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14 条记录 (耗时 0.044 秒)

    Syringes and plungers for use therein
    12.
    发明授权
    Syringes and plungers for use therein 失效
    注射器和柱塞用于其中

    公开(公告)号：US06224577B1

    公开(公告)日：2001-05-01

    申请号：US09033264

    申请日：1998-03-02

    申请人： Salvatore J. Dedola ,  Mark W. Hitchins

    发明人： Salvatore J. Dedola ,  Mark W. Hitchins

    IPC分类号： A61M500

    CPC分类号： A61M5/31513 ,  A61M2005/31521

    摘要： The present invention provides a plunger for use in a syringe and a syringe comprising such a plunger. The plunger includes a pressure member extending around the circumference of a generally cylindrical body of the plunger. The pressure member is in substantially sealing contact with the plunger body. The pressure member is sufficiently flexible to be forced radially outwardly to exert force upon the inner wall of the syringe as a result of increased fluid pressure upon forward motion of the plunger. The pressure member thereby forms a substantially sealing engagement with the inner wall of the syringe. In one embodiment, the pressure member comprises a flange attached at a rearward portion of the flange to a body of the plunger. The flange extends forward and radially outward to form a circumferential channel between the flange and the body of the plunger. In another embodiment, the pressure member comprises a resilient O-ring seated in a seating formed around the circumference of the body of the plunger. The seating comprises a ramp portion having a forward radius that is smaller than a rearward radius thereof.

    摘要翻译： 本发明提供一种用于注射器的柱塞和包括这种柱塞的注射器。 柱塞包括围绕柱塞的大致圆柱形主体的圆周延伸的压力构件。 压力构件与柱塞本体基本上密封接触。 由于柱塞向前运动时的流体压力增加，压力构件足够柔软以被迫径向向外施加到注射器的内壁上。 因此，压力构件与注射器的内壁形成基本密封的接合。 在一个实施例中，压力构件包括在凸缘的后部附接到柱塞的主体的凸缘。 凸缘向前并径向向外延伸，以在凸缘和柱塞主体之间形成圆周通道。 在另一个实施例中，压力构件包括位于围绕柱塞主体的圆周形成的座中的弹性O形环。 座椅包括具有小于其后半径的前半径的斜坡部分。

    SYRINGE ASSEMBLIES, METHODS OF FORMING SYRINGE ASSEMBLIES AND ADAPTERS FOR FORMING SYRINGE ASSEMBLIES
    14.
    发明申请
    SYRINGE ASSEMBLIES, METHODS OF FORMING SYRINGE ASSEMBLIES AND ADAPTERS FOR FORMING SYRINGE ASSEMBLIES 有权
    注射器组件，形成SYRINGE组件的方法和用于形成SYRINGE组件的适配器

    公开(公告)号：US20110106015A1

    公开(公告)日：2011-05-05

    申请号：US12766411

    申请日：2010-04-23

    申请人： Edward P. Liscio ,  Luis Castillo ,  Michael McNeill ,  Mark W. Hitchins

    发明人： Edward P. Liscio ,  Luis Castillo ,  Michael McNeill ,  Mark W. Hitchins

    IPC分类号： A61M5/31 ,  B23P17/04

    CPC分类号： A61M5/31565 ,  A61M5/14546 ,  A61M2005/14553 ,  A61M2005/3125 ,  A61M2205/3306 ,  A61M2207/00 ,  Y10T29/49826

    摘要： A syringe assembly connectible to an injector including a syringe interface and a drive member includes a syringe portion including a barrel section to contain fluid to be pressurized and an outlet in fluid connection with the barrel section. The syringe assembly also includes an adapter formed separately from the syringe portion and including a plurality of sections. At least two sections of the plurality of sections are engageable to nonremovably connect the adapter to the syringe portion. In a number of embodiment, the adapter includes only two section the engage to nonremovably connect the adapter to the syringe portion. The adapter further includes a mounting mechanism adapted to be connected to the injector syringe interface. The adapter can also include a passage in operative connection with the barrel section after connection of the adapter to the syringe portion so that upon connection of the adapter with the syringe portion, the drive member can pass through the passage to impart motion to a plunger slidably positionable within the barrel section.

    摘要翻译： 可连接到包括注射器接口和驱动构件的注射器的注射器组件包括注射器部分，其包括用于容纳待加压流体的筒体部分和与筒部分流体连接的出口。 注射器组件还包括与注射器部分分开形成并包括多个部分的适配器。 多个部分中的至少两个部分可接合以将适配器不可移除地连接到注射器部分。 在多个实施例中，适配器仅包括接合以将适配器不可移除地连接到注射器部分的两个部分。 适配器还包括适于连接到注射器注射器接口的安装机构。 适配器还可以包括在将适配器连接到注射器部分之后与筒体部分可操作地连接的通道，使得当适配器与注射器部分连接时，驱动构件可以穿过通道以使滑动件 可定位在桶部分内。