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    • 8. 发明授权
    • Tympanostomy tube and method for producing the same
    • 鼓膜造口管及其制造方法
    • US5645584A
    • 1997-07-08
    • US604607
    • 1996-02-21
    • Takayuki Suyama
    • Takayuki Suyama
    • A61F11/00A81F2/18
    • A61F11/002
    • Disclosed are a tympanostomy tube made of pure titanium or a titanium alloy comprising a lumen formed longitudinally in an elongated tubular member and a concavity inwardly formed on said elongated tubular member in a circumferential direction at right angles to a longitudinal direction thereof, said lumen being longitudinally different in diameter and having a larger diameter at a position at which the concavity is not formed than at a position at which the concavity is formed; and a method for producing a tympanostomy tube comprising the steps of drilling a hole longitudinally in a rod member of pure titanium or a titanium alloy to form an elongated tubular member, and forming a concavity on said elongated tubular member in a circumferential direction at right angles to a longitudinal direction thereof.
    • 公开了一种由纯钛或钛合金构成的鼓膜造口管,其包括在细长管状构件中纵向形成的内腔和在所述细长管状构件上沿与其纵向方向成直角的圆周方向向内形成的凹部,所述内腔纵向 在形成凹部的位置处的直径不同于在形成凹部的位置处的直径较大的直径; 以及用于制造鼓膜造口管的方法,包括以下步骤:在纯钛或钛合金的杆构件中纵向钻孔以形成细长管状构件,并且在所述细长管状构件上沿圆周方向以直角形成凹陷 到其纵向方向。