This is the portable vital signs monitor being developed by a San Antonio company called Speer Medical Devices. The device is intended for use by military medics in the field and can monitor things like hemoglobin and pulse oxygenation. (Monday May 2, 2011) JOHN DAVENPORT/jdavenport@express-news.net
Photo: SAN ANTONIO EXPRESS-NEWS, JOHN DAVENPORT / SAN ANTONIO EXPRESS-NEWS
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