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Holographic occlusion detection system for infusion pumps

  • US 8,287,488 B2
  • Filed: 12/08/2009
  • Issued: 10/16/2012
  • Est. Priority Date: 12/08/2009
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a sensor having a sensing portion configured to deform as pressure changes inside the sensor;

    a holographic label affixed to the sensing portion of the sensor, the holographic label being deformable to deform with the sensing portion as the pressure changes inside the sensor;

    a light source configured to shine light onto the holographic label in which the light from the light source is polychromatic light; and

    a photodetector oriented to detect the light reflected from the holographic label.

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