Patent ID: 9545484
Date: 2017-01-17
CPC Classifications: A61M

Claim:
1. A needle shield arrangement for mounting on a syringe, the syringe having a generally cylindrical body, a needle at a forward end of the syringe, and a flange at a rear end of the syringe; and an autoinjector housing in which the syringe and the needle shield arrangement are mounted, the needle shield arrangement comprising: a shield portion adapted for shielding said needle; a syringe engaging portion for engagement with said syringe body; and a frangible connecting portion connecting said shield portion and said syringe engagement portion, wherein the syringe engaging portion of the needle shield arrangement includes a forward facing reaction surface through which loads may be transmitted to or sustained by the syringe body, such that in use, when the syringe and the needle shield portion are urged forward in the housing of the autoinjector, syringe movement is arrested by a stop surface in the housing, and at least part of an arresting load is transmitted to the generally cylindrical body of said syringe via the reaction surface on the syringe engaging portion of the needle shield assembly.