Patent ID: 8870832

Claim:
A combination of an injector and a vial adaptor for releasably holding a vial comprising: an injector plunger arranged along a longitudinal axis; a vial adaptor sleeve member arranged along said longitudinal axis; and a vial engaging element operative to slidingly translate within said vial adaptor sleeve member in an axial direction along said longitudinal axis, releasably hold said vial and allow axial movement along said longitudinal axis of said plunger relative to said vial adaptor sleeve member, said vial engaging element being operative, in a non-vial engagement orientation, to retain said injector plunger in a locked position relative to said vial adaptor sleeve member against axial movement along said longitudinal axis in at least one axial direction of said injector plunger, and in a vial engagement orientation, to allow said axial movement along said longitudinal axis of said plunger relative to said vial adaptor sleeve member in at least one axial direction of said injector plunger.