Thrust bearing assembly, drive train, and medicament delivery device

Abstract

A thrust bearing assembly for guiding and driving a piston member having a lead screw for dispensing a medium of a delivery device when the piston member is driven in a first axial direction is provided. The thrust bearing assembly comprises a thrust bearing means for being integrated in the delivery device, a passageway for guiding the lead screw, and a rotary drive means for driving the lead screw and being fitted into or onto the thrust bearing means while being rotatable with regard to the thrust bearing. Further, the thrust bearing means comprises a thrust face which limits axial movement of the rotary drive means when driving the lead screw in the first axial direction. A drive train and a medicament delivery device in which the thrust bearing assembly is integrated are also provided.

Dependencies are inferred from the claim text.