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医用CO₂体积分数检测装置的研制

Development of CO₂ volume fraction measuring device for medical use

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【Author】 LI Ke~1, CHEN Rong-song~1, YE Ji-lun~2, ZHOU Hui-ling~3,LI Xin-sheng~2(1.Sch of Life Sci and Techn,Xi’an Jiaotong University,Xi’an 710049,China;2.Shenzhen Mindray Biomedical Elctronics Co.,Ltd,Shenzhen 518054,China;3.Sch of Elct Engin,Xidian University,Xi’an 710071,China)

【机构】西安交通大学生命科学与技术学院；深圳迈瑞生物医疗电子股份有限公司；西安电子科技大学电子工程学院；深圳迈瑞生物医疗电子股份有限公司陕西西安710049；陕西西安710049；广东深圳518054；陕西西安710071；广东深圳518054；

【摘要】危重病人的监护需要监测病人通气功能和肺血流等情况,设计了一种装置。采用了非扩散红外线NDIR(nondispersiveinfrared)技术获取信息,旁气流式测量,再用微控制器对信息进行采集、处理,送PC机显示,可实现对病人呼吸中的CO2体积分数的无创、实时和连续监测。更多还原

【Abstract】 Breath function and blood stream in lung are necessary to be monitored for nursing dangerous patients,so a device is designed.Non-dispersive infrared absorption CO₂ gas sensor was used to obtain signal.Side stream measurement was used in the air way.Data collection and procession was completed by the microprocessor and displayed by a PC.The CO₂ gas volume fraction in patient’s breath can be monitored,noninvasively,real time and continuously.更多还原