A sub-assembly of a medicament delivery device

Abstract

The present disclosure provides a sub-assembly of a medicament delivery device, the sub-assembly comprising: a housing extending along a longitudinal axis between a proximal end and a distal end, a plunger rod arranged within the housing; wherein the plunger rod comprises a plunger rod body and a ledge extending from the plunger rod body in a direction transverse to the longitudinal axis; a biasing member configured to bias the plunger rod relative to the housing in the direction of the longitudinal axis; and a plunger rod holder axially immovable relative to the housing; wherein the ledge of the plunger rod defines two opposite surfaces facing towards the distal end and the proximal end of the housing respectively; and wherein one of the two opposite surfaces is configured to engage with the biasing member and the other one of the two opposite surfaces is configured to releasably engage with the plunger rod holder.

Dependencies are inferred from the claim text.