Apparatus for supplying gases to a patient

  • US 8,186,345 B2
  • Filed: 05/11/2010
  • Issued: 05/29/2012
  • Est. Priority Date: 08/20/2004
  • Status: Active Grant
First Claim
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1. An apparatus for supplying gases to a patient comprising:

  • a gases supply,a delivery conduit including a heater wire for heating said conduit, wherein said heater wire is located within, around or throughout said conduit and utilized in an electrical circuit including at least one identification element having a characteristic impedance,a controller for controlling the heating of the heater wire and wherein said controller is adapted to measure said characteristic impedance of said identification element and identify said delivery conduit based on said characteristic impedance and to apply power to said heater wire based at least in part on the identified conduit.

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