EFFECT OF DURATION OF STOPPING A DISPOSABLE SYRINGE PLUNGER ROD BEFORE LIQUID EXTRUSION STAGE ON THE AMOUNT OF FORCE REQUIRED TO MOVE IT
The article is devoted to a quantitative assessment of the influence of duration of stopping a syringe plunger rod between the stages of liquid suction and its subsequent extrusion on the amount of force required for its movement, as well as to an experimental data-based substantiation of the value of this parameter, when testing syringes. A device has been created that detects and measures the amount of force required to move a plunger rod of disposable syringes, and a testing procedure has been developed for conducting experiments to assess the impact of duration of stopping a plunger rod between the stages of liquid suction and subsequent extrusion on the value of this force for two- and three-component 3 ml syringes.