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Adaptive pressure and oxygen concentration control method

A technology of self-adaptive control and control method, applied in non-electrical variable control, control/regulation system, simultaneous control of multiple variables, etc., can solve problems such as unable to control pressure and oxygen concentration at the same time

Inactive Publication Date: 2019-04-26
SHENZHEN COMEN MEDICAL INSTR
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide an adaptive pressure and oxygen concentration control method for the problem that the existing methods cannot control the pressure and oxygen concentration at the same time

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  • Adaptive pressure and oxygen concentration control method

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Embodiment Construction

[0058] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the spec...

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Abstract

The application relates to an adaptive pressure and oxygen concentration control method. The adaptive pressure and oxygen concentration control method comprises the steps of S10, carrying out online identification on respiratory process dynamic parameters, and respectively calculating a linearized gas path damping coefficient Rrs and a linearized dynamic smoothing coefficient Crs; S20, estimatingadaptive parameters theta according to the linearized gas path damping coefficient Rrs and the linearized dynamic smoothing coefficient Crs; S30, calculating the air-oxygen mixed flow control signal ue in combination with the adaptive parameters theta to implement pressure adaptive control; and S40, calculating an air flow control signal uea and an oxygen flow control signal ueo in combination with the adaptive parameters theta to achieve adaptive control over oxygen concentration. The adaptive pressure and oxygen concentration control method synchronizes the pressure maintenance process withthe oxygen concentration maintenance process. The adaptive pressure and oxygen concentration control method is simple and easy to implement, and can ensure the simultaneous adjustment of the pressureand the oxygen concentration without increasing the complexity of a ventilator, thereby ensuring the clinical use effect of the ventilator.

Description

technical field [0001] The present application relates to the technical field of medical equipment control, in particular to an adaptive pressure and oxygen concentration control method. Background technique [0002] For ventilators, the accuracy and stability of oxygen concentration and pressure maintenance are the core and most basic requirements. Oxygen concentration and pressure maintenance have different goals in the two processes, and both need to control the flow of air and oxygen. Therefore, if the controller is not stable enough or the performance of the device changes after long-term use, it will affect the clinical use of the ventilator. [0003] At present, the pressure and oxygen concentration maintenance of ventilators are usually designed separately. The pressure during the process of maintaining the oxygen concentration may not meet the usage requirements. Although the relevant design can maintain the pressure of the breathing process, the synchronous adju...

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Application Information

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IPC IPC(8): A61M16/00A61M16/10
CPCA61M16/0003A61M16/1005A61M2016/1025A61M16/125A61M16/204G05D27/00A61M2016/0027A61M2016/0039A61M2205/3334A61M2205/3379A61M2205/50
Inventor 敖伟李秋华罗小锁
Owner SHENZHEN COMEN MEDICAL INSTR
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