Devices and methods for molecular diagnostic testing
First Claim
1. A method of detecting a target nucleic acid using a stand-alone molecular diagnostic test device without any external instrument, comprising:
- conveying an input sample from a sample preparation module to an amplification module, the sample preparation module and the amplification module each fixedly coupled within a housing of the stand-alone molecular diagnostic test device, the housing having an overall size of less than about 260 cubic centimeters, the amplification module defining a reaction volume and including a heater;
heating the input sample within at least a portion of the reaction volume via the heater to amplify the target nucleic acid molecule within the input sample thereby producing an output solution containing a target amplicon; and
reacting within a detection module within the housing each of A) the output solution and B) a reagent formulated to produce a signal that indicates a presence of the target amplicon within the output solution, the detection module including a detection surface configured to capture the target amplicon to produce the signal,the stand-alone molecular diagnostic test device producing the signal in less than about 25 minutes after the input sample is conveyed from the sample preparation module.
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Abstract
A hand-held molecular diagnostic test device includes a housing, an amplification (or PCR) module, and a detection module. The amplification module is configured to receive an input sample, and defines a reaction volume. The amplification module includes a heater such that the amplification module can perform a polymerase chain reaction (PCR) on the input sample. The detection module is configured to receive an output from the amplification module and a reagent formulated to produce a signal that indicates a presence of a target amplicon within the input sample. The amplification module and the detection module are integrated within the housing.
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Citations
26 Claims
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1. A method of detecting a target nucleic acid using a stand-alone molecular diagnostic test device without any external instrument, comprising:
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conveying an input sample from a sample preparation module to an amplification module, the sample preparation module and the amplification module each fixedly coupled within a housing of the stand-alone molecular diagnostic test device, the housing having an overall size of less than about 260 cubic centimeters, the amplification module defining a reaction volume and including a heater; heating the input sample within at least a portion of the reaction volume via the heater to amplify the target nucleic acid molecule within the input sample thereby producing an output solution containing a target amplicon; and reacting within a detection module within the housing each of A) the output solution and B) a reagent formulated to produce a signal that indicates a presence of the target amplicon within the output solution, the detection module including a detection surface configured to capture the target amplicon to produce the signal, the stand-alone molecular diagnostic test device producing the signal in less than about 25 minutes after the input sample is conveyed from the sample preparation module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of detecting a nucleic acid using a stand-alone molecular diagnostic test device without any external instrument, comprising:
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conveying a biological sample into a sample preparation module within the stand-alone molecular diagnostic test device; and actuating the stand-alone molecular diagnostic test device to cause the stand-alone molecular diagnostic test device to; heat the biological sample via a heater of a lysis module within the stand-alone molecular diagnostic test device to lyse a portion of the biological sample to produce an input sample; convey the input sample to an amplification module, the amplification module fixedly coupled within the stand-alone molecular diagnostic test device, the amplification module defining a reaction volume; heat the input sample within the reaction volume through at least 30 thermal cycles to amplify the nucleic acid molecule within the input sample thereby producing an output solution containing a target amplicon; and react within a detection module within the stand-alone molecular diagnostic test device each of A) the output solution and B) a reagent formulated to produce a signal that indicates a presence of the target amplicon within the output solution, the detection module including a detection surface configured to capture the target amplicon to produce the signal, the stand-alone molecular diagnostic test device producing, without any external instrument, the signal in less than about 25 minutes after the actuating; reading a result associated with the signal; and discarding, after the reading, the stand-alone molecular test device. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification