Cannabix Files Patent for Proprietary Laboratory Drug Analysis Device

The patent covers the detection of delta-9 THC in breath.

Cannabix Tech

Cannabix Technologies, developer of marijuana and alcohol breath testing devices, has filed a provisional patent application titled, “Sample Delivery Systems and Methods for Low Volatility Analytes Obtained from Breath.”

This provisional patent application covers new innovations and intellectual property related to the detection of low and semi-volatile substances (like delta-9 THC) using its proprietary Mass Spectrometer Breath Sampler (MSBS) technology. The MSBS is a hardware device which allows for direct desorption of human breath samples into a mass spectrometer without the need for any pre-preparation. The MSBS simplifies laboratory analysis methods, reduces sample turnaround times (within a few minutes).

Highlights and Updates:

  • The company has filed a new provisional patent for its MSBS related technology allowing for the rapid analysis of human breath for difficult to detect, non-volatile compounds in breath (like delta-9 THC).

  • Cannabix’s MSBS technology along with the Breath Collection Unit (BCU) have been providing consistent results in the detection of delta-9 THC in breath from smoking and THC infused edibles consumption.

  • Cannabix has been using the MSBS to quantify delta-9 THC in human breath samples. Currently, a limit of detection and limit of quantification have been achieved with human subjects in the low picogram range. This allows detection of THC from smoking and edibles up to 4 hours after consumption.

  • Cannabix is advancing discussions with industry leading forensic laboratory organizations on how to best integrate its novel MSBS hardware into current forensic testing and analysis methods.

  • Effective January 1, 2024, new legislative measures, California Assembly Bill 2188 (AB 2188), Senate Bill 700 (SB 700), and Washington State Senate Bill 5123 (SB 5123), now restrict employers from taking adverse actions against job applicants based on their off-duty use of cannabis or on the results of pre-employment drug tests that find non-psychoactive cannabis metabolites (1). Cannabix’s marijuana breathalyzer system (using the BCU and MSBS) has been specifically built to detect recent cannabis use – detecting Delta-9 THC, the active, psychoactive compound in cannabis – using breath samples, within 1-4 hours after consumption.

The new provisional patent covers various novel aspects for efficient analysis of low volatility analytes from human breath developed by the Company. The patent includes the unique internal geometry of the sampler that has been optimized to maximize the delivery of the analyte. Combined with liquid secondary adsorption (LSA), the concept behind the sample capture and release, the MSBS has repeatedly demonstrated efficient detection of delta-9 THC. This is a unique capability in that current methods focus mostly on volatile analytes in breath, while the non-volatile components can provide much more additional information about the subject – not only marijuana use but also for example health related biomarkers. Cannabix has been continuously improving collection efficiency of the BCU, and sample transfer efficiency of the MSBS such that the results are comparable or better relative to conventional liquid chromatography-mass spectrometry (LC-MS) forensic methods, which are often time-consuming and expensive.

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