PROBLEM TO BE SOLVED: To prevent a liquid object from being stuck to a gap between a male member and an outer casing of a male connector caused by performing an enteral nutrition.SOLUTION: An adaptor 1 includes a female connector 110 at one end, and a male connector 120 at the other end. The female connector 110 includes a tubular part 111 having a hollow cylindrical shape, and a spiral projection 115 formed on an outer peripheral surface of the tubular part 111. The male connector 120 includes a cylindrical male member 121, an outer casing 123 provided to enclose the male member 121, and a female thread 125 provided on an inner peripheral surface of the outer casing. The tubular part 111 and the male member 121 are communicated to each other.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT
