Method and apparatus for determination of chemical species in perspiration
First Claim
1. A dermal patch to be worn on the skin of a subject mammal for determining the presence of an analyte in said subject'"'"'s perspiration, said patch comprising an absorbent material, said absorbent material having a first and second side, said first side of said absorbent material being adapted to be in fluid communication with the skin of said subject for collecting non-aqueous components of perspiration which diffuse through the skin of said subject, and an adhesive means for securing said patch to the skin of the subject, wherein said absorbent material can be dissolved with a solvent into a solution such that the dissolved absorbent material and solution do not interfere with the analysis of said components of perspiration.
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Accused Products
Abstract
A dermal patch to be worn on the skin for increasing the concentration of an analyte expressed through the skin in perspiration to a conveniently measurable level. Included are patches and methods of using such patches to determine the quantity of an analyte in a given volume of perspiration, to determine a subject'"'"'s sensitivity to an allergen, to allow an analyte to be detected with conventional detection systems, and to dissolve the structural components of a patch to facilitate analyte detection.
61 Citations
43 Claims
- 1. A dermal patch to be worn on the skin of a subject mammal for determining the presence of an analyte in said subject'"'"'s perspiration, said patch comprising an absorbent material, said absorbent material having a first and second side, said first side of said absorbent material being adapted to be in fluid communication with the skin of said subject for collecting non-aqueous components of perspiration which diffuse through the skin of said subject, and an adhesive means for securing said patch to the skin of the subject, wherein said absorbent material can be dissolved with a solvent into a solution such that the dissolved absorbent material and solution do not interfere with the analysis of said components of perspiration.
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13. A method of detecting a metabolite of an analyte contained in the perspiration of a subject mammal, comprising:
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a) applying a dermal patch including an absorbent material to the skin of said subject, whereby said absorbent material is in fluid communication with the skin of said subject; b) collecting an analyte in the perspiration of said subject in said absorbent material; c) chemically modifying said analyte which has been collected on said absorbent material, thereby producing a metabolite of said analyte; and d) detecting said metabolite of said analyte. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for determining the presence of an analyte in perspiration of a subject mammal, comprising the steps of:
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applying a dermal patch to the skin of said subject; accumulating perspiration containing said analyte from said subject with said dermal patch, wherein said patch comprises an absorbent material for accumulating said analyte, and wherein said absorbent material can be dissolved by a solvent into a solution; dissolving said absorbent material containing said analyte with a solvent, wherein said solvent does not interfere with the detection of said analyte; and detecting said analyte in said solution. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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- 32. A dermal patch to be worn on the skin of a subject mammal for determining the presence of an analyte in said subject'"'"'s perspiration, said patch comprising an absorbent material, said absorbent material being free of activated charcoal and having a first and second side, said first side of said absorbent material being adapted to be in fluid communication with the skin of said subject for collecting non-aqueous components of perspiration which diffuse through the skin of said subject, and an adhesive means for securing said patch to the skin of the subject, wherein said absorbent material can be dissolved completely with a solvent into a solution such that the dissolved absorbent material and solution do not interfere with the analysis of said components of perspiration.
Specification