BLOOD CELL COUNTING DEVICE AND METHOD
First Claim
1. A device for use in imaging a liquid sample, the device comprising:
- an inlet for accepting a sample into the device;
a connection conduit;
a detection chamber for optical detection of the sample,wherein the connection conduit connects the inlet to the detection chamber, andwherein the connection conduit contains one or more dry reagents for reaction with the sample as the sample passes through the connection conduit.
2 Assignments
0 Petitions
Accused Products
Abstract
A device for use in imaging a liquid sample comprises an inlet for accepting the sample, a connection conduit and a detection chamber for detection of the sample, preferably optical detection of the sample. The connection conduit connects the inlet to the detection chamber and contains one or more dry reagents for reaction with the sample as the sample passes through the connection conduit. Specific embodiments include devices arranged for treating a blood sample, in particular lysing and staining the sample. The liquid flow may be driven by capillary effect. The device may further include liquid handling structures arranged for centrifugally driven liquid flow, for example to meter a volume of sample and separate the sample into phases by centrifugation.
22 Citations
28 Claims
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1. A device for use in imaging a liquid sample, the device comprising:
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an inlet for accepting a sample into the device; a connection conduit; a detection chamber for optical detection of the sample, wherein the connection conduit connects the inlet to the detection chamber, and wherein the connection conduit contains one or more dry reagents for reaction with the sample as the sample passes through the connection conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for imaging liquid sample, the method comprising, the steps of:
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inserting a sample into a first chamber of a cartridge; causing the sample to flow by capillary action from the first chamber through a connection conduit into a detection chamber; while the sample flows through the connection conduit gradually re-suspending one or more dry reagents in the sample; and capturing at least one image of the sample in the detection chamber. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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- 25. A device for handling liquid, the device comprising a conduit through which a liquid sample can pass, the conduit containing one or more dry reagents for reaction with the sample as the sample passes through the conduit.
Specification