The HAWKT Hypoxia Detection and Alerting System for Military Pilots
Navy SBIR FY2009.1


Sol No.: Navy SBIR FY2009.1
Topic No.: N091-018
Topic Title: The HAWKT Hypoxia Detection and Alerting System for Military Pilots
Proposal No.: N091-018-0080
Firm: SAFE, Inc.
5032 S. Ash Avenue, Ste. 101
Tempe, Arizona 85282-6842
Contact: Stan Desjardins
Phone: (480) 820-2032
Web Site: http://www.safeinc.us
Abstract: Military aircraft that fly at high altitudes and/or conduct high-g maneuvers require sophisticated safety systems to prevent the pilot from becoming susceptible to the negative effects of hypoxia and gravitational loss of consciousness. Pressure breathing and g-suits help to address these issues; however, a noninvasive warning system is required to alert the pilot to physiologic conditions signaling a hypoxic condition. This is complicated by the highly dynamic environment (pressure breathing, g-loading, pilot movement, irregular breathing, anti-g straining, mask seepage, hypoxia tolerance variation) and that the system must be adaptable to existing systems without modification by the component/system vendor. Safe, Inc. has conceived of a self-powered/low-power wireless noninvasive hypoxia sensor suite that offers ultra-high accuracy measurement (>99%) of blood/breathe oxygenation status with the superior fault-mitigation technology and near real-time responsiveness of hypoxia sensing. Fault mitigation and measurement accuracy is afforded by multi-modal sensors that assess O2 and CO2 metabolism as well as blood oxygenation. Advanced algorithms are employed to account for pilot movement and low blood perfusion. Sensors are mask-mounted and communicate wirelessly to a fore-arm mounted alerting system.
Benefits: Pilots will benefit from an improved safety system permitting an increased confidence level regarding their real time physiologic condition during high altitude/high-g flight. This technology has application in any military or commercial aircraft employing pressure breathing equipment and may benefit first responders (firefighters, EMTs) and high altitude mountain climbers.

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