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Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity : Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip
المؤلفون المشاركون
Kohri, Shimpei
Ohba, Kenkichi
Ishihara, Wataru
Tajikawa, Tsutomu
المصدر
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-06-14
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
A miniaturized fiber-optic laser Doppler velocimetry sensor has been developed to measure the local blood velocity in vivo.
The laser beam emitted from the sensor tip can be focused at any distance between 0.1 and 0.5 mm from the tip.
Consequently, the sensor has a sufficiently high signal-to-noise ratio to measure the local velocity in almost any opaque fluid, including blood.
The sensor head is inserted in an injection needle or a catheter tube.
In the former case, it is inserted at an angle to the wall of a vessel and is scanned across the vessel to measure the velocity distribution.
In the latter case, it is aligned parallel with the flow in a vessel.
For all flows of whole human blood, whole caprine blood, and 69% hematocrit of bovine blood, the velocity distribution across the vessel could be measured very accurately.
The insertion angle of the fiber into the flow significantly affects the measurement accuracy; an angle of about 50° is suitable when an injection needle is used.
When a catheter is employed, an insertion direction opposite to the flow direction is better than parallel to the flow due to the generation of a wake behind the fiber.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Tajikawa, Tsutomu& Ishihara, Wataru& Kohri, Shimpei& Ohba, Kenkichi. 2012. Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity : Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip. Journal of Sensors،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-471288
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Tajikawa, Tsutomu…[et al.]. Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity : Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip. Journal of Sensors No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-471288
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Tajikawa, Tsutomu& Ishihara, Wataru& Kohri, Shimpei& Ohba, Kenkichi. Development of Miniaturized Fiber-Optic Laser Doppler Velocimetry Sensor for Measuring Local Blood Velocity : Measurement of Whole Blood Velocity in Model Blood Vessel Using a Fiber-Optic Sensor with a Convex Lens-Like Tip. Journal of Sensors. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-471288
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-471288
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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