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Device for conducting diagnostic assays

  • US 5,401,637 A
  • Filed: 05/06/1993
  • Issued: 03/28/1995
  • Est. Priority Date: 08/29/1990
  • Status: Expired due to Fees
First Claim
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1. A diagnostic device for conducting enzymatic and chromogenic assays, said device comprising only one top housing connected to only one bottom housing, said top housing having a plurality of rectangularly-shaped openings adjacent each to another in a top surface thereof, planar wall means defining said openings and depending from said top surface to define conduits extending from said top surface completely through said top housing and in part beyond a bottom plane of said top housing, said depending wall means including top housing planar side walls and a planar barrier wall disposed between each adjacent two of said conduits, assay means disposed in said top housing in at least one of said conduits, said assay means being at least in part of a material permitting flow therethrough of a liquid substance undergoing test, an assay means horizontal support member extending side-to-side and end-to-end in said top housing, said support member being parallel to said bottom plane of said top housing and nearer to said bottom plane than to said top housing top surface, said support member having orifices therein, each of said orifices being disposed in one of said conduits, said barrier wall extending beyond said bottom plane of said top housing, said bottom housing comprising a bottom wall and upstanding side walls, edges of said depending side walls of said top housing being joined to an inclined interior surface portion of said bottom housing upstanding side walls, a distal edge of said barrier wall being proximate said bottom wall, and means for reducing pressure in said bottom housing to draw said liquid through said conduits and said assay means and into said bottom housing, said barrier wall discouraging movement of said liquid from each of said conduits.

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