Point-of-care fluidic systems and uses thereof
First Claim
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1. A two-way communication system for monitoring an analyte in a bodily fluid from a subject, comprising:
- a) an external device configured to transmit a protocol to a reader assembly;
b) a fluidic device configured to be inserted into the reader assembly, said fluidic device comprising;
(i) a sample collection unit configured for collecting a sample of bodily fluid that contains an analyte;
(ii) an assay assembly containing reactants that react with said sample of bodily fluid based on the protocol transmitted from said external device to yield a detectable signal indicative of the concentration of said analyte present in said bodily fluid; and
(iii) an identifier that is configured to provide the identity of said fluidic device and is also configured to trigger the transmission of said protocol;
c) the reader assembly configured for two-way communication with the external device, said reader assembly comprising a programmable processor configured to receive said protocol from said external device, wherein said protocol in turn effects a reaction in said assay assembly for generating said detectable signal, wherein said reader further comprises a detection assembly for detecting said detectable signal, and a communication assembly for transmitting said detected signal to said external device, and wherein the external device is configured to (i) compare said concentration of said analyte detected with a reference concentration of said analyte stored in a database, and (ii) generate a subsequent reaction protocol based on said comparison in order to effect a subsequent reaction on a fluidic device for monitoring said analtye.
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Abstract
This invention is in the field of medical devices. Specifically, the present invention provides portable medical devices that allow real-time detection of analytes from a biological fluid. The methods and devices are particularly useful for providing point-of-care testing for a variety of medical applications.
438 Citations
32 Claims
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1. A two-way communication system for monitoring an analyte in a bodily fluid from a subject, comprising:
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a) an external device configured to transmit a protocol to a reader assembly; b) a fluidic device configured to be inserted into the reader assembly, said fluidic device comprising; (i) a sample collection unit configured for collecting a sample of bodily fluid that contains an analyte; (ii) an assay assembly containing reactants that react with said sample of bodily fluid based on the protocol transmitted from said external device to yield a detectable signal indicative of the concentration of said analyte present in said bodily fluid; and (iii) an identifier that is configured to provide the identity of said fluidic device and is also configured to trigger the transmission of said protocol; c) the reader assembly configured for two-way communication with the external device, said reader assembly comprising a programmable processor configured to receive said protocol from said external device, wherein said protocol in turn effects a reaction in said assay assembly for generating said detectable signal, wherein said reader further comprises a detection assembly for detecting said detectable signal, and a communication assembly for transmitting said detected signal to said external device, and wherein the external device is configured to (i) compare said concentration of said analyte detected with a reference concentration of said analyte stored in a database, and (ii) generate a subsequent reaction protocol based on said comparison in order to effect a subsequent reaction on a fluidic device for monitoring said analtye. - View Dependent Claims (2, 3, 4, 6, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31)
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5. A system for detecting a plurality of analytes of varying concentrations in a bodily fluid from a subject, comprising:
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a) an external device configured to transmit a protocol to a reader assembly, wherein said protocol effects a plurality of reactions to be taking place in a fluidic device; b) the fluidic device configured to be inserted into the reader assembly, said fluidic device comprising; (i) a sample collection unit configured to collect a sample of said bodily fluid suspected to contain a plurality of analytes of varying concentrations; (ii) a dilution chamber containing a diluent capable of diluting said sample of said bodily fluid; (iii) an assay assembly containing a plurality of immunoassay reagents, each of which is permitted to react with a sample of said bodily fluid to generate a detectable signal within a range detectable by a reader assembly, and wherein said detectable signal is indicative of the concentration of an analyte of said plurality; and (iv) an identifier that is configured to provide the identity of said fluidic device and is also configured to trigger the transmission of said protocol; c) the reader assembly configured for two-way communication with the external device, said reader assembly comprising a programmable processor configured to receive said protocol from said external device, wherein said protocol from said external device determines degree of dilution performed with said diluent from said dilution chamber, and wherein said reader assembly comprises a detection assembly for detecting said detectable signals; and d) a communication assembly for transmitting said detected signals to said external device. - View Dependent Claims (7, 8, 9, 12, 28, 32)
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Specification