Patent ID: 8357125

Claim:
A device ( 1 ) for automatic injection of a product ( 2 ) into an injection site ( 4 ), said device being in one of a passive and active state, triggering of injection being prevented when said device ( 1 ) is in its passive state and permitted when said device ( 1 ) is in its active state, said device having: a housing ( 30 , 30 a , 30 b ) capable of receiving a container, the container being movable relative to the housing between an initial position and an insertion position distally spaced from the initial position, the container being in one of a passive state and an active state, movement of the container out of its initial position being prevented when the container is in its passive state, and being permitted when the container is in its active state, and a safety shield ( 40 ) coupled with the housing ( 30 ) and being movable with respect to the housing along a movement path having a predetermined length, the safety shield being movable between a first position and a second position a first distance that is less than the predetermined length, and between the second position and a third position a second distance that is less than the predetermined length, first retaining means ( 60 , 61 , 54 a ) for maintaining the container ( 20 ) in its passive state, second retaining means ( 34 a , 81 b ) for maintaining said device ( 1 ) in its passive state, said device ( 1 ) being characterized in that it further comprises: first deactivating means ( 50 , 53 ) movable coincident with movement of the safety shield ( 40 ) the first distance to cooperate with first retaining means ( 61 , 54 a ) so as to place the container ( 20 ) in the active state, and second deactivating means ( 50 , 50 a ) movable coincident with movement of the safety shield ( 40 ) the second distance to cooperate with second retaining means ( 34 a , 81 b ) so as to place the device ( 1 ) in its active state, wherein part of the first and second deactivating means are formed on a sleeve ( 50 ) coupled to the safety shield ( 40 ) and being received within said housing ( 30 ), the sleeve ( 50 ) moving in rotation and in translation with respect to the housing ( 30 ) when the safety shield ( 40 ) moves from its first position to its second position, the sleeve ( 50 ) moving in translation with respect to the housing ( 30 ) when the safety shield ( 40 ) moves from its second position to its third position.