Patent ID: 8137313

Claim:
Device ( 1 ) for injection of a product, in particular for medical use, comprising: a body ( 2 ) receiving a hollow injection needle ( 4 ) and a container ( 10 ) containing the product to be injected; the needle ( 4 ) and container ( 10 ) being movable relative to said body between an injection position and a retracted position; means ( 5 to 7 ; 28 , 29 ) for holding the needle in position, which means normally hold the needle ( 4 ) in said injection position, and which means can be released to permit movement of the needle ( 4 ) to said retracted position; means ( 39 , 41 , 45 ) for holding the container ( 10 ) in position, which means normally hold the container ( 10 ) in a position permitting injection, and which means can be released to permit movement of the container ( 10 ) to said retracted position; a piston ( 11 ) engaged in the container ( 10 ), characterized in that it additionally comprises: first actuating means ( 42 ) of means ( 5 to 7 ; 28 , 29 ) for holding the needle ( 4 ) in the injection position, second actuating means ( 32 ) of means ( 39 , 41 , 45 ) for holding the container ( 10 ) in position, said first and second actuating means ( 42 , 32 ) making it possible, at the end of the injection, to respectively release the means ( 5 to 7 ; 28 , 29 ) for holding the needle ( 4 ) in the injection position before the release of the means ( 39 , 41 , 45 ) for holding the container ( 10 ) in position, or to simultaneously release the means ( 5 to 7 ; 28 , 29 ) for holding the needle ( 4 ) in position and the means ( 39 , 41 , 45 ) for holding the container ( 10 ) in position, a container support ( 9 ) which is mounted slidably on the body ( 2 ) and is displaceable relative to the latter in order to perform the injection, said container ( 10 ) being connected to this support ( 9 ) and being able to move relative to the latter between a position permitting injection and a retracted position, means ( 3 , 47 , 48 ) for holding the container support ( 9 ) in position, which means normally hold the container support ( 9 ) in a standby position before the injection and can be released in order to permit displacement of the container support ( 9 ) and to permit injection, means ( 49 ) actuating the release of the means ( 3 , 20 , 47 , 48 ) for holding the container support ( 9 ) permitting injection in position, wherein, said means ( 5 to 7 ; 28 , 29 ) for holding the needle ( 4 ) holds the needle ( 4 ) in the injection position with the container support ( 9 ) in the stanby position before the injection.