Engineering Innovation Podcast and Radio Series

No More Human Pin Cushions?

PostedOctober 14, 2004

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A new device that projects a bright vein map right onto a patient's arm may eliminate the need to search around with a needle.  Herbert Zeman, a biomedical engineer at the University of Tennessee, invented the technique.  He says infrared light is reflected off the arm and captured by a sensitive TV camera.  The image is then enhanced by computer and projected back onto the skin using software that precision aligns picture and real veins.  A clinical study just presented at an Optical Society of America meeting shows the "Vein Contrast Enhancer" works even on the tiny, often invisible veins of a baby.  With the National Academy of Engineering, Randy Atkins, WTOP Radio.

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