04624929 is referenced by 56 patents and cites 12 patents.

A device is disclosed for collecting a liquid sample and diluting the liquid sample by virtue of being adapted for use with a container having a volume of diluting liquid. The device comprises a housing adapted for mating with the container where the mated housing and container form a chamber. A bibulous pad is attached to the housing for collecting a predetermined amount of a liquid sample. Additionally, the device, when used with the container, creates a pressure differential between the interior of the housing and the chamber. The pressure differential is sufficient to move a predetermined volume of the diluting liquid through the bibulous pad and into the housing. The device can be used for assaying for a component of a sample. The device has particular use in immunochromatography and for convenience can also contain a strip of bibulous material confined in the housing. In a method for collecting a liquid sample and subsequently diluting the sample with a predetermined volume of a liquid, the sample is collected on an bibulous pad at the base of a housing. The pad is designed to absorb a predetermined amount of the sample. Next, a pressure differential is created between the housing and a container having a volume of diluting liquid to cause a predetermined volume of the liquid to pass through the pad and into the housing.

Sample collector and assay device and method for its use
Application Number
Publication Number
Application Date
December 3, 1984
Publication Date
November 25, 1986
Edwin F Ullman
Theodore J Leitereg
G01N 1/48
G01N 1/10
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