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

Claim 13:
14. A medication delivery device comprising:
a housing;
a drive assembly coupled with the housing; and
a container having a container body holding a medication and defining an outlet, wherein the container is removably coupled to the housing, 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,
wherein the container body comprises a drive ribbon having a distal edge section and a proximal edge section, the drive ribbon having a retracted configuration and an extended configuration, 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 upon actuation of the drive assembly the drive ribbon is configured to be movable from the retracted configuration to the extended configuration to advance said piston within the container body, wherein the movement of the drive ribbon from the retracted configuration to the extended configuration defines a drive axis, wherein a radially outward facing surface of the drive ribbon comprises a plurality of regularly spaced surface projections, each of the surface projections bounded by intersecting first and second grooves.