Patent ID: 7419640
Filing Date: 2008-09-02
Classification: G01N,Y10T

Abstract:
1. An immunoassay device for screening an analyte in a liquid sample, comprising first and second upper housings and a lower housing, each of said first and second upper housings comprising holes for permitting the liquid sample to pass therethrough, transfer membrane means for binding a ligand, said transfer membrane means being sandwiched between the first and second upper housings and supported on the second upper housing, absorbing means disposed directly beneath the second upper housing for absorbing unbound ligand and solutions from the transfer membrane means, mesh means disposed on the lower housing for supporting said absorbing means, seal means for sealing the device, connecting means for connecting the first and second upper housings and the lower housing, and means for generating a vacuum in the device, said means for generating a vacuum comprising a water tap, wherein the device consists of the first and second upper and lower housings, the transfer membrane means, the absorbing means, the seal means, the vacuum means and the connecting means.