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    • 1. 发明授权
    • Torquable catheter
    • 可折叠导管
    • US5334145A
    • 1994-08-02
    • US945512
    • 1992-09-16
    • Ingemar H. LundquistRussell B. Thompson
    • Ingemar H. LundquistRussell B. Thompson
    • A61M25/01A61M25/00
    • A61M25/0138A61M25/0147
    • A torquable catheter with a flexible elongate tubular member which has proximal and distal extremities and a longitudinal axis. The tubular member has a first portion and second portions, each having proximal and distal extremities. The first portion has its proximal extremity adjacent to the proximal extremity of the tubular member, and is comprised of a plastic torque tube which has a cylindrical wall that is circular in cross-section. The cylindrical wall has fibers disposed in it to provide good torque characteristics. The second portion is adjacent the distal extremity of the flexible elongate tubular member and is comprised of a metal torque tube which has at least one slot in it extending substantially transversely of the longitudinal axis. A flexible sleeve encases the metal torque tube. A joint is formed between the proximal extremity of the metal torque tube and the distal extremity of the plastic torque tube. A handle is mounted on the proximal extremity of the flexible elongate member and is used to cause bending of the of the second portion.
    • 具有柔性细长管状构件的扭转导管,其具有近端和远端以及纵向轴线。 管状构件具有第一部分和第二部分,每个部分具有近端和远端。 第一部分具有邻近管状构件的近端的近端,并且由塑料扭矩管构成,该塑料扭矩管具有横截面为圆形的圆柱形壁。 圆柱形壁上布置有纤维,以提供良好的扭矩特性。 第二部分与柔性细长管状构件的远端相邻,并且由金属扭矩管组成,其中至少有一个槽基本上横向于纵向轴线延伸。 柔性套筒包住金属扭矩管。 在金属扭矩管的近端和塑料扭矩管的远端之间形成接头。 手柄安装在柔性细长构件的近端上,并用于引起第二部分的弯曲。
    • 10. 发明授权
    • Drug injection device
    • 药物注射装置
    • US3990445A
    • 1976-11-09
    • US538371
    • 1975-01-03
    • Ingemar H. Lundquist
    • Ingemar H. Lundquist
    • A61M39/04
    • A61M39/04
    • A drug injection device (or what some might prefer to call a "drug injection site") comprises a doubled wall, doughnut-shaped cylinder adapted to be inserted into an intravenous delivery tube. Preferably it is made of a pair of identically shaped elements having an outer end an inner circular wall, both of which, when the two elements are placed together in opposed relationship, form continuous walls of a doughnut or O-ring shape. The interior of the doughnut is filled with a soft surgical grade rubber which, when under compression, permits ready insertion of a hypodermic needle therethrough but which, when the needle is withdrawn, is self-sealing. A plurality of radially aligned apertures, or windows, are provided in the inner and outer walls, so that the hypodermic needle can be inserted through the outer wall, through the rubber sealing element and then through the aligned window in the inner wall. Preferably, the windows are three in number, equally spaced around the circumference of the device, so that when a needle is inserted through the respective windows and the rubber sealing element, it will be stopped by an opposing wall of the inner solid surface of the inner wall of the device.
    • 药物注射装置(或者某些人可能更喜欢称之为“药物注射部位”)包括一个双壁,适合插入到静脉输送管中的环形圆筒。 优选地,它由一对相同形状的元件制成,具有外端为内圆形壁,当两个元件以相对关系放置在一起时,两个元件都形成环形或O形圈的连续壁。 圆环的内部填充有柔软的手术级橡胶,当处于压缩状态时,允许皮下注射针准备好插入,但是当取出针时,其是自密封的。 多个径向排列的孔或窗口设置在内壁和外壁中,使得皮下注射针可以穿过外壁穿过橡胶密封元件,然后穿过内壁中对齐的窗口插入。 优选地,窗口数量为三个,围绕设备的圆周等间隔开,使得当针穿过相应的窗口和橡胶密封元件插入时,其将被内部固体表面的相对壁停止 设备的内壁。