WO2021109706A1 - 呼吸支持设备湿化器温度控制方法及呼吸支持设备 - Google Patents

呼吸支持设备湿化器温度控制方法及呼吸支持设备 Download PDF

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WO2021109706A1
WO2021109706A1 PCT/CN2020/119261 CN2020119261W WO2021109706A1 WO 2021109706 A1 WO2021109706 A1 WO 2021109706A1 CN 2020119261 W CN2020119261 W CN 2020119261W WO 2021109706 A1 WO2021109706 A1 WO 2021109706A1
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temperature
humidifier
flow rate
heating device
gas flow
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PCT/CN2020/119261
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English (en)
French (fr)
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戴征
解立新
曾小辉
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湖南明康中锦医疗科技发展有限公司
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Publication of WO2021109706A1 publication Critical patent/WO2021109706A1/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
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • 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
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • 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
    • A61M16/161—Devices to humidify the respiration air with means for measuring the humidity
    • 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
    • A61M16/162—Water-reservoir filling system, e.g. automatic
    • 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
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • 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
    • 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
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • 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
    • 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
    • A61M2205/3368—Temperature

Definitions

  • the invention relates to the technical field of medical equipment manufacturing, in particular to a method for controlling the temperature of a humidifier of a breathing support device and a breathing support device.
  • high-end humidifiers generally have gas temperature and gas flow rate F detection functions, but because temperature detection and gas flow rate F monitoring accessories are expensive, complicated to install, and practically inconvenient, many doctors or nurses prefer to use them without The humidifier with gas temperature and gas flow rate detection function, but the humidifier without temperature and gas flow rate F detection function has inaccurate control of the breathing gas temperature, which will cause the output gas temperature to vary greatly depending on the gas flow rate. , Resulting in large deviations in the humidification capacity provided to patients under different gas flow rates, which results in poor patient experience and insufficient treatment effects.
  • the prior art discloses a heating humidifier and a heating humidification method (CN105920715A), which can quickly achieve the expected humidification effect and effectively reduce the humidification reaction time.
  • the heating humidifier includes: a processor and a humidification chamber, wherein the processor of the humidifier is connected to a gas flow rate F control unit, wherein one end of the gas flow rate F control unit is connected to the water storage tank and one end Connected to the humidification chamber of the humidifier; the processor adjusts the gas flow rate of the liquid flowing into the humidification chamber from the water storage tank by controlling the gas flow rate F control unit, and the heating humidifier uses a gas flow rate control unit,
  • the price is high, the installation is complicated, and the operation is inconvenient for the medical staff.
  • the purpose of the present invention is to overcome the shortcomings of the prior art, and propose a method for controlling the temperature of a humidifier of a breathing support device and a breathing support device, based on the feedback calculation of the heating device temperature detection device and the pressure detection device built in the water box of the humidifier
  • the current gas flow rate, feedback control method of heating device power this method can follow up different gas flow rates and water volume in the water box, control the power of the heating device, so that at the same temperature, different gas flow rate of the output gas temperature and Humidification can be basically the same.
  • the present invention provides a temperature control method for a humidifier of a respiratory support device, the steps of which include:
  • the humidifier controller obtains the target temperature T 0 of the target gear
  • the pressure detection device collects the pressure difference of the water box in the humidifier and feeds it back to the humidifier controller, and the humidifier controller calculates the water volume M 0 in the water box;
  • the humidifier controller controls the power of the heating device in the water box to P according to the acquired target temperature T 0 and the mass M 0 in the water box, and at the same time obtains the instantaneous temperature T and the stable temperature T 1 of the heating device at the current power P ;
  • the humidifier controller obtains the real-time flow rate F s by checking the flow rate table according to the stable temperature T 1 and M 0 ;
  • the humidifier controller obtains the real-time flow rate F s according to the stable temperature T 0 , and obtains the required temperature T out by checking the temperature meter or the temperature detection device;
  • the humidifier controller controls the output power of the heating device according to the acquired temperature T out and the real-time gas flow rate F s.
  • the step of checking the flow rate table to obtain the real-time flow rate F sn is as follows:
  • the output power of the heating device controlled by the humidifier controller is P s .
  • the gas flow rate in the flow rate table is F s , where P s is the arbitrary output power of the heating device, and F s is the output power of the heating device when the output power is Any gas flow rate at P s;
  • M s does not satisfy M s (n-1) ⁇ M s ⁇ M s (n+1), continue to obtain the value of M s in the flow rate table;
  • M s is any mass of water in the real-time water box
  • n is the serial index of the quality of different water boxes in the flow meter
  • T s does not satisfy T s (n-1) ⁇ T s ⁇ T s (n+1), continue to obtain the value of T s in the flow rate table, where T s is any stable temperature in the heating device, n Is the serial index of different temperatures in the flow rate table;
  • the flow rate table is obtained through measurement, and the flow rate table is stored in the humidifier controller.
  • the output power P s of the step S51 is selected as P 0 , P 0 +(P Max -P Min )/i, P 0 +(P Max -P Min )j/i,...P n , where P 0 is the initial power, P Min is the power when the heating device is not working, P Max is the power when the heating device is working at full power, i is the number of powers selected, and j is any value in i.
  • the flow rate tables in S51, S52, S53 and S53 indicate that the heating device is at P 0 , P 0 +(P Max -P Min )/i, P 0 +(P Max -P Min )j/i, ... Under any power of P n , the mass of the water box is M 0 -M n , and the temperature of the heating device is T 0 -T n. The next one corresponds to the gas flow rate F sn .
  • the search step takes thermometers obtaining stable temperature Tout as follows: in the step S6, the search step takes thermometer acquiring stable temperature T out as follows:
  • the humidifier controller obtains the target temperature T 0 of the target gear
  • the humidifier controller obtains the real-time flow rate F s according to and compares the interval where F s is located,
  • the humidifier controller controls the heating device to increase the real-time temperature
  • the humidifier controller controls the heating device to reduce the real-time temperature
  • the humidifier controller adjusts the heating device to the heating plate temperature T out corresponding to the target temperature.
  • thermometer is obtained through measurement, and the thermometer is stored in the humidifier controller.
  • the temperature table is an output target temperature T out table with a one-to-one correspondence between a stable temperature of T 0 -T n and a gas flow rate of F 0 -F n when the mass of the water box is M 0 -M n.
  • the present invention also provides a breathing support device adopting the above method for controlling the temperature of the humidifier of the breathing support device, which includes a breathing support device body, a humidifier, and a humidifier controller.
  • the humidifier is connected to the patient end through a heating pipeline, the humidifier controller is used to control the humidification amount and temperature generation of the humidifier, the humidifier includes a water box, and The water box is provided with a heating device and a pressure detection device, and the heating device is provided with a temperature detection device.
  • the humidifier controller is also provided with a first memory for storing a relational array of gas flow rate F sn and water box mass M 0 -M n , heating device temperature T 0 -T n and a first memory for storing target temperature
  • a first memory for storing a relational array of gas flow rate F sn and water box mass M 0 -M n
  • heating device temperature T 0 -T n and a first memory for storing target temperature
  • the heating device is a heating plate.
  • the pressure detection device is a pressure sensor.
  • the temperature detection device is a temperature sensor.
  • the temperature control method of the humidifier of the respiratory support equipment provided by the present invention is based on the feedback of the heating device temperature detection device and the pressure detection device built in the humidifier water box to calculate the current gas flow rate, and feedback the method of controlling the power of the heating device.
  • the method can follow up Different gas flow rates and water volume in the water box control the power of the heating device so that the output gas temperature and humidification energy are basically the same at the same temperature and different gas flow rates, so that no external temperature is required on the humidifier
  • the gas flow rate monitoring module can also achieve precise temperature control, saving equipment manufacturing costs, and also making the operation of the equipment simple and practical.
  • Figure 1 is a flow chart of the temperature control method of the humidifier of the respiratory support equipment of the present invention
  • Fig. 2 is a flow chart of obtaining real-time flow velocity by checking the flow velocity table of the present invention
  • Fig. 3 is a flow chart of obtaining stable temperature by checking the thermometer according to the present invention.
  • Figure 4 is a schematic block diagram of the respiratory support device of the present invention.
  • Example 1 Temperature control method for humidifier of respiratory support equipment
  • the present invention provides a temperature control method for a humidifier of a respiratory support device, the steps of which include:
  • the humidifier controller obtains the target temperature T 0 of the target gear
  • the pressure detection device collects the pressure difference of the water box in the humidifier and feeds it back to the humidifier controller, and the humidifier controller calculates the water volume M 0 in the water box;
  • the humidifier controller controls the power of the heating device in the water box to P according to the acquired target temperature T 0 and the mass M 0 in the water box, and at the same time obtains the instantaneous temperature T and the stable temperature T 1 of the heating device at the current power P ;
  • the humidifier controller obtains the real-time flow rate F s by checking the flow rate table according to the stable temperature T 1 and M 0 ;
  • the humidifier controller obtains the real-time flow rate F s according to the stable temperature T 0 , and obtains the required temperature T out by checking the temperature meter or the temperature detection device;
  • the humidifier controller controls the output power of the heating device according to the acquired temperature T out and the real-time gas flow rate F s.
  • step S5 the steps of checking the flow rate table to obtain the real-time flow rate F sn are as follows:
  • the output power of the heating device controlled by the humidifier controller is P s .
  • the gas flow rate in the flow rate table is F s , where P s is the arbitrary output power of the heating device, and F s is the output power of the heating device when the output power is Any gas flow rate at P s;
  • M s does not satisfy M s (n-1) ⁇ M s ⁇ M s (n+1), continue to obtain the value of M s in the flow rate table;
  • M s is any mass of water in the real-time water box
  • n is the serial index of the quality of different water boxes in the flow meter
  • T s does not satisfy T s (n-1) ⁇ T s ⁇ T s (n+1), continue to obtain the value of T s in the flow rate table, where T s is any stable temperature in the heating device, n Is the serial index of different temperatures in the flow rate table;
  • the flow rate table is obtained through measurement, and the flow rate table is stored in the humidifier controller.
  • the output power P s of step S51 is selected as P 0 , P 0 +(P Max -P Min )/i, P 0 +(P Max -P Min )j/i,...P n ,
  • P 0 is the initial power
  • P Min is the power when the heating device is not working
  • P Max is the power when the heating device is working at full power
  • i is the number of powers selected
  • j is any value in i.
  • the flow rate tables in S51, S52, S53, and S53 indicate that the heating device is at P 0 , P 0 +(P Max -P Min )/i, P 0 +(P Max -P Min )j / i, ... P n any power under a water cartridge is mass M 0 -M n, a temperature of T 0 -T n one-obtained gas flow rate F sn heating device.
  • the heating device is selected as P 0 , and the gas flow rate F corresponding to the temperature T and the water volume M is shown in Table 1.
  • the temperature T n and the mass M n are the gas flow rate Fnn under the condition that the power P 0 is unchanged.
  • the gas flow rate obtained is F 01 , and so on. According to Table 1, the gas flow rate corresponding to different temperatures and different amounts of water can be obtained.
  • the power P of the heating device is segmented from P Min to P Max , and then different data of T, M, F are measured respectively, as shown below, assuming that P 0 is P Min and P n is P Max Therefore, when the power of the heating device is P 0 +(P Max -P Min )/i, the gas flow rate F corresponding to the temperature T and the water volume M is shown in Table 2.
  • F'nn is the gas flow rate F value
  • nn only represents the subscript
  • F'nn is the same as the F nn subscript in the case of P 0 , and the specific values are different.
  • the power of the heating device is P 0 +(P Max -P Min )j/i
  • the value of the gas flow rate F corresponding to the temperature T and the water volume M is shown in Table 3.
  • Table 4 records the gas flow rate F”' corresponding to the temperature T”' and the water volume M”” when the heating device power is P n . Through the above table, you can query the gas when the heating device temperature T and water volume M are stable under different powers. The flow rate is F.
  • the steps of checking the temperature meter to obtain the stable temperature T out are as follows:
  • the humidifier controller obtains the target temperature T 0 of the target gear
  • the humidifier controller obtains the real-time flow rate F s according to and compares the interval where F s is located,
  • the humidifier controller controls the instant heating device to increase the real-time temperature
  • the humidifier controller controls the heating device to reduce the real-time temperature
  • the humidifier controller adjusts the heating device to the heating plate temperature T out corresponding to the target temperature.
  • thermometer is obtained through measurement, and the thermometer is stored in the humidifier controller.
  • the temperature table is an output target temperature T out table with a one-to-one correspondence between a stable temperature of T 0 -T n and a gas flow rate of F 0 -F n when the mass of the water box is M 0 -M n
  • the details are shown in Table 5.
  • n and nn are only subscripts, which are used to distinguish the values at different gas flow rates F and different temperatures T.
  • the embodiment of the present invention provides a temperature open-loop control method, by introducing a pressure detection device to detect the amount of water in the water tank, and then the gas flow rate can be obtained by a table look-up method, and the desired target temperature can be obtained by a table look-up method, and The relationship between the gas flow rate at the target temperature, the temperature and the amount of water in the water tank.
  • the temperature and humidification of the output gas are basically the same, so that no external temperature and gas flow detection modules are required on the humidifier, and accurate temperature control can be achieved, saving equipment
  • the manufacturing cost also makes the operation of the device simple and practical.
  • the present invention also provides a breathing support device adopting the above method for controlling the temperature of a humidifier of a breathing support device, including a breathing support device body, a humidifier, and a humidifier controller, the humidifier and the breathing support
  • the body of the device is connected by a breathing tube
  • the humidifier is connected with the patient end through a heating pipeline
  • the humidifier controller is used to control the humidification amount and temperature generation of the humidifier
  • the humidifier includes A water box, a heating device and a pressure detecting device are arranged in the water box, and a temperature detecting device is arranged on the heating device.
  • the humidifier controller is also provided with a first memory for storing the relationship array between the gas flow rate F sn and the mass of the water box M 0 -M n , the heating device temperature T 0 -T n and The second memory storing the relationship array of the target temperature T out, the gas flow rate F 0 -F n , and the mass of water in the water tank M 0 -M n.
  • the heating device is a heating plate for heating the water in the water box, so that the gas passing through the trachea in the water box is heated.
  • the temperature detection device is a temperature sensor for detecting the temperature of the heating plate, and feeding back the detected temperature to the humidifier control to control the temperature of the output gas.
  • the working principle of the present invention Since the humidifier of the present invention has no external gas temperature detection and gas flow detection modules, there is only one humidifier main unit, and the breathing gas can be controlled by the temperature detection device of the heating device on the humidifier main unit However, the different water volume in the water box and the different flow rate of the breathing gas will cause the temperature of the breathing gas to be different under the same temperature of the heating device.
  • the present invention adds a pressure detection device to measure the humidifier water on the basis of the humidifier host. The quality of the water in the box is detected by the water quality in the water box and the temperature detection device of the heating device to calculate the gas flow rate, thereby controlling the temperature of the humidifier output gas, and indirectly controlling the temperature and humidity of the humidifier output gas .

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Abstract

一种呼吸支持设备湿化器温度控制方法及呼吸支持设备。该方法包括引入压力检测装置检测水盒中的水量，然后通过查表法获取气体流速，进一步通过查表的方式得到所需目标温度，以及在目标温度下气体流速，温度与水盒内水量的关系。使得在相同的温度下，不同气体流速下输出气体的温度和湿化能达到基本一致。该呼吸支持设备包括湿化器和湿化器控制器，湿化器控制器用于控制湿化器的湿化量和温度的产生，湿化器包括水盒，水盒内设有加热装置和压力检测装置，加热板上设有温度检测装置，在无外置的温度和流量检测模块下仍能精准的控制目标温度。

Description

呼吸支持设备湿化器温度控制方法及呼吸支持设备 技术领域
本发明涉及医疗设备制造技术领域，具体的是一种呼吸支持设备湿化器温度控制方法及呼吸支持设备。
背景技术
目前高端的湿化器一般是带有气体温度和气体流速F检测功能，但是由于温度检测和气体流速F监测配件价格昂贵，安装复杂，实用不方便，因此，很多医生或护士更喜欢使用不带气体温度和气体流速检测功能的湿化器，然而不带温度和气体流速F检测功能的湿化器对于呼吸气体温度控制不准确，会随着气体流速的不同，会使得输出气体温度偏差很大，导致不同气体流速下给患者提供的湿化能力偏差很大，从而给患者的体验很差，并且达不到很好的治疗效果。
传统的，现有技术公开了一种加热湿化器以及加热湿化方法(CN105920715A)，能够快速达到预期湿化效果，有效减少湿化反应时间。其中，该加热湿化器，包括：处理器、湿化室，其中，所述湿化器的处理器连接气体流速F控制单元，其中，所述气体流速F控制单元一端与储水箱连接，一端与所述湿化器的湿化室连接；所述处理器通过控制气体流速F控制单元调节所述储水箱流入湿化室的液体的气体流速，该加热湿化器采用了气体流速控制单元，价格较高，安装复杂，医护人员操作不便。
因此，亟需一种无需外置的温度和气体流速检测模块的湿化器，但同样能够达到患者对湿化量和温度的需求。
发明内容
本发明的目的在于克服现有技术的不足，提出一种呼吸支持设备湿化器温度控制方法及呼吸支持设备，基于内置于湿化器水盒内的加热装置温度检测装置和压力检测装置反馈计算当前气体流速，反馈控制加热装置功率的方法，该方法能够跟进不同的气体流速和水盒内的水量，控制加热装置的功率，使得在相同的温度下，不同气体流速下输出气体的温度和湿化能达到基本一致。
为了实现上述目的，本发明提供一种呼吸支持设备湿化器温度控制方法，其步骤包括：
S1:开启湿化器主机，设定初始目标档位，其中，每个档位对应一个目标温 度；
S2：湿化器控制器获取目标档位的目标温度T 0；
S3:压力检测装置采集湿化器内水盒的压力差，反馈给湿化器控制器，所述湿化器控制器计算出水盒内水量M 0；
S4:湿化器控制器根据获取的目标温度T 0和水盒内质量M 0，控制水盒内的加热装置的功率为P，同时获取当前功率P下加热装置瞬时温度T和稳定温度T 1；
S5:湿化器控制器根据稳定温度T 1和M 0，通过查取流速表获取实时流速F s；
S6:湿化器控制器根据稳定温度T 0得到实时流速F s，通过查取温度表或者通过温度检测装置得到所需温度T out；
S7:湿化器控制器根据获取的温度T out和实时气体流速F s，控制加热装置的输出功率。
优选地，所述步骤S5中，所述查取流速表获取实时流速F sn的步骤如下：
S51:湿化器控制器控制加热装置的输出功率为P s对应的流速表中的气体流速为F s，其中，P s为加热装置的任意输出功率，F s为在加热装置在输出功率为P s时的任意气体流速；
S52:通过压力检测装置获取水盒内水量M s，获取并比较M s所在的区间,
如果M s(n-1)<M s<M s(n+1))继续比较获取T s所在的区间；
如果M s不满足M s(n-1)<M s<M s(n+1)，继续在流速表中获取M s的值；
其中，M s是实时水盒内水的任一质量，n为流速表中不同水盒质量的序列角标；
S53：通过温度检测装置获取加热装置的温度T s，获取并比较T s所在的区间,
如果T s(n-1)<T s<T s(n+1)继续比较获取T s所在的区间；
如果T s不满足T s(n-1)<T s<T s(n+1)，继续在流速表中获取T s的值，其中,T s为加热装置中的任一稳定温度，n为流速表中不同温度的序列角标；
S54：在M s(n-1)，M s(n+1)及T s(n-1)，T s(n+1)之间线性拟合获取实时流速F sn。
优选地，所述步骤S51、S52、S53和S53中，所述流速表为通过测量所得，流速表存储在湿化器控制器内。
优选地，所述步骤S51的输出功率P s选取为P 0、P 0+(P Max-P Min)/i、P 0+(P Max-P Min)j/i、…P n，其中P 0为初始功率，P Min即为加热装置不工作时的功率，P Max为加热装置满功率工作时的功率，i为选取功率的个数，j为i中的任意值。
优选地，所述S51、S52、S53和S53中的流速表为加热装置在P 0,P 0+(P Max-P Min)/i、P 0+(P Max-P Min)j/i、…P n中任一功率下，水盒质量为M 0-M n，加热装置的温度为T 0-T n下一一对应得到的气体流速F sn。
优选地，所述步骤S6中所述查取温度表获取稳定温度Tout的步骤如下：所述步骤S6中，所述查取温度表获取稳定温度T out的步骤如下：
S61:湿化器控制器获取目标档位的目标温度T 0；
S62:湿化器控制器根据获取实时流速F s，并比较F s所在区间，
如果F s(n-1)<F s<F s(n+1),继续获取稳定温度T s，并比较T s所在的区间；
如果F s不满足F s(n-1)<F s<F s(n+1)，继续在温度表中获取F s的值；
S63：在M s(n-1)，M s(n+1)及T s(n-1)，T s(n+1))之间判断目标温度T 0是否在该区间内；
如果目标温度大于该区间内温度，湿化器控制器则控制即热装置增大实时温度；
如果目标温度小于该区间内温度，湿化器控制器则控制加热装置减小实时温度；
如果满足在该温度区间内，湿化器控制器则调节加热装置到目标温度对应的加热板温度T out。
优选地，所述温度表通过测量所得，所述温度表存储在湿化器控制器内。
优选地，所述温度表为在水盒质量为M 0-M n时，稳定温度为T 0-T n和气体流速为F 0-F n一一对应的输出目标温度T out表。
本发明还提供一种采用上述呼吸支持设备湿化器温度控制方法的呼吸支持设备，包括呼吸支持设备本体、湿化器、湿化器控制器，所述湿化器与呼吸支持设备本体通过呼吸管路连接，所述湿化器通过加温管路与患者端连接，所述湿化器控制器用于控制湿化器的湿化量和温度的产生，所述湿化器包括水盒，所述水盒内设有加热装置和压力检测装置，所述加热装置上设有温度检测装置。
优选地，所述湿化器控制器上还设有用于存储气体流速F sn与水盒质量M 0-M n、加热装置温度T 0-T n关系数组的第一存储器和用于存储目标温度T out与气体流速F 0-F n、水盒内水的质量M 0-M n的关系数组的第二存储器。
优选地，所述加热装置为加热板。
优选地，所述压力检测装置为压力传感器。
优选地，所述温度检测装置为温度传感器。
由于本发明采用了以上技术方案，使本申请具备的有益效果在于：
本发明提供的呼吸支持设备湿化器温度控制方法，基于湿化器水盒内置的加热装置温度检测装置和压力检测装置反馈计算当前气体流速，反馈控制加热装置功率的方法，该方法能够跟进不同的气体流速和水盒内的水量，控制加热装置的功率，使得在相同的温度下，不同气体流速下输出气体的温度和湿化能达到基本一致，使得湿化器上无需外置的温度和气体流速监测模块，也能达到精确的温度控制，节约了设备制造成本，同时也使得该设备的操作简单实用。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的呼吸支持设备湿化器温度控制方法流程图；
图2为本发明的查取流速表获取实时流速的流程图；
图3为本发明的查取温度表获取稳定温度流程图；
图4为本发明的呼吸支持设备的示意框图；
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以具体实施例对本发明作进一步描述:
实施例1：呼吸支持设备湿化器温度控制方法
参照图1，本发明提供一种呼吸支持设备湿化器温度控制方法，其步骤包括：
S1:开启湿化器主机，设定初始目标档位，其中，每个档位对应一个目标温度；
S2：湿化器控制器获取目标档位的目标温度T 0；
S3:压力检测装置采集湿化器内水盒的压力差，反馈给湿化器控制器，所述 湿化器控制器计算出水盒内水量M 0；
S4:湿化器控制器根据获取的目标温度T 0和水盒内质量M 0，控制水盒内的加热装置的功率为P，同时获取当前功率P下加热装置瞬时温度T和稳定温度T 1；
S5:湿化器控制器根据稳定温度T 1和M 0，通过查取流速表获取实时流速F s；
S6:湿化器控制器根据稳定温度T 0得到实时流速F s，通过查取温度表或者通过温度检测装置得到所需温度T out；
S7:湿化器控制器根据获取的温度T out和实时气体流速F s，控制加热装置的输出功率。
作为优选的实施例，参照图2，所述步骤S5中，所述查取流速表获取实时流速F sn的步骤如下：
S51:湿化器控制器控制加热装置的输出功率为P s对应的流速表中的气体流速为F s，其中，P s为加热装置的任意输出功率，F s为在加热装置在输出功率为P s时的任意气体流速；
S52:通过压力检测装置获取水盒内水量M s，获取并比较M s所在的区间,
如果M s(n-1)<M s<M s(n+1))继续比较获取T s所在的区间；
如果M s不满足M s(n-1)<M s<M s(n+1)，继续在流速表中获取M s的值；
其中，M s是实时水盒内水的任一质量，n为流速表中不同水盒质量的序列角标；
S53：通过温度检测装置获取加热装置的温度T s，获取并比较T s所在的区间,
如果T s(n-1)<T s<T s(n+1)继续比较获取T s所在的区间；
如果T s不满足T s(n-1)<T s<T s(n+1)，继续在流速表中获取T s的值，其中,T s为加热装置中的任一稳定温度，n为流速表中不同温度的序列角标；
S54：在M s(n-1)，M s(n+1)及T s(n-1)，T s(n+1)之间线性拟合获取实时流速F sn。
作为优选的实施例，所述步骤S51、S52、S53和S53中，所述流速表为通过测量所得，流速表存储在湿化器控制器内。
作为优选的实施例，所述步骤S51的输出功率P s选取为P 0、P 0+(P Max-P Min)/i、P 0+(P Max-P Min)j/i、…P n，其中P 0为初始功率，P Min即为加热装置不工作时的功率，P Max为加热装置满功率工作时的功率，i为选取功率的个数，j为i中的任意值。
作为优选的实施例，所述S51、S52、S53和S53中的流速表为加热装置在 P 0,P 0+(P Max-P Min)/i、P 0+(P Max-P Min)j/i、…P n中任一功率下，水盒质量为M 0-M n，加热装置的温度为T 0-T n下一一对应得到的气体流速F sn。
在本实施例中选取加热装置为P 0,温度T和水量M对应的气体流速F如表1所示。
表1：功率为P 0，温度T和水量M对应的气体流速F
Figure PCTCN2020119261-appb-000001
通过表1，可以查得在功率P 0不变的情况下，温度T n，质量M n是的气体气体流速Fnn。例如，在水盒质量为M 0，温度是T 1时，查得的气体流速为F 01，依次类推，根据表1，能够查取到不同温度下，不同水量时对应的气体流速。
为了完善该方案，将加热装置的功率P从P Min到P Max进行分段，然后分别测量不同的T，M，F的数据，如下所示，假设P 0为P Min，P n为P Max，因此，得到加热装置功率为P 0+(P Max-P Min)/i时，温度T和水量M对应的气体流速F如表2所示。
表2：功率为P 0+(P Max-P Min)/i，温度T′和水量M′对应的气体流速F′
Figure PCTCN2020119261-appb-000002
其中F′ nn为气体流速F值，nn仅表示下标，F′ nn与P 0情况下的F nn下标一致，具体的值不同。
同样的还需要测得加热装置的功率为P 0+(P Max-P Min)j/i时，温度T和水量M对应的气体流速F的数值如表3所示，在本实施例子中，n＝5，因此需要测得加热装置的功率为P 0+(P Max-P Min)2/5、P 0+(P Max-P Min)3/5、P 0+(P Max-P Min)4/5、P 0+(P Max-P Min)下的温度T″和水量M″对应的气体流速F″。
表3：功率为P 0+(P Max-P Min)j/i，温度T″和水量M″对应的气体流速F″
Figure PCTCN2020119261-appb-000003
表4：功率为P n，温度T″′和水量M″′对应的气体流速F″′
Figure PCTCN2020119261-appb-000004
表4记录了加热装置功率为P n时，温度T″′和水量M″′对应的气体流速F″′。通过上述表格能够查询到不同功率下，加热装置温度T和水量M稳定时的气体流速为F。
作为优选的实施例，参照图3，所述查取温度表获取稳定温度T out的步骤如下：
S61:湿化器控制器获取目标档位的目标温度T 0；
S62:湿化器控制器根据获取实时流速F s，并比较F s所在区间，
如果F s(n-1)<F s<F s(n+1),继续获取稳定温度T s，并比较T s所在的区间；
如果F s不满足F s(n-1)<F s<F s(n+1)，继续在温度表中获取F s的值；
S63：在M s(n-1)，M s(n+1)及T s(n-1)，T s(n+1))之间判断目标温度T 0是否在该区间内；
如果目标温度大于该区间内温度，湿化器控制器则控制即热装置增大实时温度；
如果目标温度小于该区间内温度，湿化器控制器则控制加热装置减小实时温度；
如果满足在该温度区间内，湿化器控制器则调节加热装置到目标温度对应的加热板温度T out。
作为优选的实施例，所述温度表通过测量所得，所述温度表存储在湿化器控 制器内。
作为优选的实施例，所述温度表为在水盒质量为M 0-M n时，稳定温度为T 0-T n和气体流速为F 0-F n一一对应的输出目标温度T out表具体如表5所示。
表5：水盒水量为M 0时，温度T和气体流速F对应的目标温度
Figure PCTCN2020119261-appb-000005
其中，n，nn仅为下标，用于区别不同气体流速F，不同温度T下的数值。
本发明的实施例提供一种温度开环控制的方法，通过引入压力检测装置检测水盒中的水量，然后通过查表法可以获取气体流速，进一步通过查表的方式得到所需目标温度，以及在目标温度下气体流速，温度与水盒内水量的关系。使得在相同的温度下，不同气体流速下输出气体的温度和湿化能达到基本一致，使得湿化器上无需外置的温度和气体流速检测模块，也能达到精确的温度控制，节约了设备制造成本，同时也使得该设备的操作简单实用。
实施例2：呼吸支持设备
参照图4，本发明还提供一种采用上述呼吸支持设备湿化器温度控制方法的呼吸支持设备，包括呼吸支持设备本体、湿化器、湿化器控制器，所述湿化器与呼吸支持设备本体通过呼吸管路连接，所述湿化器通过加温管路与患者端连接，所述湿化器控制器用于控制湿化器的湿化量和温度的产生，所述湿化器包括水盒，所述水盒内设有加热装置和压力检测装置，所述加热装置上设有温度检测装置。
作为优选的实施例，所述湿化器控制器上还设有用于存储气体流速F sn与水盒质量M 0-M n、加热装置温度T 0-T n关系数组的第一存储器和用于存储目标温度T out与气体流速F 0-F n、水盒内水的质量M 0-M n的关系数组的第二存储器。
作为优选的实施例，所述加热装置为加热板，用于加热水盒内的水，使得通过水盒内的气管内的气体被加热。
作为优选的实施例，所述压力检测装置为压力传感器，所述压力传感器通过 F＝Mg来检测水盒内水的质量。
作为优选的实施例，所述温度检测装置为温度传感器，用于检测所述加热板的温度，并把检测到的温度反馈给湿化器控制，以控制输出气体的温度。
本发明的工作原理：由于本发明的湿化器无外置的气体温度检测和气体流速检测模块，仅有一湿化器主机，能通过湿化器主机上加热装置的温度检测装置去控制呼吸气体的温度，然而水盒内不同水量，呼吸气体不同的流速都会导致加热装置相同的温度情况下，呼吸气体的温度不同，本发明在湿化器主机的基础上增加压力检测装置测量湿化器水盒内水的质量，通过水盒内水的质量和加热装置的温度检测装置检测，来计算气体气体流速，从而控制湿化器输出气体的温度，间接控制湿化器输出气体的温湿度的目的。
以上是本发明的详细的介绍，本文中应用了具体个例对本发明的原理以及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法以及核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种呼吸支持设备湿化器温度控制方法，其特征在于，其步骤包括：
    S1:开启湿化器主机，设定初始目标档位，其中，每个档位对应一个目标温度；
    S2：湿化器控制器获取目标档位的目标温度T 0；
    S3:压力检测装置采集湿化器内水盒的压力差，反馈给湿化器控制器，所述湿化器控制器计算出水盒内水量M 0；
    S4:湿化器控制器根据获取的目标温度T 0和水盒内质量M 0，控制水盒内的加热装置的功率为P，同时获取当前功率P下加热装置瞬时温度T和稳定温度T 1；
    S5:湿化器控制器根据稳定温度T 1和M 0，通过查取流速表获取实时气体流速F s；
    S6:湿化器控制器根据稳定温度T 0得到实时气体流速F s，通过查取温度表或者通过温度检测装置得到所需温度T out；
    S7:湿化器控制器根据获取的温度T out和实时气体流速F s，控制加热装置的输出功率。
  2. 根据权利要求1所述的一种呼吸支持设备湿化器温度控制方法，其特征在于，所述步骤S5中，所述查取流速表获取实时流速F sn的步骤如下：
    S51:湿化器控制器控制加热装置的输出功率为P s对应的流速表中的气体流速为F s，其中，P s为加热装置的任意输出功率，F s为在加热装置在输出功率为P s时的任意气体流速；
    S52:通过压力检测装置获取水盒内水量M s，获取并比较M s所在的区间,
    如果M s(n-1)<M s<M s(n+1))继续比较获取T s所在的区间；
    如果M s不满足M s(n-1)<M s<M s(n+1)，继续在流速表中获取M s的值；
    其中，M s是实时水盒内水的任一质量，n为流速表中不同水盒质量的序列角标；
    S53：通过温度检测装置获取加热装置的温度T s，获取并比较T s所在的区间,
    如果T s(n-1)<T s<T s(n+1)继续比较获取T s所在的区间；
    如果T s不满足T s(n-1)<T s<T s(n+1)，继续在流速表中获取T s的值，其中,T s为加热装置中的任一稳定温度，n为流速表中不同温度的序列角标；
    S54：在M s(n-1)，M s(n+1)及T s(n-1)，T s(n+1)之间线性拟合获取气体流速F sn。
  3. 根据权利要求2所述的一种呼吸支持设备湿化器温度控制方法，其特征在于，所述步骤S51、S52、S53和S53中，所述流速表为通过测量所得，流速表存储在湿化器控制器内。
  4. 根据权利要求2所述的一种呼吸支持设备湿化器温度控制方法，其特征在于，所述步骤S51的输出功率P s选取为P 0、P 0+(P Max-P Min)/i、P 0+(P Max-P Min)j/i、…P n，其中P 0为初始功率，P Min即为加热装置不工作时的功率，P Max为加热装置满功率工作时的功率，i为选取功率的个数，j为i中的任意值。
  5. 根据权利要求2-4中任意一项所述的一种呼吸支持设备湿化器温度控制方法，其特征在于， 所述S51、S52、S53和S53中的流速表为加热装置在P 0,P 0+(P Max-P Min)/i、P 0+(P Max-P Min)j/i、…P n中任一功率下，水盒质量为M 0-M n，加热装置的温度为T 0-T n下一一对应得到的气体流速F sn。
  6. 根据权利要求1所述的一种呼吸支持设备湿化器温度控制方法，其特征在于，所述步骤S6中，所述查取温度表获取稳定温度T out的步骤如下：
    S61:湿化器控制器获取目标档位的目标温度T 0；
    S62:湿化器控制器根据获取实时流速F s，并比较F s所在区间，
    如果F s(n-1)<F s<F s(n+1),继续获取稳定温度T s，并比较T s所在的区间；
    如果F s不满足F s(n-1)<F s<F s(n+1)，继续在温度表中获取F s的值；
    S63：在M s(n-1)，M s(n+1)及T s(n-1)，T s(n+1))之间判断目标温度T 0是否在该区间内；
    如果目标温度大于该区间内温度，湿化器控制器则控制即热装置增大实时温度；
    如果目标温度小于该区间内温度，湿化器控制器则控制加热装置减小实时温度；
    如果满足在该温度区间内，湿化器控制器则调节加热装置到目标温度对应的加热板温度T out。
  7. 根据权利要求1或6中所述的一种呼吸支持设备湿化器温度控制方法，其特征在于，所述温度表通过测量所得，所述温度表存储在湿化器控制器内。
  8. 根据权利要求1或6中所述的一种呼吸支持设备湿化器温度控制方法，其特征在下于，所述温度表为在水盒质量为M 0-M n时，稳定温度为T 0-T n和气体流速为F 0-F n一一对应的输出目标温度T out表。
  9. 一种采用权利要求1-8任意一项所述的呼吸支持设备湿化器温度控制方法的呼吸支持设备，其特征在于，包括呼吸支持设备本体、湿化器、湿化器控制器，所述湿化器与呼吸支持设备本体通过呼吸管路连接，所述湿化器通过加温管路与患者端连接，所述湿化器控制器用于控制湿化器的湿化量和温度的产生，所述湿化器包括水盒，所述水盒内设有加热装置和压力检测装置，所述加热装置上设有温度检测装置。
  10. 根据权利要求9所述的呼吸支持设备，其特征在于，所述湿化器控制器上还设有用于存储气体流速F sn与水盒质量M 0-M n、加热装置温度T 0-T n关系数组的第一存储器和用于存储目标温度T out与气体流速F 0-F n、水盒内水的质量M 0-M n的关系数组的第二存储器。
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