Patent ID: 11957882
Assignee: ELI LILLY AND COMPANY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medication delivery device for use with a container having a container body holding a medication and defining an outlet, the container includes a piston disposed within the container body wherein advancement of the piston within the container body expels the medication through the outlet, the delivery device comprising:
a housing adapted to couple with the container; and
a drive assembly coupled with the housing and adapted to advance the piston within the container, wherein the drive assembly comprises:
a drive ribbon having a distal edge section and a proximal edge section, the drive ribbon being movable between a retracted configuration and an extended configuration about a drive axis, wherein a retracted portion of the drive ribbon in the retracted configuration defines a spiral and an extended portion of the drive ribbon in the extended configuration defines a helix, wherein a part of the distal edge section and a part of the proximal edge section associated with the retracted portion of the drive ribbon are not interlocked, and a part of the distal edge section and a part of the proximal edge section associated with the extended portion of the drive ribbon are interlocked, and
a thrust member engaged with the drive ribbon and rotatable relative to the drive ribbon and the housing, wherein, in response to the rotation of the thrust member, the drive ribbon is movable between the retracted configuration and the extended configuration without any rotation relative to the housing or the container.