Wearable apparatus for detecting a target substance in a liquid
First Claim
Patent Images
1. An artificial fingernail comprising:
- a housing having an arcuate cross section and comprising an internal volume comprising an upper arcuate surface spaced apart from a lower arcuate surface by a thickness, such that the internal volume comprises a substantially arcuate cross-section;
a detection layer comprising a lateral flow assay and disposed within the internal volume, wherein the detection layer comprises upper and lower surfaces having substantially the same arcuate curvature as the upper and lower arcuate surfaces of the internal volume, wherein the detection layer further comprises substantially the same thickness as the internal volume;
a sample port positioned on the housing to permit fluid communication between a fluid external to the housing and the lateral flow assay; and
an absorbent pad comprising first and second ends and a middle region between the first and second ends, wherein the middle region is in fluid communication with the lateral flow assay,wherein the lateral flow assay comprises a first longitudinal axis from a first end to a second end of the lateral flow assay that defines a first flow direction,wherein the absorbent pad comprises a second longitudinal axis from a first point in the middle region to the second end of the absorbent pad, wherein the second longitudinal axis defines a second flow direction, andwherein the first flow direction is substantially opposite the second flow direction.
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Abstract
Described herein are a wearable apparatus and methods for detecting the presence of a targeted substance in a liquid. For example, the wearable apparatus can be a fingernail that detects illicit drugs in a beverage. The wearable apparatus comprises a detection layer comprising an indicator that is configured to display a signal upon the detection of an interaction with the targeted substance. In some examples, the wearable apparatus can include a lateral flow assay.
44 Citations
17 Claims
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1. An artificial fingernail comprising:
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a housing having an arcuate cross section and comprising an internal volume comprising an upper arcuate surface spaced apart from a lower arcuate surface by a thickness, such that the internal volume comprises a substantially arcuate cross-section; a detection layer comprising a lateral flow assay and disposed within the internal volume, wherein the detection layer comprises upper and lower surfaces having substantially the same arcuate curvature as the upper and lower arcuate surfaces of the internal volume, wherein the detection layer further comprises substantially the same thickness as the internal volume; a sample port positioned on the housing to permit fluid communication between a fluid external to the housing and the lateral flow assay; and an absorbent pad comprising first and second ends and a middle region between the first and second ends, wherein the middle region is in fluid communication with the lateral flow assay, wherein the lateral flow assay comprises a first longitudinal axis from a first end to a second end of the lateral flow assay that defines a first flow direction, wherein the absorbent pad comprises a second longitudinal axis from a first point in the middle region to the second end of the absorbent pad, wherein the second longitudinal axis defines a second flow direction, and wherein the first flow direction is substantially opposite the second flow direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification