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Motion and sound monitor and stimulator

  • US 5,684,460 A
  • Filed: 05/09/1996
  • Issued: 11/04/1997
  • Est. Priority Date: 04/22/1994
  • Status: Expired due to Term
First Claim
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1. A sound and movement monitor and stimulator, comprising:

  • (a) a fluid-filled mattress for supporting an animate object;

    (b) a sound and movement transducer positioned for detecting movement activity and acoustic activity of the object on said mattress, said transducer providing an output signal in response to forces applied thereto which are generated by and representative of said activity, said transducer including a pressure transducing element arranged in fluid communication with the internal fluid volume of said mattress such that forces applied to said mattress by said object cause pressure changes which are detected by said pressure transducing element, said pressure transducing element providing an output proportional to the pressure changes;

    (c) a circuit connected to said transducer and adapted to monitor said output signal from said transducer; and

    (d) a stimulator connected to said circuit and being operable to provide at least physical movement to the object to stimulate movement or acoustic activity in the object when the output from said transducer to said circuit corresponds to no movement activity and no acoustic activity from the object;

    wherein said mattress is configured so said activity from the object including at least one of breathing, heart and motion sounds of the object is transmitted to said transducer said mattress including top and bottom surfaces which are sufficiently rigid so as to facilitate transmission of pressure fluctuations from the object to said transducer.

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