EP0207360A2
Expired / Lapsed
EP
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Diagnostic test device
Assignee: Bayer Corp
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Filing: 1986-06-16
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Granted: —
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Expires: 2006-06-16
Abstract
Abstract A diagnostic test device for detecting an analyte in fluids, particularly body fluids such as blood, includes bibulous material impregnated with at least one ingredient capable of producing a detectable response upon contact with the fluid. The bibulous material may form a substrate for the teat device or It may be in the form of pads mounted on a rigid matrix or substrate. A selectively permeable silicone film is bonded over the bibulous material and to the substrate. Upon curing, the silicone water based elastomer forms a durable rubbery surface that can be wiped without tearing or damaging the film. In the precured state the silicono water based elastomer ie liquid and can be easily applied over the bibulous material. If the bibulous material is formed as pads on a substrate, the precured elastomer will flow over and between the pads and the curad elastomer film will bond to the substrate preventing runover between the pads.
Inventors
- 👤 James E. Jones
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/54; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
46 words
A test device for detecting an analyte in a fluid, comprising: liquid-retaining material impregnated with a catalyst capable of reacting with said analyte to produce a detectable change, said impregnated material having at least portions covered with a continuous layer of selectively analyte-permeable polymerized, silicon-containing compound.
Claim 2
Dependent Claim
46 words
A test device for detecting an analyte in a fluid, comprising: liquid-retaining material impregnated with a catalyst capable of reacting with said analyte to produce a detectable change, said impregnated material having at least portions covered with a continuous layer of selectively analyte-permeable polymerized, silicon-containing compound.
Claim 3
Dependent Claim
54 words
The test device of claim 1 wherein said layer is formed from a composition comprising a dispersed, polymerizable silicon-containing compound in a removable carrier liquid, said silicon-containing compound being substantially immiscible in said carrier liquid, and a portion of said carrier liquid being removed during polymerization of said silicon-containing compound in dispersed, layered form.
Claim 4
Dependent Claim
17 words
The test device of any of claims 1 and 2 wherein the silicon-containing compound comprises an organosiloxane.
Claim 5
Dependent Claim
17 words
The test device of any of claims 1 to 3, wherein the silicon-containing compound comprises a diorganosiloxane.
Claim 6
Dependent Claim
75 words
A test article for testing for glucose in a fluid such as blood, comprising: bibulous material impregnated with a mixture including an enzyme system with glucose oxidase activity, a substance with peroxidative activity, and an indicator material which is oxidized in the presence of peroxide, said substance including peroxidative activity causing a change in color, and a film of polymerized, silicon-containing compound bonded to said article over said bibulous material, said film being glucose permeable.
Claim 7
Dependent Claim
75 words
A test article for testing for glucose in a fluid such as blood, comprising: bibulous material impregnated with a mixture including an enzyme system with glucose oxidase activity, a substance with peroxidative activity, and an indicator material which is oxidized in the presence of peroxide, said substance including peroxidative activity causing a change in color, and a film of polymerized, silicon-containing compound bonded to said article over said bibulous material, said film being glucose permeable.
Claim 8
Dependent Claim
36 words
The test article of claim 5 further comprising a substrate, said bibulous material comprising pads of said material mounted on said substrate, said film being bonded over said pads and to said substrate between said pads.
Claim 9
Dependent Claim
61 words
The test article of any of claims 5 and 6 wherein said film comprises a glucose-permeable membrane formed from a layer of a dispersed, polymerizable silicon-containing compound in a removable carrier liquid, said silicon-containing compound being substantially immiscible in said carrier liquid, and a portion of said carrier liquid being removed during polymerization of said silicon-containing compound in dispersed, layered form.
Claim 10
Dependent Claim
55 words
A test device for determining a component in a sample, comprizing; a rigid support matrix, said matrix including a reactant system including at least one ingredient capable of producing a detectable response upon contact with said sample component, characterized in that a film of polymerized, silicon-containing compound of variable thickness is over said reactant system.
Claim 11
Dependent Claim
55 words
A test device for determining a component in a sample, comprizing; a rigid support matrix, said matrix including a reactant system including at least one ingredient capable of producing a detectable response upon contact with said sample component, characterized in that a film of polymerized, silicon-containing compound of variable thickness is over said reactant system.
Claim 12
Dependent Claim
26 words
The test device of claim 8 wherein said reactant system includes a plurality of pads of bibulous material, said film being over and between said pads.
Claim 13
Dependent Claim
79 words
The test device of any of claims 8 and 9, wherein said film is formed from a layer of a composition comprising a dispersed, polymerizable silicon-containing compound in a removable carrier liquid, said silicon-containing compound being substantially immiscible in said carrier liquid, and a portion of said carrier liquid being removed during polymerization of said silicon-containing compound in dispersed, layered form, said carrier liquid comprising at least 5% by weight of the layered composition prior to completion of polymerization.
References Cited (Backward Citations)
No citation records indexed.
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