Subcutaneous and intradermal patch infusers

A disposable infuser device for rapid subcutaneous or intradermal delivery of a drug or other medical compositions to a living being, said infuser device comprising:

• a housing comprising a prefilled syringe having a cannula coupled thereto, said prefilled syringe comprising the drug or other medical composition and including a displaceable stopper for driving the drug or other medical compositions from said syringe and through said cannula and wherein said prefilled syringe comprises a syringe axis that is parallel to the skin of the living being when said infuser device is coupled thereto;
• an infuser base to which said housing is coupled, said infuser base configured to releasably secure to the skin of the living being;
• a cannula bending mechanism associated with said housing that, when activated, bends said cannula to be substantially perpendicular to said syringe axis while penetrating the skin of the living being;
• a cannula insertion mechanism associated with said lever, said housing and said base that when activated, inserts said cannula through the skin into the underlying tissue;
• a drug delivery mechanism associated with said housing and said lever that drives said displaceable stopper to deliver the drug or other medical compositions through said cannula once said cannula has penetrated the skin of the living being;
• and
• a lever that is manually displaceable by a user of said disposable infuser device, said lever activating said cannula bending mechanism, said cannula insertion mechanism, and said stopper driving mechanism via a single activation of said lever.