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US4595011A Expired / Lapsed US ⏱️ 0.0 years remaining

Transdermal dosimeter and method of use

Assignee: Individual
•
Filing: 1984-07-18
•
Granted: 1986-06-17
•
Expires: 2004-07-18
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Abstract

Abstract A transdermal dosimeter, a device used to monitor exposure to chemical agents is disclosed. The device is attached to the skin surface and functions by causing the uptake of compounds that are excreted through the skin.

Inventors

  • 👤 Michael Phillips

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:35
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22; A; A61; A61B; A61B10/00; A61B10/0045; A61B10/0064; A61B5/00; A61B5/145; A61B5/14507; A61B5/1451; A61B5/14514; A61B5/41; A61B5/411; A61B5/42; A61B5/4261; A61B5/4266; A61B5/44; A61B5/441; A61B5/48; A61B5/4869; A61B5/4881; A61B2010/0009

Claims Analysis

Total Claims: 33
Claim 1
Independent Claim 122 words
A transdermal dosimeter for use in a diagnostic test which comprises: (a) a sealed container constructed of chemically intert, flexible, fluid-tight, adhesive material; (b) a dermal contact bridge in the container which comprises a fluid component and a support means component for supporting the fluid component within the container; (c) a collecting component means in the container and in contact with the dermal contact bridge, for providing storage for fluid substances collected from the dermal contact bridge, said collecting component means being impregnated with an osmotically active crystalloid material; and (d) a process component in the container made of fluid absorbent material containing a chemical reagent which reacts with the stored substances, said process component being in contact with the collecting component.
Claim 2
Dependent Claim 122 words
A transdermal dosimeter for use in a diagnostic test which comprises: (a) a sealed container constructed of chemically intert, flexible, fluid-tight, adhesive material; (b) a dermal contact bridge in the container which comprises a fluid component and a support means component for supporting the fluid component within the container; (c) a collecting component means in the container and in contact with the dermal contact bridge, for providing storage for fluid substances collected from the dermal contact bridge, said collecting component means being impregnated with an osmotically active crystalloid material; and (d) a process component in the container made of fluid absorbent material containing a chemical reagent which reacts with the stored substances, said process component being in contact with the collecting component.
Claim 3
Dependent Claim 10 words
The apparatus of claim 1 wherein the fluid is aqueous.
Claim 4
Dependent Claim 13 words
The apparatus of claim 2 wherein the fluid contains an osmotically active solute.
Claim 5
Dependent Claim 10 words
The apparatus of claim 2 wherein the fluid is saline.
Claim 6
Dependent Claim 12 words
The apparatus of claim 2 wherein the fluid is saturated with NaCl.
Claim 7
Dependent Claim 11 words
The apparatus of claim 5 wherein the fluid is mineral oil.
Claim 8
Dependent Claim 11 words
The apparatus of claim 5 wherein the fluid is vegetable oil.
Claim 9
Dependent Claim 11 words
The apparatus of claim 7 wherein the fluid is polyethylene glycol.
Claim 10
Dependent Claim 10 words
The apparatus of claim 1 wherein the fluid is lipid.
Claim 11
Dependent Claim 10 words
The apparatus of claim 1 wherein the fluid is organic.
Claim 12
Dependent Claim 13 words
The apparatus of claim 1 wherein the support means is of cellulose-type material.
Claim 13
Dependent Claim 16 words
The apparatus of claim 11 wherein the support means is a high molecular weight polyethylene glycol.
Claim 14
Dependent Claim 12 words
The apparatus of claim 11 wherein the support means is a gel.
Claim 15
Dependent Claim 13 words
The apparatus of claim 1 wherein the support means is an inert polymer.
Claim 16
Dependent Claim 14 words
The apparatus of claim 1 wherein the support means is a viscous organic compound.
Claim 17
Dependent Claim 14 words
The apparatus of claim 1 wherein the processing component contains a non-specific binding agent.
Claim 18
Dependent Claim 12 words
The apparatus of claim 1 wherein the processing component contains activated charcoal.
Claim 19
Dependent Claim 14 words
The apparatus of claim 1 wherein the processing component contains a specific binding agent.
Claim 20
Dependent Claim 12 words
The apparatus of claim 1 wherein the processing component contains an antibody.
Claim 21
Dependent Claim 27 words
The apparatus of claim 1 wherein the chemical reagent include an enzyme and chemical agents to form colored compounds from the products of the enzymically catalyzed reactions.
Claim 22
Dependent Claim 27 words
The apparatus of claim 1 wherein the chemical reagent include chemical compounds which can react with substances present in human tissue fluids to yield a colored product.
Claim 23
Dependent Claim 12 words
The appratus of claim 1 wherein the processing component contains silver nitrate.
Claim 24
Dependent Claim 20 words
The apparatus of claim 1 wherein the dermal contact bridge and the collecting component are combined into a single layer.
Claim 25
Dependent Claim 17 words
The apparatus of claim 23 wherein the single layer comprises a solid absorptive matrix pre-soaked in fluid.
Claim 26
Dependent Claim 14 words
The apparatus of claim 23 wherein the single layer comprises a semi-solid absorptive matrix.
Claim 27
Dependent Claim 23 words
The apparatus of claim 1 wherein the dermal contact bridge, the collecting component, and the processing component are combined into a single layer.
Claim 28
Dependent Claim 11 words
The apparatus of claim 26 wherein a binding agent is incorporated.
Claim 29
Dependent Claim 12 words
The apparatus of claim 27 wherein the binding material is activated charcoal.
Claim 30
Dependent Claim 12 words
The apparatus of claim 27 wherein the binding material is a resin.
Claim 31
Dependent Claim 12 words
The apparatus of claim 26 wherein a chemical conversion agent is incorporated.
Claim 32
Dependent Claim 146 words
A diagnostic test, which comprises the steps of: providing a dosimeter which comprises; (a) a sealed container constructed of chemically inert, flexible, fluid-tight, adhesive material; (b) a dermal contact bridge which comprises a fluid component and a support means component for supporting the fluid component within the container; (c) a collecting component means in the container and in contact with the dermal contact bridge, for providing storage for fluid substances collected from the dermal contact bridge, said collecting component means being impregnated with an osmotically active crystalloid material; and (d) a process component in the container made of fluid absorbent material containing a chemical reagent which reacts with the stored substances, said process component being in contact with the collecting component; affixing the dosimeter to the skin of a test subject; removing the dosimeter after a period of time; and determining the results of the test.
Claim 33
Dependent Claim 146 words
A diagnostic test, which comprises the steps of: providing a dosimeter which comprises; (a) a sealed container constructed of chemically inert, flexible, fluid-tight, adhesive material; (b) a dermal contact bridge which comprises a fluid component and a support means component for supporting the fluid component within the container; (c) a collecting component means in the container and in contact with the dermal contact bridge, for providing storage for fluid substances collected from the dermal contact bridge, said collecting component means being impregnated with an osmotically active crystalloid material; and (d) a process component in the container made of fluid absorbent material containing a chemical reagent which reacts with the stored substances, said process component being in contact with the collecting component; affixing the dosimeter to the skin of a test subject; removing the dosimeter after a period of time; and determining the results of the test.

References Cited (Backward Citations)

US3216411A Cited
US4224125A Cited
US4220158A Cited
US4329999A Cited
US4444193A Cited
US4454007A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-06-16 1989-12-16 1990-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-06-16 1993-12-16 1994-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-06-16 1997-12-16 1998-06-17 $7700.00 Window Closed / Lapsed

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