Patent ID: 9192725
Filing Date: 2015-11-24
Classification: A61M

Abstract:
1. A medicine syringe comprising a syringe barrel, a piston and a plunger rod, said syringe barrel being provided with: said plunger rod being in a form of a rod having the piston arranged at an end portion thereof and a plunger flange formed at an opposite end portion thereof, wherein: the chamber in the main body and said hollow bore in the injection nozzle portion have a total capacity of not greater than 0.5 mL, a reduced diameter portion is defined by the injection port, and the chamber and hollow bore have a same diameter up to the reduced diameter portion, the injection nozzle portion is configured so that an injection needle to be used with the medical syringe is held in the injection port with a proximal end of the injection needle not extending into the injection nozzle portion beyond the reduced diameter portion, and the chamber and hollow bore are formed such that the piston is slidable in a range of from 20 to 100 mm and allowed to slide liquid-tight into the hollow bore of the injection nozzle portion beyond the chamber located in the main body wherein the cylindrical main body and the injection nozzle portion are of unitary construction.