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Apparatus and method for detecting fecal and ingesta contamination on hands using an lllumination imaging device

  • US 20030164456A1
  • Filed: 02/21/2003
  • Published: 09/04/2003
  • Est. Priority Date: 02/25/2002
  • Status: Abandoned Application
First Claim
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1. A system for detecting the presence of ingesta or fecal matter on the surface of an object that is placed in an area adjacent to the system, the system being mounted on a support device such as a wall, the system comprising:

  • a) a supporting structure;

    b) a light source;

    c) said supporting structure supporting said light source;

    d) said light source emitting light into the area adjacent to the system;

    e) said emitted light having a wavelength effective to elicit fluorescence from the ingesta or fecal matter on the object at a wavelength between about 660 to 680 nm;

    f) a light detection device;

    g) said light detection device being positioned so as to detect fluorescence light emissions from the area adjacent to the system;

    h) said light detection device detecting fluorescent light emissions having a wavelength between about 660 to 680 nm from the object surface;

    i) a light filter;

    j) said light filter being positioned between said light detection device and the area adjacent to the system;

    k) said filter substantially filtering out light other than light at a wavelength between about 660 to 680 nm;

    l) a processor;

    m) an indicator;

    n) said processor being in communication with said light detection device; and

    o) said processor transmitting a signal between said light detection device and said indicator.

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