Immunological testing devices and methods
First Claim
1. An immunological testing device comprising:
- a plastic structure having upper and lower open ends, having a through-passage of predetermined small cross-sectional area sufficiently small to retain liquid by capillary action within space thereof at at-least substantially an intermediate portion of a length thereof, and the plastic structure being elongated along a longitudinal axis of the through-passage, the ratio of the wall surface area of said through-passage being larger than the cross-sectional area of said intermediate portion, and in which said plastic structure has formed therein an enlarged funnel structure in continuous flow-relationship with the upper end of the intermediate portion of the through-passage of said predetermined small cross-sectional area.
0 Assignments
0 Petitions
Accused Products
Abstract
A self-supporting plastic structure having a plurality of through-passages, each passage being of cross-sectional shape and area such that walls thereof provide a large amount of surface area relative to a substantially small amount of space cross-sectional area, each through passage having an upper funnel portion for receiving liquid, and a small outlet aperture of a smallness sufficient to effect a retention of liquid drop(s) within space of the through-passage by capillary action in the absence of additionally added fluid which by weight thereof forces liquid from the outlet aperture, and a separate washer structure seatable above the plastic structure and having a main liquid-containable vessel defined with a plurality of open outlets in the base thereof aligned for feeding contained liquid into separate ones of the through-passages simultaneously for the concurrent washing of each and all and/or for concurrent adding of further reagent or the like simultaneously concurrently to each and all.
-
Citations
11 Claims
-
1. An immunological testing device comprising:
- a plastic structure having upper and lower open ends, having a through-passage of predetermined small cross-sectional area sufficiently small to retain liquid by capillary action within space thereof at at-least substantially an intermediate portion of a length thereof, and the plastic structure being elongated along a longitudinal axis of the through-passage, the ratio of the wall surface area of said through-passage being larger than the cross-sectional area of said intermediate portion, and in which said plastic structure has formed therein an enlarged funnel structure in continuous flow-relationship with the upper end of the intermediate portion of the through-passage of said predetermined small cross-sectional area.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification