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Capacitive patient presence monitor

  • US 5,410,297 A
  • Filed: 01/11/1993
  • Issued: 04/25/1995
  • Est. Priority Date: 01/11/1993
  • Status: Expired due to Fees
First Claim
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1. A patient support monitor apparatus for sensing selected patient movement within a support structure, comprising a sensing unit adapted to be located within an approved support location of the support structure, said sensing unit establishing an essentially continuously varying position signal in response to the varying weight in said support location, an alert condition unit, a signal processing unit connected to said sensing unit and to said alert condition unit and operable to continuously track said position signal and establishing an alert condition signal in response to a selected change in said position signal in a selected time period, for actuating said alert condition unit, and said signal processing unit including a reset unit responsive to a second selected change in said position signal within a second selected time period to reset said alert condition unit and return said signal processing unit to continuously tracking said position signal.

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