US Patent No. 10,166,342

RECOIL REDUCING NEEDLE SHIELDS


Patent No. 10,166,342
Issue Date January 01, 2019
Title Recoil Reducing Needle Shields
Inventorship Raymond Protasiewicz, Whippany, NJ (US)
Brian Costello, Whitehouse Station, NJ (US)
Christopher Evans, Long Valley, NJ (US)
Christopher Gieda, Long Valley, NJ (US)
Assignee West Pharmaceutical Services, Inc., Exton, PA (US)

Claim of US Patent No. 10,166,342

1. A recoil reducing needle shield for covering a drug container with a needle, comprising:an outer shell, including an upper portion, a lower portion, and at least one flexible interface positioned therebetween, defining a fulcrum between the upper portion and the lower portion, such that radially inward flexing of the upper portion, from the flexible interface and upwardly, causes radially outward flexing of the lower portion, from the flexible interface and downwardly, about the at least one flexible interface; and
an inner cover mounted within the outer shell, the inner cover including an open proximal end, a closed distal end, and a needle cavity defined therein for receiving a portion of the drug container including the needle, at least a portion of the inner cover being disposed within the outer shell;
wherein the open proximal end of the inner cover is coupled to at least a portion of the lower portion of the outer shell, such that radially outward flexing of the lower portion stretches the open proximal end of the inner cover, thereby reducing an initial pull-off force required to remove the needle shield from the drug container.