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Oxygen concentration monitoring and controlling method of breathing machine

An oxygen concentration and ventilator technology, applied in the field of ventilator, can solve the problems of slow response, life limit, low accuracy of oxygen concentration sensor, etc., and achieve the effect of fast response and safety guarantee.

Inactive Publication Date: 2014-07-09
BEIJING AEONMED
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  • Abstract
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Problems solved by technology

To solve the problems of low accuracy, slow response and limited life of the oxygen concentration sensor used in the prior art

Method used

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  • Oxygen concentration monitoring and controlling method of breathing machine
  • Oxygen concentration monitoring and controlling method of breathing machine

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below through specific embodiments.

[0030] figure 1 It is a flow chart of the first embodiment of the method for monitoring and controlling the oxygen concentration of the ventilator provided by the present invention. Such as figure 1 As shown, the oxygen concentration control and monitoring method of the ventilator comprises the following steps:

[0031] Step S00, enter the normal ventilation mode of the ventilator.

[0032] Step S10, the control unit reads the current oxygen concentration setting value of the ventilator.

[0033] Step S20, according to the current set value of oxygen concentration, the control unit respectively controls the parameters of the air control valve and the oxygen control valve to ventilate the patient. Further, the control unit controls the opening degrees of the air control valve and the oxygen control valve respectively.

[0034] Step S30, the control unit c...

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Abstract

The invention discloses an oxygen concentration monitoring and controlling method of a breathing machine. The method comprises the following steps of S00, the breathing machine enters a normal ventilation mode; S10, a control unit reads the current oxygen concentration set value of the breathing machine; S20, according to the current oxygen concentration set value, the control unit separately controls the parameters of an air control valve and an oxygen control valve inside the breathing machine to ventilate a patient; S30, the control unit controls a paramagnetic oxygen sensor to read the current oxygen concentration monitored value of the breathing machine in real time; S40, according to the current oxygen concentration monitored value, the control units adjust the parameters of the air control valve and the oxygen control valve in real time to keep the current oxygen concentration monitored value identical to the current oxygen concentration set value. The oxygen concentration monitoring and controlling method of the breathing machine can improve the oxygen concentration monitoring precision of the breathing machine and shorten the oxygen concentration monitoring time. Besides, the paramagnetic oxygen sensor works under purely physical measurement principles and has no consumption and a long service life.

Description

technical field [0001] The invention relates to the field of ventilators, and more specifically, to a method for monitoring and controlling the oxygen concentration of a ventilator. Background technique [0002] As a means of life support, the ventilator can generally set and monitor the oxygen concentration, but the conventional oxygen concentration sensor has a slow response speed, generally greater than 10s, and a short service life. Generally, it needs to be replaced once a year, and it is not very accurate. , It is not conducive to the doctor's oxygenation therapy for the patient. Moreover, once the air-oxygen mixer breaks down, causing the oxygen concentration to go out of control, especially when the oxygen concentration is too high, even close to pure oxygen, the patient will cause oxygen poisoning, which can be life-threatening in severe cases. [0003] However, conventional oxygen concentration sensors are measured through chemical reactions, and are consumables t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/10G01N27/74
Inventor 金文贤
Owner BEIJING AEONMED
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