Method for controlling ventilation by turbine capacity of respirator

Abstract

A ventilator turbine volume-controlled ventilation method that implements volume-controlled ventilation for a ventilator by means of turbine motor rotational speed control, inhalation phase control, and exhalation phase control. The method comprises the main steps of: the ventilator is started up, a control unit in the ventilator issues a rotation speed U control instruction to a turbine driver, the turbine driver drives a turbine motor, and then the control unit detects the breathing state of a patient, if the patient needs to inhale air, proceeds to an inhalation phase control, and, if the patient needs to exhale air, proceeds to an exhalation phase control, where the inhalation phase control is implemented by the control unit that outputs driving voltage V 1 to regulate the extent to which an inhalation valve is opened, and the exhalation phase control is implemented by the control unit that outputs driving voltage V 2 to regulate the extent to which an exhalation valve is opened. By combining control of some operating parameters of the ventilator with the rotational speed of the turbine motor, the method implements constant current control and real-time synchronous control of the turbine motor, thus allowing air supply to be provided to the ventilator by the turbine motor at places such as in the field where air supply cannot be provided.

Description

technical field [0001] The invention relates to the field of volume-controlled ventilation, and more specifically, relates to a method for ventilator turbine volume-controlled ventilation. Background technique [0002] Volume Controlled Ventilation (VCV) is a basic ventilation method commonly used on ventilators. The control process is roughly as follows: the positive inspiratory pressure is generated by the air pressure device, the gas is pressed into the patient's lungs, and the gas is exhaled by the contraction of the lungs. Concentration and other parameters to carry out respiratory ventilation, if the patient has spontaneous breathing, then detect the patient's spontaneous breathing ability, and breathe synchronously with the patient. [0003] Recently, in the process of volume control ventilation control, the air source pressure usually needs to be provided by an air compressor or other air source equipment. This method requires that the ventilator must be not far fro...

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Problems solved by technology

[0005] In order to overcome the existing volume control ventilation method, when the turbine is used in a ventilator, it is difficult to achieve constant flow control, real-time control, synchronous control and other defects, the technical problem to be solved by the present invention is to propose a volume control ventilation method for the ve

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