• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Advanced Biomedical and Clinical Diagnostic Systems V; Progress in Biomedical Optics and Imaging; vol.8 no.7; Proceedings of SPIE-The International Society for Optical Engineering; vol.6430 >A remote and non-contact method for obtaining the blood-pulse waveform with a laser Doppler vibrometer
【24h】

A remote and non-contact method for obtaining the blood-pulse waveform with a laser Doppler vibrometer

机译：远程非接触式激光多普勒测振仪获得脉搏波形的方法

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The use of lasers to remotely and non-invasively detect the blood pressure waveform of humans and animals would provide a powerful diagnostic tool. Current blood pressure measurement tools, such as a cuff, are not useful for burn and trauma victims, and animals require catheterization to acquire accurate blood pressure information. The purpose of our sensor method and apparatus invention is to remotely and non-invasively detect the blood pulse waveform of both animals and humans. This device is used to monitor an animal or human's skin in proximity to an artery using radiation from a laser Doppler vibrometer (LDV). This system measures the velocity (or displacement) of the pulsatile motion of the skin, indicative of physiological parameters of the arterial motion in relation to the cardiac cycle. Tests have been conducted that measures surface velocity with an LDV and a signal-processing unit, with enhanced detection obtained with optional hardware including a retro-reflector dot. The blood pulse waveform is obtained by integrating the velocity signal to get surface displacement using standard signal processing techniques. Continuous recording of the blood pulse waveform yields data containing information on cardiac health and can be analyzed to identify important events in the cardiac cycle, such as heart rate, the timing of peak systole, left ventricular ejection time and aortic valve closure. Experimental results are provided that demonstrates the current capabilities of the optical, non-contact sensor for the continuous, non-contact recording of the blood pulse waveform without causing patient distress.
机译：使用激光远程和非侵入性地检测人和动物的血压波形将提供强大的诊断工具。当前的血压测量工具（例如袖带）对烧伤和创伤受害者没有用，并且动物需要导管插入才能获得准确的血压信息。我们的传感器方法和设备发明的目的是远程和非侵入性地检测动物和人类的脉搏波形。该设备用于通过激光多普勒振动计（LDV）的辐射监测靠近动脉的动物或人的皮肤。该系统测量皮肤的脉动运动的速度（或位移），指示与心动周期有关的动脉运动的生理参数。已经进行了使用LDV和信号处理单元测量表面速度的测试，并通过包括后向反射器点的可选硬件获得了增强的检测。通过使用标准信号处理技术对速度信号进行积分以获得表面位移来获得脉搏波形。连续记录脉搏波形会产生包含有关心脏健康信息的数据，并可进行分析以识别心动周期中的重要事件，例如心率，心脏收缩的高峰时间，左心室射血时间和主动脉瓣关闭。提供的实验结果证明了光学，非接触式传感器在不引起患者痛苦的情况下连续，非接触式记录脉搏波形的当前功能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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