Patent ID: 11857769
Assignee: BECTON, DICKINSON AND COMPANY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. A drug delivery system for injecting a medicament, the system comprising:
a container configured to receive a medicament, the container comprising a stopper configured to move within the container and a closure;
a drive assembly comprising:
a plunger member configured to move the stopper within the container, the plunger member having a first position and a second position axially spaced from the first position, the plunger member defining a plurality of coded projections;
a biasing member configured to move the plunger member from the first position to the second position; and
a plunger actuation member moveable relative to the plunger member, the plunger actuation member having a first position where the plunger member is axially fixed relative to the plunger actuation member and a second position where the plunger member is axially moveable relative to the plunger actuation member;

a needle actuator assembly comprising a needle configured to be placed in fluid communication with the container, the needle moveable from a first position and a second position spaced from the first position, a portion of the needle actuator assembly is configured to engage the plunger actuation member to move the plunger actuation member from the first position to the second position;
a restriction member aligned with one of the plurality of coded projections and configured to engage one of the plurality of coded projections to restrict movement of the needle actuator assembly; and
a spacer assembly engaged with the stopper of the container and configured to be engaged with the plunger member.