Method for estimating dynamic positive end-expiratory pressure in mechanical ventilation

Abstract

The invention provides a method for estimating dynamic positive end-expiratory pressure in mechanical ventilation, and mainly relates to the field of research on dynamic positive end-expiratory pressure in mechanical ventilation. According to the invention, an expiration curve is used as a research object, and the positive pressure (positive end-expiratory pressure 1, PEEPi1) in the pulmonary alveoli at the moment before the inflection point and the assumed positive pressure (positive end-expiratory pressure 2, PEEPi2) in the pulmonary alveoli when the actual expiratory flow is 0 and if the inspiration force does not exist according to the difference between the areas under an actual expiratory curve and an imaginary tracing curve and the compliance of a respiratory system. The method hasthe beneficial effect that when a patient uses a breathing machine, reference for setting parameters of the breathing machine can be provided for medical staff, so that the patient uses the breathingmachine to achieve the best breathing effect, and the survival probability of the patient is further improved.

Description

technical field [0001] The invention mainly relates to the research field of dynamic positive end-expiratory pressure in mechanical ventilation, in particular to an estimation method for dynamic positive end-expiratory pressure in mechanical ventilation. Background technique [0002] As an effective means of artificially replacing the spontaneous ventilation function, the ventilator has been widely used in respiratory failure caused by various reasons, anesthesia breathing management during major surgery, respiratory support treatment and emergency resuscitation, and occupies an important position in the field of modern medicine. very important position. Ventilator is a vital medical equipment that can prevent and treat respiratory failure, reduce complications, save and prolong the life of patients. [0003] Among them, in the mechanical ventilation of ventilators, positive end-expiratory pressure is an indicator related to the breathing quality of patients. However, when ...

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Problems solved by technology

[0003] Among them, in the mechanical ventilation of ventilators, positive end-expiratory pressure is an indicator related to the breathing quality of patients. However, when debugging ventilators clinically, the parameters can only be set according to the doctor's experience or the patient's response. Without a theoretical basis, it is impossible to guarantee that the patient will achieve the best ventilation effect with the assistance of the ventilator

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