Test carrier for the determination of an analyte as well as a process for its production
First Claim
1. An analytical device for determining an analyte in a liquid sample, said analytical device comprising:
- a layer of flat material having at least one absorbent sample application area and at least one absorbent detection area, said at least one absorbent detection area having a reagent for determining the analyte, said absorbent sample application area and said absorbent detection area being disposed within a liquid impermeable boundary, said sample application area not containing all reagents necessary for analyte detection and determination, whereinsaid layer of flat material further comprising at least one absorbent connector, said absorbent connector being disposed such that said sample application area and said detection area are connected by said absorbent connector,wherein said liquid impermeable boundary and said absorbent connector prevent liquid from being transported between said at least one sample application area and said at least one detection area, except through said absorbent connector.
1 Assignment
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Accused Products
Abstract
An analytical device determines the analytes in a liquid sample. This device includes a layer of flat material which has a sample application area and a detection area thereupon. The detection area includes a reagent for determining the analyte, and the absorbent sample application area and the absorbent detection area are disposed within a liquid impermeable boundary. The layer of flat material also includes an absorbent connector which is disposed such that the sample application area and the detection area are connected by the absorbent connector. The liquid impermeable boundary and the absorbent connector prevents liquid from being transported between the sample application area and the detection area, except through the absorbent connector.
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Citations
85 Claims
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1. An analytical device for determining an analyte in a liquid sample, said analytical device comprising:
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a layer of flat material having at least one absorbent sample application area and at least one absorbent detection area, said at least one absorbent detection area having a reagent for determining the analyte, said absorbent sample application area and said absorbent detection area being disposed within a liquid impermeable boundary, said sample application area not containing all reagents necessary for analyte detection and determination, wherein said layer of flat material further comprising at least one absorbent connector, said absorbent connector being disposed such that said sample application area and said detection area are connected by said absorbent connector, wherein said liquid impermeable boundary and said absorbent connector prevent liquid from being transported between said at least one sample application area and said at least one detection area, except through said absorbent connector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 17, 19, 20, 62, 63)
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9. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material, said sample application area not containing all reagents necessary for analyte detection and determination; forming at least one absorbent detection area on said layer of flat first material; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area, wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample. - View Dependent Claims (10, 11, 13, 72, 73)
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12. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material forming at least one absorbent detection area on said layer of flat first material, wherein said first absorbent first material is heat-deformable; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area, wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample. - View Dependent Claims (74, 75)
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14. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material forming at least one absorbent detection area on said layer of flat first material; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area, providing a die having a plurality of elevations and depressions formed therein, wherein said steps of forming the sample application area, forming the detection area, and forming the absorbent connector is performed by contacting the layer of flat first material with said die; wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample. - View Dependent Claims (15, 16, 76, 77)
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18. An analytical device for determining an analyte in a liquid sample, said analytical device comprising:
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a layer of flat material having at least one absorbent sample application area and at least one absorbent detection area, said at least one absorbent detection area having a reagent for determining the analyte, said absorbent sample application area and said absorbent detection area being disposed within a liquid impermeable boundary, wherein said layer of flat material further comprising at least one absorbent connector, said absorbent connector being disposed such that said sample application area and said detection area are connected by said absorbent connector, wherein said liquid impermeable boundary and said absorbent connector prevent liquid from being transported between said at least one sample application area and said at least one detection area, except through said absorbent connector, and wherein said sample application area, said absorbent connector, said detection area, and said liquid impermeable boundary of said layer of flat material comprise the same chemical elements. - View Dependent Claims (64, 65)
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21. An analytical device for determining an analyte in a liquid sample, said analytical device comprising:
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a layer of flat material having at least one absorbent sample application area and at least one absorbent detection area, said at least one absorbent detection area having a reagent for determining the analyte, said absorbent sample application area and said absorbent detection area being disposed within a liquid impermeable boundary, wherein said layer of flat material further comprising at least one absorbent connector, said absorbent connector being disposed such that said sample application area and said detection area are connected by said absorbent connector, said at least one absorbent connector having a cross-section which is less than a cross-section of the sample application area and a cross-section of the detection area, wherein said liquid impermeable boundary and said absorbent connector prevent liquid from being transported between said at least one sample application area and said at least one detection area, except through said absorbent connector. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 66, 67)
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32. An analytical device for determining an analyte in a liquid sample, said analytical device comprising:
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a layer of flat material having at least one absorbent sample application area and at least one absorbent detection area, said at least one absorbent detection area having a reagent for determining the analyte, said absorbent sample application area and said absorbent detection area being disposed within a liquid impermeable boundary, said layer of flat material being heat-meltable material, wherein the liquid-impermeable boundaries comprise heat treated areas of said heat-meltable material, wherein the heat treatment reduces the absorbency of the heat treated areas, wherein said layer of flat material further comprising at least one absorbent connector, said absorbent connector being disposed such that said sample application area and said detection area are connected by said absorbent connector, wherein said liquid impermeable boundary and said absorbent connector prevent liquid from being transported between said at least one sample application area and said at least one detection area, except through said absorbent connector. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 68, 69)
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41. An analytical device for determining an analyte in a liquid sample, said analytical device comprising:
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a layer of flat material having at least one absorbent sample application area and at least one absorbent detection area, said at least one absorbent detection area having a reagent for determining the analyte, said absorbent sample application area and said absorbent detection area being disposed within a liquid impermeable boundary, said layer of flat material being formed of a mixture of heat-meltable and non-heat-meltable material, wherein said liquid impermeable boundary comprises heat treated areas of said mixture of heat-meltable and non-heat-meltable material, wherein the heat treatment reduces absorbance of the heat treated areas, wherein said layer of flat material further comprising at least one absorbent connector, said absorbent connector being disposed such that said sample application area and said detection area are connected by said absorbent connector, wherein said liquid impermeable boundary and said absorbent connector prevent liquid from being transported between said at least one sample application area and said at least one detection area, except through said absorbent connector. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 70, 71)
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50. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material; forming at least one absorbent detection area on said layer of flat first material; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area; providing a heat-deformable second material; locating said heat-deformable second material under said layer of flat first material, wherein said steps of forming the sample application area, forming the detection area, and forming the absorbent connector are performed by heat-treatment of the heat-deformable second material such that the absorbent flat first material is affected in selected areas so that it is no longer absorbent, wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample. - View Dependent Claims (78, 79)
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51. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material; forming at least one absorbent detection area on said layer of flat first material; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area, said at least one absorbent connector having a cross-section which is less than a cross-section of the sample application area and a cross-section of the detection area, wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample. - View Dependent Claims (52, 53, 54, 80, 81)
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55. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material; forming at least one absorbent detection area on said layer of flat first material; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area, wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample, said layer of flat absorbent material being a heat-meltable material wherein said liquid-impermeable boundaries comprise heat treated areas of said heat-meltable material, wherein the heat treatment reduces the absorbency of the heat treated areas. - View Dependent Claims (56, 57, 82, 83)
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58. A process for manufacturing an analytical device for determining an analyte in a liquid sample, said process comprising the steps of:
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providing a layer of flat absorbent first material; forming at least one absorbent sample application area on said layer of flat first material; forming at least one absorbent detection area on said layer of flat first material; forming at least one absorbent connector connecting said at least one sample application area and said at least one detection area, wherein said at least one sample application area, said at least one detection area, and said absorbent connector are disposed within a liquid impermeable boundary, said liquid impermeable boundary being formed during said forming steps, and wherein said at least one absorbent detection area includes a reagent for determining the analyte in a liquid sample, and wherein said layer of flat material comprises a mixture of heat-meltable and non-heat-meltable material, wherein said liquid impermeable boundary comprises heat treated areas of said heat-meltable material, wherein the heat treatment reduces absorbance of the heat treated areas. - View Dependent Claims (59, 60, 61, 84, 85)
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Specification