Method and device for controlling oxygen concentration of ventilator

A control method and a technology of a control device, which are applied in the field of ventilators, can solve problems such as poor oxygen concentration control effects, and achieve the effect of improving control accuracy

Active Publication Date: 2016-11-23
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method and device for controlling the oxygen concentration of a ventilator, so as to solve the problem that the oxygen concentration control effect of the ventilator is poor in pressure mode

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  • Method and device for controlling oxygen concentration of ventilator
  • Method and device for controlling oxygen concentration of ventilator
  • Method and device for controlling oxygen concentration of ventilator

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] figure 1 It is a flowchart of a method for controlling the oxygen concentration of a ventilator according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps S102 to S108:

[0026] Step S102: Obtain the target oxygen concentration of the ventilator.

[0027] Preferably, after acquiring the target oxygen concentration of the ventilator, the method further includes: judging whether the target oxygen concentration of the ventilator is within the preset oxygen concentration range; and when the target oxygen concentration is not within the preset oxygen concentration range, reacquiring The target oxygen concentration for the ventila...

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Abstract

The invention discloses a control method and a control device for breathing machine oxygen concentration. The control method for the breathing machine oxygen concentration comprises the steps of obtaining target oxygen concentration of a breathing machine, controlling a proportional valve of the breathing machine to be at a first opening degree according to the target oxygen concentration so as to enable the breathing machine to output gas, detecting the oxygen concentration of the gas output by the breathing machine, and controlling the proportional valve to be at a second opening degree according to the oxygen concentration of the gas output by the breathing machine and the target oxygen concentration so as to enable the oxygen concentration of the gas output by the breathing machine to accord with the target oxygen concentration. The control method and the control device for the breathing machine oxygen concentration are capable of improving control effect of the oxygen concentration of the breathing machine.

Description

technical field [0001] The invention relates to the field of ventilators, in particular to a method and device for controlling the oxygen concentration of a ventilator. Background technique [0002] The ventilator needs to provide an air with adjustable oxygen concentration, so the oxygen mixture needs to be controlled. At present, the pneumatic electronically controlled ventilator that uses dual proportional valves to achieve oxygen concentration control controls the oxygen concentration of the output gas by controlling the opening of the two proportional valves in real time. [0003] When the ventilator works in pressure mode, in order to ensure pressure balance, the gas flow rate is changed in real time. With the existing control method, ventilation is performed according to the set oxygen concentration, but the actual oxygen concentration often deviates from the target oxygen concentration, and errors occur, resulting in poor control effect. In addition, the minimum fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M16/12
Inventor 金文贤
Owner BEIJING AEONMED
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