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Apparatus and method for respired gas collection and analysis

  • US 5,046,491 A
  • Filed: 10/17/1990
  • Issued: 09/10/1991
  • Est. Priority Date: 03/27/1990
  • Status: Expired due to Term
First Claim
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1. Apparatus for collecting, transporting, sampling and analyzing nasal and oral gases respired by a patient, said apparatus comprisingcannula means constructed and arranged for placement in at least one of the patient'"'"'s nares,said cannula means having at least one opening distal from the patient'"'"'s nare for conducting respired nasal gases,a nasal respired gas conduit having at least two spaced openings, with one of said openings connected in fluid communication with the respired gas opening of the cannula means and the other end of said nasal respired gas conduit connected to respired gas distribution means,oral respired gas capture means for placement near the patient'"'"'s mouth,said oral respired gas capture means comprising a hollow member having at least one aperture therein to permit aggregation of oral respired gases therein and having at least one effluent opening for the removal of oral respired gases therefrom, andan oral respired gas conduit independent from said nasal respired gas conduit, having at least two spaced openings therein, with one of said openings connected in fluid communication with the effluent opening of said oral respired gas capture means and the other end of said oral respired gas conduit connected to said respired gas distribution means.

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