Abstract: The sample coupler device is used to connect a sample collector container to a pipe used to transport gases or liquids. The coupler device permits collecting of blood or intravenous fluid sample material without it becoming contaminated. The coupler's most significant feature is the combination of the conical snout on the housing containing the integral feeder tube so that the blood or intravenous fluid may be collected without utilizing any external needles. This is significant when the person to whom this intravenous feeding system is connected has been exposed to Acquired Immune Deficiency Syndrome, hepatitis or any other non-curable or potentially fatal malady.