Detachable-element assay device
First Claim
1. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
- (a) a first opposable component comprising;
(i) a first panel;
(ii) a second panel mounted on the first panel parallel to the first panel, the second panel comprising an opening forming a first receptacle for holding a sample collection device; and
(iii) a second receptacle for insertion of the test strip formed by the first panel and the second panel, the insertion occurring during performance of an assay; and
(b) a second opposable component hingedly attached to the first opposable component;
wherein the first and second opposable components are pressed together into operable contact to express fluid from the sample collection device to the inserted test strip thereby applying the sample to the test strip, the test strip comprising at least one assay reagent which reacts with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample.
2 Assignments
0 Petitions
Accused Products
Abstract
An assay device for detection or determination of an analyte in a sample uses either removably attachable components or hinged panels to provide greater flexibility and reduce manufacturing and storage costs. In one embodiment of the device, the device comprises: (1) a first opposable component including:(a) a first panel; (b) a second panel mounted on the first panel generally parallel to the first panel with space between the first and second panel, the second panel having an opening forming a first receptacle for a sample collection device; and (c) a second receptacle for a test strip formed by the first panel and the second panel; and (2) a second opposable component hingedly attached to the first opposable component. In this device, the first and second opposable components can be brought into operable contact so that fluid is expressed from the sample collection device and applied to the test strip for detection or determination of an analyte by a test performed on the test strip. Other embodiments of devices are included, as well as test kits and method of use of the devices.
363 Citations
85 Claims
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1. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
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(a) a first opposable component comprising; (i) a first panel; (ii) a second panel mounted on the first panel parallel to the first panel, the second panel comprising an opening forming a first receptacle for holding a sample collection device; and (iii) a second receptacle for insertion of the test strip formed by the first panel and the second panel, the insertion occurring during performance of an assay; and (b) a second opposable component hingedly attached to the first opposable component; wherein the first and second opposable components are pressed together into operable contact to express fluid from the sample collection device to the inserted test strip thereby applying the sample to the test strip, the test strip comprising at least one assay reagent which reacts with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
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(a) a first opposable component comprising; (i) a first panel; (ii) a second panel mounted on the first panel parallel to the first panel, the second panel comprising an opening forming a first receptacle for holding a swab; and (iii) a second receptacle for insertion of the test strip formed by the first panel and the second panel, the insertion occurring during performance of an assay; and (b) a second opposable component hingedly attached to the first opposable component; wherein the first and second opposable components are pressed together into operable contact to express fluid from the swab to the inserted test strip thereby applying the sample to the test strip, the test strip comprising at least one assay reagent which reacts with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample.
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11. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
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(a) a first opposable component comprising; (i) a first panel; (ii) a second panel mounted on the first panel parallel to the first panel, the second panel comprising an opening forming a first receptacle for holding a sample collection device; and (iii) a second receptacle for insertion of the test strip formed by the first panel and the second panel, the insertion occurring during performance of an assay; and
(b) a second opposable component hingedly attached to the first opposable component;wherein the first and second opposable components are pressed together into operable contact to express fluid from the sample collection device to the inserted test strip thereby applying the sample to the test strip, the test strip comprising at least one assay reagent which reacts with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample, wherein the test strip comprises a chromatographic medium comprising a first end and a second end such that when the test strip is inserted into the second receptacle and when the first and second opposable components are brought into said operable contact, the fluid expressed from the sample collection device is applied to the first end of the chromatographic medium, wherein the chromatographic medium further comprises a detection zone comprising an immobilized specific binding partner for the analyte and wherein the second opposable component further comprises an aperture for viewing of the detection zone.
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12. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
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(a) a first opposable component comprising; (i) a first panel; and (ii) an opening forming a first receptacle for holding a sample collection device in the first panel; (b) a second opposable component hingly attached to the first panel of the first opposable component, the second opposable component comprising an aperture; and (c) a third opposable component hingedly attached to the second opposable component, the third opposable component comprising a second receptacle for insertion of the test strip, the insertion occurring during performance of an assay; wherein the second and third opposable component are foldable and the first and second opposable components are pressed together into operable contact when the second opposable component has been folded over the third opposable component to express fluid through said aperture from the sample collection device to the inserted test strip thereby applying the sample to the test strip, the test strip comprising at least one assay reagent which reacts with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
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(a) a first module comprising; (i) a first panel, the first panel comprising a receptacle for holding a sample collection device; (ii) a second panel hingedly attached to the first panel, the second panel comprising an aperture for viewing of a portion of the test strip; and (b) a second module comprising a second receptacle for insertion of the test strip, the insertion occurring during performance of an assay, the second module reversibly hingedly attachable to the second panel of the first module; wherein, when the second module is attached to the first module, the second module is folded over the second panel of the first module, and the second module and or second panel of the first module are then folded together over the first panel of the first module to press to the second module and the first panel of the first module into operable contact to express fluid from the sample collection device thereby applying the sample to the test strip, the test strip comprising at least one assay reagent which reacts with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. An assay device for detection or determination of an analyte in a liquid sample comprising:
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(a) a first support panel comprising a sample application zone; (b) a second support panel hingedly attached to the first support panel and comprising an aperture for viewing a test strip, the second support panel comprising fist, second, third and fourth sides with the first and third sides being parallel and the second and fourth sides being parallel, with the first side being hingedly attached to the first support panel, (c) a third support panel hingedly attached to the third side of the second support panel, the third support panel comprising first and second surfaces with the test strip attached to the second surface, the test strip comprising an immobilized specific binding partner for the analyte; (d) a first reaction panel hingedly attached to the second side of the second support panel comprising a first reaction pad comprising a resolubilizable first reagent to be applied to a first portion of the test strip, wherein the first reagent is (i) an extraction reagent for releasing the analyte for the sample of (ii) a specific binding partner for the analyte or the analyte, coupled to a label which produces a detectable signal which indicates the presence or amount of the analyte in the sample; (e) a second reaction panel hingedly attached to the fourth side of the second support panel comprising a second reaction pad comprising a resolubilizable second reagent to be applied to a second portion of the test strip upstream from the first portion, wherein the second reagent is (i) the labeled specific binding partner for the analyte or the labeled analyte, (ii) a reagent which reacts with the label to produce or amplify the detectable signal or (iii) a buffer or salt; wherein the third support panel is folded over the second support panel and the combination of the second and third support panels is then folded over the first support panel such that the test strip is in operable contact with the sample application zone, and wherein, when the third support panel is folded over the second support panel, the first reaction panel is in operable contact with the first portion of the test strip, and when the second reaction panel is folded over the third support panel, the second reaction pad is in operable contact with the second portion of the test strip. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An assay device for detection or determination of an analyte in a liquid sample comprising:
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(a) a first module comprising; (i) a first support panel comprising a sample application zone; and (ii) a second support panel comprising an aperture therein for viewing a test strip and comprising first, second, third and fourth sides with the first and third sides and second and fourth sides being parallel, with the first side of the second support panel being hingedly attached to the first support panel; (b) a second module comprising a third support panel, the third support panel comprising said test strip, the second module being reversibly hingedly attached to the third side of the second support panel of the first module, the test strip comprising an immobilized specific binding partner for the analyte; (c) a third module comprising a first reaction panel comprising a first reaction pad, said first reaction panel reversibly hingedly attached to the second side of the second support panel of the first module, the first reaction pad comprising a resolubilizable first reagent to be applied to first portion of the test strip wherein the first reagent is (i) an extraction reagent for releasing the analyte from the sample or (ii) a specific binding partner for the analyte or the analyte, coupled to a label which produces a detectable signal which indicates the presence or amount of the analyte in the sample; and (d) a fourth module comprising a second reaction panel comprising a second reaction pad, said second reaction panel reversibly hingedly attached to the fourth side of the second support panel of the first module, the second reaction pad comprising a resolubilizable second reagent to be applied to a second portion test strip upstream of the first portion, wherein the second reagent is (i) the labeled specific binding partner for the analyte or the labeled analyte;
(ii) a reagent which reacts with the label to produce or amplify the detectable signal or (iii) a buffer or salt;wherein the second module is folded over the second support panel of the first module, and the second module and the second support panel of the first module are then folded over the first support panel of the first module the sample application zone is pressed into operable contact with the test strip; and when the second module is folded over the second support panel of the first module, and the third module is folded over the second support panel of the first module and the second module to press the first reaction pad into said operable contact with the first portion of the test strip to apply the first reagent to the test strip and the fourth module is folded over the second support panel of the first module and the second module to press the second reaction pad into said operable contact with the second portion of the test strip to apply the second reagent to the test strip. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. An assay device for use with an insertable test strip for detection or determination of an analyte in a liquid sample, comprising:
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(a) a first support panel comprising a sample application zone; (b) a second support panel hingedly attached to the first support panel and comprising an aperture for viewing of the test strip, the second support panel comprising first, second, third and fourth sides with the first and third sides being parallel and the second and fourth sides being parallel, with the first side being hingedly attached to the first support panel; (c) a third support panel hingedly attached to the third side of the second support panel, the third support panel comprising first and second surfaces and comprising a receptacle for insertion of the test strip such that, when the test strip is inserted into the receptacle, a surface of the test strip is accessible from the second surface of the third support panel; (d) a first reaction panel hingedly attached to a second side of the second support panel, the first reaction panel comprising a first reaction pad comprising a resolubilizable first reagent to be applied to a first portion of the test strip, wherein the first reagent is (i) an extraction reagent for releasing the analyte from the sample or (ii) a specific binding partner for the analyte or the analyte, coupled to a label which produces a detectable signal which indicates the presence or amount of the analyte in the sample; and (e) a second reaction panel hingedly attached to the fourth side of the second support panel, the second action panel comprising a second reaction pad comprising a resolubilizable second reagent applied to a second portion of the test strip upstream from the first portion wherein the second reagent is (i) the labeled specific binding partner for the analyte or the labeled analyte;
(ii) a reagent which reacts with the label to produce or amplify the detectable signal or (iii) a buffer or salt;wherein the third support panel is folded over the second support panel and the combination of the second and third support panels is then folded over the first support panel, pressing the test strip into operable contact with the sample application zone, and wherein, when the third support panel is folded over the second support panel, the first reaction panel is folded over the third support panel so that the first reaction pad is pressed into operable contact with the first portion of the test strip to apply the first reagent to the test strip and the second reaction panel is folded over the third support panel so that the second reaction is pressed into operable contact with the second portion of the test strip to apply the second reagent to the test strip, the test strip comprising an immobilized specific binding partner for the analyte. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64)
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- 54. The assay device of 53 wherein the test strip comprises a chromatographic medium comprising a first end, and a second end comprising the first portion of the test strip and the second end comprising the second portion of the test strip.
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65. An assay device for use with an insertable test strip for detecting or determining an analyte in a liquid sample, comprising:
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(a) a first module comprising; (i) a first support panel comprising a sample application zone; and (ii) a second support panel comprising an aperture therein for viewing the test strip and comprising first, second, third, and fourth sides with the first and third sides and the second and fourth sides being panel, the second support panel being hingedly attached to the first support panel via the first side of the second support panel; (b) a second module comprising a third support panel, the third support panel comprising first and second surfaces and comprising a receptacle for insertion of the test strip such that, when the test strip is inserted into the receptacle, a surface of the test strip is accessible from the second surface of the third support panel, the second module being reversibly hingedly attached to the third side of the second support panel of the first module; (c) a third module comprising a first reaction panel comprising a first reaction pad comprising a resolubilizable first reagent to be applied to a first portion of the test strip, the third module being reversibly hingedly attached to the second side of the second support panel of the first module, wherein the first reagent is (i) an extraction reagent for releasing the analyte from the sample for (ii) a specific binding partner for the analyte or the analyte, coupled to a label which produces a detectable signal which indicates the presence or amount of the analyte in the sample; and (d) a fourth module comprising a second reaction panel comprising a second reaction pad comprising a second reagent applied to the test strip, the fourth module being reversibly hingedly attached to the second side of the second support panel of the first module, wherein the second reagent is (i) the labeled specific binding partner for the analyte or the labeled analyte;
(ii) a reagent which reacts with the label to produce or amplify the detectable signal or (iii) a buffer or salt;wherein the second module is folded over the second support panel of the first module, the second module and the second support panel of the first module are then folded over the first support panel of the first module such that the sample application zone is pressed into operable contact with the test strip; and
when the third module is folded over the second support panel of the first module and the second module, and the fourth module is folded over the second support panel of the first module and the second module such that the first reaction pad is pressed into operable contact with the first portion of the test strip to apply the first reagent to first portion of the test strip and such that the second reaction pad is pressed into operable contact with the second portion of the test strip to apply the second reagent to the second portion of the test strip, the test strip comprising reacts with the analyte to produce a detectable signal which indicates the presence or amount of an immobilized specific binding partner for the analyte. - View Dependent Claims (66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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77. An assay device for use with an insertable test strip for detection or determination of an analyte in a sample comprising:
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(a) a first opposable component comprising; (i) a first panel; (ii) a second panel mounted on the first panel parallel to the first panel with space between the first and the second panel, the second panel comprising an opening forming a first receptacle for holding a sample collection device; and (iii) a second receptacle for insertion of the test strip formed by the first panel and the second panel, the insertion occurring during performance of an assay, the second receptacle comprising slidable contact means to hold the test strip slidably in one of two positions, a first position in which the test strip is in operable contact with the sample collection device placed in the first receptacle and a second position in which the test strip is not in operable contact with the sample collection device; and (b) a second opposable component hingedly attached to the first opposable component;
wherein the first and second opposable components are pressed together into operable contact to express fluid from the sample collection device to the inserted test strip thereby applying the sample to the test strip for the detection or determination of the analyte, the test strip comprising at least one assay reagent which react with the analyte to produce a detectable signal which indicates the presence or amount of the analyte in the sample. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85)
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Specification