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Powerhead of a power injection system

  • US 7,507,221 B2
  • Filed: 10/13/2004
  • Issued: 03/24/2009
  • Est. Priority Date: 10/13/2004
  • Status: Expired due to Fees
First Claim
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1. Within a contrast media injector system, a method comprising the steps of:

  • positioning a syringe ram at a plurality of different locations;

    acquiring at each location;

    a) a first value of the syringe ram position from an encoder, andb) a second value of a level of a reflected signal at an optical sensor, the optical sensor transmitting radiation to a reflective surface and determining an amount of reflective radiation that returns therefrom, the distance between the optical sensor and reflective surface being a function of the position of the syringe ram within the injector system;

    associating the first and second values for each different location.

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