Method and means for detecting blood alcohol in humans by testing vapor above the eye
AssigneeAlcoholism and Drug Addiction Res. Foundation
InventorsHowel G. Giles, Yedy Israel
Life of this patent
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Abstract
A method of detecting ethanol in lachrymal fluid is provided in which an open eye of a subject is enclosed in a chamber to define a space above the eye, an ethanol vapor sensor is introduced into the space of the chamber in a spaced relation to the eye; the sensor is calibrated; and the ethanol vapor concentration in the said lachrymal fluid exuded by the eye is measured.
Claims20
A method of detecting ethanol in lachrymal fluid which comprises enclosing an open eye of a subject in a chamber to define a space above the eye, providing an ethanol vapor sensor into the space of the chamber in a spaced relation to the eye;
- calibrating said sensor;
- and measuring the ethanol concentration in space above said lachrymal fluid exuded by the eye.
An apparatus for detecting alcohol levels in humans comprising:
- an eyepiece contoured to form a vapor confining chamber over the eye of a human subject;
- and
- an ethanol detecting sensor connected to said eyepiece to sample vapor from within said chamber.
A method of determining the blood alcohol level of a person comprising the steps of:
- sampling vapors of lachrymal fluid from an eye of said person;
- and
- measuring the ethanol vapor content of said sampled lachrymal fluid vapor.
Dependencies are inferred from the claim text.