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Mainstream type human end-expiratory carbon dioxide concentration data collection and processing method

A data acquisition and processing, carbon dioxide technology, applied in the field of biomedical engineering, can solve the problems of measurement data jumping and monitoring platform instability.

Inactive Publication Date: 2017-01-18
TIANJIN UNIV
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Problems solved by technology

[0007] The invention can overcome the phenomenon that the current mainstream carbon dioxide monitoring technology is vulnerable to the instability of the monitoring platform and the surrounding electromagnetic interference, which makes the measurement data jump

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  • Mainstream type human end-expiratory carbon dioxide concentration data collection and processing method
  • Mainstream type human end-expiratory carbon dioxide concentration data collection and processing method
  • Mainstream type human end-expiratory carbon dioxide concentration data collection and processing method

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Embodiment Construction

[0009] The carbon dioxide concentration monitoring method of the present invention is proposed for mainstream gas monitoring, and the composition of the monitoring system applicable to the present invention is given below.

[0010] The mainstream breathing carbon dioxide concentration monitoring system consists of a host computer and a monitoring module. The upper computer is a general-purpose computer or monitor. Monitoring modules such as figure 1 As shown, 1 represents a light source module, 2 represents a sensor module, 3 represents a transparent glass sheet, and 4 represents a gas channel. Wherein 3 and 4 constitute pipeline adapters, which can be directly installed on the human exhaled gas channel. The light source modules are separated on both sides of the pipe adapter. The sensor module has two channels, and a filter is installed at each channel port, where CO 2 The filter of the channel is 4.26μm, and the filter of the reference channel is 3.95μm. The operation pr...

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Abstract

The invention relates to a mainstream type human end-expiratory carbon dioxide concentration data collection and processing method. According to the method, the conventional peak voltage is set to be V<H>; the valley voltage is set to be V<L>; for sampling data of a measuring channel in a period of time, when the peak voltage is in a threshold value range shown as the accompanying drawing, and the valley voltage is in a threshold value range shown as the accompanying drawing, sampling data is subjected to processing such as sequencing to select an extreme value point; the peak-peak values after the threshold value processing are arranged; the maximum value in the rest peak-peak values is used as a peak value sampling point; identically, the minimum value in the rest peak-valley values is taken to be used as a valley value sampling point. The method provided b the invention can overcome the defect that the current mainstream type carbon dioxide monitoring technology can be easily influenced by monitoring platform instability and peripheral electromagnetic interference, so that measuring data generates a jumping phenomenon.

Description

technical field [0001] The invention belongs to the field of biomedical engineering and relates to a method for collecting data of human end-breathing carbon dioxide concentration. Background technique [0002] In clinical and other medical monitoring, the real-time monitoring of carbon dioxide concentration in human breathing has been paid more and more attention, especially the end-tidal carbon dioxide partial pressure has become the six basic vital signs. At present, the measurement of end-tidal carbon dioxide concentration monitoring system based on the principle of non-spectral infrared can be mainly divided into two types: mainstream monitoring of direct measurement and side-flow monitoring of measurement by extracting respiratory gas. [0003] The side-flow monitoring can dehumidify the extracted gas and stabilize the pressure to make the measurement accuracy higher, but due to the delay of the air extraction, the displayed waveform is obviously distorted and the equi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08A61B5/00
CPCA61B5/08A61B5/0086A61B5/6852A61B5/7235
Inventor 杨嘉琛周建雄范大勇
Owner TIANJIN UNIV
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