WO2021248580A1 - 一种湿化治疗仪控制*** - Google Patents

一种湿化治疗仪控制*** Download PDF

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Publication number
WO2021248580A1
WO2021248580A1 PCT/CN2020/098649 CN2020098649W WO2021248580A1 WO 2021248580 A1 WO2021248580 A1 WO 2021248580A1 CN 2020098649 W CN2020098649 W CN 2020098649W WO 2021248580 A1 WO2021248580 A1 WO 2021248580A1
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control module
oxygen
trigger control
patient
quadratic curve
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PCT/CN2020/098649
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English (en)
French (fr)
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田莹
张强
陈少纯
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山东科技大学
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Publication of WO2021248580A1 publication Critical patent/WO2021248580A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • A61M16/122—Preparation of respiratory gases or vapours by mixing different gases with dilution
    • A61M16/125—Diluting primary gas with ambient air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow

Definitions

  • the invention relates to the technical field of automatic control of medical machinery, in particular to a control system for a humidification treatment instrument.
  • the present invention provides a humidification treatment instrument control system.
  • a control system for a humidification treatment instrument including:
  • the oxygen control module, the volume trigger control module, the quadratic curve tracking trigger control module, the peak flow rate trigger control module and the system computer; the volume trigger control module, the quadratic curve tracking trigger control module and the peak flow rate trigger control module are all connected to the system computer For information exchange.
  • the capacity trigger control module monitors the oxygen storage of the oxygen control module, and adjusts the input of external oxygen according to the oxygen storage of the oxygen control module, and the adjustment method is as follows:
  • the capacity trigger module monitors the oxygen storage of the oxygen control module to determine whether the oxygen storage value is within the normal range. If the oxygen storage is greater than the normal range, notify the system computer to reduce the external oxygen input, and if the oxygen storage is less than the normal range, notify the system computer Increase the input of external oxygen.
  • the quadratic curve tracking trigger control module monitors the patient's breathing state, and transmits the monitoring data to the system computer for quadratic curve fitting, and uses the fitted quadratic curve to adjust the oxygen supply and supply humidity of the humidifier ; In addition, the fitted quadratic curve is compared with the patient’s current breathing state data to determine whether the patient’s breathing is abnormal. If there is an abnormality, the system computer will notify the quadratic curve tracking trigger control module, and the quadratic curve tracking trigger control module will send Alarm.
  • the breathing state of the patient includes the breathing rate, the amount of air in and out of each breath.
  • the quadratic curve fitting calls the polyfit function.
  • the peak flow rate trigger control module sets the percentage change range of the mixed gas of the output water vapor and purified air when the corresponding patient uses the humidifier according to the peak value of the gas output flow at the output end when different patients use the humidifier; the peak flow rate triggers the control module Real-time monitoring of the proportion of the mixed gas of water vapor and purified air in the output gas of the humidifier, and judge whether it exceeds the change range of the proportion of the mixed gas of output water vapor and purified air when the patient is using it. If it exceeds, adjust the maximum power of the humidifier, increase the supply of oxygen and water vapor, and update the peak gas output flow rate at the output end when the patient uses the humidifier according to the current patient's condition.
  • the present invention uses the capacity trigger control module to adjust the oxygen supply amount of the oxygen control module according to the actual situation, so as to ensure the stability and reliability of the oxygen supply of the entire system.
  • the quadratic curve tracking trigger control module of the present invention fits the law of the patient's inhalation and exhalation process through the system computer to perform the quadratic curve fitting, and according to the fitting curve, the humidification treatment instrument is supplied with oxygen and output water vapor during the working process and after purification The process of controlling the amount of air mixture to realize the intelligence of the work process.
  • the control system will quickly alarm to remind the attendant that the patient’s current breathing state is abnormal , To shorten the time for the escort to send the patient to the nearby medical institution for treatment in time.
  • the peak flow trigger control module of the present invention monitors the peak flow rate of the humidification treatment instrument during the working process, adjusts the working intensity of the humidification treatment instrument, and ensures that the external oxygen supply of the humidification treatment instrument and the The supply of the mixed gas of water vapor and purified air can still meet the needs of the patient in the inhalation and exhalation process, avoid the danger caused by low work intensity, and ensure the reliability of the medical process.
  • the three major systems of the volume trigger control module, the quadratic curve tracking trigger control module and the peak flow trigger control module are independent of each other and do not interfere with each other.
  • the monitoring results can also effectively achieve complementary advantages and ensure that the humidification treatment device is in operation. It is safe and reliable, and can achieve the expected therapeutic effect.
  • Figure 1 is a schematic structural diagram of a control system for a humidification treatment instrument in an embodiment of the present invention
  • Figure 2 is a working flow chart of the capacity trigger control module in the embodiment of the present invention.
  • Figure 3 is a working flow chart of the quadratic curve tracking trigger control module in the embodiment of the present invention.
  • Fig. 4 is a working flow chart of the peak flow rate trigger control module in the embodiment of the present invention.
  • control system of a humidification treatment instrument of this embodiment includes:
  • the oxygen control module, the volume trigger control module, the quadratic curve tracking trigger control module, the peak flow rate trigger control module and the system computer; the volume trigger control module, the quadratic curve tracking trigger control module and the peak flow rate trigger control module are all connected to the system computer For information exchange.
  • the capacity trigger control module monitors the oxygen storage of the oxygen control module, and adjusts the input of external oxygen according to the oxygen storage of the oxygen control module.
  • the process is shown in Figure 2, and the method is as follows:
  • the capacity trigger module monitors the oxygen storage of the oxygen control module to determine whether the oxygen storage value is within the normal range. If the oxygen storage is greater than the normal range, notify the system computer to reduce the external oxygen input, and if the oxygen storage is less than the normal range, notify the system computer Increase the input of external oxygen.
  • the working flow of the quadratic curve tracking trigger control module in this embodiment is shown in Figure 3.
  • the breathing state of the patient monitored in this embodiment includes the breathing rate, the amount of air in and out of each breath.
  • MATLAB is used to call the polyfit function to fit the quadratic curve of the patient's breathing state.
  • the working flow of the peak flow rate trigger control module in this embodiment is shown in Figure 4.
  • the mixed gas of water vapor and purified air is set when the corresponding patient uses the humidifier.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Air Conditioning Control Device (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

本发明公开一种湿化治疗仪控制***，属于医疗机械自动化控制技术领域，***采用***计算机对湿化仪进行自动化控制，包括容量触发控制模块、二次曲线跟踪触发控制模块以及峰流触发控制模块。其中，容量触发控制模块实时监测控氧模块的氧气量，调节湿化治疗仪当前的供氧状态；二次曲线跟踪触发控制模块对患者的吸呼规律进行二次拟合，当患者吸呼状态出现异常时，***及时报警，此外还根据实际情况调节气体的供给量；峰流触发控制模块实时监测***峰值流量，确保湿化治疗仪的气体供给在峰值流量的情况下仍能够满足需要。本发明不仅提高了湿化治疗仪的自动化程度，还保证湿化治疗仪治疗过程的可靠性。

Description

一种湿化治疗仪控制*** 技术领域
本发明涉及医疗机械自动化控制技术领域，尤其涉及一种湿化治疗仪控制***。
 背景技术
目前，我国人口众多，老龄化趋势愈加明显，因此，我国的医疗配套设施存在着一定不足，即便当今我国医疗技术较为发达，但是人均医疗资源却严重不足，所以一些能够保证无生命危险患者居家进行治疗的仪器应运而生，湿化治疗仪就是其中之一。湿化治疗仪能够对居家治疗的患者进行氧气治疗、湿化治疗，应用于能够自主呼吸但呼吸较弱的病患，此类病患常见于气管插管及气管切开手术中，此类患者完全可以利用湿化治疗仪居家进行治疗，缓解我国医疗资源紧张问题。
由于大部分操作人员非医学专业人员，因此，需要医疗器械在设计的过程中提高智能化程度，防止由于操作人员无医疗专业知识导致的操作失误，通过按需供气触发和吸入水蒸气与净化后空气的混合气的量保证，根据病人当前情况所需进行供气，并按照当前病人的呼吸量建立拟合曲线，根据拟合曲线利用计算机进行运算与处理实现供气的过程，有效的将湿化治疗仪推广于居家治疗领域，进一步缓解我国医疗资源不足的压力。
因此，有必要设计一种基于按需供气触发和吸入水蒸气与净化后空气的混合气的量保证技术的湿化治疗仪控制***，以解决上述问题。
 技术解决方案
针对上述现有技术的不足，本发明提供一种湿化治疗仪控制***。
为解决上述技术问题，本发明所采取的技术方案是：一种湿化治疗仪控制***，包括：
控氧模块、容量触发控制模块、二次曲线跟踪触发控制模块、峰流速触发控制模块和***计算机；所述容量触发控制模块、二次曲线跟踪触发控制模块和峰流速触发控制模块均与***计算机进行信息交互。
所述容量触发控制模块对所述控氧模块的氧气储量进行监控，并根据控氧模块的氧气储量，对外部氧气的输入进行调节，其调节方法如下：
容量触发模块对控氧模块的氧气储量进行监测，判断氧气储量值是否在正常范围内，若氧气储量大于正常范围则通知***计算机减少外部氧气的输入量，若氧气储量小于正常范围则通知***计算机加大外部氧气的输入量。
所述二次曲线跟踪触发控制模块监测患者呼吸状态，并将监测数据传输给***计算机进行二次曲线拟合，利用拟合后的二次曲线对湿化仪的氧气供给量和供给湿度进行调节；此外将拟合后的二次曲线与患者当前的呼吸状态数据进行比较，判断患者呼吸是否出现异常，若出现异常则***计算机通知二次曲线跟踪触发控制模块，二次曲线跟踪触发控制模块发出报警信号。
所述患者呼吸状态包括呼吸频率、每次呼吸时的进气量与吐气量。
所述二次曲线拟合调用ployfit函数。
所述峰流速触发控制模块根据不同患者使用湿化仪时输出端气体输出流量的峰值，设置相应患者使用时输出水蒸气与净化后的空气的混合气体的占比变化范围；峰流速触发控制模块实时监测湿化仪输出端输出气体中水蒸气与净化后的空气的混合气体的占比，并判断是否超出当前患者使用时输出水蒸气与净化后的空气的混合气体的占比变化范围，若超出则调节湿化仪的最大功率，增加氧气与水蒸气的供给量，并根据当前患者的情况更新该患者使用湿化仪时输出端气体输出流量的峰值。
 有益效果
1、本发明利用容量触发控制模块根据实际情况对控氧模块氧气的供给量进行调节，保证整个***供氧的稳定性与可靠性。
2、本发明的二次曲线跟踪触发控制模块将患者吸呼过程的规律通过***计算机进行二次曲线拟合，根据拟合曲线对湿化治疗仪工作过程中供氧与输出水蒸气与净化后空气的混合气的量的过程进行控制，实现工作过程的智能化，同时患者吸呼状态若明显与拟合曲线特征发生偏离，此时控制***快速进行报警，提醒陪护人员患者当前吸呼状态异常，为陪护人员将患者及时送往附近医疗机构进行救治缩短时间。
3、本发明的峰流触发控制模块监测湿化治疗仪工作过程的峰值流量，调节湿化治疗仪的工作强度，确保即使病人吸呼量较大情况下，湿化治疗仪的外界氧气供给以及水蒸气与净化后空气的混合气的供给仍能满足病人吸呼过程需要，避免工作强度过低带来危险，确保医疗过程的可靠性。
4、本发明中容量触发控制模块、二次曲线跟踪触发控制模块以及峰流触发控制模块三大***相互独立互不干涉，监测结果还能有效的实现优势互补，保证湿化治疗仪运行过程中具有安全可靠，能够达到预期的治疗效果。
 附图说明
图1为本发明实施例中湿化治疗仪控制***的结构示意图；
图2为本发明实施例中容量触发控制模块的工作流程图；
图3为本发明实施例中二次曲线跟踪触发控制模块的工作流程图；
图4为本发明实施例中峰流速触发控制模块的工作流程图。
 本发明的实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。
如图1所示，本实施例的一种湿化治疗仪控制***，包括：
控氧模块、容量触发控制模块、二次曲线跟踪触发控制模块、峰流速触发控制模块和***计算机；所述容量触发控制模块、二次曲线跟踪触发控制模块和峰流速触发控制模块均与***计算机进行信息交互。
本实施例中容量触发控制模块对所述控氧模块的氧气储量进行监控，并根据控氧模块的氧气储量，对外部氧气的输入进行调节，流程如图2所示，方法如下：
容量触发模块对控氧模块的氧气储量进行监测，判断氧气储量值是否在正常范围内，若氧气储量大于正常范围则通知***计算机减少外部氧气的输入量，若氧气储量小于正常范围则通知***计算机加大外部氧气的输入量。
本实施例中二次曲线跟踪触发控制模块的工作流程如图3所示，首先监测患者呼吸状态，并将监测数据传输给***计算机进行二次曲线拟合，再利用拟合后的二次曲线对湿化仪的氧气供给量和供给湿度进行调节；此外将拟合后的二次曲线与患者当前的呼吸状态数据进行比较，判断患者呼吸是否出现异常，若出现异常则***计算机通知二次曲线跟踪触发控制模块，二次曲线跟踪触发控制模块发出报警信号。
本实施例中监测的患者呼吸状态包括呼吸频率、每次呼吸时的进气量与吐气量。
本实施例中采用MATLAB调用ployfit函数来进行患者呼吸状态的二次曲线拟合。
本实施例中峰流速触发控制模块的工作流程如图4所示，根据不同患者使用湿化仪时输出端气体输出流量的峰值，设置相应患者使用时输出水蒸气与净化后的空气的混合气体的占比变化范围；峰流速触发控制模块实时监测湿化仪输出端输出气体中水蒸气与净化后的空气的混合气体的占比，并判断是否超出当前患者使用时输出水蒸气与净化后的空气的混合气体的占比变化范围，若超出则调节湿化仪的最大功率，增加氧气与水蒸气的供给量，并根据当前患者的情况更新该患者使用湿化仪时输出端气体输出流量的峰值。

Claims (7)

  1. 一种湿化治疗仪控制***，其特征在于：包括控氧模块、容量触发控制模块、二次曲线跟踪触发控制模块、峰流速触发控制模块和***计算机；所述容量触发控制模块、二次曲线跟踪触发控制模块和峰流速触发控制模块均与***计算机进行信息交互。
  2. 根据权利要求1所述的一种湿化治疗仪控制***，其特征在于：所述容量触发控制模块对所述控氧模块的氧气储量进行监控，并根据控氧模块的氧气储量，对外部氧气的输入进行调节。
  3. 根据权利要求1或2所述的一种湿化治疗仪控制***，其特征在于，所述容量触发控制模块对外部氧气的输入进行调节的方法如下：
    容量触发模块对控氧模块的氧气储量进行监测，判断氧气储量值是否在正常范围内，若氧气储量大于正常范围则通知***计算机减少外部氧气的输入量，若氧气储量小于正常范围则通知***计算机加大外部氧气的输入量。
  4. 根据权利要求1所述的一种湿化治疗仪控制***，其特征在于：所述二次曲线跟踪触发控制模块监测患者呼吸状态，并将监测数据传输给***计算机进行二次曲线拟合，利用拟合后的二次曲线对湿化仪的氧气供给量和供给湿度进行调节；此外将拟合后的二次曲线与患者当前的呼吸状态数据进行比较，判断患者呼吸是否出现异常，若出现异常则***计算机通知二次曲线跟踪触发控制模块，二次曲线跟踪触发控制模块发出报警信号。
  5. 根据权利要求4所述的一种湿化治疗仪控制***，其特征在于：所述患者呼吸状态包括呼吸频率、每次呼吸时的进气量与吐气量。
  6. 根据权利要求4所述的一种湿化治疗仪控制***，其特征在于：所述二次曲线拟合调用ployfit函数。
  7. 根据权利要求1所述的一种湿化治疗仪控制***，其特征在于：所述峰流速触发控制模块根据不同患者使用湿化仪时输出端气体输出流量的峰值，设置相应患者使用时输出水蒸气与净化后的空气的混合气体的占比变化范围；峰流速触发控制模块实时监测湿化仪输出端输出气体中水蒸气与净化后的空气的混合气体的占比，并判断是否超出当前患者使用时输出水蒸气与净化后的空气的混合气体的占比变化范围，若超出则调节湿化仪的最大功率，增加氧气与水蒸气的供给量，并根据当前患者的情况更新该患者使用湿化仪时输出端气体输出流量的峰值。
PCT/CN2020/098649 2020-06-08 2020-06-29 一种湿化治疗仪控制*** WO2021248580A1 (zh)

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