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1. (WO2017040994) SYSTEMS AND METHODS FOR CONTROLLING EXCESSIVE FLUID FLOW IN A CASSETTE DESIGNED TO RECEIVE A FLUID SAMPLE

Pub. No.:    WO/2017/040994    International Application No.:    PCT/US2016/050200
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: B01L 3/00
B65D 1/40
F16K 47/10
G01N 21/75
G01N 33/53
Applicants: POLYMER TECHNOLOGY SYSTEMS, INC.
Inventors: MOSKOWITZ, Keith
DAILEY, Christopher
XIE, Charles
LEE, Richard
PHAN, Bao
Title: SYSTEMS AND METHODS FOR CONTROLLING EXCESSIVE FLUID FLOW IN A CASSETTE DESIGNED TO RECEIVE A FLUID SAMPLE
Abstract:
A pinch wall and dam system for controlling fluid flow movement between a sample receiving pad and a test strip includes a sample receiving pad and a test strip in contact with the sample receiving pad. The fluid seeps more quickly under the first portion of the pinch wall than under the second portion of the pinch wall, such that the test strip becomes saturated prior to excess fluid being absorbed in the portion of the sample receiving pad away from the test strip such that the test strip does not become flooded, the portion of the sample receiving pad positioned away from the test strip being sufficiently sized to absorb the excess fluid. The pinch wall and dam system further includes a dam, sitting on top of the sample receiving pad, the dam preventing the backflow of fluid from an area near the first portion of the pinch wall.