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反射式血氧模擬儀設(shè)計

Design of reflective blood oxygen simulator

作者: 鄭利金  劉小波  李文  韓曉鵬 
單位:北京超思電子技術(shù)有限責(zé)任公司(北京 100041) 北京市醫(yī)療器械檢驗所(北京 101111) 醫(yī)療器械檢驗與安全性評價北京市重點實驗室(北京 101111)
關(guān)鍵詞: 反射式;血氧飽和度;模擬儀;脈搏波;光電傳感器 
分類號:R318.04
出版年·卷·期(頁碼):2020·39·3(296-302)
摘要:

目的 研發(fā)基于光電傳感器的反射式血氧模擬儀,以滿足反射式血氧設(shè)備的評估和測試要求。方法 首先根據(jù)血氧設(shè)備的測量原理,研制反射式血氧模擬儀。該設(shè)備通過采集反射式血氧設(shè)備的紅光、紅外信號光強和頻率,產(chǎn)生不同強度的波形以模擬血氧值,實現(xiàn)測試反射式血氧設(shè)備的功能。然后選擇兩款反射式血氧測量設(shè)備用于反射式模擬儀測試,以檢測反射式血氧模擬儀的輸出范圍和可靠性。結(jié)果 兩款反射式血氧測量設(shè)備可識別模擬儀輸出的70~100之間的血氧信號,并能顯示出血氧值;兩款設(shè)備顯示的波形與反射式模擬儀輸出的脈搏波基本一致。結(jié)論 在工程實踐中,反射式血氧模擬儀能夠模擬人體的血氧飽和度,在測試反射式血氧設(shè)備方面是可靠的,可滿足工程實踐要求。

Objective To developed a reflective blood oxygen simulator based on photoelectric sensor for testing and evaluating reflective blood oxygen equipment. Methods Firstly, according to the measurement principle of the blood oxygen equipment, a reflective blood oxygen simulator is developed. The reflection blood oxygen simulator collects the red light and infrared signal light intensity and frequency of the reflection blood oxygen equipment to generate waveforms of different intensities, and simulate different blood oxygen values to test the function of the reflective blood oxygen equipment. Then, two  reflective blood oxygen equipments are used for testing the output range and reliability of the reflection blood oxygen simulator. Result The two reflective blood oxygen equipments can identify the blood oxygen signal from the reflection blood oxygen simulator and display the blood oxygen values. The waveforms displayed on the two reflective blood oxygen equipments are basically the same as the output pulse wave from the reflection blood oxygen simulator .Conclusions In the engineering practice, the reflective blood oxygen simulator can simulate human body blood oxygen saturation, and is reliable on testing the reflective blood oxygen equipment. It meets the requirements of engineering practice.

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