Patent ID: 7976514

Claim:
A device ( 1 ) for automatic injection of a product ( 3 ) into an injection site ( 4 ), the injection device comprising: a container ( 5 ) having an open proximal end and a substantially closed distal end and being intended to receive the product, and provided at its distal end ( 5 a ) with an injection needle ( 6 ) providing an outlet port of said container, a housing ( 9 , 11 ; 68 ; 72 ; 93 ) intended to receive, at least partially, said container, said container being movable relative to said housing between an initial position, in which said needle is contained within said housing, an insertion position, distally spaced relative to said initial position and in which said needle is exposed over a predetermined length, and a final position in which said needle is contained within said housing ( 9 , 11 ; 68 ; 72 ), retaining means ( 12 , 15 ; 46 , 47 ; 104 , 105 , 107 ), arranged to maintain said container in said insertion position, deactivating means ( 20 ; 49 ; 99 ), arranged to release automatically said retaining means and cause said container to move to said final position, temporizing means ( 19 , 26 , 27 ; 41 , 43 ; 50 ; 51 ; 52 ; 53 ; 55 , 56 ; 57 , 58 ; 59 , 63 ; 79 , 75 , 76 ; 96 , 97 , 98 ), arranged to control the release of said retaining means by said deactivating means until substantially all of the product contained within said container has been caused to pass through said outlet port and said injection needle before said container moves to said final position, said device being characterized in that it further comprises: a needle shield ( 2 ) coupled with said housing ( 9 , 11 ; 93 ) and covering the needle prior to use of said device, and, in that before use, said housing ( 9 , 11 ; 93 ) is coupled to a deshielder ( 2 a ) comprising a cap ( 90 ) to which is fixed said needle shield ( 2 ), said housing comprising grooves ( 95 ) for guiding the translation of said cap ( 90 ) in an axial direction without rotation of said cap when said cap ( 90 ) is removed together with the removal of said deshielder ( 2 a ) in view of using said device ( 1 ).