Hip protector system and method for hip fracture prevention
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Apr 23, 2017
filing date -
Feb 3, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A hip protector system includes an inflatable airbag, a proximity sensor to measure a distance to a point on the ground surface, a gyro to provide spatial orientation of the waist plane of the user, an accelerometer to determine the vertical acceleration of the waist plane of the user and a micro-controller unit. The micro-controller unit calculates a height based on proximity measurement and spatial orientation, computes values of downward velocity based on a change of the height in time and based on the vertical acceleration integrated over time and correlates the downward velocities to validate a true height in time to the ground surface. The airbag is inflated to protect the user responsive to the true height.
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