G - Physics – 01 – N
Patent
G - Physics
01
N
150/11, 150/15.1
G01N 33/48 (2006.01) B29C 53/78 (2006.01) C12Q 1/26 (2006.01) G01N 33/558 (2006.01) G01N 33/72 (2006.01) G01N 33/78 (2006.01) G01N 33/80 (2006.01) G01N 33/82 (2006.01) G01N 33/86 (2006.01) G01N 33/96 (2006.01) G01N 37/00 (2006.01)
Patent
CA 1113841
ABSTRACT OF THE DISCLOSURE A test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length of the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination. The test device is particularly suited for performing binding assays, in particular those wherein a radioisotope is used as a label, such as radioimmunoassays.
281767
Deutsch Marshall E.
Mead Louis W.
Osler Hoskin & Harcourt Llp
Thyroid Diagnostics Inc.
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