Patent ID: 8075550

Claim:
A piercing member protection device comprising a longitudinal center axis, a first member having a first end and a second end, a second member having a first end and a second end, and a third member having a first end and a second end, wherein said first member is at least partly encompassed by said second member, and said second member is at least partly encompassed by said third member, wherein said first member comprises a connection means for connection to a first connection port, wherein said piercing member protection device is arranged to accommodate a piercing member comprising a piercing tip that extends along said longitudinal center axis and is directly or indirectly attached to said third member, wherein said first member comprises a protection chamber to protect at least said piercing tip of said piercing member, wherein said piercing member and said piercing tip are movable between (i) a secured position in which said piercing tip is enclosed by said protection chamber so as to prevent said piercing tip of said piercing member from exposure and (ii) an unsecured position in which said piercing tip of said piercing member is exposed outside said protection chamber and said first member, wherein said third member is arranged to turn with respect to said second member between a locked position and an unlocked position so that when said third member is in said locked position said piercing member is substantially unable to move along said longitudinal center axis and when said third member is in said unlocked position said piercing member is enabled to move along said longitudinal centre axis, wherein said piercing member protection device comprises a first locking arrangement comprising at least one deformable bias flange, wherein said first locking arrangement has a locked position and an unlocked position, wherein when said first locking arrangement is in said locked position, said first member is prevented from turning with respect to said second member, and when said first locking arrangement is in said unlocked position, said first member is permitted to turn with respect to said second member, and wherein said locked position is arranged to be altered to said unlocked position by deforming said at least one deformable bias flange by bringing said piercing member protection device into contact with said first connection port.