Patent ID: 11933731
Assignee: HOUND LABS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A handheld breath sample apparatus for detection of tetrahydrocannabinol (THC) in a breath sample using Surface-Enhanced Raman Spectroscopy (SERS), the apparatus comprising:
a housing comprising a cartridge interface configured to mechanically interface with a cartridge that has a Surface-Enhanced Raman Spectroscopy (SERS)-active substrate, wherein the SERS-active substrate comprises one or more capture sites for a breath sample; and
a detection device optically coupled to the SERS-active substrate to detect Raman signals emitted from the SERS-active substrate, and to correlate the Raman signals to a threshold level of THC; and
wherein the threshold level of THC is correlated with an average amount of THC in breath between 2 and 3 hours after inhalation.