Abstract: A safety device for uncapping and recapping a removable protective sheath of a needle includes a cylindrical elongated enclosure. The cylindrical elongated enclosure includes first and second ends and a diameter of sufficient size for receiving and enclosing the sheath. Retaining structure is disposed at the first end of the cylindrical elongated enclosure for grasping and retaining the sheath within the cylindrical elongated enclosure during uncapping and recapping of a needle. Receiving structure communicates with the first end of the cylindrical elongated enclosure for guiding the needle towards the first end of the cylindrical elongated enclosure during recapping and for guiding the sheath toward the first end of the cylindrical elongated enclosure during uncapping.