Patent ID: 11865314
Assignee: SHL MEDICAL AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medicament delivery device, comprising:
a housing;
a piston plunger comprising a single elongated tubular structure defining a hollow body having a threaded outer surface, where the piston plunger rotates during dose delivery relative to the housing;
a telescopic dose drum comprising;
a distal part; and
a proximal part slidably engaged with the distal part and comprising a proximal end threadedly engaged to the threaded outer surface of the piston plunger, where the proximal end forms part of a remaining dose stop,
wherein the distal part is located coaxially and radially outside of the proximal part such that axial movement of the telescopic drum relative to the housing causes the proximal part to move a shorter axial distance distally compared to simultaneous distal axial moment of the distal part when setting the dose; and

a medicament container holder configured to receive a medicament container containing a movable stopper, wherein a spinner is directly connected to a terminal proximal end of the piston plunger such that piston plunger can rotate relative to the spinner and the spinner will directly abut and engage the stopper to move the stopper in a proximal direction relative to the medicament container holder during the dose delivery.