The present invention relates to a method for increasing the safety in conjunction with the removal of a cannula (KA) from a syringe, wherein the cannula (KA) is removed from the syringe (S) by a separation mechanism. The invention also relates to a device for increasing the safety in conjunction with the removal of a cannula (KA) from a syringe. The method according to the present invention is characterized by that a tube (1) and a casing (3) mounted on the tube (1) are placed on the outside of an injection body (SK) on the syringe (S), that a cannula (KA) is mounted on the injection body (SK), that the tube (1) and the casing (3) are shifted in the direction against the cannula (KA) so that the tube (1) surrounds the cannula (KA), that the tube (1) is clamped fast relative to the injection body (SK) by a mutual rotation of the tube (1) and the casing (3) relative to one another, that a relative shifting of the tube (1) and of the casing (3) takes place in the longitudinal direction of the tube (1) in order to cancel the clamping action between the tube (1) and the injection body (SK), that the injection body (SK) is shifted relative to the tube (1) so that the cannula (KA is exposed, and that the separation mechanism separates the cannula (KA) from the injection body (SK).La présente invention concerne un procédé permettant d'améliorer la sécurité lors du retrait de la canule (KA) d'une seringue, la canule (KA) étant retirée de la seringue (S) grâce à un mécanisme de séparation. La présente invention concerne également un dispositif permettant d'améliorer la sécurité lors du retrait de la canule (KA) d'une seringue. Le procédé de la présente invention est caractérisé en ce qu'un tube (1) et une enveloppe (3) montée sur le tube (1) sont placés sur l'extérieur d'un corps d'injection (SK) de la seringue (S), en ce qu'une canule (KA) est montée sur le corps d'injection (SK), en ce que le tube (1) et l'enveloppe (3) sont basculés contre la canule (KA) de manière à ce q
