A protector (16) comprising an inner tube (18), a lid (38) connected to the upperopening (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 innertube (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 theblood collecting needle (14) moves downward. An operation lever (44) extendingdownward is installed at the side of the lid (38), and the end part (46) of the operationlever is slightly projected outward. When the blood collecting needle (14) ismoved, the inner tube (18) is pulled integrally with the tube (12) by the annularseat 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) isclosed and the blood collecting needle (14) is stored in the inner tube (18).
