Patent ID: 11865316
Assignee: ELI LILLY AND COMPANY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medication delivery device, comprising:
a disposable portion, comprising:
a housing having a distal end;
a therapeutic agent delivery assembly carried by the housing of the disposable portion, the therapeutic agent delivery assembly comprising:
a chamber comprising a passageway to carry a therapeutic agent;
a needle in communication with the passageway;

the therapeutic agent delivery assembly being translatable relative to the housing of the disposable portion from a stowed configuration to a deployed configuration, in the stowed configuration the needle being disposed proximally relative to the distal end of the housing of the disposable portion, and in the deployed configuration the needle at least partially extending distally from the distal end of the housing of the disposable portion;

a reusable portion detachably carrying the disposable portion, the reusable portion comprising:
a housing;
a drive mechanism carried by the housing of the reusable portion, the drive mechanism comprising:
a first rack and pinion mechanism;
a frame translatably carried by the housing of the reusable portion via the first rack and pinion mechanism;
a second rack and pinion mechanism coupled to the frame;
a plunger translatably carried by the frame via the second rack and pinion mechanism;

the first rack and pinion mechanism being actuatable to translate the frame relative to the housing of the reusable portion, the frame thereby translating the therapeutic agent delivery assembly relative to the housing of the disposable portion from the stowed configuration to the deployed configuration, and the second rack and pinion mechanism being actuatable to translate the plunger relative to the frame to deliver the therapeutic agent from the needle.