A Noninvasive Miniaturized-Wireless Laser-Doppler Fiber-Optic Sensor for Understanding Distal Fingertip Injuries in Astronauts
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- During extra-vehicular activities (EVAs) or spacewalks astronauts over use their fingertips under pressure inside the confined spaces of gloves/space suits. The repetitive hand motion is a probable cause for discomfort and injuries to the fingertips. We describe a new wireless fiber-optic probe that can be integrated inside the astronaut glove for noninvasive blood perfusion measurements in distal fingertips. In this preliminary study, we present blood perfusion measurements while performing hand-grip exercises simulating the use of space tools.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20100000018., E-17045., NASA/TM-2009-215679., and Photonics West (International Society for Optical Engineering (SPIE); 24 -29 Jan. 2009; San Jose, CA; United States.
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