摘要
目前手术中使用的射频闭合装置存在反馈控制方式单一,响应滞后的缺点,为此设计一套基于Labview的生物组织水分含量变化检测系统;该系统利用发光二极管产生的近红外光照射生物组织,一部分光被组织中的水分吸收,透射光用光电检测电路采集并转化为电压信号,经过调理处理输送到DAQ数据采集卡,利用Labview编程检测、显示并储存信号,将水分含量的差异通过检测电压表征;实验结果表明此系统操作方便,工作稳定,能够准确迅速的检测透射的光通量,并反映闭合过程中的组织水分含量变化,可以作为研制新型射频能量闭合装置中反馈控制系统的基础。
Radio frequency fusion equipment used in surgery has drawbacks such as single method of feedback control and response lag currently, for this, the research develop a system based on Labview to measure water content of biological tissue. The biological tissue is ex- posed to near infrared light which is induced by near infrared light emitting diode, a part of the light has been absorbed by water of tissue and the transmission light is acquired and transformed to voltage signal by photoelectric detector filtering circuit. The signal is transmitted to data acquisition card after be processed, and be measured, displayed and stored by Labview program which shows the difference of water content. The result shows the system which is easy for operation and working stably is able to measure water content accurately. It is a foundation to develop a new feed--back controlled system for radio--frequency tissue fusion device.
出处
《计算机测量与控制》
北大核心
2013年第7期1783-1785,1788,共4页
Computer Measurement &Control
基金
上海市科委资助项目(10441900900)
上海市教委科研创新项目(12YZ102)
上海市优秀青年教师科研专项基金(slgl0020)
关键词
射频能量
含水量
吸收峰
光学检测
LABVIEW
radio--frequency energy water content
absorption peak
optical detection Labview
