Anesthesia machine and breathing machine pressure control and adjustment method suitable for different R values and C values

A technology of pressure control and adjustment method, applied in the direction of electric fluid pressure control, respirator, etc., can solve the problems of insufficient ventilation, high hardware cost, patient harm, etc., so as to reduce the phenomenon of overshoot and insufficient ventilation, The effect of low hardware cost, high performance pressure ventilation control

Active Publication Date: 2012-04-04
航天长峰医疗科技(成都)有限公司
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Problems solved by technology

The disadvantage is that for patients with different lesions, their own R and C values ​​are different. Using the traditional pressure control method to control the entire system based solely on the monitored pressure cannot well adapt to pressure changes under various R and C conditions.

Method used

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  • Anesthesia machine and breathing machine pressure control and adjustment method suitable for different R values and C values
  • Anesthesia machine and breathing machine pressure control and adjustment method suitable for different R values and C values

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Embodiment Construction

[0018] Such as figure 1 Shown, the control method of the present invention is as follows:

[0019] Within the value range of R=1~100cmH2O / L / s, C=1~100mL / cmH2O, according to the distribution data of R and C values ​​of patients collected and collected in large quantities, select N R and C values ​​with the highest occurrence probability as the positioning points, N greater than 10;

[0020] Adjust the PID control parameters corresponding to the N R and C values;

[0021] According to the characteristics of the PID control parameters corresponding to the N R and C values, a corresponding fuzzy control algorithm is worked out;

[0022] According to the formulated fuzzy control algorithm, calculate the PID control parameters corresponding to other R and C within the value range of R and C, and modify the fuzzy control algorithm to meet the needs of different R and C values;

[0023] After the control algorithm is corrected, the pressure sensor in the anesthesia machine and vent...

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Abstract

The invention discloses an anesthesia machine and breathing machine pressure control and adjustment method suitable for different R values and C values, which comprises the following steps of: taking a part of R values and C values as positioning points; performing proportion integration differentiation (PID) control parameter adjustment on the R value positioning points and the C value positioning points; in terms of the congruent relationships of the R values, the C values and corresponding PID parameters, establishing a membership function according to a fuzzy mathematical theory and grading the discourse domains of the membership function; setting a fuzzy rule and a decision method according to a grading condition, and writing a corresponding fuzzy control algorithm according to the set fuzzy rule and decision method; automatically calculating the PID parameters corresponding to the R values and the C values which are not set as the positioning points in the value ranges of R and C according to the fuzzy control algorithm; and performing pressure feedback control on an overall pressure control system by using the calculated PID parameters.

Description

technical field [0001] The invention provides a high-performance, high-precision pressure control ventilation method for realizing anesthesia machines and ventilators, and belongs to the technical field of medical equipment manufacturing. Background technique [0002] In the control of anesthesia machines and ventilators, pressure-controlled ventilation is required for some special patients. The traditional method uses pressure PID control to directly control the pressure of patients. The advantage of this method is that the algorithm is simple to implement, and the PID pressure control realized by using a high-performance processor can be used for most patients with special diseases. The disadvantage is that for patients with different lesions, their own R and C values ​​are different. Using the traditional pressure control method to control the entire system based solely on the monitored pressure cannot well adapt to pressure changes under various R and C conditions. The ...

Claims

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Application Information

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IPC IPC(8): A61M16/00A61M16/01G05D16/20
Inventor 刁俊
Owner 航天长峰医疗科技(成都)有限公司
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