A61B 5/150679

{Pivotable protective sleeves, i.e. sleeves connected to, or integrated in, the piercing or driving device, and which are pivoted for covering or uncovering the piercing element comprising means to impede repositioning of protection sleeve from covering to uncovering position fully automatically triggered, i.e. the triggering of the pivotable protective sleeve does not require a deliberate action by the user such as terminating the contact with the patient's skin}