Patent ID: 11883636
Assignee: BAYER AKTIENGESELLSCHAFT
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A fluid injector system comprising:
at least one reciprocally operable piston having a piston head; and
a plunger engagement mechanism associated with the piston head, the plunger engagement mechanism comprising:
a cam sleeve disposed within the piston head and movable relative to the piston head, the cam sleeve having one or more tracks defining a cam surface;
an actuator operatively connected to the cam sleeve for moving the cam sleeve relative to the piston head; and
one or more pins at least partially disposed within the cam sleeve and movable within the one or more tracks with movement of the cam sleeve between a first, disengaged position, wherein the one or more pins are radially withdrawn into the piston head and a second, engaged position, wherein the one or more pins protrude radially outward relative to an outer surface of the piston head.