Abstract: A handling device for use with a medical injector (11) including a protective sheath (17) for a needle (14) has a carrier (20) with an outer cylindrical wall (21) and a coaxial inner tube (33) which is a close sliding fit over the protective sheath (17). A cylindrical sleeve (24) is slidably mounted within the outer cylindrical wall (21) and is adapted to receive the cylindrical body (12) of the injector (11). A bushing (25) is slidably retained within the cylindrical sleeve (24) and is configured to receive a boss (13, 15) supporting a needle (14) at the forward end of the injector body, a spring (29) urging the bushing (25) towards the rear of the sleeve. A plug (35) is mounted on the carrier (20) and is engaged by the forward end of the protective sheath (17) when an injector is received within the cylindrical sleeve, so that the plug is projected forwardly from the carrier when the injector is fully engaged.

Abstract: Injection apparatus having a pre-filled syringe provided with a safety needle assembly, and a sleeve open at one end for containing the syringe with the safety needle assembly projecting from the open end of the sleeve. A cap is fitted to the open end and is configured to receive the projecting part of the safety needle assembly. A seal secures the cap to the sleeve. Following breaking of the seal, the syringe is removed from the sleeve and the cap is removed from the safety needle assembly so permitting the syringe to perform an injection. Thereafter, the syringe is reinserted into the sleeve with the safety needle assembly nearer the closed end of the sleeve, an internal rib in the sleeve co-operating with the safety needle assembly to retain that assembly in the sleeve.

Abstract: A latching blocking mechanism includes a static component (10,50), a movable component (14,52) slidable relative to the static component and a control member (21,58) arranged to slide with the movable component (14,52) but displaceable transversely or rotationally with respect to the movable component. After the control member (21,58) has moved from a first position through a pre-determined distance towards a second position, a spring (F,60) becomes active to urge the control member to its second position. Sliding movement of the movable component (14,52) displaces the control member (21,58) in the sliding direction to interengage respective camming parts (12,25) on the static component (10,50) and control member (21,58) thereby to displace the control member transversely through said pre-determined distance.

Abstract: A safety arrangement for a medical needle (15) has a support (14) for carrying the mount end of the needle, and a sleeve (16) slidably mounted on the support (14) for movement from an initial position to a retracted position and then back to a protecting position where the sleeve (16) covers the tip (21) of the needle (15). A spring (32) urges the sleeve toward its protecting position and a blocking member (23) projects forwardly from the support (14) and is movable between non-blocking and blocking positions. In the non-blocking position the sleeve (16) is free to slide from its initial position to its retracted position. On movement of the sleeve to its protecting position, the blocking member (23) moves to lie between the support (14) and sleeve (16) to prevent subsequent movement of the sleeve away from its protecting position.