number of pressure increment stages according to the difference value between the target treatment pressure and the initial pressure tolerance threshold; The comprehensive calculation unit distributes different initial pressure increasing rates for different pressure increasing stages according to the respiratory pressure load reference coefficient, wherein the initial pressure increasing rate distributed by the stage with higher respiratory pressure load reference coefficient is lower; The comprehensive calculation unit takes the initial stage duration as the initial stage duration of the first pressure increasing stage, calculates the initial stage duration of the subsequent pressure increasing stage by combining the total number of stages and the total target pressure, and forms a preliminary time plan of the pressurizing stage.
  3. 3. The step pressurization method for the medical hyperbaric oxygen chamber according to claim 2, wherein the step pressurization method for acquiring the dynamic physiological monitoring data of the user in the medical hyperbaric oxygen chamber in real time comprises the steps of: Continuously acquiring voltage waveforms of electrocardiosignals of a user through a bioelectric signal sensor worn on the body of the user; Analyzing continuously acquired electrocardiosignal voltage waveforms in real time, and calculating to obtain a variation degree value of a time interval between adjacent heartbeat cycles as the real-time heart rate variability; monitoring a flow rate signal of a user's respiratory airflow by a flow rate sensor disposed in an oxygen mask or respiratory line; And carrying out real-time processing on the monitored flow velocity signals, identifying the duration of a single breathing cycle, and calculating the real-time breathing frequency according to the number of the breathing cycles in unit time.
  4. 4. A stepped pressurizing system for a hyperbaric chamber for medical use according to claim 3, wherein said dynamically adjusting said pressure increment rate at the current stage in accordance with said dynamic physiological monitor data during said pressurizing of each pressure increment stage comprises: Continuously receiving the real-time heart rate variability and the real-time respiratory rate during pressurization in any pressure increasing stage; comparing the real-time heart rate variability received in the current stage with a heart rate variability basic value in the ladder pressurization strategy model, and calculating heart rate variability deviation degree; Comparing the real-time respiratory rate received in the current stage with a respiratory rate baseline value in the ladder pressurization strategy model, and calculating respiratory rate deviation degree; The calculated heart rate variability deviation degree and the respiratory rate deviation degree are input to a preset rate adjustment decision logic; the rate adjustment decision logic is pre-provided with a rate adjustment threshold; when the absolute value of any one of the heart rate variability deviation degree or the respiratory rate deviation degree exceeds the speed adjustment threshold value, the speed adjustment decision logic generates a deceleration pressurization instruction, and the initial pressure increment speed of the current pressure increment stage is adjusted downwards by one or more preset deceleration step sizes according to the deviation degree exceeding the threshold value; And when the absolute values of the heart rate variability deviation degree and the respiratory rate deviation degree do not exceed the rate adjustment threshold, the rate adjustment decision logic inquires a preset rate fine adjustment comparison table according to the values of the heart rate variability deviation degree and the respiratory rate deviation degree, obtains a correction increment corresponding to the pressure increment rate of the current stage, and finely adjusts the initial pressure increment rate of the current stage according to the correction increment.
  5. 5. The stepped pressurization system of claim 4, wherein said rate adjustment decision logic further generates a pause command based on said heart rate variability deviation from respiratory rate deviation, comprising: The speed adjustment decision logic is pre-provided with a pause pressurization threshold value, and the pause pressurization threshold value is larger than the speed adjustment threshold value; comparing the absolute value of each of the heart rate variability deviation and the respiratory rate deviation with the pause pressurization threshold value in real time during pressurization of any pressure increasing stage; When the absolute value of any one of the heart rate variability deviation and the respiratory rate deviation reaches or exceeds the pause pressurization threshold value, the rate adjustment decision logic immediately generates a pause pressurization instruction; Responding to the pressure suspension instruction, immediately stopping the pressurizing operation of the medical hyperbaric oxygen chamber, and maintaining the current gas pressure value in the medical hyperbaric oxygen chamber; Continuously monitoring the dynamic physiological monitoring data during the period of suspension of pressurization, and generating a pressurization restoration instruction by the rate adjustment decision logic after the absolute values of the heart rate variability deviation degree and the respiratory frequency deviation degree fall below the rate adjustment threshold value and a preset stable time is maintained; In response to the resume pressurization command, restarting the pressurization process for the current pressure increase phase at an initial pressure increase rate that is lower than the pre-pause pressure.
  6. 6. The stepped pressurizing system for a hyperbaric chamber of claim 5, further comprising the step of performing a stepwise adaptation assessment of a user prior to entering a next pressure increment phase, comprising: In the current pressure increasing stage, when the gas pressure in the medical hyperbaric oxygen chamber reaches the target pressure sub-value, keeping the gas pressure constant, and starting a stepwise adaptation assessment flow; collecting stability data of heart rate variability of a user and stability data of respiratory rate of the user in a specific time period under a state that gas pressure is constant; The acquired stability data of the heart rate variability of the user and the stability data of the respiratory rate of the user are input into the adaptability evaluation module in the ladder pressurization strategy model; The adaptability evaluation module calculates and obtains a comprehensive adaptation index according to the stability data of the heart rate variability of the user and the stability data of the respiratory frequency of the user; An adaptation threshold value for entering the next stage is preset in the adaptation evaluation module; Comparing the comprehensive adaptation index with the adaptation threshold value of the next stage; when the comprehensive adaptation index is greater than or equal to the adaptation threshold value for entering the next stage, the adaptation evaluation module generates an instruction for allowing entering the next stage; When the comprehensive adaptation index is smaller than the adaptation threshold value entering the next stage, the adaptation evaluation module generates an instruction for prolonging the adaptation time of the stage; and responding to the instruction for prolonging the adaptation time of the stage, prolonging the integral multiple time of the specific time under the current gas pressure, and re-executing the process from collecting the stability data to comparing the comprehensive adaptation index until the comprehensive adaptation index meets the condition or reaches the preset maximum extension time.
  7. 7. The step pressurization method for a medical hyperbaric oxygen chamber according to claim 6, wherein the step pressurization strategy model inputs collected stability data of heart rate variability of a user and stability data of respiratory rate of the user into the adaptability evaluation module, and the step pressurization strategy model comprises: The adaptability evaluation module performs statistical analysis on the heart rate variability stability data in a specific duration, calculates the ratio of the variance to the mean value of the heart rate variability, and uses the ratio as a heart rate stability coefficient; The adaptability evaluation module performs statistical analysis on the respiratory rate stability data in a specific duration, calculates the ratio of the variance to the mean value of the respiratory rate, and uses the ratio as a respiratory stability coefficient; Extracting a heart rate variability stable coefficient of a user and a respiratory rate stable coefficient of the user at the end of a previous pressure increasing stage from the staged pressurizing historical record; calculating the change rate of the heart rate stability coefficient of the current stage relative to the heart rate stability coefficient at the end of the previous stage, and taking the change rate as a heart rate adaptability increment; calculating the change rate of the respiratory stability coefficient of the current stage relative to the respiratory stability coefficient at the end of the previous stage, and taking the change rate as a respiratory adaptability increment; And carrying out weighted summation on the heart rate stability coefficient, the respiratory stability coefficient, the heart rate adaptability increment and the respiratory adaptability increment to obtain the comprehensive adaptation index.
  8. 8. The stepped pressurizing mode for a medical hyperbaric oxygen chamber according to claim 7, further comprising a dynamic safety guarantee step of the pressurizing process: establishing a safety range of dynamic physiological monitoring data, wherein the safety range comprises an upper limit and a lower limit of heart rate variability and an upper limit and a lower limit of respiratory frequency; Continuously comparing the real-time heart rate variability, real-time respiratory rate and the safety range during the whole pressurizing operation; When the real-time heart rate variability or the real-time respiratory rate exceeds the corresponding safety range, generating a safety intervention instruction immediately; the safety intervention instructions have a higher priority than any instructions that adjust the rate of pressure increase; and responding to the safety intervention instruction, immediately stopping the pressurizing process, reducing the pressure of the gas in the medical hyperbaric oxygen chamber to a preset safety pressure threshold value at a preset safety pressure reduction rate, and starting an audible and visual alarm.
  9. 9. The stepped pressurizing system for a hyperbaric chamber of claim 8, further comprising a pressure maintenance stage physiological condition monitoring and reevaluation step after said target therapeutic pressure is reached: continuously acquiring and recording heart rate variability and respiratory frequency in a maintenance stage in a stage that the gas pressure in the medical hyperbaric oxygen chamber is stabilized at the target treatment pressure; calculating the heart rate variability average value and the respiratory rate average value in the maintenance stage; comparing the calculated heart rate variability average value and the respiratory rate average value in the maintenance stage with the heart rate variability basic value and the respiratory rate baseline value in the physiological characteristic parameters of the individual; and according to the comparison result, evaluating the overall adaptation level of the user to the target treatment pressure, and generating an adaptation level evaluation report.
  10. 10. The step-by-step pressurizing method for a medical hyperbaric oxygen chamber according to claim 9, wherein the adaptation level evaluation report, the dynamic physiological monitoring data of each pressure increasing stage, the final adjusted pressurizing rate set and the result of the step-by-step adaptation evaluation are stored together as a complete record of the present pressurizing treatment process, and are used for updating the internal parameters of the step-by-step pressurizing strategy model.

Description

Stepped pressurizing mode for medical hyperbaric oxygen chamber Technical Field The invention relates to the technical field of medical hyperbaric oxygen chamber control, in particular to a step pressurization mode for a medical hyperbaric oxygen chamber. Background The pressurization operation of the existing medical hyperbaric oxygen chamber mostly adopts a step pressurization mode with preset fixed parameters, the pressurization rate and the pressure target value of each stage are preset according to general treatment standards, only the target treatment pressure which is finally needed to be achieved is used as the core basis of the pressurization operation, the establishment of the pressurization parameters is not combined with the individual physiological data of a user, the pressurization process only completes the pressure increment according to a preset program, and no physiological index participates in the planning and the execution regulation of the pressurization parameters in the whole process. The conventional hyperbaric oxygen chamber pressurization mode adopts uniform pressurization parameters to execute operation, individual differences of different users on heart rate variability, respiratory frequency base line and body surface area cannot be adapted, the fixed pressurization rate and stage pressure division are difficult to match physiological tolerance degrees of different users, and the condition of mismatch with physiological states of the users easily occurs in the pressurization process. Meanwhile, the conventional pressurization mode only operates according to a preset rate in each pressure increasing stage, the pressurization speed cannot be adjusted according to the real-time heart rate variability and the breathing frequency of a user, the special staged pressurization parameters cannot be generated according to individual physiological characteristics, and the pressurization process cannot be in adaptive association with the physiological basic state and the real-time physiological response of the user. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a step pressurizing mode for a medical hyperbaric oxygen chamber. In order to achieve the purpose, the invention adopts the following technical scheme that the step pressurizing mode for the medical hyperbaric oxygen chamber comprises the following steps: Acquiring individual physiological characteristic parameters of a user, wherein the individual physiological characteristic parameters comprise heart rate variability basic values, respiratory frequency basic values and body surface areas of the user; Receiving and analyzing a preset target treatment pressure, wherein the target treatment pressure is a final gas pressure value required to be reached in the medical hyperbaric oxygen chamber after the pressurization operation is completed; Generating a staged pressurization rate set through a preset step pressurization strategy model according to the individual physiological characteristic parameters and the target treatment pressure, wherein the pressurization rate set comprises pressure increment rates of a plurality of pressure increment stages and target pressure sub-values of corresponding stages; after the pressurization operation is started, collecting dynamic physiological monitoring data of a user in the medical hyperbaric oxygen chamber in real time, wherein the dynamic physiological monitoring data comprises real-time heart rate variability and real-time respiratory rate; And in the pressurizing process of each pressure increasing stage, dynamically adjusting the pressure increasing rate of the current stage according to the dynamic physiological monitoring data, and entering the next pressure increasing stage when the gas pressure in the medical hyperbaric oxygen chamber reaches the target pressure sub-value until the target treatment pressure is reached. As a further aspect of the present invention, the generating a staged pressurization rate set according to the individual physiological characteristic parameter and the target therapeutic pressure by a preset step pressurization strategy model includes: inputting the heart rate variability basic value to a pressure tolerance analysis unit of the step pressurization strategy model, and calculating to obtain an initial pressure tolerance threshold value of a user; Inputting the respiratory frequency baseline value to a respiratory adaptability analysis unit of the ladder pressurization strategy model, and calculating to obtain a respiratory pressure load reference coefficient of a user; determining initial stage duration of a pressure increasing stage in a calculation unit of the ladder pressurization strategy model according to the body surface area, wherein the initial stage duration and the body surface area are in a negative correlation; The comprehensive calculation unit inputs the target treatment pressure, the initial