A protector (16) comprising an inner tube (18), a lid (38) connected to the upper opening (34) of the inner tube (18) through a hinge (36), and an outer tube (20) for holding the inner tube (18) in its inner cavity part. A blood collecting needle (14) to which a tube (12) is connected is stored in the inner tube (18). The inner tube (18) comprises an annular seat face (32) which seats on the base end part (28) of a hub (22) formed integrally with the blood collecting needle (14) when the blood collecting needle (14) moves downward. An operation lever (44) extending downward is installed at the side of the lid (38), and the end part (46) of the operation lever is slightly projected outward. When the blood collecting needle (14) is moved, the inner tube (18) is pulled integrally with the tube (12) by the annular seat face (32) to be slid relative to the outer tube (20) until the end part (46) abuts on the lower end part (70a) of an operation hole (70). Then, the lid (38) is closed and the blood collecting needle (14) is stored in the inner tube (18).
