PUNCTURE PIECE

PROBLEM TO BE SOLVED: To provide a puncture piece with excellent puncture operability, capable of accommodating a needle tip of a used needle body by a simple operation, with highly safety in disposal. SOLUTION: The puncture piece 1 comprises a puncture piece body 2 having a needle tube 20 and a hub 22, a protector for covering at least a needle tip 21 of the needle tube 20, a rotational supporting part 3 for rotatably supporting the protector 4, and a regulating means for regulating the range of the rotational angle in the circumferential direction of the protector with respect to the hub 22. The rotational supporting part 3 comprises a cylindrical body forming an arc-like space 32 between an outer circumferential surface of the hub 22 and itself, and a long hole 31 is formed along the circumferential direction. The fitting part 5 of the protector 4 comprises a columnar part 51 and a claw 52 to be locked to an edge of the long hole 31. Locking parts 33 and 34 are formed as regulating means on both ends of the space 32, and the columnar part 51 is locked to the locking part 33 or 34 to stop the rotation of the protector 4 with respect to the hub 22.