Patent ID: 8313470

Claim:
A device ( 1 ) for automatic injection of a product into an injection site, said device having a longitudinal axis ( 2 ) and comprising: a housing ( 3 ) capable of receiving a container ( 6 ) movable relative to said housing ( 3 ) between an initial position, in which a tip of a needle ( 8 ) provided on the container ( 6 ) does not extend beyond a distal end of said housing ( 3 ), to an insertion position, distally spaced relative to said initial position and in which the tip of the needle ( 8 ) extends beyond said distal end of said housing ( 3 ); a needle shield ( 12 ) for receiving said needle ( 8 ) and in which the needle ( 8 ) is embedded prior to use of said device ( 1 ); a deshielder ( 33 ) coupled to said needle shield ( 12 ) by first connecting means ( 51 ) and removably assembled to the distal part of the housing ( 3 ) by second connecting means ( 44 , 45 a , 45 b , 57 ), the deshielder ( 33 ) being intended to be removed from said housing ( 3 ), thereby also removing the needle shield ( 12 ), prior to use of said device ( 1 ); characterized in that: said first and second connecting means are designed so that a rotational movement of the deshielder ( 33 ) about the device axis ( 2 ) with respect to the housing ( 3 ) causes an axial displacement of the needle shield ( 12 ) in the distal direction with substantially no rotational movement of the needle shield ( 12 ) with respect to the needle ( 8 ).