Safety device for a pre-filled syringe and injection device
AssigneeSanofi-Aventis Deutschland GmbH
InventorsGareth Roberts, Sioned Owen, Matthew Ekman
Life of this patent
Estimating the term…
Abstract
A needle shield comprising at least two different plastic materials of different flexibility and a central aperture of variable diameter. The central aperture comprises a first diameter for retaining a needle cap therein. The diameter of the central aperture changes upon removal of the needle cap from the first diameter to a second diameter by virtue of a memory effect of the material of the needle shield. The needle shield is made by an injection moulding process.
Claims12
1-11. (canceled)
A needle shield comprising at least two different plastic materials of different flexibility and a central aperture of variable diameter, wherein the central aperture comprises a first diameter for retaining a needle cap therein, wherein the diameter of the central aperture changes upon removal of the needle cap from the first diameter to a second diameter by virtue of a memory effect of the material of the needle shield, characterized in that the needle shield is made by an injection moulding process.
A safety device for a pre-filled syringe comprising:
- a hollow support body to retain the pre-filled syringe therein and
- a needle shield according to one of the previous claims, wherein the needle shield is slidably arranged relative to the support body.
Dependencies are inferred from the claim text.