Assaying test strips having different capture reagents
First Claim
1. A diagnostic test system, comprising:
- a receptacle;
an assay test strip positioned in the receptacle and having multiple capture regions which specifically bind to one or more target analytes and which produce a light when the target analyte is immobilized in the capture region;
a plurality of optical detectors each having a corresponding view of a capture region and adapted to produce an electrical signal at a respective detector output in response to light produced from at least a portion of the capture region;
signal conditioning circuits coupled between respective ones of the detector outputs and respective ones of logic inputs; and
a logic circuit comprising;
a plurality of logic inputs respectively coupled to the signal conditioning circuits; and
transistors respectively coupled to the plurality of logic inputs, wherein the transistors turn on if the logic circuit inputs are charged to a voltage level that exceeds a threshold voltage of the transistors;
wherein the logic circuit is configured to produce at least one output logic signal that corresponds to a logical combination of electrical signals produced from the capture regions and received at the plurality of logic inputs.
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Accused Products
Abstract
In one aspect, a diagnostic test system includes a receptacle, optical detectors, and a logic circuit. Each of the optical detectors has a corresponding view in the receptacle and produces an electrical signal at a respective detector output in response to light from the corresponding view. The logic circuit includes logic inputs that are respectively coupled to the detector outputs and that produce an output logic signal corresponding to a logical combination of signals received at the logic inputs. In another aspect, respective detection signals are produced in response to light received from respective ones of multiple views of the test strip, and at least one output logic signal corresponding to a respective logical combination of the detection signals is generated.
23 Citations
12 Claims
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1. A diagnostic test system, comprising:
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a receptacle; an assay test strip positioned in the receptacle and having multiple capture regions which specifically bind to one or more target analytes and which produce a light when the target analyte is immobilized in the capture region; a plurality of optical detectors each having a corresponding view of a capture region and adapted to produce an electrical signal at a respective detector output in response to light produced from at least a portion of the capture region; signal conditioning circuits coupled between respective ones of the detector outputs and respective ones of logic inputs; and a logic circuit comprising; a plurality of logic inputs respectively coupled to the signal conditioning circuits; and transistors respectively coupled to the plurality of logic inputs, wherein the transistors turn on if the logic circuit inputs are charged to a voltage level that exceeds a threshold voltage of the transistors; wherein the logic circuit is configured to produce at least one output logic signal that corresponds to a logical combination of electrical signals produced from the capture regions and received at the plurality of logic inputs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification