Patent ID: 6168758
Filing Date: 2001-01-02
Classification: A61B,B01L,G01N

Abstract:
An apparatus for conducting an assay on a liquid located in a container, the apparatus comprising: a removable cap for closing the container; at least one assaying device located on the cap for visual observation thereof, the assaying device having means for analyzing said liquid and visually displaying the presence of specific analytes in the sample liquid; a reservoir attached to the cap, the reservoir defining a chamber communicating with the assaying device, the reservoir having a wall defining at least one opening for collecting a predetermined volume of sample liquid inside the chamber upon submerging the reservoir in the sample liquid; a means for supplying said liquid collected in said sub-chamber to said assaying device; a valve member located between the reservoir chamber and the assaying device, the valve member being formed of material that absorbs the liquid and swells thereby sealing the assaying device from the chamber after a predetermined amount of sample liquid supplied to the assaying device.