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    • 5. 发明授权
    • Resecting tool with independent variable axial extension for tool implements and guide sleeves
    • 用于刀具和导向套筒的独立可变轴向延伸的切削工具
    • US06209886B1
    • 2001-04-03
    • US09303474
    • 1999-04-30
    • Larry Dale EstesRay E. UmberGary B. Gage
    • Larry Dale EstesRay E. UmberGary B. Gage
    • B23B3120
    • A61B17/162A61B17/1633B23B31/201B23B51/126Y10T279/17521Y10T279/17538Y10T279/3406Y10T408/957
    • A resecting tool contains a rotatable chuck inside a base for engaging the drive shaft of a motor. The chuck extends into a tubular casing that has an outer actuator sleeve. The sleeve is limited to rotation relative to the casing and is used to move a pair of locking elements or balls in separate helical slots in the casing. Each ball is seated in a collar that abuts a collet receiver inside the casing. During implement changeover, the collar abuts the collet receiver and acts as a brake to prevent accidental actuation of the chuck of the tool. The collet receiver is spring-biased into contact with a first collet which closely receives a tool implement within the resecting tool. The sleeve is used to manipulate the collet to clamp onto and unclamp the tool implement. A collet coupling is located on the front end of the casing and has a collet nut on its forward end. The collet nut houses a second collet with a serpentine cut for engaging and retaining a guide sleeve for supporting the tool implement. Both collets are designed to engage and lock onto tool implements and guide sleeves at variable distances along their axial lengths.
    • 切割工具在基座内包含可旋转卡盘,用于接合马达的驱动轴。 卡盘延伸到具有外致动器套筒的管状外壳中。 套筒被限制为相对于壳体的旋转,并且用于将一对锁定元件或球移动到壳体中的分开的螺旋槽中。 每个球都坐在一个与套管内的夹头接收器相邻的轴环上。 在工具切换期间,套环与夹头接收器邻接,并用作制动器,以防止意外致动工具的卡盘。 夹头接收器被弹簧偏置成与第一夹头接触,第一夹头紧密地接收在切割工具内的工具。 套筒用于操纵夹头以夹紧和松开工具。 夹头联接器位于壳体的前端,并在其前端具有夹头螺母。 夹头螺母装有一个具有蛇形切割的第二夹头,用于接合和保持用于支撑工具的导向套筒。 两个夹头均设计成沿着其轴向长度可变距离地接合和锁定工具和导向套筒。
    • 7. 发明授权
    • Multiple chuck resecting tool
    • 多卡盘切割工具
    • US5893851A
    • 1999-04-13
    • US837446
    • 1997-04-18
    • Ray E. UmberLarry Dale EstesTownesend R. Scantlebury
    • Ray E. UmberLarry Dale EstesTownesend R. Scantlebury
    • A61B17/00A61B17/16B23B31/107A61B17/56
    • B23B31/1071A61B17/162A61B2017/00477Y10T279/17752
    • A coupling device attaches to a surgical resecting instrument with a motorized shaft for rotating surgical implements. The device houses a primary shaft which can be directly attached to the motorized shaft, and a secondary shaft which can be attached to the primary shaft through a hexagonally-shaped drive attachment with a bore. The primary shaft has several apertures with balls that engage an annular recess in the shank of a first implement to restrict its axial movement. The primary shaft also has a torque shoulder for engaging a torque shoulder on the first implement. If the first implement is removed, the secondary shaft can be installed to receive a second implement with a diameter smaller than that of the first implement. The secondary shaft also has several apertures with balls that engage an annular recess in a second implement shaft to restrict axial movement. The secondary shaft has axially spaced apart torque shoulders for engaging a torque shoulder on the second implement.
    • 联接装置连接到具有用于旋转手术器械的电动轴的手术切除仪器。 该装置容纳可以直接附接到电动轴的主轴,以及可以通过具有孔的六角形驱动附件而附接到主轴的次级轴。 主轴具有几个具有球的孔,其接合第一工具的柄中的环形凹部以限制其轴向运动。 主轴还具有用于接合第一工具上的扭矩肩部的扭矩肩部。 如果第一器具被移除,则可以安装次轴以接收直径小于第一器具的直径的第二器具。 辅助轴还具有几个具有球的孔,其接合第二工具轴中的环形凹部以限制轴向运动。 副轴具有用于接合第二工具上的扭矩肩部的轴向间隔开的扭矩肩部。