Patent ID: 8021335
Filing Date: 2011-09-20
Classification: A61M

Abstract:
1. A jet injector, comprising: a prefilled syringe comprising: a housing that houses the prefilled syringe and is configured for allowing insertion of the needle at the injection location to an insertion point that is at a penetration depth below the surface at the insertion location; a syringe support supportively mounting the prefilled syringe to the housing; a syringe cushion associated with the syringe support and prefilled syringe and made of an elastomeric material to compensate for shape irregularities of the pre-filled syringe, 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 that substantially remains between about 80 p.s.i. and 1000 p.s.i. during the injection of the medicament to jet inject the medicament from the fluid chamber through the needle to the injection site.