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    • 5. 发明授权
    • Trocar with improved blade attachment
    • 带有改进刀片附件的套管针
    • US5609604A
    • 1997-03-11
    • US543547
    • 1995-10-16
    • Richard F. SchwembergerDarrel PowellRandy R. StephensSalvatore Privitera
    • Richard F. SchwembergerDarrel PowellRandy R. StephensSalvatore Privitera
    • A61B17/34
    • A61B17/3417A61B2017/346
    • A trocar having an obturator with an obturator housing, a piercing tip and a rigid stem is disclosed. The piercing tip has a cutting edge surface and first and second spaced-apart legs generally parallel to each other extending away from the cutting edge surface. The stem is attached to the obturator housing at a first end of the obturator, and the legs of the piercing tip straddle the stem at an opposite end of the obturator. The straddling of the legs about the stem of the obturator fixes the piercing tip to the stem. The attachment of the piercing tip to the stem provides a secure attachment. The trocar is easy to manufacture and assemble, and the component parts can be readily disassembled. The piercing tip attachment is especially advantageous when the piercing tip is configured generally as a razor blade.
    • 公开了一种具有闭塞器的套管针,其具有闭塞器壳体,穿刺尖端和刚性杆。 穿刺尖端具有切割边缘表面,并且第一和第二间隔开的腿大体上彼此平行,远离切削刃表面延伸。 所述杆在所述闭孔器的第一端附接到所述闭孔器壳体,并且所述穿刺尖端的腿在所述闭孔器的相对端跨越所述杆。 围绕闭孔杆的腿的跨接将穿刺尖固定到杆上。 穿刺尖端连接到杆上提供牢固的附件。 套管针易于制造和组装,组件可以轻松拆卸。 当穿刺尖端通常配置为剃刀刀片时,穿刺尖端附件是特别有利的。