Syringe for administering sequentially multiple doses of a medicament

A syringe for dispensing multiple doses of a liquid medicament one at a time sequentially comprising:

• a cylindrical barrel for containing said medicament, said barrel having a closed circular wall at one end thereof, with a single outlet opening for said medicament in said end wall;
• ejection means in said barrel for ejecting said medicament therefrom;
• a syringe cap rotatably mounted on said end of said barrel;
• guide means restraining said cap against axial movement on said barrel while permitting rotation of said cap, said cap having a circular top;
• ratchet means on said cap and barrel permitting only unidirectional rotation of said cap on said barrel and sequentially retaining said cap in a plurality of detent positions on said barrel;
• and
• a plurality of nozzles on said top of said cap, each of said nozzles having a discharge orifice and an axial passage for ejection of said medicament from each of said nozzles, each of said passages terminating in a nozzle hole in said circular top so that one of said nozzle holes is aligned with said opening in said end wall of said barrel in each of said detent positions of said cap on said barrel, whereby said medicament can be discharged from each nozzle in turn only when said cap is located in a corresponding detent position of said cap.