The invention relates to a safety assembly for medical technology, which comprises a handling device having a main part and a holding attachment and a longitudinal axis extending between a distal and a proximal end. A protective device is moreover provided, having a base part and a protective element connected pivotally thereto, wherein the base part is retained on the holding attachment of the handling device so as to rotate about the longitudinal axis. A locking device having first and second detent elements defines a relative position of the protective device with respect to the handling device. The at least first detent element provided on the handling device is arranged spaced from the holding attachment in the radial direction with respect thereto and spaced from the annular base part on the side facing away from the longitudinal axis. The at least second detent element provided on the base part of the protective device is arranged or formed on the base part on the side thereof facing away from the longitudinal axis. The base part is mounted on the holding attachment of the handling device so as to rotate freely about the longitudinal axis.