A non-sterile sheath intended to be used as a physical barrier for protection against the effects of environmental exposure (e.g., body fluids, gliding creams) and/or to maintain the required hygienic level of an ultrasound imaging system transducer (probe) used in natural body orifices (e.g., vagina, rectum, oesophagus) during an ultrasound examination; it has no additional functionality. This is a single-use device.