Capillary flow device
First Claim
1. A method for detecting agglutination of particles, which comprises:
- adding a fluid sample to a capillary passageway in a cartridge containing a diagnostic reagent that interacts with said sample to produce an agglutination system comprising said particles;
passing a beam of light through said sample in said capillary passageway while said particles are in motion relative to said beam; and
detecting in said fluid the presence of agglutinated particles.
4 Assignments
0 Petitions
Accused Products
Abstract
Novel methods and devices are provided involving at least one chamber, at least one capillary, and at least one reagent involved in a system providing for a detectable signal. As appropriate, the devices provide for measuring a sample, mixing the sample with reagents, defining a flow path, and reading the result. Of particular interest is the use of combinations of specific binding pair members which result in agglutination information, where the resulting agglutination particles may provide for changes in flow rate, light patterns of a flowing medium, or light absorption or scattering. A fabrication technique particularly suited for forming internal chambers in plastic devices is also described along with various control devices for use with the basic device.
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Citations
3 Claims
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1. A method for detecting agglutination of particles, which comprises:
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adding a fluid sample to a capillary passageway in a cartridge containing a diagnostic reagent that interacts with said sample to produce an agglutination system comprising said particles; passing a beam of light through said sample in said capillary passageway while said particles are in motion relative to said beam; and detecting in said fluid the presence of agglutinated particles. - View Dependent Claims (2, 3)
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Specification