Rate-limited syringe

Abstract

The disclosure notably relates to a syringe. The syringe comprises a barrel forming a medicament reservoir therein. The medicament reservoir is capable of fluid communication with a needle hub at a distal end thereof. The syringe further comprises a stopper. The stopper seals the medicament reservoir. The stopper is slidable inside the barrel toward the distal end. The syringe further comprises a plunger assembly. The plunger assembly comprises a plunger rod and a spring. The spring is arranged between a distal end of the plunger rod and the stopper. The spring is configured to transmit to the stopper a forward axial movement of the plunger rod, thereby causing a forward axial movement of the stopper into the medicament reservoir in order to expel the medicament through the needle hub. The plunger rod is axially movable between a proximal extremal position and a distal extremal position. The spring is in a relaxed state when the plunger rod is at the proximal extremal position.

Dependencies are inferred from the claim text.