Humidification machine of breathing apparatus and control method of humidification machine

Abstract

The invention discloses a humidification machine of a breathing apparatus and a control method of the humidification machine. The humidification machine comprises a humidification tank, a pipe clamping valve, a silicone pipe, a buzzer, a circuit board, an end cover and a water level detection device, wherein a water filling pipe is arranged at one end of the humidification tank; the pipe clampingvalve is arranged at one end adjacent to the water filling pipe, of the humidification tank; the silicone pipe clamped by the pipe clamping valve is connected with the water filling pipe; the end cover is arranged at the other end of the humidification tank; the buzzer and the circuit board are arranged on the inner side of the end cover. The control method of the humidification machine comprisesthe following steps that water level is detected by the water level detection device; when a low water level is detected, the circuit board controls the pipe clamping valve to communicate with the silicone pipe for water injection; and when a high water level is detected, the circuit board controls the pipe clamping valve to pinch off the silicone pipe to stop water injection. The humidification machine provided by the invention can automatically control the humidification machine to add water, so that the situations that the added water of the humidification machine is too much or insufficient, and the treatment of the patient is influenced are avoided.

Description

technical field [0001] The invention relates to the technical field of ventilators, in particular to a humidifier of a ventilator and a control method thereof. Background technique [0002] Ventilator is a vital medical equipment that can prevent and treat respiratory failure, save and prolong the life of patients. The humidifier is an important part of the ventilator. When critically ill patients use the ventilator to assist ventilation, the gas sent by the ventilator is dry and cold. The dry and cold gas enters the trachea and damages lung function, resulting in a reduction in the number of cilia, dysfunction, and damage to the lungs. Alveolar surfactant, sputum viscous block the airway, increase the incidence of lung infection, etc. Therefore, it is necessary to heat and humidify the inhaled air through a humidifier. [0003] The humidifier needs to add water continuously with the consumption of sterilized water for injection during operation. The humidifier water adding...

AI Technical Summary

Problems solved by technology

Disconnecting the ventilator tube to add water and using a syringe to add water both need to disconnect the ventilator tube, which affects the patient's treatment, and at the same time increases the chance of ventilator tube infection due to repeated disconnection of the circuit

When using the infusion set to add water, manual care is required. However, in clinical practice, sometimes the doctors and nurses are too busy to add water, resulting in a "dry burn". As a result, the gas inhaled by the patient is not only not humidified, but also easily causes damage to the humidification tank. After the medical staff opened the infusion set to add water to the humidification tank, they were disturbed by other things. They did not pay attention to the amount of water added or forgot, which often caused too much water to be added, causing the water in the humidification tank to overflow into the ventilator circuit, causing the ventilator circuit to be damaged. Accumulated water or even blockage may cause the ventilator to fail to supply air in severe cases, and if it is found that the treatment is not timely, it may even cause the patient to "suffocate", which will bring serious consequences to the patient

[0004] In order to prevent the humidifier from adding too much water, the existing humidifier is equipped with a float mechanism to block the water injection pipe when the water is too much. The float mechanism cannot work when the humidifier is short of water, and the infusion bottle is generally suspended High, there is a certain water pressure, and the way of blocking the water injection pipe by the float mechanism is used to prevent water injection, and the water addition cannot be completely blocked

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