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

Claim 0:
1. A drive assembly for a drug delivery system, the drive assembly comprising:
a plunger member configured to engage and move a stopper within a container, the plunger memeber having a first position and a second position axially spaced from the first position;
a biasing member configured to move the plunger member from the first position to the second position; and
a plunger actuation member telescopically received within the plunger member and coaxially rotatable relative to the plunger member, the plunger actuation member having a first rotational position where the plunger member is axially fixed relative to the plunger actuation member and a second rotational position where the plunger member is axially moveable relative to the plunger actuation member.