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Multiple capillary biochemical analyzer with barrier member

  • US 5,567,294 A
  • Filed: 01/30/1996
  • Issued: 10/22/1996
  • Est. Priority Date: 01/30/1996
  • Status: Expired due to Fees
First Claim
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1. An analyzer for analyzing an organic sample, said analyzer comprising:

  • (a) a plurality of capillary tubes arranged side by side, each capillary tube having first and second ends, the second ends of the capillary tubes terminating adjacent each other and the first ends being connectable to a source of organic sample,(b) a flow chamber having an interior cavity, the second ends of the capillary tubes terminating inside the interior cavity,(c) means to force said organic sample through the capillary tubes from the first ends of the capillary tubes to the second ends of the capillary tubes,(d) means to provide sheath fluid into the interior cavity of said flow chamber to provide a flow of sheath fluid past the secondly ends of the capillary tubes and for entraining organic sample from said capillary tubes in individual sample streams from the second ends of the capillary tubes,(e) a barrier member spaced from the second ends of said capillary tubes, said barrier member including a plurality of openings therein, said openings being aligned with said second ends of said capillary tubes for the individual sample streams therefrom to pass through said openings, said barrier member having a first side facing said second ends of said capillary tubes, and a second side opposite said first side,(f) radiation means providing electromagnetic radiation having a wavelength that may excite said sample to emit radiation, said radiation means being positioned to illuminate said sample streams between said second ends of said capillary tubes and said first side of said barrier member,(g) and radiation detection means on said second side of said barrier means for detecting radiation which is emitted from said sample streams and which passes through said openings to said second side of said barrier member.

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