Gordon W Murray
Dentist at Fairfax St, Denver, CO
License number
Colorado 1724
Issued Date
Jun 1, 1931
Renew Date
Jun 9, 1986
Expiration Date
Jun 9, 1986
Type
Dentist
Address
Address
660 Fairfax St, Denver, CO 80224
Professional information
Detecting Environmental Interferent In A Transdermal Alcohol Monitor
US Patent:
8165824, Apr 24, 2012
Filed:
Jul 14, 2009
Appl. No.:
12/503067
Inventors:
Michael Leonard Iiams - Littleton CO, US
Ben Franklin Houston - Denver CO, US
Royce Alan McDonald - Northglenn CO, US
Jeffrey Scott Hawthorne - Bennett CO, US
Mark Henry Wojcik - Littleton CO, US
Gordon William Murray - Lone Tree CO, US
Charles Thomas Champion - Denver CO, US
Ben Franklin Houston - Denver CO, US
Royce Alan McDonald - Northglenn CO, US
Jeffrey Scott Hawthorne - Bennett CO, US
Mark Henry Wojcik - Littleton CO, US
Gordon William Murray - Lone Tree CO, US
Charles Thomas Champion - Denver CO, US
Assignee:
Alcohol Monitoring Systems, Inc. - Littleton CO
International Classification:
G01N 31/00, A61B 5/00
US Classification:
702 24, 600300, 600301
Abstract:
An improvement in monitoring alcohol levels through transdermal testing is provided by detecting if environmental gasses, referred to as interferents, have been introduced into a transdermal vapor sample. An insensible skin perspiration sample may not be completely controlled and can contain interferents from an environmental source rather than the subject. Before testing a skin perspiration sample, the alcohol sensor is sampled and averaged to establish a baseline value. A sample is drawn and presented to the alcohol sensor. The output of the alcohol sensor is monitored to determine the amount of alcohol in the sample. A maximum alcohol sensor value for the transdermal alcohol monitor is set by determining the baseline value when no alcohol is present in the sample. Subsequent baseline values during a reading above the maximum alcohol sensor value indicate that an environmental interferent is present in the alcohol sensor.