Potential of Laser Doppler Flowmetry in the Medical Needle Insertion Procedures

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Abstract

Medical needle insertion procedures possess the risk of life-threatening blood vessel rapture. Here we report a compact laser Doppler Flowmetry (LDF) based system that has a potential of blood vessel detection in the vicinity of the moving needle. The developed LDF system comprises two optical fibers inserted into the needle (the probe), a laser unit and a photodetector. The latter collects the signal produced by photons, scattered from the moving red blood cells, that is further converted into perfusion value. Using LDF system, we have been able to detect the flow independently from the needle penetration angle, site or depth. Moreover, we showed that the blood vessel can be identified inside the tissue phantom while the probe is moving. Our results demonstrate that the developed LDF system is flexible and compatible with different types of needles and thus has a potential in the needle insertion procedures.

Details

Original languageEnglish
Title of host publicationProceedings of the 41th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
Publication statusPublished - 7 Oct 2019
MoE publication typeA4 Article in a conference publication
EventAnnual International Conference of the IEEE Engineering in Medicine and Biology Society - Berlin, Germany
Duration: 23 Jul 201927 Jul 2019
Conference number: 41

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology Society
PublisherIEEE
ISSN (Print)2375-7477
ISSN (Electronic)1557-170X

Conference

ConferenceAnnual International Conference of the IEEE Engineering in Medicine and Biology Society
Abbreviated titleEMBC
CountryGermany
CityBerlin
Period23/07/201927/07/2019

    Research areas

  • Physiological monitoring, Instrumentation, Optical and photonic sensors and systems, Sensor systems and instrumentation

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