초록

A liquid transport device is disclosed for providing capillary flow. The device features a capillary transport zone provided by two opposed surfaces and having at least two regions, and means extending between said regions for delaying flow of liquid therebetween.

대표청구항 ▼

In a liquid testing device comprising (a) two opposing surfaces which are spaced apart a distance effective to induce capillary flow of introduced liquid and to create a void zone of intended liquid transport, said zone comprising at least two distinct regions, at least one of which is a liquid anal

In a liquid testing device comprising (a) two opposing surfaces which are spaced apart a distance effective to induce capillary flow of introduced liquid and to create a void zone of intended liquid transport, said zone comprising at least two distinct regions, at least one of which is a liquid analysis region, and (b) means permitting introduction of liquid into said zone for capillary transport to said regions, the improvement comprising gating means located between said two distinct regions for delaying capillary transport of liquid through said zone from one of said regions to other of said regions, said gating means including a gating wall extending across the intended path of liquid flowing from one of said regions to the other so as to delay liquid flow along said path, said wall including a gating aperture therein that is free of fibers.