Patent ID: 8070741
Filing Date: 2011-12-06
Classification: A61M

Abstract:
1. A method of deploying safety shield system for use with a syringe having a barrel defining a reservoir within which a medicament may be held, the syringe having a needle affixed to the barrel and in fluid communication with the reservoir, the syringe further including a plunger rod and piston selectively movable within the reservoir along an injection stroke, the medicament being expelled from the reservoir through the needle by movement of the plunger rod and piston in the reservoir, said safety shield system comprising: providing a holder further comprising a retainer defined on said holder and comprising a detent and at least one engaging pawl, said retainer securing a flange of the syringe barrel within said holder and permitting axial movement of the barrel therein and with respect thereto, applying a force to the plunger rod, thereby moving the piston within the reservoir and thereby moving the barrel axially and sufficiently moving said barrel in the direction of the needle; compressing the spring to a condition wherein abutment of the coils of the spring occurs wherein the helical coils are in direct contact with each other and the spring is substantially at its solid height and thereby allows direct force transmittal between the syringe flange and a proximal end of said shield, and thereby causing disengagement of said first and second stop members, allowing said spring to move said shield to the extended position.