LOCKABLE SYRINGES ASSEMBLIES AND RELATED DEVICES AND METHODS Russian patent published in 2018 - IPC A61M5/315 

FIELD: medicine.

SUBSTANCE: invention relates to medical technology, namely to syringe assemblies. Syringe comprises: a barrel having an inner diameter and comprising a proximal end and a distal end; plunger; first partial ring located inside the barrel, functionally connected to the plunger and designed to limit or permit a longitudinal movement of the plunger based on the rotational position of the plunger; and a fixation region located at the proximal end of the barrel, wherein the fixation region having an inner diameter that exceeds an inside diameter of the barrel.

EFFECT: wherein the fixation region is configured to retain the first partial ring in the barrel at the proximal end, and the first partial ring is located within the fixation region.

23 cl, 18 dwg