A positive-displacement needleless access connector includes a housing with a female luer fitting, a base with a male luer fitting, and a valve element with a proximal end that creates a seal in the housing, a septum, and a distal end that fastens to the base to vent the septum the base and the valve element coupling to each other to create an assembly that has a greatest outer diameter smaller than an inner diameter of the housing.一種正排量無針接取連接器,其包括一具有母魯爾配件的外殼,一具有公魯爾配件的基座及一閥元件,其具有一在該外殼中產生密封的近端、一間隔及一固定至該基座以使該間隔排氣之遠端;該基座與閥元件彼此耦接以產生一具有最大外徑小於該外殼的內徑之總成。210‧‧‧基座211‧‧‧表面212‧‧‧空氣排氣孔213‧‧‧末端流動通道220‧‧‧閥元件230‧‧‧外殼231‧‧‧母魯爾配件233‧‧‧表面234‧‧‧肩部401‧‧‧公魯爾配件402‧‧‧母魯爾配件403‧‧‧流動通道404‧‧‧螺紋艙
