Diagnostic test carrier with a capillary gap
First Claim
1. A diagnostic test carrier, comprisinga supporting layer;
- a detection layer arranged on the supporting layer, said detection layer carrying reagents for the detection of an analyte in a liquid sample; and
an inert layer covering and extending beyond the detection layer onto the supporting layer, to which supporting layer the inert layer is attached,wherein the inert layer contains at least one hole in the area of the inert layer covering the detection layer, through which at least one hole the liquid sample can be applied to the detection layer,wherein the inert layer is spaced from the detection layer at a distance which allows a capillary liquid transport between the detection layer and the inert layer,and wherein the inert layer is spaced from the supporting layer at a distance such that a capillary liquid transport between the inert layer and the supporting layer is also possible.
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Accused Products
Abstract
The invention concerns a diagnostic test carrier (1) containing a supporting layer (2) with a detection layer (3) arranged thereon containing reagents required for the determination of an analyte in a liquid sample and an inert layer (4) covering the detection layer (3) wherein the inert layer (4) is arranged at such a distance (5) from the detection layer to enable a capillary active liquid transport between the detection layer and inert layer (3,4), characterized in that the inert layer (4) extends beyond the detection layer and wherein the area (10) that extends beyond the detection layer is attached to the supporting layer (2) in such a way that a continuous capillary active liquid transport between the inert layer and detection layer (4,3) and between the inert layer and supporting layer (4,2) is possible and in addition the inert layer (4) contains several holes (7) in the area of the detection layer (3) through which the sample to be examined and the components contained therein can be applied to the detection layer (3) as well as its use for the determination of an analyte in a liquid.
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Citations
29 Claims
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1. A diagnostic test carrier, comprising
a supporting layer; -
a detection layer arranged on the supporting layer, said detection layer carrying reagents for the detection of an analyte in a liquid sample; and an inert layer covering and extending beyond the detection layer onto the supporting layer, to which supporting layer the inert layer is attached, wherein the inert layer contains at least one hole in the area of the inert layer covering the detection layer, through which at least one hole the liquid sample can be applied to the detection layer, wherein the inert layer is spaced from the detection layer at a distance which allows a capillary liquid transport between the detection layer and the inert layer, and wherein the inert layer is spaced from the supporting layer at a distance such that a capillary liquid transport between the inert layer and the supporting layer is also possible. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of using a diagnostic test carrier comprising a supporting layer;
- a detection layer arranged on the supporting layer, said detection layer carrying reagents, and an inert layer covering and extending beyond the detection layer onto the supporting layer, to which said inert layer is attached, wherein the inert layer contains at least one hole in the area of the inert layer covering the detection layer, through which at least one hole a liquid sample containing analytes to be detected is applied to the detection layer, wherein the inert layer is spaced from the detection layer at a distance which allows a capillary liquid transport between the detection layer and the inert layer, and wherein the inert layer is spaced from the supporting layer at a distance such that a capillary liquid transport between the inert layer and the supporting layer is also possible, comprising
passing the liquid sample through the inert layer to the diagnostic layer, with removal of excess liquid through capillary action, to produce a detectable signal in the diagnostic layer from reaction of the liquid sample with the reagents in the diagnostic layer; and detecting the signal. - View Dependent Claims (26, 27, 28)
- a detection layer arranged on the supporting layer, said detection layer carrying reagents, and an inert layer covering and extending beyond the detection layer onto the supporting layer, to which said inert layer is attached, wherein the inert layer contains at least one hole in the area of the inert layer covering the detection layer, through which at least one hole a liquid sample containing analytes to be detected is applied to the detection layer, wherein the inert layer is spaced from the detection layer at a distance which allows a capillary liquid transport between the detection layer and the inert layer, and wherein the inert layer is spaced from the supporting layer at a distance such that a capillary liquid transport between the inert layer and the supporting layer is also possible, comprising
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29. A diagnostic test carrier, comprising
a supporting layer; -
a detection layer means, arranged on the supporting layer, for determining an analyte in a liquid sample; and an inert layer means, spaced on the supporting layer and on the detection layer means, for holding the test carrier components together, for allowing transport therethrough from the exterior of the test carrier to the detection layer, and for defining a capillary space between the inert layer means and the detection layer means and between the inert layer means and the supporting layer, wherein excess liquid is removed through the capillary space by capillary action.
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Specification