Shut-off timer for a heating blanket
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United States of America Patent
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Jan 7, 2014
Grant Date -
Jul 24, 2008
app pub date -
Jan 18, 2008
filing date -
Jan 18, 2007
priority date (Note) -
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Abstract
A blanket for warming patients during surgery and other medical procedures. The blanket includes one or more temperature sensors and a shut-off timer to prevent prolonged exposure of excessive heat to a patient. Embodiments of the present invention provide a safety feature that cuts power to a heating blanket after a certain period of time has elapsed, irrespective of the feedback provided by a temperature sensor concerning the blanket temperature. That period of time is longer than it takes for the blanket to reach its threshold temperature but shorter than it takes to cause thermal burn injury.
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