Differential pressure trigger woundless positive pressure respirator

Abstract

The invention is a pressure difference triggering non-invasive positive pressure ventilator. The pressure change in the pipe of the ventilator can be measured by the pressure difference sensing for measuring the flow change of the patient. The invention can directly monitor the flow variation of the airway of the patient, which is more sensitive than the prior pressure and flow triggering ventilator, and improves the synchronization between people and machine. The invention used the pressure difference sensor instead of the flow sensor, which reduces the production and maintenance costs of the ventilator.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a non-invasive positive pressure ventilator triggered by differential pressure. Background technique [0002] Now, ventilators are often used in medical rescue and home rehabilitation. Ventilators can be divided into two types: invasive and non-invasive. Invasive ventilators are mechanical ventilation through tracheotomy or tube insertion into the trachea. During the treatment, a professional doctor needs to cut the patient's trachea, or directly insert the tube of an invasive ventilator. Invasive ventilators are generally used in emergency rescue, which can cause damage to the patient's airway and easily lead to complications such as lung infection. It is clearly not suitable for ordinary first aid needs in the home. [0003] The non-invasive ventilator adopts the method of non-invasive ventilation, which refers to the mechanical ventilation without tracheal intubation...

AI Technical Summary

Problems solved by technology

The delay is related to the length of the ventilator pipeline, which cannot quickly and accurately reflect the patient's breathing state

At the same time, the cost of the flow sensor is high, and the requirements for the production and maintenance of the ventilator are also high

[0010] Therefore, it is necessary to propose a new technical solution that can accurately reflect the patient's breathing state economically, conveniently and quickly, and improve the suitability of the non-invasive positive pressure ventilator without causing economic burden and inconvenience to the user.

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