US Patent 9585547 Adjustable endoscope sheath

An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.