Patent ID: 6638255
Filing Date: 2003-10-28
Classification: A61M

Abstract:
An injection device having: a syringe with a syringe barrel; a needle assembly with a needle; a plunger with a plunger rod; a and a flange that encompasses the opening of the syringe barrel to the plunger rod; coupling element (30,30A,30B) provided on the syringe barrel (11) or on the plunger rod (13), which blocks the plunger rod (13) from being pushed in (blocking positions that holds the syringe (10) inside the guide element 33 (20,20A,20B) so that the syringe is slidable by a penetration stroke (H1), the guide element (20,20A,20B), after placement onto the injection site prior to starting the penetration stroke (H1) in the blocked position, extending beyond the needle (15); and a trigger mechanism positioned within the guide element (20,20A,20B) to release the blocking of the plunger rod (13) to release the injection stroke (H2) (release position) when the needle (15) has reached a subcutaneous injection site after completion of the penetration stroke (H1).