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Fiber Bragg grating based arterial localization device
DOI:10.1088/1361-665X/aa6ec2.png)
摘要
En 中文
A critical first step to many surgical procedures is locating and gaining access to a patients vascular system. Vascular access allows the deployment of other surgical instruments and also the monitoring of many physiological parameters. Current methods to locate blood vessels are predominantly based on the landmark technique coupled with ultrasound, fluoroscopy, or Doppler. However, even with experience and technological assistance, locating the required blood vessel is not always an easy task, especially with patients that present atypical anatomy or suffer from conditions such as weak pulsation or obesity that make vascular localization difficult. With recent advances in fiber optic sensors, there is an opportunity to develop a new tool that can make vascular localization safer and easier. In this work, the authors present a new fiber Bragg grating (FBG) based vascular access device that specializes in arterial localization. The device estimates the location towards a local artery based on the bending of a needle inserted near the tissue surrounding the artery. Experimental results obtained from an artificial circulatory loop and a mock artery show the device works best for lower angles of needle insertion and can provide an approximately 40 degrees range of estimation towards the location of a pulsating source (e.g. an artery).
Keyword:
vascular localization
arterial localization
fiber optic sensor
fiber Bragg grating
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期刊
IF:
3.8
论文数:
8.5K
被引数:
2.5W
机构
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