SYRINGE FOR DISPENSING MEASURED QUANTITIES OF A MEDICAMENT

摘要

A disposable syringe (Figure 2, 10) for dispensing a metered dosage of a material includes a plunger rod (14) which is axially movable within a syringe barrel (12) for dispensing the material. The plunger rod (14) includes a rail section (18) located outside the syringe barrel (12), and a slidable stop member (16) is secured to the rail section (18) for adjusting the volume of material to be dispensed. The adjustable stop member (16) includes a knife edge (62) for embedding into a surface (32) of the rail section of the plunger rod (14) to lock the stop member (16) in a desired position.