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    • 61. 发明公开
    • A SAFETY NEEDLE DEVICE
    • EP4066873A1
    • 2022-10-05
    • EP21166669.8
    • 2021-04-01
    • HTL-Strefa S.A.
    • OSAK, RobertKOMUDA, MarcinNIEMIEC, MarcinGRZELAK, RobertPERLAK, RafalBIALAS, Bartlomiej
    • A61M5/32
    • Safety needle device (1) comprising: a hub (10) configured to be connected to a peninjector, the hub (10) comprising a lateral wall (11) and an upper wall (12); a needle (20) attached to the hub (10), a back-end shield (30) slidable along the longitudinal direction (X-X) within the cavity (13) of the hub (10) and rotatable about the longitudinal direction (X-X), the back-end shield (30) being movable irreversibly from an initial position, before connection of the pen injector to the hub (10), to a locking position, after removal of the pen injector to the hub (10) passing through an intermediate position, an elastic member (40) arranged within the cavity (13) and acting between the upper wall (12) and the back-end shield (30) to urge the back-end shield (30) towards the proximal end (21) of the needle (10) along the longitudinal direction (X-X), a locking arrangement (50) comprising at least a first locking member (60) formed on the back-end shield (30) and at least a second locking member (70), the second locking member (70) cooperating with the first locking member (60) to guide the back-end shield (30) from the initial position to the locking position and to lock the back-end shield (30) in the locking position,