SAFETY DEVICE AND DRUG DELIVERY SYSTEM MOUNTED THEREON

A safety device (10) includes: a tubular body (12) configured to receive a cartridge (102); a head arrangement configured to abut and lock into the flange (107); at least two actuation arms connecting the tubular body and the head arrangement, the actuation arms having a proximal link connected to the head arrangement by a proximal hinge and a distal link (40, 240) connected to the tubular body by a distal hinge (47, 247), the proximal link and the distal link being connected by an intermediate hinge (49, 249), an actuation arm movable between a collapsed position in which the tubular body is held in a position proximally proximate the flange exposing the needle, and an extended position in which the tubular body is held in a position distally disposed away from the head shielding the needle; locking means for holding the actuating arm in the collapsed position and locking means for holding the actuating arm in the extended position. 一种安全装置(10)包含：管状主体(12)，其被构造成接收筒(102)；头布置，其被构造成抵接凸缘(107)并且锁定至凸缘中；至少两个致动臂，其连接所述