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    • 15. 发明授权
    • Articular cartilage harvesting knife
    • 关节软骨采摘刀
    • US6030400A
    • 2000-02-29
    • US173556
    • 1998-10-16
    • Lanny L. Johnson
    • Lanny L. Johnson
    • A61B10/00A61B10/02A61B17/00A61B17/32
    • A61B10/0233A61B10/0266A61B17/320016A61B2017/00349
    • An articular cartilage harvesting knife is disclosed which includes a rod having an elongated slot adjacent a distal end of the rod, the slot having a major axis lying substantially along the rod's longitudinal axis. An opening is provided in a sidewall of the rod which communicates with the slot. The proximal end of the opening defines a rearwardly extending inclined plane within the rod and an edge on the outer surface of the sidewall which, when sharpened, defines a cutting edge. When cutting edge is advanced under pressure along cartilage, the cartilage is stripped and moves into the slot and opening. In one embodiment of the invention the rod is hollowed so that stripped cartilage can be drawn from the slot and opening by suction.
    • 公开了一种关节软骨收获刀,其包括具有邻近所述杆的远端的细长狭槽的杆,所述狭槽具有基本上沿着杆的纵向轴线延伸的长轴。 在与该槽连通的杆的侧壁上设有开口。 开口的近端在杆内限定了向后延伸的倾斜平面,并且在侧壁的外表面上形成边缘,当锐化时,边缘限定了切削刃。 当切削刃在软骨的压力下前进时,软骨被剥离并移动到狭槽和开口中。 在本发明的一个实施例中,杆是中空的,使得剥离的软骨可以通过抽吸从狭槽和开口抽出。