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Calibration method and device for flowmeter of anesthesia machine

A technology of flowmeter and anesthesia machine, applied in the field of anesthesia machine, can solve the problem of poor calibration accuracy of anesthesia machine flowmeter, and achieve the effect of improving the calibration accuracy

Active Publication Date: 2016-08-03
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a method and device for calibrating the flowmeter of anesthesia machine to solve the problem of poor calibration accuracy of the flowmeter of anesthesia machine

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  • Calibration method and device for flowmeter of anesthesia machine
  • Calibration method and device for flowmeter of anesthesia machine
  • Calibration method and device for flowmeter of anesthesia machine

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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 flow chart of the calibration method of the anesthesia machine flowmeter according to the first embodiment of the present invention, such as figure 1 As shown, the method includes the following steps S102 to S106:

[0026] Step S102: Acquiring a plurality of interpolation nodes, wherein the interpolation nodes are the nodes of the circuit pipeline pressure of the flowmeter of the anesthesia machine and the gas flow rate of the corresponding flowmeter.

[0027] This step is specifically as follows: obtaining n+1 interpolation nodes (x0, y0), (x1, y1), ..., (xn, yn), where x0, x1, ..., xn are the pressures of the anesthesia machine flowmeter circuit pipeline, y0, y1, .....

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Abstract

The invention discloses a method and device for calibrating a flowmeter of an anesthesia apparatus. The method for calibrating the flowmeter of the anesthesia apparatus comprises the following steps of obtaining a plurality of interpolation nodes, wherein the interpolation nodes comprise the node of the pressure of a return pipeline of the flowmeter of the anesthesia apparatus and the corresponding node of the gas flow quantity of the flowmeter; carrying out the spline interpolation between zones consisting of the interpolation nodes, so as to obtain a spline function of each zone; and according to the spline function of each zone, drawing a calibrating curve of the flowmeter of the anesthesia apparatus. The method and the device have the advantage that the accurate calibrating curve of the flowmeter can be obtained, so the calibrating accuracy of the flowmeter of the anesthesia apparatus is improved.

Description

technical field [0001] The invention relates to the field of anesthesia machines, in particular to a calibration method and device for flow meters of anesthesia machines. Background technique [0002] During the operation of the anesthesia machine, the flow meter is used not only to supply fresh gas to the circuit, to adjust the oxygen concentration of the inhaled gas, but also to bring the anesthetic gas in the evaporator into the circuit. In the actual working process of the anesthesia machine, the total flow of gas is controlled by the inhalation valve and the flow meter at the same time. Therefore, when controlling the gas flow of the inhalation valve, it is necessary to know the flow rate of the gas given by the flow meter. [0003] At present, the method of knowing the gas flow rate of the flowmeter is: calibrate the flowmeter to obtain the relationship curve between the gas flow rate of the flowmeter and the pipeline pressure of the flowmeter circuit; Pipeline pressu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F25/00A61M16/01
Inventor 黄发乾
Owner BEIJING AEONMED