Test strip with adjustable sample absorption capacity
First Claim
1. A device for the quantitative analysis of liquid sample, which test device comprises:
- a support member having a depression therein,a reagent matrix positioned in said depression, andliquid absorbent material positioned at the edges of said depression to absorb excess liquid sample, thereby providing a reproducible sample volume.
2 Assignments
0 Petitions
Accused Products
Abstract
A test strip with a sample absorption capacity which can be preselected comprises a support member capable of supporting along at least two edges a reagent strip in which the support member also has absorbent material positioned to remove excess sample applied to the reagent strip. In a preferred embodiment an intermediate layer is also supported by the support member and positioned above the reagent strip. The intermediate layer removes components of the sample which would otherwise interfere with the analysis being made in the reagent strip. In a further embodiment of the invention a cover is applied to the support member, wherein the cover contains an opening for introduction of sample material.
83 Citations
4 Claims
-
1. A device for the quantitative analysis of liquid sample, which test device comprises:
-
a support member having a depression therein, a reagent matrix positioned in said depression, and liquid absorbent material positioned at the edges of said depression to absorb excess liquid sample, thereby providing a reproducible sample volume. - View Dependent Claims (2, 3, 4)
-
Specification
-
- Resources
-
Current AssigneeMiles, Inc. (Bayer AG)
-
Original AssigneeMiles Laboratories, Inc. (Bayer AG)
-
InventorsEngelmann, Helmut
-
Primary Examiner(s)Lacey, David L.
-
Assistant Examiner(s)Johnston, Jill
-
Application NumberUS06/893,986Time in Patent Office621 DaysField of Search422/56, 422/58, 435/805, 436/170, 264/1.7, 156/73.1US Class Current422/401CPC Class CodesG01N 33/525 Multi-layer analytical elem...
