A heating tube for breathing system, breathing system and control method thereof

Abstract

A heating tube for a breathing system, a breathing system and a control method thereof provided by the present invention, the heating tube includes: a tube body; a first joint and a second joint for measuring gas at the air inlet end of the tube body The first measurement module of the characteristics; the second measurement module for measuring the gas characteristics of the gas outlet end of the pipe body; the heating device is arranged between the first measurement module and the second measurement module and is electrically connected with it, and is used for transmitting Signal and heat the gas inside the tube. Remove external wiring and probes to prevent infection. A breathing system including a humidifier, gas supply, heated tubes as described above; and a controller. The respiratory system control method comprises the steps of: measuring the inlet end of the heating tube; measuring the gas outlet end of the tube; output power; adjusting the heating power of the humidifier and / or heating device in time and accurately by measuring the gas characteristics, that is, preventing condensation water The generation, and output a better comfort gas for the patient.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a heating tube for a breathing system, a breathing system and a control method thereof. Background technique [0002] During the process of delivering the heated and humidified gas generated by the humidifier to the patient through the catheter (breathing circuit tube), due to the ambient temperature difference, it is easy to generate condensed water on the inner wall of the breathing circuit tube, and the existence of condensed water may cause large breathing problems. Hidden dangers, including condensed water is easy to breed bacteria and infect patients, and condensed water blocks the breathing circuit tube, resulting in the gas delivered to the patient end not reaching the relative standard temperature and humidity, which is likely to cause respiratory discomfort of the patient, and may even cause breathing difficulties and endanger the life safety of the patient For this rea...

AI Technical Summary

Problems solved by technology

[0002] During the process of delivering the heated and humidified gas generated by the humidifier to the patient through the catheter (breathing circuit tube), due to the ambient temperature difference, it is easy to generate condensed water on the inner wall of the breathing circuit tube, and the existence of condensed water may cause large breathing problems. Hidden dangers, including condensed water is easy to breed bacteria and infect patients, and condensed water blocks the breathing circuit tube, resulting in the gas delivered to the patient end not reaching the relative standard temperature and humidity, which is likely to cause respiratory discomfort of the patient, and may even cause breathing difficulties and endanger the life safety of the patient , for this reason, the existing technology maintains the temperature of the heated and humidified gas by setting a heating wire in the transmission tube, which can prevent condensation water and transmit the relatively standard temperature and humidity gas to the patient

[0003] At the same time, in order to accurately control the transmission of standard temperature and humidity gas to the patient, the existing respiratory humidification system is connected with an external probe to detect the gas characteristics such as temperature, humidity, temperature and humidity, pressure, etc. The probe at the gas port (humidification tank) and the probe at the gas outlet (patient), however, the external probe brings many disadvantages, such as easy to fall off if it is not installed correctly, the probe is easy to be damaged, infected, and increases the risk to the patient. risk

And additional line connections, resulting in bulky and inconvenient use of the breathing apparatus

[0004] At the same time, the gas characteristic information collected by the probe needs to be transmitted to the controller through an additional wire, which reduces the stability of the system

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