Patent ID: 11918999
Assignee: GATTACO INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A lateral flow assay device comprising:
a lateral flow membrane;
a transfer pad overlapping and in contact with the lateral flow membrane;
a spacer laterally adjacent to the transfer pad;
a pooling layer disposed on top of the spacer and the transfer pad, the pooling layer laterally defining a filtrate pooling chamber;
a sample pad disposed on top of the pooling layer, the filtrate pooling chamber being vertically defined between the sample pad on one side and the spacer and transfer pad on the other side; and
a soluble matrix contained in the filtrate pooling chamber and in contact with both the sample pad and the spacer, the soluble matrix possessing a capillary drawing force sufficient to draw, upon application of a liquid sample to the sample pad, a filtrate extracted from the sample pad into the soluble matrix, causing the soluble matrix to at least partially dissolve or disintegrate in the filtrate, whereby the filtrate is released into the filtrate pooling chamber for delivery from the filtrate pooling chamber via the transfer pad to the lateral flow membrane.