A catheter securement device includes a planar base having an adhesive side for attaching the base to a patient and a mounting side. A receptacle adapted to nest a catheter hub therein is mounted on the mounting side of the base. The receptacle is generally U-shaped in cross-section and is open along a top surface to receive a catheter hub. The receptacle has opposite side walls and front and rear ends. An endless elastic member is retained by one side wall of the receptacle. The endless elastic member is capable of manipulation and stretching over the opening in the top surface and beyond the opposite side wall of the receptacle to retain a catheter hub nested in the receptacle. A flange extends outwardly at the top surface of the opposite side wall to keep the elastic member in place when nesting a catheter hub in the receptacle.
