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Device and method for detecting consumption level of oxygen concentration sensor

An oxygen concentration sensor, temperature sensor technology, applied in the field of instrumentation, gas concentration sensor, can solve the problem that the use efficiency cannot be estimated reliably

Active Publication Date: 2013-10-23
BEIJING AEONMED
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for detecting the life of an oxygen concentration sensor, so as to overcome the defect that the existing sensors cannot reliably estimate the service efficiency

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  • Device and method for detecting consumption level of oxygen concentration sensor
  • Device and method for detecting consumption level of oxygen concentration sensor
  • Device and method for detecting consumption level of oxygen concentration sensor

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specific Embodiment approach

[0029] Based on the above principles and ideas, the present invention proposes a specific implementation of the method for detecting the consumption degree of the oxygen concentration sensor, which includes the following steps: providing a calculation formula for the consumption percentage of the oxygen concentration sensor, which is the operating temperature T of the sensor, Working pressure P and oxygen concentration FiO 2 The function of; Obtain oxygen concentration parameter FiO from described oxygen concentration sensor 2 Obtain the temperature parameter T from a temperature sensor; Obtain the gas total pressure P passing through the oxygen concentration sensor from a pressure sensor; Convert the parameters obtained above from analog signals to digital signals; Send the digital signals to the computing center, obtaining the percentage value; and displaying the percentage value through a display terminal or simply providing an alarm associated with a predetermined value. ...

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Abstract

The invention provides a method for detecting the service life of an oxygen concentration sensor and a device using the method in order to overcome the defect that the traditional sensor can not estimate the use efficiency reliably. The method comprises the following steps of: acquiring oxygen concentration from the oxygen concentration sensor; acquiring the working temperature of the oxygen concentration sensor from one temperature sensor; acquiring the total gas pressure of the oxygen concentration sensor from a pressure sensor; and determining the consumption level of the oxygen concentration sensor according to the oxygen concentration, the temperature and the total gas pressure. By using the method and device provided by the invention, a user can know the consumption situation of the oxygen concentration sensor in real time, which is beneficial to the accurate and reliable concentration detection of oxygen conveyed by a breathing machine.

Description

technical field [0001] The invention relates to the field of instruments and meters, more specifically to the field of gas concentration sensors. Background technique [0002] At present, in medical equipment using oxygen concentration sensors such as ventilators and anesthesia machines, there is no quantitative method for monitoring the service life of oxygen concentration sensors. Basically, it is roughly estimated whether the oxygen concentration sensor should be replaced according to the length of use and the accuracy of the sensor. Specifically, the user finds the fault of the oxygen sensor by comparing the measured oxygen concentration value with the set oxygen concentration value, and judges whether the service life of the sensor is reached by observing whether the measured value of the sensor is accurate after calibration. This method is greatly affected by the user's maintenance awareness and subjective judgment, and has great blindness. If the oxygen concentratio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/413A61M16/00A61M16/01
Inventor 李浩敏李敬辉
Owner BEIJING AEONMED
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