DEVICE FOR DETECTING ANALYTES IN FLUID SAMPLES
First Claim
1. A device for detecting the presence of an analyte in a liquid sample, comprising:
- an opening for introducing the liquid sample into a first chamber for collecting the liquid sample;
a second chamber connected to the first chamber by a passageway and containing a test element;
a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions, the third chamber being divided by the movable member into first and second zones and the first zone comprising a vent hole;
the movable member in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones.
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Accused Products
Abstract
The present invention provides a device (100) for detecting the presence of an analyte in a liquid sample. The device (100) has an opening (115) for introducing the liquid sample into a first chamber (301) for collecting the liquid sample, and a second chamber (601) connected to the first chamber (301) by a passageway (205) and containing a test element. The device also has a third chamber (701) connected to the second chamber (601) by a channel and containing a movable member (311) having first and second positions. The third chamber (701) is divided by the movable member (311) into first (901) and second (902) zones, and the first zone (901) has a vent hole (165). The movable member (311) is in contact with at least one wall of the third chamber (701) to prevent gas communication between the first and second zones (901, 902).
27 Citations
19 Claims
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1. A device for detecting the presence of an analyte in a liquid sample, comprising:
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an opening for introducing the liquid sample into a first chamber for collecting the liquid sample; a second chamber connected to the first chamber by a passageway and containing a test element; a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions, the third chamber being divided by the movable member into first and second zones and the first zone comprising a vent hole; the movable member in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for detecting the presence of an analyte in a liquid sample, comprising:
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introducing a liquid sample into a test device comprising an opening for introducing the liquid sample into a first chamber for collecting the liquid sample; a second chamber connected to the first chamber by a passageway and containing a test element; a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions, the third chamber being divided by the movable member into first and second zones and the first zone comprising a vent hole; the movable member in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones; causing the movable member to move from the first position to the second position and thereby causing a volume of air to be drawn from the second chamber into the third chamber, and thereby causing a volume of liquid to be drawn from the first chamber through the passageway and into the second chamber to contact the test element; detecting the presence of the analyte in the sample. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification