Protector is mounted on has an outer diameter to be greater than the needle main body protector with needle main body and major diameter part, the protector main body with a plate being made of metal material. The protector main body has first part, and in the first perforation, these needle bodies are penetratingly formed, and second part is formed in the second hole, Part III and a connection first part and second part. Second hole, the second part have a tubular sections, thus needle main body are allowed to pass through but major diameter portion is not allowed to pass through. The construction of the protector so that, when needle point is covering, tubular portion is connected in major diameter portion, and thus movement of the syringe needle to base end side is prohibited.
