首页> 外国专利> Diagnostic apparatus for measuring changes of arterial and venous blood volumes in brain with respiration signal modulation

Diagnostic apparatus for measuring changes of arterial and venous blood volumes in brain with respiration signal modulation

机译:用于通过呼吸信号调制来测量大脑中动脉和静脉血容量变化的诊断设备

摘要

A diagnostic apparatus includes light sources which emit near infrared light rays of different wavelengths. The light rays are introduced into human brain to be subjected to diagnosis and the light rays transmitted through the brain are picked up. There are provided a first detector which detects occurrences of respirations of the subject and outputs a respiration signal, and a second detector which detects occurrences of heartbeats of the subject and outputs a heartbeat signal. The light transmitted through the brain is derived in synchronism with both the respiration signal and the heartbeat signal and first and second modulated light transmission signals are produced which are respectively modulated by the respiration signal and the heartbeat signal. The first and second modulated light transmission signals are separately analyzed to provide variations in concentration of oxygenated media &Dgr;X.sub. 02 and disoxygenated media &Dgr;X contained in venous and arterial blood of the brain, respectively. Based thereon, oxygen saturations of both venous and arterial blood flowing in the brain are separately computed and displayed in a monitor screen.
机译:诊断设备包括发射不同波长的近红外线的光源。将光线引入人脑进行诊断,然后拾取通过大脑传输的光线。提供了一种第一检测器,其检测对象的呼吸的发生并输出呼吸信号;以及第二检测器,其检测对象的心跳的发生并输出心跳信号。通过大脑传输的光与呼吸信号和心跳信号同步导出,并产生分别由呼吸信号和心跳信号调制的第一和第二调制光传输信号。分别分析第一和第二调制光透射信号以提供含氧介质浓度的变化。脑的静脉血和动脉血分别含有O 2和脱氧的培养基&D; X。基于此,分别计算脑中流动的静脉血和动脉血的氧饱和度,并将其显示在监视器屏幕中。

著录项

  • 公开/公告号US5253646A

    专利类型

  • 公开/公告日1993-10-19

    原文格式PDF

  • 申请/专利权人 HAMAMATSU PHOTONICS K.K.;

    申请/专利号US19920853183

  • 发明设计人 DAVID T. DELPY;MARK COPE;

    申请日1992-03-18

  • 分类号A61B5/00;A61B6/00;

  • 国家 US

  • 入库时间 2022-08-22 04:57:39

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号