WO2021248581A1 - 空气和氧气混合监测的湿化治疗仪及其监测方法 - Google Patents

空气和氧气混合监测的湿化治疗仪及其监测方法 Download PDF

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WO2021248581A1
WO2021248581A1 PCT/CN2020/098650 CN2020098650W WO2021248581A1 WO 2021248581 A1 WO2021248581 A1 WO 2021248581A1 CN 2020098650 W CN2020098650 W CN 2020098650W WO 2021248581 A1 WO2021248581 A1 WO 2021248581A1
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oxygen
air
supply
monitoring
oxygen concentration
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PCT/CN2020/098650
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English (en)
French (fr)
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张强
田莹
陈少纯
刘思远
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山东科技大学
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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
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • 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
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1025—Measuring a parameter of the content of the delivered gas the O2 concentration

Definitions

  • the invention relates to the technical field of medical machinery, in particular to a humidification treatment instrument for mixed monitoring of air and oxygen and a monitoring method thereof.
  • the instrument for treatment humidification treatment instrument is one of them.
  • the humidification treatment instrument can perform oxygen therapy and humidification treatment. It is applied to patients who can breathe independently but with weak breathing. Such patients are commonly seen in tracheal intubation and tracheotomy. Such patients can completely use humidification.
  • the treatment device performs treatment at home, alleviating the shortage of medical resources in our country.
  • the humidification treatment instrument needs to mix air and oxygen during the working process, and adjust the current air supply intensity and air flow according to the current inhalation and exhalation intensity control of the patient undergoing humidification treatment, and adjust it according to the inhalation and exhalation needs of the currently undergoing treatment
  • the current supply of oxygen and air ensures the safety and reliability of the treatment process, and effectively promotes the humidification treatment device in the field of home treatment, further alleviating the pressure of insufficient medical resources in my country.
  • the prior art can only supply air and oxygen in proportion according to demand, and cannot realize monitoring and adjustment, and lacks a monitoring and adjustment mechanism, which leads to deviations between the oxygen concentration supplied by the humidifier and the required concentration in some cases. Therefore, it is necessary to design a humidification treatment instrument that monitors the mixture of air and oxygen to solve the above-mentioned problems.
  • the present invention provides a humidification treatment instrument for mixed monitoring of air and oxygen and a monitoring method thereof.
  • a humidification treatment instrument for mixed monitoring of air and oxygen including: a housing, a core computer, a data input port, an air inlet, an oxygen inlet, an external oxygen supply device, Oxygen control module and ultrasonic oxygen concentration sensor;
  • the data input port inputs the gas flow rate and the oxygen content of the gas required in the treatment process in the form of direct input, and transmits the input data to the core computer;
  • the air inlet is provided with a flow control valve, which is connected to the oxygen control module, and the core computer controls the on-off and opening size of the flow control valve to control the air flow into the oxygen control module; the air inlet
  • An air intake cover is provided on the outside to protect the air intake.
  • the air inlet is also provided with a filter device for filtering impurities in the air to ensure the cleanliness of the incoming air.
  • the outside of the oxygen inlet is connected to the external oxygen supply device, and the inside is connected to the oxygen control module.
  • the external oxygen supply device transports oxygen to the oxygen control module through the oxygen inlet, and the oxygen control module is controlled by the core computer. Adjust the current oxygen supply;
  • the ultrasonic oxygen concentration sensor is used to monitor the oxygen concentration in the mixed gas of the air and oxygen in the humidification treatment instrument and the mixed gas flow rate output by the humidification instrument to the outside world, and feed the data back to the core computer; the core The computer controls the oxygen output of the oxygen control module and the air flow at the flow control valve according to the feedback oxygen concentration information.
  • the present invention also provides a method for monitoring and controlling a humidification treatment instrument using air and oxygen mixed monitoring.
  • the process is shown in Fig. 1, and includes the following steps:
  • Step 1 Input the gas flow rate and the oxygen content of the gas required in the treatment process from the data input port, and transmit them to the core computer, and the core computer calculates the preset ratio of air to oxygen;
  • Step 2 The ultrasonic oxygen concentration sensor detects the current output oxygen concentration value and gas flow value in real time, and feeds it back to the core computer;
  • Step 3 The core computer judges whether the oxygen concentration value meets the requirements, if it meets the requirements, execute step 4, if it does not meet the requirements, execute step 5;
  • Step 4 Then determine whether the output gas flow value meets the requirements. If it does not meet the requirements, adjust the air supply according to the preset ratio of air to oxygen, and then go to step 3; if it meets the requirements, there is no need to adjust the air flow of the flow control valve And the oxygen output of the oxygen control module, end the adjustment;
  • the method of adjusting the air supply according to the preset ratio of air to oxygen judging whether the flow rate of the output gas is greater than required, and if it is greater than required, reducing the supply of oxygen and air according to the preset ratio of air to oxygen; vice versa According to the preset ratio of air to oxygen, increase the supply of oxygen and air.
  • Step 5 Then judge whether the output gas flow value meets the requirements, if it meets the requirements, adjust the oxygen concentration, and go to step 3; if it does not meet the requirements, adjust the supply of air and oxygen according to the oxygen concentration at the current moment, and go to Go to step 3.
  • the method for adjusting the oxygen concentration is to determine whether the oxygen concentration of the output gas is greater than required, if it is greater, the oxygen supply amount is reduced, and the air supply amount is increased; otherwise, the oxygen supply amount is increased and the air supply amount is reduced.
  • the method for adjusting the supply amount of air and oxygen according to the oxygen concentration at the current moment is as follows:
  • S3 Determine whether the flow rate of the output gas is greater than required. If it is greater than required, reduce the supply of oxygen and air according to the adjustment ratio value of air and oxygen; otherwise, increase the ratio of oxygen and air according to the adjustment ratio value of air and oxygen. Supply amount.
  • the present invention uses an ultrasonic oxygen concentration sensor to monitor the output gas flow and oxygen concentration of the humidification treatment instrument in real time, and feedback the detection result to the system computer.
  • the system computer uses the ultrasonic oxygen concentration sensor to detect the output gas flow rate and The current oxygen concentration is further processed, and the output of oxygen in the oxygen control module and the flow of air in the flow control valve are adjusted according to the actual situation, and the reliability of the working process of the humidification treatment device is ensured under the synergistic effect of the two.
  • the present invention monitors the current output oxygen concentration value and gas flow value in real time, and realizes real-time feedback, which can diagnose the malfunction of the humidification treatment instrument in time, conduct timely maintenance, and prevent operation under malfunction conditions.
  • the present invention utilizes the humidification treatment instrument for mixed monitoring of air and oxygen, reduces the difficulty of the operation of the humidification treatment instrument, and can save certain medical resources.
  • Fig. 1 is a flow chart of a method for monitoring and controlling a humidification treatment instrument using air and oxygen mixed monitoring according to the present invention
  • FIG. 2 is a schematic diagram of the structure of a humidification treatment instrument for mixed monitoring of air and oxygen in an embodiment of the present invention
  • Fig. 3 is a structural control block diagram of a humidification treatment instrument for mixed monitoring of air and oxygen in an embodiment of the present invention
  • 1 is the oxygen control module
  • 2 is the oxygen inlet
  • 3 is the air inlet
  • 4 is the data input port
  • 5 is the power interface
  • 6 is the housing.
  • a humidification treatment instrument for mixed monitoring of air and oxygen has a structure as shown in Figure 2, including: a housing 6, a core computer, a data input port 4, an air inlet 3, an oxygen inlet 2, an external oxygen supply device , The connection relationship between each structure of the oxygen control module 1 and the ultrasonic oxygen concentration sensor is shown in Figure 3;
  • the data input port inputs the gas flow rate and the oxygen content of the gas required in the treatment process in the form of direct input, and transmits the input data to the core computer;
  • the air inlet is provided with a flow control valve, which is connected to the oxygen control module, and the core computer controls the on-off and opening size of the flow control valve to control the air flow into the oxygen control module; the air inlet
  • An air intake cover is provided on the outside to protect the air intake.
  • the air inlet is also provided with a filter device to filter impurities in the air to ensure the cleanliness of the incoming air. In this embodiment, filter cotton is used to filter the output air.
  • the outside of the oxygen inlet is connected to the external oxygen supply device, and the inside is connected to the oxygen control module.
  • the external oxygen supply device transports oxygen to the oxygen control module through the oxygen inlet, and is responsible for oxygen supply during the working process of the humidification treatment instrument. Work.
  • the oxygen control module is controlled by the core computer to adjust the current oxygen supply;
  • the ultrasonic oxygen concentration sensor is used to monitor the oxygen concentration in the mixed gas of the air and oxygen in the humidification treatment instrument and the mixed gas flow rate output by the humidification instrument to the outside world, and feed the data back to the core computer; the core The computer controls the oxygen output of the oxygen control module and the air flow at the flow control valve according to the feedback oxygen concentration information.
  • a method for monitoring and controlling is performed by a humidification treatment instrument with mixed monitoring of air and oxygen.
  • the process is shown in Fig. 1, and includes the following steps:
  • Step 1 Input the gas flow rate and the oxygen content of the gas required in the treatment process from the data input port, and transmit it to the core computer, and the core computer calculates the preset ratio of air to oxygen; in this embodiment, the data input port enters the The required gas flow rate is 3L/min, and the oxygen content of the gas is 44.7%. At this time, the core computer will calculate the ratio of purified air to oxygen to be 7:3. At this time, the air supply is 2.1L/min and the oxygen is 0.9 L/min.
  • Step 2 The ultrasonic oxygen concentration sensor detects the current output oxygen concentration value and gas flow value in real time, and feeds it back to the core computer;
  • Step 3 Determine whether the oxygen concentration value meets the 7:3 requirement by the core computer.
  • the oxygen concentration error value control range is ⁇ 3%. If it meets the requirements and is controlled within the error range, perform step 4. If it does not meet the requirements, go to step 5;
  • Step 4 Then judge whether the output gas flow value meets the required 3L/min. If it does not meet the requirements, adjust the air supply according to the preset air to oxygen ratio of 7:3, and then go to step 3; if it meets the requirements, no need Adjust the air flow of the flow control valve and the oxygen output of the oxygen control module to end the adjustment;
  • the method of adjusting the air supply according to the preset ratio of air and oxygen Determine whether the flow rate of the output gas is greater than required, and if it is greater than required, reduce the supply of oxygen and air according to the preset ratio of air to oxygen of 7:3 On the contrary, according to the preset ratio of air to oxygen of 7:3, increase the supply of oxygen and air.
  • Step 5 Then judge whether the output gas flow value meets the requirements, if it meets the requirements, adjust the oxygen concentration, and go to step 3; if it does not meet the requirements, adjust the supply of air and oxygen according to the oxygen concentration at the current moment, and go to Go to step 3.
  • the method for adjusting the oxygen concentration judge whether the oxygen concentration of the output gas is greater than 44.7%, if it is greater, reduce the oxygen supply and increase the air supply; otherwise, increase the oxygen supply and reduce the air supply.
  • the method for adjusting the supply amount of air and oxygen according to the oxygen concentration at the current moment is as follows:
  • S3 Determine whether the flow rate of the output gas is greater than required. If it is greater than required, reduce the supply of oxygen and air according to the adjustment ratio value of air and oxygen; otherwise, increase the ratio of oxygen and air according to the adjustment ratio value of air and oxygen. Supply amount.
  • the oxygen concentration at the current moment is less than 44.7%
  • the air flow rate at the current moment is 2.55 L/min
  • the oxygen flow rate is 0.45 L/min
  • the ratio of the two is 17:3.
  • the ratio is preset
  • the ratio of air to oxygen is 7:3.
  • the oxygen concentration needs to be adjusted higher, and the ratio of the two should be adjusted to 33:23, that is, the air flow rate is adjusted to 1.65L/min, and the oxygen flow rate is 1.35L/min.
  • the system computer monitors the oxygen concentration value in real time, until the oxygen content is 44.7%, the system computer of the humidification treatment instrument controls the air flow and the oxygen flow to restore the preset ratio of 7:3, that is, the air flow is 2.1L/min.
  • the oxygen flow rate is 0.9L/min, and the system works normally.

Abstract

本发明公开一种空气和氧气混合监测的湿化治疗仪及其监测方法，属于医疗机械技术领域，本发明利用超声波氧浓度传感器对湿化治疗仪输出的氧气浓度与气体流量进行实时监测，并且将检测结果实时反馈至系统计算机，系统计算机根据实时检测结果，通过调节与氧气入口连接的控氧模块和与进气口相连的流量控制阀共同调节湿化治疗仪当前的氧气浓度与气体输出流量。当气体流量或氧气浓度出现异常时，系统计算机将及时控制湿化治疗仪的控氧模块与流量控制阀进行调节，确保湿化治疗仪输出的气体流量以及氧气浓度符合要求，提高湿化治疗仪的可靠性，提高居家治疗的安全性。

Description

空气和氧气混合监测的湿化治疗仪及其监测方法 技术领域
本发明涉及医疗机械技术领域，尤其涉及一种空气和氧气混合监测的湿化治疗仪及其监测方法。
 背景技术
目前，我国人口基数大且老年人口众多，因此，我国医疗配套设施建设至关重要，虽然当今我国医疗技术较为发达，但人均医疗资源却严重不足，所以我国研制出一些能够保证无生命危险患者居家进行治疗的仪器，湿化治疗仪就是其中之一。湿化治疗仪能够进行氧气治疗、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。
       湿化治疗仪工作过程中需对空气与氧气进行混合，根据当前进行湿化治疗患者的吸呼强度控制调节当前的供气强度及供气流量，并根据当前进行治疗的患者的吸呼需要调节当前氧气与空气的供给量，确保治疗过程的安全可靠，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。现有技术仅能按照需求对空气与氧气按照比例进行供给，不能实现监测与调节，缺乏监控与调节机制，导致一些情况下湿化仪供给的氧气浓度与所需浓度存在偏差。因此，有必要设计空气和氧气混合监测的湿化治疗仪，以解决上述问题。
技术解决方案
针对上述现有技术的不足，本发明提供一种空气和氧气混合监测的湿化治疗仪及其监测方法。
为解决上述技术问题，本发明所采取的技术方案是：一种空气和氧气混合监测的湿化治疗仪，包括：外壳、核心计算机、数据输入端口、空气入口、氧气入口、外部供氧装置、控氧模块和超声波氧浓度传感器；
所述数据输入端口通过直接输入的形式输入治疗过程中所需的气体流量以及气体的含氧量，并将输入数据传输给所述核心计算机；
所述空气入口处设置有流量控制阀，流量控制阀与所述控氧模块相连，由核心计算机控制流量控制阀的通断及开口大小，从而控制进入控氧模块的空气流量；所述空气入口外部设置有进气罩，用于保护进气口。所述空气入口处还设置有过滤装置，用于过滤空气中的杂质，确保进入空气的洁净性。
所述氧气入口的外部与所述外部供氧装置相连，内部与所述控氧模块相连，外部供氧装置将氧气通过氧气入口输送至控氧模块，控氧模块由所述核心计算机控制，从而调节当前的供氧量；
所述超声波氧浓度传感器用于监测湿化治疗仪中空气和氧气混合后的气体中的氧气浓度和湿化仪向外界输出的混合气体流量，并将数据反馈给所述核心计算机；所述核心计算机根据反馈的氧气浓度信息，控制所述控氧模块的氧气输出量与流量控制阀处的空气流量。
此外，本发明还提供了一种采用空气和氧气混合监测的湿化治疗仪进行监测控制的方法，其流程如图1所示，包括如下步骤：
步骤1：由数据输入端口输入治疗过程中所需的气体流量和气体的含氧量，传输给核心计算机，核心计算机计算得到预设空气与氧气的比例值；
步骤2：超声波氧浓度传感器实时检测当前输出的氧气浓度值及气体流量值，反馈给核心计算机；
步骤3：由核心计算机判断氧气浓度值是否符合需求，若符合要求执行步骤4，若不符合要求则执行步骤5；
步骤4：接着判断输出气体流量值是否符合要求，若不符合要求则按照预设空气与氧气的比例调节供气后，转至执行步骤3；若符合要求则不需要调节流量控制阀的空气流量及控氧模块的的氧气输出量，结束调节；
所述按照预设空气与氧气的比例调节供气的方法：判断输出气体的流量是否大于所需，若大于所需则按照预设空气与氧气的比例值，降低氧气和空气的供给量；反之则按照预设空气与氧气的比例值，调高氧气和空气的供给量。
步骤5：接着判断输出气体流量值是否符合要求，若符合要求则调节氧气浓度，转至执行步骤3；若不符合要求则根据当前时刻的氧气浓度对空气与氧气的供给量进行调节，转至执行步骤3。
所述调节氧气浓度的方法：判断输出气体的氧气浓度是否大于所需，若大于则降低氧气供给量，调高空气的供给量；反之则调高氧气的供给量，降低空气的供给量。
所述根据当前时刻的氧气浓度对空气与氧气的供给量进行调节的方法如下：
S1：根据当前时刻的氧气浓度计算空气与氧气的比例；
S2：将当前时刻空气与氧气的比例与预设的空气与氧气的比例值进行比较，得到一个空气与氧气的调节比例值；
S3：判断输出气体的流量是否大于所需，若大于所需则按照空气与氧气的调节比例值调低氧气与空气的供给量；反之则按照空气与氧气的调节比例值调高氧气与空气的供给量。
 有益效果
1、本发明利用超声波氧浓度传感器对湿化治疗仪工作过程中的输出气体流量与氧气浓度进行实时监测，将检测结果反馈至系统计算机，系统计算机根据超声波氧浓度传感器的检测的输出气体流量与当前氧气浓度进行进一步处理，根据实际情况调节控氧模块中氧气的输出量以及流量控制阀中空气的流量，在二者协同作用下保证湿化治疗仪工作过程的可靠性。
2、本发明实时监测当前输出的氧气浓度值及气体流量值，并做到实时反馈，能够及时对湿化治疗仪的故障做出诊断，及时进行检修，防止故障条件下运行。
3、本发明利用空气和氧气混合监测的湿化治疗仪，降低湿化治疗仪操作工作的难度，能够节约一定的医疗资源。
 附图说明
图1为本发明采用空气和氧气混合监测的湿化治疗仪进行监测控制方法的流程图；
图2为本发明实施例中空气和氧气混合监测的湿化治疗仪的结构示意图；
图3为本发明实施例中空气和氧气混合监测的湿化治疗仪的结构控制框图；
其中，1为控氧模块，2为氧气入口，3为空气入口，4为数据输入端口，5为电源接口，6为外壳。
 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。
本实施例中一种空气和氧气混合监测的湿化治疗仪，其结构如图2所示，包括：外壳6、核心计算机、数据输入端口4、空气入口3、氧气入口2、外部供氧装置、控氧模块1和超声波氧浓度传感器，各结构间的连接关系如图3所示；
所述数据输入端口通过直接输入的形式输入治疗过程中所需的气体流量以及气体的含氧量，并将输入数据传输给所述核心计算机；
所述空气入口处设置有流量控制阀，流量控制阀与所述控氧模块相连，由核心计算机控制流量控制阀的通断及开口大小，从而控制进入控氧模块的空气流量；所述空气入口外部设置有进气罩，用于保护进气口。所述空气入口处还设置有过滤装置，用于过滤空气中的杂质，确保进入空气的洁净性，本实施例中采用过滤棉对输出的空气进行过滤操作。
所述氧气入口的外部与所述外部供氧装置相连，内部与所述控氧模块相连，外部供氧装置将氧气通过氧气入口输送至控氧模块，负责湿化治疗仪工作过程中的供氧工作。控氧模块由所述核心计算机控制，从而调节当前的供氧量；
所述超声波氧浓度传感器用于监测湿化治疗仪中空气和氧气混合后的气体中的氧气浓度和湿化仪向外界输出的混合气体流量，并将数据反馈给所述核心计算机；所述核心计算机根据反馈的氧气浓度信息，控制所述控氧模块的氧气输出量与流量控制阀处的空气流量。
本实施例中采用空气和氧气混合监测的湿化治疗仪进行监测控制的方法，其流程如图1所示，包括如下步骤：
步骤1：由数据输入端口输入治疗过程中所需的气体流量和气体的含氧量，传输给核心计算机，核心计算机计算得到预设空气与氧气的比例值；本实施例中数据输入端口输入所需气体流量为3L/min，气体的含氧量为44.7%，此时核心计算机将计算供给净化后的空气与氧气的比例为7:3，此时空气供给为2.1L/min，氧气为0.9L/min。
步骤2：超声波氧浓度传感器实时检测当前输出的氧气浓度值及气体流量值，反馈给核心计算机；
步骤3：由核心计算机判断氧气浓度值是否符合7:3的需求，本实施例中添加了氧气浓度的误差值控制范围为±3%，若符合要求并控制在误差范围内则执行步骤4，若不符合要求则执行步骤5；
步骤4：接着判断输出气体流量值是否符合要求的3L/min，若不符合要求则按照预设空气与氧气的比例7:3调节供气后，转至执行步骤3；若符合要求则不需要调节流量控制阀的空气流量及控氧模块的的氧气输出量，结束调节；
所述按照预设空气与氧气的比例调节供气的方法：判断输出气体的流量是否大于所需，若大于所需则按照预设空气与氧气的比例值7:3，降低氧气和空气的供给量；反之则按照预设空气与氧气的比例值7:3，调高氧气和空气的供给量。
步骤5：接着判断输出气体流量值是否符合要求，若符合要求则调节氧气浓度，转至执行步骤3；若不符合要求则根据当前时刻的氧气浓度对空气与氧气的供给量进行调节，转至执行步骤3。
所述调节氧气浓度的方法：判断输出气体的氧气浓度是否大于44.7%，若大于则降低氧气供给量，调高空气的供给量；反之则调高氧气的供给量，降低空气的供给量。
所述根据当前时刻的氧气浓度对空气与氧气的供给量进行调节的方法如下：
S1：根据当前时刻的氧气浓度计算空气与氧气的比例；
S2：将当前时刻空气与氧气的比例与预设的空气与氧气的比例值进行比较，得到一个空气与氧气的调节比例值；
S3：判断输出气体的流量是否大于所需，若大于所需则按照空气与氧气的调节比例值调低氧气与空气的供给量；反之则按照空气与氧气的调节比例值调高氧气与空气的供给量。
本实施例中，检测到当前时刻的氧气浓度小于44.7%，当前时刻的空气流量为2.55L/min，氧气流量为0.45L/min，两者的比值为17:3，将该比值比预设空气与氧气的比值7:3要大，此时需将氧气浓度调高，将两者的比值调节为33:23，即调节空气流量为1.65L/min，氧气流量为1.35L/min。系统计算机对氧气浓度值进行实时监测，直到监测到氧气含量为44.7%时，湿化治疗仪的系统计算机控制空气流量和氧气流量恢复预设的比值7:3，即空气流量2.1L/min，氧气流量0.9L/min，系统正常工作。

Claims (7)

  1. 一种空气和氧气混合监测的湿化治疗仪，其特征在于：包括外壳、核心计算机、数据输入端口、空气入口、氧气入口、外部供氧装置、控氧模块和超声波氧浓度传感器；
    所述数据输入端口通过直接输入的形式输入治疗过程中所需的气体流量以及气体的含氧量，并将输入数据传输给所述核心计算机；
    所述空气入口处设置有流量控制阀，流量控制阀与所述控氧模块相连，由核心计算机控制流量控制阀的通断及开口大小，从而控制进入控氧模块的空气流量；
    所述氧气入口的外部与所述外部供氧装置相连，内部与所述控氧模块相连，外部供氧装置将氧气通过氧气入口输送至控氧模块；控氧模块由所述核心计算机控制，从而调节当前的供氧量；
    所述超声波氧浓度传感器用于监测湿化治疗仪中空气和氧气混合后的气体中的氧气浓度和湿化仪向外界输出的混合气体流量，并将数据反馈给所述核心计算机；所述核心计算机根据反馈的氧气浓度信息，控制所述控氧模块的氧气输出量与流量控制阀处的空气流量。
  2. 根据权利要求1所述的空气和氧气混合监测的湿化治疗仪，其特征在于所述空气入口外部还设置有进气罩，用于保护进气口。
  3. 根据权利要求1或2所述的空气和氧气混合监测的湿化治疗仪，其特征在于所述空气入口处还设置有过滤装置，用于过滤空气中的杂质，确保进入空气的洁净性。
  4. 采用权利要求1所述的空气和氧气混合监测的湿化治疗仪进行监测控制的方法，其特征在于：包括如下步骤：
    步骤1：由数据输入端口输入治疗过程中所需的气体流量和气体的含氧量，传输给核心计算机，核心计算机计算得到预设空气与氧气的比例值；
    步骤2：超声波氧浓度传感器实时检测当前输出的氧气浓度值及气体流量值，反馈给核心计算机；
    步骤3：由核心计算机判断氧气浓度值是否符合需求，若符合要求执行步骤4，若不符合要求则执行步骤5；
    步骤4：接着判断输出气体流量值是否符合要求，若不符合要求则按照预设空气与氧气的比例调节供气后，转至执行步骤3；若符合要求则不需要调节流量控制阀的空气流量及控氧模块的的氧气输出量，结束调节；
    步骤5：接着判断输出气体流量值是否符合要求，若符合要求则调节氧气浓度，转至执行步骤3；若不符合要求则根据当前时刻的氧气浓度对空气与氧气的供给量进行调节，转至执行步骤3。
  5. 根据权利要求4所述的采用空气和氧气混合监测的湿化治疗仪进行监测控制的方法，其特征在于，所述步骤4中按照预设空气与氧气的比例调节供气的方法如下：
    判断输出气体的流量是否大于所需，若大于所需则按照预设空气与氧气的比例值，降低氧气和空气的供给量；反之则按照预设空气与氧气的比例值，调高氧气和空气的供给量。
  6. 根据权利要求4所述的采用空气和氧气混合监测的湿化治疗仪进行监测控制的方法，其特征在于，所述步骤5中调节氧气浓度的方法如下：
    判断输出气体的氧气浓度是否大于所需，若大于则降低氧气供给量，调高空气的供给量；反之则调高氧气的供给量，降低空气的供给量。
  7. 根据权利要求4所述的采用空气和氧气混合监测的湿化治疗仪进行监测控制的方法，其特征在于，所述步骤5中根据当前时刻的氧气浓度对空气与氧气的供给量进行调节的方法如下：
    S1：根据当前时刻的氧气浓度计算空气与氧气的比例；
    S2：将当前时刻空气与氧气的比例与预设的空气与氧气的比例值进行比较，得到一个空气与氧气的调节比例值；
    S3：判断输出气体的流量是否大于所需，若大于所需则按照空气与氧气的调节比例值调低氧气与空气的供给量；反之则按照空气与氧气的调节比例值调高氧气与空气的供给量。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115077147A (zh) * 2022-06-13 2022-09-20 威特龙消防安全集团股份公司 一种冷库注氮控氧防护系统及防护方法
CN115645691A (zh) * 2022-12-08 2023-01-31 四川港通医疗设备集团股份有限公司 一种具有流量自动控制装置的制氧机
CN116850401A (zh) * 2023-08-11 2023-10-10 广州医科大学附属第一医院（广州呼吸中心） 基于呼吸机的自学习智能过滤系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113108843B (zh) * 2021-04-21 2023-03-24 上海交通大学 一种微氧发生器及其产氧部件的检测治具和检测方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045883A1 (en) * 1999-02-04 2000-08-10 Versamed Medical Systems Ltd. Computer-controlled portable ventilator
US20040149285A1 (en) * 2003-01-23 2004-08-05 Maquet Critical Care Ab Gas supply monitoring apparatus and method
CN103071214A (zh) * 2011-10-25 2013-05-01 北京航天长峰股份有限公司 呼吸机输出氧浓度的控制方法
CN107320825A (zh) * 2017-08-21 2017-11-07 河北爱西欧医疗设备科技有限公司 正压湿化氧疗仪及其使用方法
CN109011090A (zh) * 2018-07-02 2018-12-18 南京乐基医疗器械有限公司 空氧混合气路设计及具有该气路的呼吸机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101507854B (zh) * 2009-03-23 2011-04-20 王中 带压缩空气的呼吸机空氧混合装置
CN102500021B (zh) * 2011-09-28 2014-07-30 于邦仲 一种先导式控制带智能peep呼吸机气路系统
CN203227165U (zh) * 2013-04-19 2013-10-09 四川澄观节能环保科技有限公司 医疗用便携式智能控制呼吸系统
CN104399164A (zh) * 2014-12-01 2015-03-11 北京神鹿腾飞医疗科技有限公司 智能呼吸机及使用该呼吸机的通气方法
US20160287824A1 (en) * 2015-04-03 2016-10-06 Invent Medical Corporation Ventilator
CN107019831A (zh) * 2016-01-29 2017-08-08 彭承环 一种用于呼吸机的氧气浓度监测装置
CN106063984A (zh) * 2016-07-21 2016-11-02 深圳市好家庭体育用品连锁经营有限公司 健身器材及其制氧雾化系统
CN209475338U (zh) * 2018-05-07 2019-10-11 北京仁禾康心医疗科技有限公司 高流量氧疗湿化仪

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045883A1 (en) * 1999-02-04 2000-08-10 Versamed Medical Systems Ltd. Computer-controlled portable ventilator
US20040149285A1 (en) * 2003-01-23 2004-08-05 Maquet Critical Care Ab Gas supply monitoring apparatus and method
CN103071214A (zh) * 2011-10-25 2013-05-01 北京航天长峰股份有限公司 呼吸机输出氧浓度的控制方法
CN107320825A (zh) * 2017-08-21 2017-11-07 河北爱西欧医疗设备科技有限公司 正压湿化氧疗仪及其使用方法
CN109011090A (zh) * 2018-07-02 2018-12-18 南京乐基医疗器械有限公司 空氧混合气路设计及具有该气路的呼吸机

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115077147A (zh) * 2022-06-13 2022-09-20 威特龙消防安全集团股份公司 一种冷库注氮控氧防护系统及防护方法
CN115077147B (zh) * 2022-06-13 2024-04-12 威特龙消防安全集团股份公司 一种冷库注氮控氧防护系统及防护方法
CN115645691A (zh) * 2022-12-08 2023-01-31 四川港通医疗设备集团股份有限公司 一种具有流量自动控制装置的制氧机
CN116850401A (zh) * 2023-08-11 2023-10-10 广州医科大学附属第一医院（广州呼吸中心） 基于呼吸机的自学习智能过滤系统
CN116850401B (zh) * 2023-08-11 2024-02-02 广州医科大学附属第一医院（广州呼吸中心） 基于呼吸机的自学习智能过滤系统

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