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    • 50. 发明授权
    • Surgical handpiece
    • 外科手机
    • US5478093A
    • 1995-12-26
    • US268008
    • 1994-06-28
    • Johann EiblGunter TeufelbergerJohann Fersterer
    • Johann EiblGunter TeufelbergerJohann Fersterer
    • A61B17/00A61B17/16A61C1/10A61C1/14A61M3/02B23B31/20
    • A61B17/1679A61B17/00A61B17/162A61B17/1688A61C1/10A61C1/14A61B17/1644A61B2017/1651A61B2217/007A61M3/0279Y10T279/17521Y10T279/17529
    • A handpiece for use in small-scale surgery and microsurgery, for example, oral surgery or surgery in the ear, nose and throat area includes a handpiece sleeve and a collet chuck which is rotatable about an axis and is arranged in the handpiece sleeve. The collet chuck is spring-biased and can be released by an actuating member. The collet chuck serves to hold a tool and is composed of two tubular members which are movable relative to each other along the axis of rotation of the collet chuck. A chucking lever for releasing the collet chuck is pivotable about a lever axis which is directed essentially in normal direction relative to the collet chuck axis. The actuating member includes a drive member which is movable in axial direction together with the two tubular members of the collet chuck, but does not rotate together with the tubular members. The drive member projects with a portion thereof in direction of the collet chuck axis into an undercut portion of the chucking lever.
    • 用于小规模手术和显微手术的手机,例如在耳鼻喉区域的口腔手术或手术,包括可绕轴线旋转并布置在手持套筒中的手柄套筒和夹头卡盘。 夹头卡盘是弹簧偏置的并且可以由致动构件释放。 夹头卡盘用于保持工具,并且由两个管状构件组成,这两个管状构件可沿着夹头卡盘的旋转轴线相对于彼此移动。 用于释放夹头卡盘的夹紧杆可围绕杠杆轴线枢转,杠杆轴线基本上相对于夹头卡盘轴线在法向方向上定向。 致动构件包括驱动构件,该驱动构件可与夹头卡盘的两个管状构件一起在轴向方向上移动,但不与管状构件一起旋转。 驱动部件将其一部分沿夹头卡盘轴线的方向突出成夹紧杆的底切部分。