Humidifying and heating system for breathing machine

Abstract

The invention relates to the field of medical instruments, in particular to a humidifying and heating system for a breathing machine, comprising a mechanical atomizing humidifier, wherein one of connectors of the mechanical atomizing humidifier is communicated with the breathing machine, the other connector of the mechanical atomizing humidifier is communicated with a breathing circuit, and the breathing circuit is provided with a heating mechanism. By adopting the scheme, the generation of condensed water is fundamentally eliminated, and the gas can still be transmitted to the patients in danger in relative temperature and humidity.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a humidifying and heating system for a ventilator. Background technique [0002] Critically ill patients in the ICU ward basically need to use a ventilator, but because the patient's self-breathing ability is exhausted, the input gas directly enters the lungs without being regulated by the human nasal cavity, so in the ventilator Before the gas enters the human body, the gas needs to be heated and humidified to reduce the burden on the patient. The traditional humidification system generally heats and evaporates water to generate water vapor, and then mixes water vapor and oxygen for humidification. Treatment, this humidification method, when the humidified mixed gas enters the breathing circuit, the temperature is relatively high, and the gas temperature gradually decreases due to the influence of the ambient temperature when the gas is transported in the lumen. When the gas tem...

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Problems solved by technology

[0002] Critically ill patients in the ICU ward basically need to use a ventilator, but because the patient's self-breathing ability is exhausted, the input gas directly enters the lungs without being regulated by the human nasal cavity, so in the ventilator Before the gas enters the human body, the gas needs to be heated and humidified to reduce the burden on the patient. The traditional humidification system generally heats and evaporates water to generate water vapor, and then mixes water vapor and oxygen for humidification. Treatment, this humidification method, when the humidified mixed gas enters the breathing circuit, the temperature is relatively high, and the gas temperature gradually decreases due to the influence of the ambient temperature when the gas is transported in the lumen. When the gas temperature drops below the dew point temperature, the lumen A large amount of condensed water will be generated in the humidification system. Although heating wires are installed in the breathing circuit of this humidification system to heat and keep the pipeline warm, the temperature of the gas coming out of the humidification tank is relatively high. If the temperature drops below the dew point temperature, condensed water will be generated. If no condensed water is generated in the lumen, the temperature in the lumen must be kept above the above temperature, but the suitable temperature for human breathing is 32-37°C. Excessively high temperature will increase the physical burden of critically ill patients and affect treatment. Condensed water in the lumen is not only easy to breed bacteria, but may also block the breathing circuit and enter the trachea of ​​critically ill patients, which may endanger the lives of critically ill patients Safety, although the ICU ward adopts 24-hour monitoring, the existence of condensed water will always endanger the safety of patients

[0003] In 201720986639.0, the condensed water alarm is adopted. When the condensed water accumulates in the breathing pipe and hinders normal breathing, an alarm is issued to remind critically ill patients or users to ensure normal use. However, this method does not essentially solve the problem of condensed water. question

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