Method and device for adjusting withdrawal point of ventilator and non-invasive ventilator

Abstract

The embodiment of the invention discloses a method for adjusting the replacing point of a breathing machine. The venting amount of a user is monitored in real time, so that the demarcation point of expiration and inspiration of the user is determined; the replacing point of the breaching machine is adjusted according to the relation between the time corresponding to the demarcation point and breathing machine replacing time. When the time corresponding to the demarcation point is larger than the replacing point time, it indicates that replacement is too fast, the specific value of flow corresponding to the replacing time and inspiration peak flow is reduced, otherwise, the specific value is increased in a certain proportion. The replacing point of the breathing machine is adjusted in time, it is ensured that the breathing action of the user is consistent with replacement of the breathing machine to meet the breathing needs of the user, the use experience of the user is improved, the comfort of a respiratory disease patient can be increased, and the treatment quality of respiratory diseases can be improved. In addition, the embodiment of the invention provides a corresponding implementation device and the noninvasive breathing machine. The method is more practical, and the device and the noninvasive breathing machine have corresponding advantages.

Description

technical field The embodiments of the present invention relate to the technical field of ventilator preparation, in particular to a method and device for adjusting a withdrawal point of a ventilator, and a non-invasive ventilator. Background technique Ventilator is a device that can replace, control or change people's normal physiological breathing, increase lung ventilation, improve respiratory function, reduce breathing work consumption, and save heart reserve capacity. The ventilator needs to inflate the lungs, convert from inhalation to exhalation, discharge alveolar gas, and convert from exhalation to inhalation in sequence, so it needs to have the power to deliver gas to replace the work of human respiratory muscles; it can produce a certain amount of breathing Rhythm, including respiratory rate and breath-to-breath ratio, to replace the function of human respiratory central nervous system to control respiratory rhythm; it can provide appropriate tidal volume or minut...

AI Technical Summary

Problems solved by technology

However, due to this fixed replacement, the replacement will be too slow, so that when the user needs to exhale, the ventilator still provides a higher pressure, causing the user to have difficulty in exhaling

Figure 2 The ventilator is replaced too quickly, and the pressure has dropped before the user starts to exhale. Since the user does not inhale enough air volume, he will continue to inhale hard, causing the flow rate to rise again, causing the user to inhale more slowly. difficulty

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