Method and means for detecting blood alcohol in humans by testing vapor above the eye
First Claim
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1. 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.
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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.
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Citations
20 Claims
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1. 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. - View Dependent Claims (2, 3, 4)
- calibrating said sensor; and
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5. An apparatus for detecting alcohol levels in humans comprising:
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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. - View Dependent Claims (6, 7, 8, 9)
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10. A method of determining the blood alcohol level of a person comprising the steps of:
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sampling vapors of lachrymal fluid from an eye of said person; and measuring the ethanol vapor content of said sampled lachrymal fluid vapor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification