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Transducer for converting floating ground potential signals to non-floating signals and method of use

  • US 5,309,918 A
  • Filed: 01/28/1993
  • Issued: 05/10/1994
  • Est. Priority Date: 03/28/1991
  • Status: Expired due to Fees
First Claim
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1. A transducer, comprising:

  • a box and cable means for electrically coupling said box to a medical monitor, said box containing;

    (a) a first section having a non-floating ground potential, said first section electrically coupled to said cable means;

    (b) a second section having a floating ground potential, said second section comprising means for electrically coupling said floating ground potential to a sensor which produces floating signals; and

    (c) conversion means coupled to said first and second sections for converting floating signals provided to said second section into non-floating signals, said conversion means comprising a transformer having a primary winding coupled to said first section and a secondary winding coupled to said second section, the connection between said primary winding and cable means consisting essentially of a direct electrical connection without further electronic components between said primary winding and cable means, whereby floating signals are convertible to non-floating signals at or near a patient.

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