Patent ID: 9022989
Filing Date: 2015-05-05
Classification: A61M

Abstract:
1. An injection device comprising: a forward housing; a drive housing having a forward end configured to be attached to and detached from a rear end of said forward housing, the drive housing including a drive mechanism; a syringe having a needle, said syringe being mounted in said forward housing for movement between a rearward position in which said needle is shrouded by a forward part of said forward housing, and a forward position in which said needle projects forwardly of said forward housing for delivery of a dose; a locking/latching arrangement moveable between: (a) a locking/latching position in which said locking/latching arrangement: (b) an unlocked position in which the syringe is allowed to move forward, the locking/latching arrangement being configured to be responsive to attachment and detachment of said drive housing and said forward housing wherein: when the forward housing and the drive housing are detached, the locking/locking arrangement is in said locking/latching position, upon attaching said drive housing to said forward housing, when a predetermined extent of engagement between said drive housing and said forward housing is reached or exceeded, said locking/latching arrangement is released and said locking/latching arrangement is moved to its unlocked position, and upon detaching said drive housing and said forward housing, when a predetermined extent of disengagement between said drive housing and said forward housing is reached or exceeded, said latching arrangement returns to its locking/latching position.