Andrew BRYANT,Heinrich BUETTGEN,Wolfgang PAPST,Marie PICCI
申请号：
US16409291
公开号：
US20190365565A1
申请日:
2019.05.10
申请国别(地区):
US
年份:
2019
代理人:
摘要：
The invention provides a syringe for use in an ophthalmic injection. The syringe comprises a body, a stopper and a plunger. The body comprises an outlet at an outlet end and the stopper is arranged within the body such that a front surface of the stopper and the body define a variable volume chamber from which a fluid can be expelled though the outlet. The plunger comprises a plunger contact surface at a first end and a rod extends between the plunger contact surface and a rear portion. The plunger contact surface is arranged to contact the stopper but not couple thereto, such that the plunger can be used to force the stopper towards the outlet end of the body, reducing the volume of the variable volume chamber, but not to move the stopper away from the outlet end.
