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The Osmetech Microbial Analyzer-Bacterial Vaginosis (OMA™-BV) is an automated in vitro diagnostic device intended for use to indirectly measure bacterial presence by semi-quantitative analysis of volatile compounds released into the headspace above a high vaginal swab. The OMA™-BV is indicated for use as an adjunct for the diagnosis of Bacterial vaginosis (BV). The device may be used together with other clinical and patient information when diagnosing BV including pH, vaginal discharge characteristics, amine odor and clue cells or gram stain procedures that are currently commonly used to diagnose infection.

The OMA™-BV uses "electronic nose" technology for the detection of volatile compounds released from microorganisms in human specimens. The principle is based on the release of volatile compounds from bacteria into the headspace [the volume above the High Vaginal Swab (HVS) samples] of clinical samples. The volatile compounds are detected by an array of gas sensors based on patented conducting polymer technology.