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Optical reflection systems and methods for cassette identification fordrug pumps

  • US 5,531,698 A
  • Filed: 06/06/1995
  • Issued: 07/02/1996
  • Est. Priority Date: 04/15/1994
  • Status: Expired due to Term
First Claim
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1. A pump apparatus comprising:

  • a control module including a processor and a pumping mechanism for pumping fluid through a fluid tube;

    a base plate selectively mounted to the control module;

    a fluid tube positioned between the base plate and the pumping mechanism of the control module;

    a light emitter associated with the control module for directing light toward the base plate;

    a light reflector associated with the base plate for reflecting light toward the control module;

    a light receiver associated with the control module for receiving light reflected from the light reflector of the base plate;

    means associated with the light receiver for sending a signal to the processor indicative of the light being sensed.

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