Patent ID: 7837936
Filing Date: 2010-11-23
Classification: A61B,G01J,G01N,Y10T

Abstract:
1. A disposable device for detecting the presence of a first substance in a test fluid, comprising: a housing of generally cylindrical shape; a first porous filter positioned within a lumen of said housing; a second porous filter positioned within a lumen of said housing in longitudinally spaced relation to said first porous filter; said first and second porous filters being snugly received within said lumen of said housing; a first indicator reagent disposed between said first and second porous filters; a first hermetic seal secured to a first end of said housing; a second hermetic seal secured to a second end of said housing; at least one porous filter of said first and second porous filters being treated with a second indicator reagent that reacts to a second substance in the breath of said user; whereby a user blows through said lumen and said second indicator reagent undergoes a visually detectible change in the presence of a predetermined amount of said second substance in the breath of said user; whereby said first and second hermetic seals are removed from said housing when said disposable device is to be used; whereby a user blows through said lumen and said first indicator reagent undergoes a visually detectible change in the presence of a predetermined amount of said first substance in the breath of said user; and whereby said housing need not be subjected to compressive forces.