Safety Needle Accessory

A safety needle accessory comprising:

• a hub for surrounding a hollow needle having a tip and having a connector for attachment to a syringe,
• a slidable sleeve adapted to slide over the needle in a first longitudinal direction from a first position in which the needle is fully or partially covered by the sleeve to a second position in which the needle is exposed, and in a second longitudinal direction from the second position to a third position in which the needle is fully covered by the sleeve,
• and a pack surrounding the hollow needle, hub and slidable sleeve having a closed end covering the needle and an open end exposing the connector of the hub,
• wherein the safety needle accessory further comprises a first seal attached to the connector of the hub, a second seal between the hub and the pack, and a third seal between the closed end of the pack and the needle tip and wherein at least the second seal and third seal are an elastic seal which is gas-permeable and prevents the passage of bacteria and pyrogens.