Full-automatic noninvasive expectoration machine

Abstract

The invention provides a full-automatic noninvasive expectoration machine. A pressure sensor (211) used for monitoring pressure and a pressure difference transducer (210) used for monitoring flow are arranged on an expectoration pipeline. According to data acquired by the pressure sensor (211) and the pressure difference transducer (210), the following operations are carried out: when the expectoration starting condition is met, expectoration is started, and negative pressure is outputted to a patient (101) through the expectoration pipeline; and when the expectoration stopping condition is met, expectoration is stopped, and negative pressure is stopped to be outputted to the patient (101) through the expectoration pipeline. The full-automatic noninvasive expectoration machine can detect the breathing process automatically and trigger expectoration automatically.

Description

technical field [0001] The invention belongs to the field of medical devices for assisting expectoration, in particular to a fully automatic non-invasive expectoration machine capable of automatically detecting breathing progress and automatically triggering expectoration. Background technique [0002] Coughing is a protective respiratory reflex action for the human body to remove secretions or foreign objects in the respiratory tract. Combined with the continuous movement of cilia, it can continuously expel secretions from the body, which is of great significance for maintaining normal physiological activities of the human respiratory system and circulatory system. However, the body's normal expectoration function may be weakened or absent due to certain diseases or other reasons, such as emphysema, muscular dystrophy, poliomyelitis, chronic bronchitis, cystic fibrosis, amyotrophic lateral Sclerosis, motor neuron disease (MND), neonatal and elderly pneumonia, ventilator dep...

AI Technical Summary

Problems solved by technology

This will bring about a very serious problem: the time set for coughing up sputum is too long or too short

If the time of expectoration is set too long, it may cause overpumping, the negative pressure acts on the lungs, and the alveoli collapse, resulting in atelectasis

If the time for expectoration is too short, it can be imagined that when the expectoration stops, there is still a lot of air in the lungs, which actually means that the expectoration has not achieved the best effect.

[0005] 2. The patient is uncomfortable during deep inhalation with positive pressure, and the experience effect is poor

[0006] CoughAssist and other phlegm machines, as mentioned above, before the patient uses the sputum machine to cough up sputum, the operator must set the duration, pressure, and flow of deep inhalation each time, which is obviously different from the patient's normal breathing in most cases Unable to keep pace, when taking a deep breath, the patient has to adapt to the beat of the machine, so it feels particularly uncomfortable

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