Patent ID: 7896841

Claim:
An injection device for self-administering vaccine injections to a patient, comprising: a housing having a base portion; a needle positioned within the housing, the needle having an injection end and having an outside diameter greater than 0.20 mm and less than about 0.38 mm that effects a painless insertion of the needle into the patient, the needle moveable between a first position having its injection end wholly within the housing, and a second position wherein the injection end extends through and beyond the base portion; a reservoir for the vaccine, in liquid communication with the needle; and a means for injecting a vaccine from the reservoir through the needle; a separable base associated with the base portion having a skin-facing surface and an opposed surface, the separable base comprising an adhesive on the skin-facing surface that secures the device to the skin of a patient during the time that the device self-administers the injection of the vaccine to the patient, and a means for separably securing the separable base with the base portion, and a base separating means for selectively separating the separable base from the device while the separable base is secured to the skin.