SCHILLER, ERIC,QUINN, MICHAEL,TORRES, JOHANNA,GUAN, E.,JU, GANG,ECONOMOU, ANTHONY
申请号：
CA2924634
公开号：
CA2924634C
申请日:
2008.06.04
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
A positive displacement stopper for attachment with a plunger rod for use within a syringe barrel, comprising a main body having a closed front end and a first body portion having a first diameter； a shoulder extending around a perimeter of the first body portion of the main body； a core member integrally formed with the main body adjacent the closed front end, the core member including a nose portion, the nose portion adapted for contacting an interior surface of an outlet opening of the syringe barrel； and a perimetrical skirt extending toward the front end of the main body, the skirt cooperating the shoulder for trapping an air pocket therein upon insertion of the stopper within the syringe barrel the that upon release of a force on the plunger rod, fluid remaining within the syringe barrel is forced through the outlet opening through positive displacement thereof.
