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Apparatus for drawing of a bodily fluid and method therefor

  • US 10,206,663 B2
  • Filed: 01/14/2016
  • Issued: 02/19/2019
  • Est. Priority Date: 01/14/2015
  • Status: Active Grant
First Claim
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1. A sample holder for holding a test sample, the sample holder comprising:

  • an inlet port; and

    a sample chamber that includes a first window region that is transmissive for a first radiation that is characterized by a wavelength within the range of 2.5 microns to 12.5 microns, the sample chamber having a sample region and a capillary channel that that extends around at least half the perimeter of the sample region, wherein the capillary channel fluidically couples the inlet port and the sample region;

    wherein the sample region is characterized by a first capillary force for a first liquid and the capillary channel is characterized by a second capillary force for the first liquid, and wherein the second capillary force is higher than the first capillary force such that the capillary channel is operative for drawing the first liquid from the inlet port to the sample chamber to entirely fill the sample region with the first liquid; and

    wherein the first liquid includes the test sample.

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