596182 Disclosed is a portable automatic injection medicament dispensing device having a mechanism which is less susceptible to mechanical jamming for dispensing the medication to a user. The device employs a coupling for coupling the relative motion between reciprocating body members housing the ancillary components and a barrel plunger associated with the syringe. One embodiment provides a pivoting coupling whereas an alternate uses a rack and pinion system. The device has a needle connected to a barrel adapted to retain medicament and a plunger within the barrel. The device comprises a first body member and a second body member coaxially mounted for reciprocal movement, and housing the needle, the barrel and the plunger. A drive means is connected between the first body member and the second body member for effecting the reciprocal movement between the first body member and the second body member. A coupling means is integral with each of the first body member and the second body member coupled with the drive means, whereby upon reciprocal movement of the first body member and the second body member, the needle is exposed and the plunger is moved within the barrel for discharging the medicament.
