Adaptive cushion method and apparatus for minimizing force concentrations on a human body

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United States of America Patent

PATENT NO 8533879
SERIAL NO

12075937

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An adaptive cushion apparatus for minimizing force concentrations on body parts of a person seated or lying on a chair or bed includes an overlay cushion having a plurality of individual air bladder cells, each having thereon a stretchable piezoresistive force sensor of novel design and construction. The apparatus includes an electro-pneumatic control system for inflating and deflating individual air bladder cells to pressures measured by a pressure transducer which tend to minimize force concentrations sensed by the force sensors. A force minimization method according to the invention includes varying the inflation pressure in a first air bladder cell while measuring the sum of the forces exerted on all air bladder cells, repressurizing the first cell to that pressure for which a minimum total force was obtained, repeating the cyclical variation in pressure and re-inflation to a minimum force-obtaining pressure for each of the remaining air bladder cells, and repeating the sequence for all air bladder cells until the force variations are minimized below a predetermined threshold value.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PATIENTECH LLCMORNINGVIEW, KY12

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Taylor, Geoffrey L Winnipeg, CA 24 842

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