WO2022139945A8 - A comprehensive breath test that confirms recent use of inhaled cannabis within the impairment window - Google Patents

A comprehensive breath test that confirms recent use of inhaled cannabis within the impairment window Download PDF

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Publication number
WO2022139945A8
WO2022139945A8 PCT/US2021/056591 US2021056591W WO2022139945A8 WO 2022139945 A8 WO2022139945 A8 WO 2022139945A8 US 2021056591 W US2021056591 W US 2021056591W WO 2022139945 A8 WO2022139945 A8 WO 2022139945A8
Authority
WO
WIPO (PCT)
Prior art keywords
impairment
window
cannabis
recent use
confirms
Prior art date
Application number
PCT/US2021/056591
Other languages
French (fr)
Other versions
WO2022139945A1 (en
Inventor
Michael W. Degregorio
Gregory T. WURZ
Chiao-Jung KAO
Edward J. MONTOYA
Original Assignee
RCU Labs, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCU Labs, Inc. filed Critical RCU Labs, Inc.
Priority to US18/265,541 priority Critical patent/US20240027479A1/en
Publication of WO2022139945A1 publication Critical patent/WO2022139945A1/en
Publication of WO2022139945A8 publication Critical patent/WO2022139945A8/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/94—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving narcotics or drugs or pharmaceuticals, neurotransmitters or associated receptors
    • G01N33/948—Sedatives, e.g. cannabinoids, barbiturates

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Hematology (AREA)
  • Chemical & Material Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Biomedical Technology (AREA)
  • Immunology (AREA)
  • Microbiology (AREA)
  • Medicinal Chemistry (AREA)
  • Biotechnology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Anesthesiology (AREA)
  • Food Science & Technology (AREA)
  • Cell Biology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The present invention provides a method for determining recent use of cannabis, including recent use within the impairment window, following administration through inhalation, the method comprising the collection of samples of exhaled breath and whole blood separated by known intervals of time, analyzing them using appropriate analytical methods, and then calculating pharmacologic parameters associated with recent cannabis use. In particular embodiments, the method is used by employers in the routine monitoring of workplace drug policy compliance among employees and in workplace accident investigations. In some embodiments, the method is utilized by law enforcement personnel to gather evidence in driving under the influence investigations.
PCT/US2021/056591 2018-04-23 2021-10-26 A comprehensive breath test that confirms recent use of inhaled canabis within the impairment window WO2022139945A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/265,541 US20240027479A1 (en) 2018-04-23 2021-10-26 A Comprehensive Breath Test that Confirms Recent Use of Inhaled Cannabis within the Impairment Window

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063128547P 2020-12-21 2020-12-21
US63/128,547 2020-12-21

Publications (2)

Publication Number Publication Date
WO2022139945A1 WO2022139945A1 (en) 2022-06-30
WO2022139945A8 true WO2022139945A8 (en) 2022-07-28

Family

ID=82160070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2021/056591 WO2022139945A1 (en) 2018-04-23 2021-10-26 A comprehensive breath test that confirms recent use of inhaled canabis within the impairment window

Country Status (1)

Country Link
WO (1) WO2022139945A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0909608D0 (en) * 2009-06-04 2009-07-15 Oxtox Ltd Electrochemical assays
US9291550B1 (en) * 2012-04-12 2016-03-22 Nicholas Wing Device and method for instantaneous drug testing in the field
WO2016161083A1 (en) * 2015-03-31 2016-10-06 Theranos, Inc. Methods, devices, systems, and kits for automated blood collection by fingerstick
US20210393197A1 (en) * 2018-04-23 2021-12-23 RCU Labs, Inc. Pharmacodynamic Model for Determining Last Use of Inhaled and Oral Cannabis Products
WO2020167828A1 (en) * 2019-02-11 2020-08-20 Giner, Inc. Method and system for detection and/or quantification of delta-9-tetrahydrocannabinol in exhaled breath

Also Published As

Publication number Publication date
WO2022139945A1 (en) 2022-06-30

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