Patent ID: 11911600
Assignee: BECTON DICKINSON FRANCE S.A.S.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. An injection device for injecting a composition contained in a medical container comprising:
a body configured to receive the medical container in a fixed position relative to the body;
a spring-loaded piston rod translationally movable inside the body along a spring axis, between a proximal rest position and a distal operative position wherein the spring-loaded piston rod engages a stopper of the medical container; and
a selective blocking mechanism comprising a braking member selectively tiltable relative to the spring-loaded piston rod between:
a blocking position wherein the braking member impinges on the spring-loaded piston rod so as to prevent any translational movement of the spring-loaded piston rod in a distal direction by a bracing effect; and
a releasing position wherein the braking member disengages from the spring-loaded piston rod so as to allow the spring-loaded piston rod to move towards the distal operative position under a spring force,

wherein the body comprises a container holder system configured to receive at least a portion of the medical container and to hold the medical container aligned with a movement direction along the spring axis of the spring-loaded piston rod so that when moving from the proximal rest position to the distal operative position, the spring-loaded piston rod engages the stopper of the medical container and pushes the stopper in the medical container to inject the composition, and
wherein the container holder system comprises:
an opening provided in a distal wall of the body that leads to a housing adapted to receive at least a portion of the medical container in a position aligned with the movement direction of the spring-loaded piston rod;
a slot provided in an outer wall of the body that leads to the housing; and
an insert adapted to be inserted in the slot to contact the medical container and to maintain the medical container in a fixed position in the housing.