公开(公告)号：US20230338661A1

公开(公告)日：2023-10-26

申请号：US18025698

申请日：2021-09-10

申请人： NIPRO CORPORATION

发明人： Ryo OGINO ,  Mitsuru HASEGAWA ,  Yuma SHIRAISHI

IPC分类号： A61M5/28 ,  A61M5/19 ,  A61M5/315

CPC分类号： A61M5/28 ,  A61M5/19 ,  A61M5/31513

摘要： A pre-filled syringe includes a tubular container, a front end gasket, a rear end gasket, an intermediate gasket, a medicine, a liquid medicine, and a plunger. The tubular container has a barrel and a nozzle portion. The barrel has an inner peripheral surface and a protruding inner side surface. A groove is formed in an outer peripheral surface of the intermediate gasket. The front end gasket has a rear-end pressure-contact portion. The nozzle portion has an accommodation portion. The accommodation portion has a bottom wall, a peripheral wall, and a supporting portion. The rear-end pressure-contact portion is in pressure contact with the inner peripheral surface of the barrel in an abutment state in which the liquid medicine is introduced in the front chamber and the front end portion of the front end gasket is in abutment with the supporting portion.