VIBRATING PATIENT SUPPORT APPARATUS WITH A RESONANT REFERENCING PERCUSSION DEVICE
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United States of America Patent
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N/A
Issued Date -
Dec 7, 2006
app pub date -
May 4, 2006
filing date -
May 4, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vibrating patient support apparatus has a resonant referencing percussion device preferably located internally to a cover of a mattress of the apparatus. The percussion device delivers a percussion or vibration at a controlled operating frequency that is preferably slightly less than a resonant frequency located internal to the mattress of the apparatus. With the various weight distributions of a patient, the device is capable of determining the ever shifting resonant frequency via control signals received by a controller from a pressure sensor or accelerometer of the device. Because the operating frequency is slightly less than the natural resonating frequency, energy of the system is conserved. Because the operating frequency is not the controller calculated resonant frequency, wear on the device and potential damage is minimized.
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