Method for adjusting pressure of anesthesia machine and breathing machine through flow and pressure common control

A technology of common control and pressure regulation, applied in respirator and other directions, can solve problems such as excessive gear and affiliation, insufficient control value coverage, overshoot, etc.

Active Publication Date: 2012-04-04
航天长峰医疗科技(成都)有限公司
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that in the design process, the discourse gear and the membership relationship of the membership function in the fuzzy control rules have a relatively large impact on the control algorithm, and the gears and membership relationships are too dense. The calculation time of the control algorithm is too long, and expensive DSP is required. It can be realized quickly, if the gear posit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for adjusting pressure of anesthesia machine and breathing machine through flow and pressure common control
  • Method for adjusting pressure of anesthesia machine and breathing machine through flow and pressure common control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Such as figure 1 Shown, the control method of the present invention is as follows:

[0027] 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;

[0028] Adjust the PID control parameters corresponding to the N R and C values;

[0029] 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;

[0030] 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;

[0031] After the control algorithm is corrected, the pressure sensor and flow sensor in the anesthesia ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for adjusting pressure of an anesthesia machine and a breathing machine through flow and pressure common control, which is characterized by comprising the following steps of: calculating a pressure value under the current flow by using a formula P=F*R in a pressure control mode, wherein P is pressure; F is the current flow; and R is air resistance; estimating the pressure at a next moment under the current pressure value by using a Kalman estimation algorithm into which sub-items with control parameters influencing an overall estimation result are added; substituting the estimated pressure value into an error system to calculate a control error quantity, performing proportion integration differentiation (PID) control on the control error quantity, and converting into control pressure required at the next moment; converting the control pressure into standard control flow by using the formula P=F*R; and inputting the converted control flow into a flow PID ratio controller for flow feedback control.

Description

technical field [0001] The invention relates to a high-performance and high-precision pressure control ventilation mode 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. There are two known pressure control methods: [0003] The pressure PID control is used to directly control the pressure of the patient. 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 c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61M16/00A61M16/01
Inventor 刁俊
Owner 航天长峰医疗科技(成都)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap