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Controlling Transfer of Objects Affecting Optical Characteristics

  • US 20090156917A1
  • Filed: 12/17/2007
  • Published: 06/18/2009
  • Est. Priority Date: 12/17/2007
  • Status: Active Grant
First Claim
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1. An implantable article comprising:

  • first and second parts;

    each of the first and second parts including a respective container and being operable as an optical cavity with a respective optical spectrum characteristic that can be affected by presence of spectrum-affecting objects in the container;

    the respective container having a respective set of one or more bounding regions through which objects in bodily fluid can transfer between the container'"'"'s interior and exterior when the article is implanted in a body; and

    first and second fluidic components that control transfer of objects in bodily fluid through the respective bounding regions of the first and second parts, respectively;

    the first fluidic component permitting transfer of a first set of the spectrum-affecting objects into the first container at a more rapid rate than spectrum-affecting objects not in the first set;

    the second fluidic component permitting transfer of a second set of the spectrum-affecting objects into the second container at a more rapid rate than spectrum-affecting objects not in the second set;

    the first and second sets of spectrum-affecting objects both including a shared subset;

    the first set including a non-shared subset that the second set does not include;

    objects that are instances of an analyte type being predominantly in the non-shared subset.

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