June Spectra of the Month: Blood Profusion

Reflection Spectra- Left Thumb
Reflection Spectra- Left Thumb
Reflection Spectra- Left Thumb|| Reflection Spectra- Left Thumb||

This month, Avantes, Inc. has been studying biomediccal applications. We researched the development of non-invasive optical blood glucose measurements and discovered Avantes equipment at the forefront of optical diagnostic measurement research. The Avantes, Inc. engineering team volunteered as test subjects to test a set up for blood profusion measurements.   

Attached and below are screenshots of the data acquired when measuring the effects of cutting off blood circulation in the thumb, a downloadable data file, and a downloadable PDF of the original University of Ronstock research that inspired the experiment

The experiment involved the use of a rubberband to temporaily restrict blood flow to the subjects thumbs while a spectra reading was acquired each second for 180 seconds total measurement time. Risk of injury to the subjects due to temporary blood flow restriction was minimal.

Equipment used:

Spectrometer: AvaSpec-2048x16-RS-USB2 SLIT 100 INSTALLED SN 1509048U1 IB, from 600-1112 nm (594-1124 measured), OSF-600
Fiber: FC-UVIR600-1-BX SN 1609152
Light: AvaSphere-50-LS-HAL-6-S1 SN 1312031
Software: AvaSoft 8.6.1.0 Absorbance Mode & Reflection Mode Averaging = 100 Integration Time = 3ms


Equipment set up 

blood profusion system setup1 blood profusion system setup1

Spectra Images

absorption-right
Absorption Spectra
Right Thumb
reflection-right
Reflection Spectra
Right Thumb
absorption-left
Absorption Spectra
Left Thumb
reflection-left
Reflection Spectra
Left Thumb

Downloadable Files

excel-download-data
Downloadable
Excel
Files
pdf-download-research
Original
U. of Ronstock
Research