US Patent No. 10,363,379

SAFETY DEVICE FOR A MEDICAMENT CONTAINER


Patent No. 10,363,379
Issue Date July 30, 2019
Title Safety Device For A Medicament Container
Inventorship David Darras, Paris (FR)
Fabien Canepa, Paris (FR)
Bruno Serre, Paris (FR)
Jacky Mazzolini, Oyonnax (FR)
Assignee Sanofi, Paris (FR)

Claim of US Patent No. 10,363,379

1. A medicament delivery device comprising:a medicament container carrying a needle; and
a safety device comprising:
a first sheath through which the needle is movable in a distal direction to enter the safety device, the first sheath comprising a first ledge and a second ledge,
a second sheath telescopically arranged with the first sheath and releasably coupled to the first ledge of the first sheath, and
a finger flange comprising at least one resilient clip adapted to engage the second ledge of the first sheath, the at least one resilient clip comprising:
a transverse beam extending in a radially inward direction relative to a longitudinal axis of the first sheath,
a longitudinal beam extending from the transverse beam in a proximal direction opposite to the distal direction, and
a hook comprising a slope surface and a block surface extending from the longitudinal beam in the radially inward direction,
wherein the second ledge is configured to engage the slope surface such that the at least one resilient clip increasingly deflects in a radially outward direction relative to the longitudinal axis of the first sheath during insertion of the second ledge in the distal direction into the finger flange, and
wherein the second ledge is configured to engage the block surface after the second ledge has passed the slope surface such that the block surface prevents the second ledge from moving in the proximal direction.