Prefilled syringe injector

An injector, comprising:

• a prefilled syringe comprising:
• a container portion defining a fluid chamber containing a medicament;
• a distal portion and a proximal portion opposite the distal portion;
• a needle disposed at the distal portion of the prefilled syringe, the needle having an injecting tip configured for piercing an insertion location, and defining a fluid pathway in fluid communication with the fluid chamber for injecting the medicament from the fluid chamber into an injection site;
• a plunger movable within the fluid chamber;
• and
• a housing housing the prefilled syringe and configured for allowing insertion of the needle at the injection site to an insertion point that is at a penetration depth below a surface at the insertion location;
• a syringe support fixing the prefilled syringe to the housing and axially supporting the proximal portion of the prefilled syringe during the injection of the medicament, such that the distal portion of the prefilled syringe is substantially unsupported in an axial direction;
• and
• an energy source configured for biasing the plunger with a force selected to produce an injecting pressure in the medicament in the fluid chamber to inject the medicament from the fluid chamber through the needle to the injection site.