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    • 5. 发明授权
    • Catheter introducer assembly with needle shielding device
    • 导管插管器组件带针屏蔽装置
    • US5409461A
    • 1995-04-25
    • US127722
    • 1993-09-28
    • Christopher P. Steinman
    • Christopher P. Steinman
    • A61M25/06A61M5/00
    • A61M25/0637A61M25/0618Y10S128/917
    • A winged catheter introducer is disclosed. The catheter introducer has a catheter, a robe attached to the catheter and a winged intermediate member between the catheter and the robe. Within the catheter and the robe is a needle with a stylet attached to it. The stylet is attached to a hub which facilitates the pulling of the needle out of the catheter and through the robe. Attached to the robe is an adapter with a septum attached to it. The needle is provided with an opening extending from the needle wall to the needle lumen. A shielding device is provided which is attached to the adapter. The shielding device includes a needle container which is designed to trap the needle. A needle shield is provided inside the needle container. The needle is provided with an area of enlarged diameter. This area of enlarged diameter interacts with the needle shield when the needle is withdrawn from the catheter and robe and into the needle container. The needle shield is provided with an orifice through which the needle and stylet can fit but through which the area of enlarged diameter cannot pass. When the needle is withdrawn from the catheter and tube and into the needle container, it is trapped by the needle shield. The needle shield is also provided with a transverse wall which snaps over the point of the needle.
    • 公开了一种翼状导管导引器。 导管导引器具有导管,连接到导管的长袍和导管和长袍之间的有翅的中间构件。 在导管内,长袍是带有探针的针。 探针连接到一个轮毂上,这样便于将针从导管拉出并穿过长袍。 连接在长袍上的是带有隔垫的适配器。 针设置有从针壁向针内腔延伸的开口。 提供了一个连接到适配器的屏蔽装置。 屏蔽装置包括针容器,该针容器被设计成捕获针。 在针容器内设置针罩。 针设置有直径增大的区域。 当针从导管和长袍取出并进入针容器时,该扩大直径的区域与针罩相互作用。 针罩设有一个孔,针和探针可以穿过该孔,但扩大直径的区域不能穿过该孔。 当针从导管和管中取出并进入针容器时,它被针罩遮住。 针护罩还设有横向壁,该横向壁在针的点上卡扣。