Drug abuse detection
First Claim
1. A non-invasive method of detecting drug ingestion by a subject comprising the steps of:
- (a) non-invasively establishing a plurality of reference waveforms by separately recording time-varying fluctuations in cornea-retinal potential (CRP) and/or brainwaves for each of a series of selected drugs administered to an individual who has been pre-examined for freedom from drugs, said recordings for each drug in the series being made in a standardized set of at-rest conditions;
(b) non-invasively measuring the subject'"'"'s waveform, by recording time-varying fluctuations in cornea-retinal potential (CPR) and/or brainwaves, for each of the at-rest conditions of said standardized set; and
(c) comparing the subject'"'"'s measured waveforms with said plurality of reference waveforms to ascertain the existence vel non of any correlation therebetween, thereby determining the presence or absence in said subject of any of said selected drugs.
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Accused Products
Abstract
A non-invasive method and an apparatus for detecting drug ingestion based upon the effects of drugs on corneo-retinal potential and/or brainwaves. The method comprises the steps of (a) determining a plurality of reference waveforms, each including corneo-retinal potential (CRP) and/or brainwave waveforms corresponding respectively to a plurality of drugs, (b) recording a subject'"'"'s waveform while the subject is subjected to a static positional test, and (c) comparing the subject'"'"'s measured waveforms with the reference waveforms to determine which drug or combination of drugs was ingested by the subject. The apparatus includes an improved electronystagmograph (ENG) machine modified to include longer leads and increased gain (amplification) than typically used for conventional applications.
25 Citations
11 Claims
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1. A non-invasive method of detecting drug ingestion by a subject comprising the steps of:
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(a) non-invasively establishing a plurality of reference waveforms by separately recording time-varying fluctuations in cornea-retinal potential (CRP) and/or brainwaves for each of a series of selected drugs administered to an individual who has been pre-examined for freedom from drugs, said recordings for each drug in the series being made in a standardized set of at-rest conditions; (b) non-invasively measuring the subject'"'"'s waveform, by recording time-varying fluctuations in cornea-retinal potential (CPR) and/or brainwaves, for each of the at-rest conditions of said standardized set; and (c) comparing the subject'"'"'s measured waveforms with said plurality of reference waveforms to ascertain the existence vel non of any correlation therebetween, thereby determining the presence or absence in said subject of any of said selected drugs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification