WO2023115715A1 - 呼吸管温度控制电路、方法及呼吸辅助设备 - Google Patents

呼吸管温度控制电路、方法及呼吸辅助设备 Download PDF

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Publication number
WO2023115715A1
WO2023115715A1 PCT/CN2022/080036 CN2022080036W WO2023115715A1 WO 2023115715 A1 WO2023115715 A1 WO 2023115715A1 CN 2022080036 W CN2022080036 W CN 2022080036W WO 2023115715 A1 WO2023115715 A1 WO 2023115715A1
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Prior art keywords
control
control module
breathing tube
pin
main board
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PCT/CN2022/080036
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English (en)
French (fr)
Inventor
赵军
徐结兵
于海滨
Original Assignee
东莞永胜医疗制品有限公司
东莞永昇医疗科技有限公司
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Application filed by 东莞永胜医疗制品有限公司, 东莞永昇医疗科技有限公司 filed Critical 东莞永胜医疗制品有限公司
Priority to US18/026,992 priority Critical patent/US20240165364A1/en
Priority to JP2023513071A priority patent/JP7507312B2/ja
Priority to EP22854403.7A priority patent/EP4223345A4/en
Publication of WO2023115715A1 publication Critical patent/WO2023115715A1/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
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/1095—Preparation of respiratory gases or vapours by influencing the temperature in the connecting tubes
    • 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
    • A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
    • 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
    • A61M2205/3327—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
    • 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
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
    • 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
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • 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
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6018—General characteristics of the apparatus with identification means providing set-up signals for the apparatus configuration

Definitions

  • the invention relates to the technical field of medical devices, in particular to a breathing tube temperature control circuit, a method and a breathing assistance device.
  • Existing respiratory assistance equipment is usually equipped with a variety of pipelines, and each pipeline has an identification element and a temperature detection circuit. The temperature of the mouth and the air outlet is used to set the breathing working mode accordingly.
  • the identification element in the existing breathing assistance equipment is connected in series with the heating wire in the pipeline, and the temperature detection circuit, the power supply of the identification element and the transmission of the pipeline signal are all completed through a separate line, which makes the interface of the main board occupy more .
  • the purpose of the present invention is to provide a breathing tube temperature control circuit, method and breathing assistance equipment to solve the problem of the current identification element in the breathing assistance equipment being connected in series with the heating wire in the pipeline.
  • the power supply of the detection circuit and identification components and the transmission of pipeline signals are all completed through separate lines, which leads to the problem that the interface of the main board occupies a lot.
  • a breathing tube temperature control circuit used to be connected to a main board, the power supply end of the main board is connected to a heating wire, wherein the main board is provided with a first control module connected to the breathing tube temperature control circuit, the breathing tube
  • the tube temperature control circuit includes: a detection module and a second control module; wherein,
  • the detection module is connected to the second control module, and the detection module is used to collect the temperature data of the heating wire and send it to the second control module;
  • the second control module is connected to the first control module and the power supply terminal of the main board, and the second control module is used to send the breathing tube identification and the temperature data to the first control module;
  • the first control module outputs a heating signal to the second control module according to the breathing tube identification and the temperature data, and the second control module controls heating of the heating wire according to the heating signal.
  • the present invention realizes the collection and transmission of the breathing tube identification, the temperature data, and the transmission of the heating signal through the first control module and the second control module, and the heating wire and the
  • the second control module can share the power supply end of the main board, or, the power supply of the second control module, the heating wire and the communication between the first control module and the second control module all share the power supply of the main board In this way, the use of lines can be reduced, thereby reducing the occupation of the interface of the motherboard.
  • the second control module is connected to the power supply terminal of the main board, and connected to the first control module through the power supply terminal; the first control module modulates the heating signal to obtain the first Modulate the signal and send it to the second control module, the second control module demodulates the first modulated signal to obtain the first demodulated signal to heat the heating wire, and mark the breathing tube and The temperature data is modulated to obtain a second modulated signal and sent to the first control module, and the first control module demodulates the second modulated signal to obtain a second demodulated signal.
  • the first control module includes: a first control chip, the first control chip is provided with a signal transmitting pin and a signal receiving pin;
  • the second control module includes: a second control chip, the The second control chip is provided with a signal transmitting pin, a signal receiving pin, a power supply pin and a heating control pin;
  • the signal transmitting pin of the second control chip is connected with the signal receiving pin of the first control chip
  • the signal receiving pin of the second control chip is connected with the signal transmitting pin of the first control chip
  • the power supply pin of the second control chip is connected to the power supply terminal of the main board;
  • the heating control pin of the second control chip is used to control the disconnection or connection between the power supply terminal of the main board and the heating wire.
  • the first control module includes: a first control chip, and a signal transceiving pin is provided on the first control chip;
  • the second control module includes: a second control chip, and the second control chip The chip is provided with signal transceiver pins, power supply pins and heating control pins; among them,
  • the signal transceiving pin of the second control chip is connected to the signal transceiving pin of the first control chip
  • the power supply pin of the second control chip is connected to the power supply terminal of the main board;
  • the heating control pin of the second control chip is used to control the disconnection or connection between the power supply terminal of the main board and the heating wire.
  • the breathing tube temperature control circuit further includes: a first voltage conversion unit; the input terminal of the first voltage conversion unit is connected to the power supply terminal of the main board, and the output of the first voltage conversion unit The terminal is connected to the power supply pin of the second control chip.
  • the breathing tube temperature control circuit further includes: a first switch; the first switch is connected between the power supply terminal of the main board and the heating wire, and is connected to the second control chip Heating control pin connection.
  • the detection module includes: a first temperature sensor and a second temperature sensor; wherein,
  • One end of the first temperature sensor is connected to the first power supply pin of the second control chip, and the other end of the first temperature sensor is connected to the ground pin of the main board;
  • One end of the second temperature sensor is connected to the second power supply pin of the second control chip, and the other end of the second temperature sensor is connected to the ground pin of the main board.
  • both the first temperature sensor and the second temperature sensor are thermistors.
  • the present invention also provides a breathing tube temperature control method, which is applied to the above-mentioned breathing tube temperature control circuit, which includes:
  • the main board controls the heating wire to heat the gas in the breathing tube
  • the first control module outputs a heating signal to the second control module according to the breathing tube identification and the temperature data, and the second control module controls heating of the heating wire according to the heating signal.
  • the present invention also provides a breathing assistance device, including: a main board, and a breathing tube temperature control circuit as described above, the power supply end of the main board is connected to the heating wire, and the main board is provided with a The first control module connected to the breathing tube temperature control circuit.
  • Fig. 1 is a schematic diagram of the connection between the breathing tube temperature control circuit and the main board in one embodiment of the present invention.
  • Fig. 2 is a schematic diagram of signal modulation for signal transmission between MCU1 and MCU2.
  • Fig. 3 is a schematic diagram of the connection between the breathing tube temperature control circuit and the main board in another embodiment of the present invention.
  • Fig. 4 is a schematic flowchart of a method for controlling the temperature of the breathing tube in an embodiment of the present invention.
  • the present invention provides a breathing tube temperature control circuit, method and breathing assistance equipment.
  • a breathing tube temperature control circuit method and breathing assistance equipment.
  • the present invention provides a preferred embodiment of a breathing tube temperature control circuit.
  • a breathing tube temperature control circuit provided by the present invention is used to connect with the main board 100, the power supply terminal of the main board 100 is connected with the heating wire H1, wherein the main board 100 is provided with a
  • the breathing tube temperature control circuit is connected to the first control module 200 , and the breathing tube temperature control circuit includes: a detection module 300 and a second control module 400 .
  • the detection module 300 is connected with the second control module 400, and the detection module 300 is used to collect the temperature data of the heating wire H1 and send it to the second control module 400;
  • the second control module 400 and The first control module 200 is connected to the power supply terminal of the main board 100, and the second control module 400 is used to transmit the breathing tube identification and the temperature data to the first control module 200;
  • the module 200 outputs a heating signal to the second control module 400 according to the breathing tube identification and the temperature data, and the second control module 400 performs heating control on the heating wire H1 according to the heating signal.
  • the present invention uses the first control module 200 and the second control module 400 to realize the breathing tube identification and the collection and transmission of the temperature data, as well as the transmission of the heating signal, and the heating wire H1
  • the power supply terminal of the main board 100 can be shared with the second control module 400, or, the power supply of the second control module 400, the heating wire H1 and the connection between the first control module 200 and the second control module 400
  • the power supply end of the main board 100 is shared by all the inter-communication, so that the use of lines can be reduced, thereby reducing the occupation of the interface of the main board 100.
  • the second control module 400 is connected to the power supply terminal V+ of the motherboard 100, and connected to the first control module 200 through the power supply terminal V+; the first The control module 200 modulates the heating signal to obtain a first modulated signal and sends it to the second control module 400, and the second control module 400 demodulates the first modulated signal to obtain a first demodulated signal pair
  • the heating wire H1 performs heating control, and modulates the breathing tube mark and the temperature data to obtain a second modulation signal and sends it to the first control module 200, and the first control module 200 modulates the second modulation signal.
  • the signal is demodulated to obtain a second demodulated signal, and the first control module 200 outputs a heating signal to the second control module 400 according to the second demodulated signal.
  • the first control module 200 includes: a first control chip MCU1, and the first control chip MCU1 is provided with a signal transmitting pin and a signal receiving pin.
  • the second control module 400 includes: a second control chip MCU2, and the second control chip MCU2 is provided with a signal transmitting pin, a signal receiving pin, a power pin and a heating control pin.
  • the signal transmitting pin of the second control chip MCU2 is connected to the signal receiving pin of the first control chip MCU1
  • the signal receiving pin of the second control chip MCU2 is connected to the signal transmitting pin of the first control chip MCU1
  • the power supply pin of the second control chip MCU2 is connected to the power supply terminal V+ of the main board 100
  • the heating control pin of the second control chip MCU2 is used to control the heating between the power supply terminal V+ of the main board 100 and the heating wire H1. Disconnect or connect.
  • the signal transmitting pin of the second control chip MCU2 is connected to the signal receiving pin of the first control chip MCU1 through the power supply terminal V+ on the main board 100, and the signal receiving pin of the second control chip MCU2 is connected through the power supply terminal V+ on the main board 100.
  • the power supply terminal V+ on the motherboard 100 is connected to the signal transmitting pin of the first control chip MCU1.
  • the main board 100 is also provided with a second switch K2, one end of the second switch K2 is connected to a 24V power supply, and the other end of the second switch K2 is connected to the power supply terminal V+ of the main board 100 .
  • the first control chip MCU1 sends the first modulation signal to the second control chip MCU2
  • the second switch K2 is closed, and when the first control chip MCU1 receives the first modulation signal sent by the second control chip MCU2
  • Two modulated signals that is, when the second modulated signal is demodulated to obtain a second demodulated signal, the second switch K2 is turned off.
  • the breathing tube temperature control circuit also includes: a first voltage conversion unit; the input terminal of the first voltage conversion unit is connected to the power supply terminal V+ of the main board 100, and the output terminal of the first voltage conversion unit It is connected with the power supply pin of the second control module 400 .
  • the first voltage conversion unit is a voltage conversion chip L
  • the voltage conversion chip L is connected between the power supply pin of the second control chip MCU2 and the power supply terminal V+ of the main board 100, and can connect the The 24V voltage output by the motherboard 100 is converted into the 3.3V power supply voltage required by the second control chip MCU2.
  • the first control chip MCU1 sends a first modulation signal to the second control chip MCU2
  • the second control chip MCU2 A modulation signal is a 3.3V DC signal.
  • the second control chip MCU2 sends a second modulation signal to the first control chip MCU1
  • the second modulation signal is a 3.3V DC signal.
  • the first control chip MCU1 sends a heating signal and related acquisition commands, and the first control chip MCU1 will need
  • the signal to be sent is loaded on the 24V DC voltage, and the relevant command is sent in the first 10ms, that is, the first modulation signal is sent, and the second modulation signal sent back by the second control chip MCU2 in the second 10ms period is demodulated to obtain the second demodulated signal.
  • the second control chip MCU2 sends the breathing tube identification collected (the second control chip MCU2 can collect the breathing tube identification of the breathing tube or directly store the breathing tube identification) and temperature data, and will need to send the signal Load it on the 12V DC voltage, that is, send the second modulation signal, send the relevant command in the second 10ms, and demodulate the first modulation signal sent by the first control chip MCU1 in the first 10ms to obtain the first solution
  • the second control chip MCU2 controls the heating of the heating wire H1 according to the first demodulation signal.
  • the breathing tube temperature control circuit further includes: a first switch K1; the first switch K1 is connected between the power supply terminal V+ of the main board 100 and the heating wire H1, and is connected with the heating wire H1.
  • the heating control pin of the second control chip MCU2 is connected.
  • the second control chip MCU2 After the second control chip MCU2 receives the first modulation signal sent by the first control chip MCU1 and obtains the first demodulation signal, it controls the first switch K1 to turn off according to the first demodulation signal. Open or close, that is, control whether to heat the heating wire H1.
  • the data transmitted between the first control chip MCU1 and the second control chip MCU2 includes but not limited to request command, breathing tube identification data, temperature data or checksum, and the transmitted data is A set of secondary data.
  • the breathing tube identification data may include circuit identification code, breathing tube type, breathing tube model and other information.
  • the detection module 300 includes: a first temperature sensor RV1 and a second temperature sensor RV2 .
  • one end of the first temperature sensor RV1 is connected to the first power supply pin of the second control chip MCU2, and the other end of the first temperature sensor RV1 is connected to the ground pin of the main board 100;
  • the second One end of the temperature sensor RV2 is connected to the second power supply pin of the second control chip MCU2 , and the other end of the second temperature sensor RV2 is connected to the ground pin of the main board 100 .
  • the first temperature sensor RV1 is located at the air inlet port of the breathing tube to detect the temperature data of the air inlet port of the breathing tube
  • the second temperature sensor RV2 is located at the air outlet port of the breathing tube to monitor the temperature data of the breathing tube.
  • the temperature of the air outlet port of the sensor is detected, the second control chip MCU2 supplies power to the first temperature sensor RV1 and the second temperature sensor RV2, and the first temperature sensor RV1 and the second temperature sensor RV2 can The detected temperature data is fed back to the second control chip MCU2.
  • the first temperature sensor RV1 and the second temperature sensor RV2 may be thermistors.
  • both the power supply of the second control chip MCU2 and the heating wire H1 are connected to the power supply terminal V+ of the main board 100, and the first control chip MCU1 and the second control chip MCU2 are also connected through the The power supply terminal V+ is connected, then only a single wire is needed to realize the communication between the first control chip MCU1 and the second control chip MCU2, and the other end of the heating wire H1 is connected to the ground terminal GND of the main board 100, then The breathing tube temperature control circuit only needs two wires to realize the connection with the main board 100, which greatly reduces the occupation of the main board 100 interface.
  • the first control module 200 includes: a first control chip MCU1, and a signal transceiving pin is arranged on the first control chip MCU1;
  • the second control module 400 includes : the second control chip MCU2, the second control chip MCU2 is provided with a signal transceiving pin, a power supply pin and a heating control pin.
  • the signal transceiving pin of the second control chip MCU2 is connected with the signal transceiving pin of the first control chip MCU1; the power supply pin of the second control chip MCU2 is connected with the power supply terminal V+ of the main board 100; the The heating control pin of the second control chip MCU2 is used to control the disconnection or connection between the power supply terminal V+ of the main board 100 and the heating wire H1.
  • the second control chip MCU2 and the heating wire H1 are connected to the power supply terminal V+ of the main board 100 through a line, and the other end of the heating wire H1 is connected to the ground terminal GND of the main board 100.
  • a control chip MCU1 communicates with the second control chip MCU2 through a separate line, that is, to realize the transmission of heating signals, breathing tube identification, and temperature data.
  • a first voltage conversion chip L is connected to the power supply pin of the second control chip MCU2, so as to convert the 24V direct current output from the motherboard 100 into the power supply voltage 3.3V of the second control chip MCU2.
  • a first switch K1 is also provided between the heating wire H1 and the power supply terminal V+ of the main board 100, the first switch K1 is connected to the heating control pin of the second control chip MCU2, through the The control foot is heated to control the opening and closing of the first switch K1, thereby controlling the heating of the heating wire H1.
  • the breathing tube temperature control circuit only needs three wires to realize the connection with the main board 100, which greatly reduces the occupancy of the main board 100 interface.
  • the present invention also provides a breathing tube temperature control method, which is applied to the above-mentioned breathing tube temperature control circuit, which includes the steps of:
  • the main board controls the heating wire to heat the gas in the breathing tube
  • S200 Collect the temperature data of the air inlet port and the air outlet port of the breathing tube through the detection module, and send the breathing tube identification and the temperature data to the first control module through the second control module;
  • the first control module outputs a heating signal to the second control module according to the breathing tube identification and the temperature data, and the second control module controls heating of the heating wire according to the heating signal.
  • the details are as described in the embodiment of a breathing tube temperature control circuit, which will not be repeated here.
  • the present invention also provides a breathing assistance device, which may be a device such as a ventilator, and the device includes a plurality of breathing tubes, and heating wires are wound on the breathing tubes.
  • the breathing assistance device further includes: a main board and the above-mentioned breathing tube temperature control circuit, the power supply end of the main board is connected to a heating wire, and the main board is provided with a first circuit connected to the breathing tube temperature control circuit. control module.
  • the breathing tube temperature control circuit is specifically as described in an embodiment of the breathing tube temperature control circuit, and will not be repeated here.

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  • Health & Medical Sciences (AREA)
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  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

一种呼吸管温度控制电路、方法及呼吸辅助设备，呼吸管温度控制电路用于与主板（100）连接，主板（100）的供电端与加热丝H1连接，主板（100）上设置有与呼吸管温度控制电路连接的第一控制模块（200），呼吸管温度控制电路包括：检测模块（300）与第二控制模块（400）；检测模块（300）与第二控制模块（400）连接，检测模块（300）用于采集加热丝H1的温度数据并输送至第二控制模块（400）；第二控制模块（400）与第一控制模块（200）以及主板（100）的供电端连接，第二控制模块（400）用于将呼吸管标识以及温度数据输送至第一控制模块（200）；第一控制模块（200）根据呼吸管标识以及温度数据输出加热信号至第二控制模块（400），第二控制模块（400）根据加热信号对加热丝H1进行加热控制。这能够减少呼吸管温度控制电路与主板（100）之间线路的使用，从而减少了主板（100）的接口的占用。

Description

呼吸管温度控制电路、方法及呼吸辅助设备 技术领域
本发明涉及医疗器械技术领域，尤其涉及的是一种呼吸管温度控制电路、方法及呼吸辅助设备。
背景技术
现有的呼吸辅助设备通常配有多种管路，每根管路带有一个身份识别元件和温度检测电路，呼吸辅助设备通过身份识别元件来识别管路信息，并通过温度检测电路检测进气口与出气口的温度，以对呼吸工作模式进行相应的设置。
然而，现有的呼吸辅助设备中的识别元件与管路中的加热丝串联，温度检测电路以及识别元件的供电和管路信号的传输均是通过单独线路完成的，使得主板的接口占用较多。
因此，现有技术还有待于改进和发展。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种呼吸管温度控制电路、方法及呼吸辅助设备，以解决现有的呼吸辅助设备中的识别元件与管路中的加热丝串联，温度检测电路以及识别元件的供电和管路信号的传输均是通过单独线路完成所导致的主板的接口占用较多的问题。
本发明的技术方案如下：
一种呼吸管温度控制电路，用于与主板连接，所述主板的供电端与加热丝连接，其中所述主板上设置有与所述呼吸管温度控制电路连接的第一控制模块，所述呼吸管温度控制电路包括：检测模块与第二控制模块；其中，
所述检测模块与所述第二控制模块连接，所述检测模块用于采集加热丝的温度数据并输送至所述第二控制模块；
所述第二控制模块与所述第一控制模块以及所述主板的供电端连接，所述第二控制模块用于将呼吸管标识以及所述温度数据输送至所述第一控制模块；
所述第一控制模块根据所述呼吸管标识以及所述温度数据输出加热信号至所述第二控制模块，所述第二控制模块根据所述加热信号对加热丝进行加热控制。
在上述技术方案中，本发明通过所述第一控制模块与所述第二控制模块实现呼吸管标识以及所述温度数据的采集与传输，以及加热信号的传输，且所述加热丝与所述第二控制模块可共用主板的供电端，或者，所述第二控制模块、所述加热线的供电以及所述第一控制模块与所述第二控制模块之间通信均共用所述主板的供电端，这样，便能够减少线路的使用，从而减少了主板的接口的占用。
本发明的进一步设置，所述第二控制模块与所述主板的供电端连接，通过所述供电端与所述第一控制模块连接；所述第一控制模块将加热信号进行调制后得到第一调制信号并发送至所述第二控制模块，所述第二控制模块将所述第一调制信号进行解调以得到第一解调信号对加热丝进行加热控制，并将所述呼吸管标识以及所述温度数据进行调制得到第二调制信号并输送至所述第一控制模块，所述第一控制模块对所述第二调制信号进行解调以得到第二解调信号。
本发明的进一步设置，所述第一控制模块包括：第一控制芯片，所述第一控制芯片设置有信号发射脚与信号接收脚；所述第二控制模块包括：第二控制芯片，所述第二控制芯片上设置有信号发射脚、信号接收脚、电源脚以及加热控制脚；
所述第二控制芯片的信号发射脚与所述第一控制芯片的信号接收脚连接；
所述第二控制芯片的信号接收脚与所述第一控制芯片的信号发射脚连接；
所述第二控制芯片的电源脚与所述主板的供电端连接；
所述第二控制芯片的加热控制脚用于控制所述主板的供电端与加热丝之间的断开或连接。
本发明的进一步设置，所述第一控制模块包括：第一控制芯片，所述第一控制芯片上设置有信号收发脚；所述第二控制模块包括：第二控制芯片，所述第二控制芯片上设置有信号收发脚、电源脚以及加热控制脚；其中，
所述第二控制芯片的信号收发脚与所述第一控制芯片的信号收发脚连接；
所述第二控制芯片的电源脚与所述主板的供电端连接；
所述第二控制芯片的加热控制脚用于控制所述主板的供电端与加热丝之间的断开或连接。
本发明的进一步设置，所述呼吸管温度控制电路还包括：第一电压转换单元；所述第一电压转换单元的输入端与所述主板的供电端连接，所述第一电压转换单元的输出端与所述第二控制芯片的电源脚连接。
本发明的进一步设置，所述呼吸管温度控制电路还包括：第一开关；所述第一开关连接在所述主板的供电端与所述加热丝之间，并与所述第二控制芯片的加热控制脚连接。
本发明的进一步设置，所述检测模块包括：第一温度传感器与第二温度传感器；其中，
所述第一温度传感器的一端与所述第二控制芯片的第一供电脚连接，所述第一温度传感器的另一端与所述主板的接地脚；
所述第二温度传感器的一端与所述第二控制芯片的第二供电脚连接，所述第二温度传感器的另一端与所述主板的接地脚连接。
本发明的进一步设置，所述第一温度传感器与所述第二温度传感器均为热敏电阻。
基于同样的发明构思，本发明还提供了一种呼吸管温度控制方法，应用于上述所述的呼吸管温度控制电路，其包括：
主板控制加热丝对呼吸管中的气体进行加热；
通过检测模块采集呼吸管的进气口端与出气口端的温度数据，并通过第二控制模块将呼吸管标识以及所述温度数据输送至第一控制模块；
所述第一控制模块根据所述呼吸管标识与所述温度数据输出加热信号至所述第二控制模块，所述第二控制模块根据所述加热信号对加热丝进行加热控制。
基于同样的发明构思，本发明还提供了一种呼吸辅助设备，包括：主板，以及如上述所述呼吸管温度控制电路，所述主板的供电端与加热丝连接，所述主板上设置有与所 述呼吸管温度控制电路连接的第一控制模块。
附图说明
为了更清楚的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示出的结构获得其他的附图。
图1是本发明一个实施例中呼吸管温度控制电路与主板的连接示意图。
图2是MCU1与MCU2信号传输的信号调制原理图。
图3是本发明中另一个实施例中呼吸管温度控制电路与主板的连接示意图。
图4是本发明一个实施例中呼吸管温度控制方法的流程示意图。
附图中各标记：100、主板；200、第一控制模块；300、检测模块；400、第二控制模块。
具体实施方式
本发明提供一种呼吸管温度控制电路、方法及呼吸辅助设备，为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并举实例对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
在实施方式和申请专利范围中，除非文中对于冠词有特别限定，否则“一”、“一个”、“所述”和“该”也可包括复数形式。若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
应该进一步理解的是，本发明的说明书中使用的措辞“包括”是指存在所述特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。应该理解，当我们称元件被“连接”或“耦接” 到另一元件时，它可以直接连接或耦接到其他元件，或者也可以存在中间元件。此外，这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的措辞“和/或”包括一个或更多个相关联的列出项的全部或任一单元和全部组合。
本技术领域技术人员可以理解，除非另外定义，这里使用的所有术语(包括技术术语和科学术语)，具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语，应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样被特定定义，否则不会用理想化或过于正式的含义来解释。
另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
请同时参阅图1至图3，本发明提供了一种呼吸管温度控制电路的较佳实施例。
如图1与图3所示，本发明提供的一种呼吸管温度控制电路，用于与主板100连接，所述主板100的供电端与加热丝H1连接，其中所述主板100上设置有与所述呼吸管温度控制电路连接的第一控制模块200，所述呼吸管温度控制电路包括：检测模块300与第二控制模块400。其中，所述检测模块300与所述第二控制模块400连接，所述检测模块300用于采集加热丝H1的温度数据并输送至所述第二控制模块400；所述第二控制模块400与所述第一控制模块200以及所述主板100的供电端连接，所述第二控制模块400用于将呼吸管标识以及所述温度数据输送至所述第一控制模块200；所述第一控制模块200根据所述呼吸管标识以及所述温度数据输出加热信号至所述第二控制模块400，所述第二控制模块400根据所述加热信号对加热丝H1进行加热控制。
在上述技术方案中，本发明通过所述第一控制模块200与所述第二控制模块400实现呼吸管标识以及所述温度数据的采集与传输，以及加热信号的传输，且所述加热丝H1与所述第二控制模块400可共用主板100的供电端，或者，所述第二控制模块400、所述加热丝H1的供电以及所述第一控制模块200与所述第二控制模块400之间通信均共用所述主板100的供电端，这样，便能够减少线路的使用，从而减少了主板100的接 口的占用。
如图1所示，在一些实施例中，所述第二控制模块400与所述主板100的供电端V+连接，通过所述供电端V+与所述第一控制模块200连接；所述第一控制模块200将加热信号进行调制后得到第一调制信号并发送至所述第二控制模块400，所述第二控制模块400将所述第一调制信号进行解调以得到第一解调信号对加热丝H1进行加热控制，并将所述呼吸管标识以及所述温度数据进行调制得到第二调制信号并输送至所述第一控制模块200，所述第一控制模块200对所述第二调制信号进行解调以得到第二解调信号，所述第一控制模块200根据所述第二解调信号输出加热信号至所述第二控制模块400。
具体地，所述第一控制模块200包括：第一控制芯片MCU1，所述第一控制芯片MCU1设置有信号发射脚与信号接收脚。所述第二控制模块400包括：第二控制芯片MCU2，所述第二控制芯片MCU2上设置有信号发射脚、信号接收脚、电源脚以及加热控制脚。所述第二控制芯片MCU2的信号发射脚与所述第一控制芯片MCU1的信号接收脚连接，所述第二控制芯片MCU2的信号接收脚与所述第一控制芯片MCU1的信号发射脚连接，所述第二控制芯片MCU2的电源脚与所述主板100的供电端V+连接，所述第二控制芯片MCU2的加热控制脚用于控制所述主板100的供电端V+与加热丝H1之间的断开或连接。
其中，所述第二控制芯片MCU2的信号发射脚通过所述主板100上的供电端V+与所述第一控制芯片MCU1的信号接收脚连接，所述第二控制芯片MCU2的信号接收脚通过所述主板100上的供电端V+与所述第一控制芯片MCU1的信号发射脚连接。
所述主板100上还设置有第二开关K2，所述第二开关K2的一端接入24V电源，所述第二开关K2的另一端与主板100的供电端V+连接。当所述第一控制芯片MCU1向所述第二控制芯片MCU2发送第一调制信号时，所述第二开关K2闭合，当所述第一控制芯片MCU1接收所述第二控制芯片MCU2发送的第二调制信号，即对所述第二调制信号进行解调以得到第二解调信号时，所述第二开关K2断开。
进一步地，所述呼吸管温度控制电路还包括：第一电压转换单元；所述第一电压转 换单元的输入端与所述主板100的供电端V+连接，所述第一电压转换单元的输出端与所述第二控制模块400的电源脚连接。
具体地，所述第一电压转换单元为电压转换芯片L，所述电压转换芯片L连接在所述第二控制芯片MCU2的电源脚与所述主板100的供电端V+之间，能够将所述主板100输出的24V电压转换为所述第二控制芯片MCU2所需的3.3V的供电电压，当所述第一控制芯片MCU1向所述第二控制芯片MCU2发送第一调制信号时，所述第一调制信号为3.3V的直流电信号。当所述第二控制芯片MCU2向所述第一控制芯片MCU1发送第二调制信号时，所述第二调制信号为3.3V的直流电信号。
请结合图2，以一个周期为2000ms为一个控制周期为例，每2000ms的第一个10ms，所述第一控制芯片MCU1发送加热信号以及相关的获取命令，所述第一控制芯片MCU1将需要需要发送的信号加载24V直流电压上，在第一个10ms发送相关命令，即发送第一调制信号，并将第二个10ms时段所述第二控制芯片MCU2发回的第二调制信号进行解调以得到第二解调信号。第二个10ms所述第二控制芯片MCU2发送采集的呼吸管标识(所述第二控制芯片MCU2可以采集呼吸管的呼吸管标识或直接将呼吸管标识存储)以及温度数据，将需要发送的信号加载到12V直流电压上，即发送第二调制信号，在第二个10ms发送相关命令，并在第一个10ms所述第一控制芯片MCU1发送的第一调制信号进行解调以得到第一解调信号，所述第二控制芯片MCU2根据所述第一解调信号对加热丝H1进行加热控制。
可以理解的是，由于20ms只占2000ms的1％，因而对加热回路中加热丝H1的最大加热功率影响可以忽略不计，当然，所述第一控制芯片MCU1与所述第二控制芯片MCU2之间信号传输的控制周期也不限于是2000ms。
请参阅图1，进一步地，所述呼吸管温度控制电路还包括：第一开关K1；所述第一开关K1连接在所述主板100的供电端V+与所述加热丝H1之间，并与所述第二控制芯片MCU2的加热控制脚连接。
具体地，当所述第二控制芯片MCU2接收所述第一控制芯片MCU1发送的第一调制信号并得到第一解调信号后，根据所述第一解调信号控制所述第一开关K1断开或闭 合，即控制是否对加热丝H1进行加热。
需要说明的是，所述第一控制芯片MCU1与所述第二控制芯片MCU2之间传输的数据包括但不限于是请求命令、呼吸管标识数据、温度数据或校验和，所传输的数据为一组二级制数据。其中，呼吸管标识数据可包括回路识别码、呼吸管类型、呼吸管型号等信息。
请参阅图1，在一个实施例的进一步地实施方式中，所述检测模块300包括：第一温度传感器RV1与第二温度传感器RV2。其中，所述第一温度传感器RV1的一端与所述第二控制芯片MCU2的第一供电脚连接，所述第一温度传感器RV1的另一端与所述主板100的接地脚连接；所述第二温度传感器RV2的一端与所述第二控制芯片MCU2的第二供电脚连接，所述第二温度传感器RV2的另一端与所述主板100的接地脚连接。
具体地，所述第一温度传感器RV1位于呼吸管的进气端口，以对呼吸管进气端口的温度数据进行检测，所述第二温度传感器RV2则位于呼吸管的出气端口，以对呼吸管的出气端口的温度进行检测，所述第二控制芯片MCU2为所述第一温度传感器RV1以及所述第二温度传感器RV2供电，所述第一温度传感器RV1与所述第二温度传感器RV2能够将检测到的温度数据反馈至所述第二控制芯片MCU2。在一种实现方式中，所述第一温度传感器RV1与所述第二温度传感器RV2可以是热敏电阻。
在上述实施中，所述第二控制芯片MCU2与加热丝H1的供电均与所述主板100的供电端V+连接，且所述第一控制芯片MCU1与所述第二控制芯片MCU2也是通过所述供电端V+连接，那么所述仅需要单根线即可实现第一控制芯片MCU1与第二控制芯片MCU2之间的通信，而加热丝H1的另一端则与主板100的接地端GND连接，那么所述呼吸管温度控制电路仅仅需要两根线则可实现与主板100的连接，大大减少了主板100接口的占用。
如图3所示，在另一实施例中，所述第一控制模块200包括：第一控制芯片MCU1，所述第一控制芯片MCU1上设置有信号收发脚；所述第二控制模块400包括：第二控制芯片MCU2，所述第二控制芯片MCU2上设置有信号收发脚、电源脚以及加热控制脚。其中，所述第二控制芯片MCU2的信号收发脚与所述第一控制芯片MCU1的信号收发 脚连接；所述第二控制芯片MCU2的电源脚与所述主板100的供电端V+连接；所述第二控制芯片MCU2的加热控制脚用于控制所述主板100的供电端V+与加热丝H1之间的断开或连接。
具体地，所述第二控制芯片MCU2与所述加热丝H1通过一根线路与主板100的供电端V+连接，所述加热丝H1的另一端则与主板100的接地端GND连接，所述第一控制芯片MCU1与所述第二控制芯片MCU2单独通过一个线路完成通信，即实现加热信号、呼吸管标识、温度数据的传输。其中，在所述第二控制芯片MCU2的电源脚连接有第一电压转换芯片L，以实现将主板100输出的24V直流电转换为所述第二控制芯片MCU2的供电电压3.3V。同样的，所述加热丝H1与所述主板100的供电端V+之间也设置有第一开关K1，所述第一开关K1与所述第二控制芯片MCU2的加热控制脚连接，通过所述加热控制脚来控制所述第一开关K1打开与闭合，从而控制所述加热丝H1的加热。
在上述实施例中，通过将加热丝H1与第二控制芯片MCU2的供电采用一根线路与主板100连接，所述第一温度传感器RV1、所述第二温度传感器RV2采集的温度数据以及呼吸管的呼吸管标识通过所述第二控制芯片MCU2发送至所述第一控制芯片MCU1的线路与所述第一控制芯片MCU1的加热信号发送至所述第二控制芯片MCU2的线路为同一线路，这样，所述呼吸管温度控制电路仅仅需要三根线则可实现与主板100的连接，大大减少了主板100接口的占用。
请参阅图4，在一些实施例中，本发明还提供了一种呼吸管温度控制方法，应用于上述所述的呼吸管温度控制电路，其包括步骤：
S100、主板控制加热丝对呼吸管中的气体进行加热；
S200、通过检测模块采集呼吸管的进气口端与出气口端的温度数据，并通过第二控制模块将呼吸管标识以及所述温度数据输送至第一控制模块；
S300、所述第一控制模块根据所述呼吸管标识与所述温度数据输出加热信号至所述第二控制模块，所述第二控制模块根据所述加热信号对加热丝进行加热控制。具体如一种呼吸管温度控制电路的实施例所述，在此不再赘述。
在一些实施例中，本发明还提供了一种呼吸辅助设备，所述呼吸辅助设备可以是呼吸机等设备，该设备包括多条呼吸管，所述呼吸管上缠绕有加热丝。其中所述呼吸辅助设备还包括：主板以及上述所述的呼吸管温度控制电路，所述主板的供电端与加热丝连接，所述主板上设置有与所述呼吸管温度控制电路连接的第一控制模块。所述的呼吸管温度控制电路具体如一种呼吸管温度控制电路的实施例所述，在此不再赘述。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (10)

  1. 一种呼吸管温度控制电路，用于与主板连接，所述主板的供电端与加热丝连接，其中所述主板上设置有与所述呼吸管温度控制电路连接的第一控制模块，其特征在于，所述呼吸管温度控制电路包括：检测模块与第二控制模块；其中，
    所述检测模块与所述第二控制模块连接，所述检测模块用于采集加热丝的温度数据并输送至所述第二控制模块；
    所述第二控制模块与所述第一控制模块以及所述主板的供电端连接，所述第二控制模块用于将呼吸管标识以及所述温度数据输送至所述第一控制模块；
    所述第一控制模块根据所述呼吸管标识以及所述温度数据输出加热信号至所述第二控制模块，所述第二控制模块根据所述加热信号对加热丝进行加热控制。
  2. 根据权利要求1所述的呼吸管温度控制电路，其特征在于，所述第二控制模块与所述主板的供电端连接，并通过所述供电端与所述第一控制模块连接；所述第一控制模块将加热信号进行调制后得到第一调制信号并发送至所述第二控制模块，所述第二控制模块将所述第一调制信号进行解调以得到第一解调信号对加热丝进行加热控制，并将所述呼吸管标识以及所述温度数据进行调制得到第二调制信号并输送至所述第一控制模块，所述第一控制模块对所述第二调制信号进行解调以得到第二解调信号。
  3. 根据权利要求2所述的呼吸管温度控制电路，其特征在于，所述第一控制模块包括：第一控制芯片，所述第一控制芯片设置有信号发射脚与信号接收脚；所述第二控制模块包括：第二控制芯片，所述第二控制芯片上设置有信号发射脚、信号接收脚、电源脚以及加热控制脚；
    所述第二控制芯片的信号发射脚与所述第一控制芯片的信号接收脚连接；
    所述第二控制芯片的信号接收脚与所述第一控制芯片的信号发射脚连接；
    所述第二控制芯片的电源脚与所述主板的供电端连接；
    所述第二控制芯片的加热控制脚用于控制所述主板的供电端与加热丝之间的断开或连接。
  4. 根据权利要求1所述的呼吸管温度控制电路，其特征在于，所述第一控制模块包括：第一控制芯片，所述第一控制芯片上设置有信号收发脚；所述第二控制模块包括： 第二控制芯片，所述第二控制芯片上设置有信号收发脚、电源脚以及加热控制脚；其中，
    所述第二控制芯片的信号收发脚与所述第一控制芯片的信号收发脚连接；
    所述第二控制芯片的电源脚与所述主板的供电端连接；
    所述第二控制芯片的加热控制脚用于控制所述主板的供电端与加热丝之间的断开或连接。
  5. 根据权利要求3或4所述的呼吸管温度控制电路，其特征在于，所述呼吸管温度控制电路还包括：第一电压转换单元；所述第一电压转换单元的输入端与所述主板的供电端连接，所述第一电压转换单元的输出端与所述第二控制芯片的电源脚连接。
  6. 根据权利要求3或4所述的呼吸管温度控制电路，其特征在于，所述呼吸管温度控制电路还包括：第一开关；所述第一开关连接在所述主板的供电端与所述加热丝之间，并与所述第二控制芯片的加热控制脚连接。
  7. 根据权利要求3或4所述的呼吸管温度控制电路，其特征在于，所述检测模块包括：第一温度传感器与第二温度传感器；其中，
    所述第一温度传感器的一端与所述第二控制芯片的第一供电脚连接，所述第一温度传感器的另一端与所述主板的接地脚；
    所述第二温度传感器的一端与所述第二控制芯片的第二供电脚连接，所述第二温度传感器的另一端与所述主板的接地脚连接。
  8. 根据权利要求7所述的呼吸管温度控制电路，其特征在于，所述第一温度传感器与所述第二温度传感器均为热敏电阻。
  9. 一种呼吸管温度控制方法，应用于权利要求1-8任一项所述的呼吸管温度控制电路，其特征在于，包括：
    主板控制加热丝对呼吸管中的气体进行加热；
    通过检测模块采集呼吸管的进气口端与出气口端的温度数据，并通过第二控制模块将呼吸管标识以及所述温度数据输送至第一控制模块；
    所述第一控制模块根据所述呼吸管标识与所述温度数据输出加热信号至所述第二控制模块，所述第二控制模块根据所述加热信号对加热丝进行加热控制。
  10. 一种呼吸辅助设备，其特征在于，包括：主板，以及如权利要求1-8任一项所述呼吸管温度控制电路，所述主板的供电端与加热丝连接，所述主板上设置有与所述呼吸管温度控制电路连接的第一控制模块。
PCT/CN2022/080036 2021-12-23 2022-03-09 呼吸管温度控制电路、方法及呼吸辅助设备 WO2023115715A1 (zh)

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