激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2014年
1期
50-55
,共6页
光电脉搏血氧仪%STM32%血氧饱和度%无线传输
光電脈搏血氧儀%STM32%血氧飽和度%無線傳輸
광전맥박혈양의%STM32%혈양포화도%무선전수
Photoelectric pulse oximetry%STM32%oxygen saturation%wireless transmission
血氧饱和度作为供氧状态的一个重要指标，是医护人员对疾病进行预防、诊治的重要依据之一。针对当前脉搏血氧仪功耗大、稳定性差、成本与仪器精度不可兼得等缺陷，设计中给出了一种性价比高、低功耗、可进行无线传输的光电脉搏血氧仪设计方案。系统采用指夹式光电血氧探头对血氧信号进行采集，以S TM32芯片为控制核心，对采集到的信号进行分析、处理与结果显示，实现了对血氧饱和度便携、实时、连续的检测。最终设计通过使用Fluke公司生产的Index2型血氧模拟仪进行多次测试，结果表明当血氧饱和度处于60％～80％时精度为2％，80％～99％时精度为1％，脉率检测误差为±1 bpm，达到了医疗仪器的标准要求，使得本设计具有较好的使用价值。
血氧飽和度作為供氧狀態的一箇重要指標，是醫護人員對疾病進行預防、診治的重要依據之一。針對噹前脈搏血氧儀功耗大、穩定性差、成本與儀器精度不可兼得等缺陷，設計中給齣瞭一種性價比高、低功耗、可進行無線傳輸的光電脈搏血氧儀設計方案。繫統採用指夾式光電血氧探頭對血氧信號進行採集，以S TM32芯片為控製覈心，對採集到的信號進行分析、處理與結果顯示，實現瞭對血氧飽和度便攜、實時、連續的檢測。最終設計通過使用Fluke公司生產的Index2型血氧模擬儀進行多次測試，結果錶明噹血氧飽和度處于60％～80％時精度為2％，80％～99％時精度為1％，脈率檢測誤差為±1 bpm，達到瞭醫療儀器的標準要求，使得本設計具有較好的使用價值。
혈양포화도작위공양상태적일개중요지표，시의호인원대질병진행예방、진치적중요의거지일。침대당전맥박혈양의공모대、은정성차、성본여의기정도불가겸득등결함，설계중급출료일충성개비고、저공모、가진행무선전수적광전맥박혈양의설계방안。계통채용지협식광전혈양탐두대혈양신호진행채집，이S TM32심편위공제핵심，대채집도적신호진행분석、처리여결과현시，실현료대혈양포화도편휴、실시、련속적검측。최종설계통과사용Fluke공사생산적Index2형혈양모의의진행다차측시，결과표명당혈양포화도처우60％～80％시정도위2％，80％～99％시정도위1％，맥솔검측오차위±1 bpm，체도료의료의기적표준요구，사득본설계구유교호적사용개치。
Oxygen saturation as an important indicator of the state of oxygen is a significant basis to the health care workers on disease prevention,diagnosis and treatment.Due to the defects of the current pulse oximeter such as power consumption,poor stability,the balance between price and instrument accuracy,a cost-effective,low-power and wire-less transmission photoelectric pulse oximeter is designed.The system used oximeter finger clip to acquire the oxygen signal and took the STM32 chip as its CPU,then the collected signal is analyzed,processed and displayed on the screen,the detection of blood oxygen saturation portable real-time continuous is realized.After repeating the experi-ment under different conditions by Fluck Index2 oximeter simulator,the extensive experimental results demonstrate that the accuracy is 2%when oxygen saturation is between 60%to 80%and the accuracy is 1%when oxygen satura-tion is between 80%to 99%,the pulse rate error is less than 1 bpm.The results show that the design has reached the standard requirements for medical equipment,which makes the design has good value in use.
