Patent ID: 9669170
Date: 2017-06-06
CPC Classifications: A61M

Claim:
1. A safety device suitable for a pre-filled syringe containing a medicament comprising a chassis adapted to be affixed to the pre-filled syringe, a flexible outer structure made from a material with a shape memory and a substantially cylindrical needle shield affixed or integral to the flexible outer structure, wherein when deformed, the flexible outer structure is capable of advancing the needle shield with respect to the chassis in a distal direction into a position in which the needle shield projects from the chassis in the distal direction and wherein a biasing force for advancing the needle shield originates from a shape memory effect that causes the deformed flexible outer structure to substantially return to an unstressed shape of the outer structure, wherein the flexible outer structure is adapted to cover the pre-filled syringe with a plunger and to provide a grip enhancing and non-slip outer cover and wherein a clip arranged proximally on the flexible outer structure is adapted to latch to a notch arranged on the chassis to couple the deformed flexible outer structure to the chassis so as to bias the needle shield with respect to the chassis in the distal direction.