Devices for carrying out chemical and clinical tests, and their use
First Claim
1. A device suitable for collecting a liquid sample and testing said sample by a specific binding assay, said device comprising:
- (a) a test component having a test component surface, said test component being sensitized with an immobilized component of a specific binding pair relevant to said assay;
(b) a handling-piece connected to said test component;
(c) an accessory component having an accessary solid surface which is of substantially complementary shape to said test component surface and removably fixed in slightly spaced apart relationship therewith, to define therebetween a containing space for retaining a liquid sample;
(d) a means for removably fixing said accessory component (c) to said handling-piece (b) or to said test component (a) to maintain said accessory component (c) in said slightly spaced apart relationship with said test component (a); and
(e) at least one aperture to allow a sample of liquid from an external source when said device is held during use in contact with said source to enter said space and be retained in contact with said test component surface.
3 Assignments
0 Petitions
Accused Products
Abstract
A device for carrying out chemical or clinical testing of a liquid sample, for example a urine sample, by a specific binding assay, said device comprising a test compoenent (2) which has a sensitised solid surface (2a) carrying an immobilized component of a specific binding pair relevant to the essay, and a handling piece (1), and characterized in that the test component (2) bearing the sensitized surface (2a) is removably mounted in spaced relationship with a removably mounted accessory component (4) carrying an accessory solid surface (5), and in that there is a space (4a) between the sensitized surface (2a) and the removable accessory component (4) to act as a container for sample liquid, so that when the device is contacted with a sample liquid source or immersed in liquid which is to provide the test sample, liquid of the sample can enter the space (4a) to contact the sensitized surface (2a), and the accessory surface (5) acts to retain and contain sample liquid in contact with the sensitized surface (2a) even after removal of the device from further contact with or immersion in the source of sample liquid, and in that the test component (2) is so formed that after removal of the removable accessory component (4) the sensitized surface (2a) is left exposed and accessible to further treatment liquid such as washing liquid and/or reagents.
81 Citations
20 Claims
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1. A device suitable for collecting a liquid sample and testing said sample by a specific binding assay, said device comprising:
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(a) a test component having a test component surface, said test component being sensitized with an immobilized component of a specific binding pair relevant to said assay; (b) a handling-piece connected to said test component; (c) an accessory component having an accessary solid surface which is of substantially complementary shape to said test component surface and removably fixed in slightly spaced apart relationship therewith, to define therebetween a containing space for retaining a liquid sample; (d) a means for removably fixing said accessory component (c) to said handling-piece (b) or to said test component (a) to maintain said accessory component (c) in said slightly spaced apart relationship with said test component (a); and (e) at least one aperture to allow a sample of liquid from an external source when said device is held during use in contact with said source to enter said space and be retained in contact with said test component surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process for sampling a liquid and testing said sample by a specific binding assay, comprising the steps of:
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(i) contacting a test device with a source of liquid to be sampled, said test device comprising (a) a test component having a test component surface, said test component being sensitized with an immobilized component of a specific binding pair relevant to said assay, (b) a handling piece connected to said test component, and (c) an accessory component which is removably fixed in spaced relationship with said sensitized surface, said accessory component having an accessory solid surface, with said test component surface and said accessory surface defining a space to act as a container for sample liquid, thereby allowing liquid from the source to enter the space as a sample and to contact the sensitized surface; (ii) removing said test device from further contact with said source of liquid, and allowing said accessory surface to retain and contain sample liquid in contact with said sensitized surface; and (iii) separating said fixed removably accessory component from said test component to expose said test component surface. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification