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    Surgical instrument with a collet locking and indexing system
    2.
    发明授权
    Surgical instrument with a collet locking and indexing system 有权
    手术器具带夹头锁定和分度系统

    公开(公告)号：US06780189B2

    公开(公告)日：2004-08-24

    申请号：US10164880

    申请日：2002-06-07

    申请人： Durrell G. Tidwell ,  Rex Wesley Shores

    发明人： Durrell G. Tidwell ,  Rex Wesley Shores

    IPC分类号： A61B1716

    CPC分类号： A61B17/162 ,  A61B17/1633

    摘要： A surgical instrument is provided for cutting bone and other tissue. The surgical instrument includes a motor assembly, a collet, a locking nut, and an attachment. The motor assembly includes a cavity having a groove on an inner surface that corresponds to a groove on an outer surface of the collet. The corresponding grooves form an aperture when the collet is inserted into the cavity. The insertion of a pin into the aperture prevents rotation of the collet relative to the cavity. The locking nut is placed over the collet and fastened to the motor assembly to secure the collet to the motor assembly. The attachment is fastened to the collet by placing protuberances on the attachment into corresponding apertures on the collet. The consistent alignment provided by the locking and indexing system enables the motor assembly and attachment to receive alignment markings before the surgical instrument is assembled.

    摘要翻译： 提供用于切割骨骼和其他组织的手术器械。 手术器械包括马达组件，夹头，锁定螺母和附件。 所述马达组件包括在内表面上具有与所述夹头的外表面上的凹槽对应的凹槽的空腔。 当夹头插入空腔时，相应的凹槽形成孔。 将销插入孔径防止夹头相对于空腔旋转。 将锁定螺母放置在夹头上并且紧固到马达组件以将夹头固定到马达组件上。 将附件通过将附件上的突起放置在夹头上的相应孔中来将连接件紧固到夹头。 由锁定和分度系统提供的一致的对准能够使电机组件和附件在组装手术器械之前接收对准标记。

    Redundant safety lock mechanism
    3.
    发明授权
    Redundant safety lock mechanism 失效
    冗余安全锁机构

    公开(公告)号：US5989257A

    公开(公告)日：1999-11-23

    申请号：US38613

    申请日：1998-03-11

    申请人： Durrell G. Tidwell ,  Larry D. Estes ,  Gary B. Gage

    发明人： Durrell G. Tidwell ,  Larry D. Estes ,  Gary B. Gage

    IPC分类号： A61B17/00 ,  A61B17/16

    CPC分类号： A61B17/162 ,  A61B2017/0046 ,  Y10T279/17196 ,  Y10T279/17752

    摘要： A surgical instrument has a motor which rotates a tubular shaft about an axis. The shaft drives an implement and has an aperture which contains a ball. When the implement is installed, the ball extends through the aperture to engage the implement and lock it in. The tool has an actuation sleeve which is axially movable between locked and released positions for engaging and disengaging the ball to the implement. The actuation sleeve has an axial slot and a safety sleeve located radially outward from the actuation sleeve. The safety sleeve has a pin which extends radially inward and a cylinder extending radially outward. The cylinder contains a ball which is biased inward. The outer surface of the tool has a pair of detents for receiving the ball. The safety sleeve has locked and unlocked positions. In the unlocked position, the pin is aligned with the slot and the ball engages the first detent to permit the actuation sleeve to move between the locked and released positions. In the locked position, the safety sleeve is rotated so that the pin is misaligned with the slot and the ball engages the second detent to prevent the actuation sleeve from moving to the released position.

    摘要翻译： 外科器械具有使管状轴围绕轴线旋转的马达。 轴驱动工具并具有包含球的孔。 当工具安装时，球延伸穿过孔口以接合工具并将其锁定。工具具有致动套筒，该致动套筒可在锁定和释放位置之间轴向移动，用于使球与工具接合和脱离。 致动套筒具有轴向槽和从致动套筒径向向外定位的安全套筒。 安全套具有径向向内延伸的销和径向向外延伸的缸。 圆筒包含向内偏置的球。 工具的外表面具有一对用于接收球的棘爪。 安全套有锁定和解锁位置。 在解锁位置，销与槽对准，并且球接合第一棘爪以允许致动套筒在锁定位置和释放位置之间移动。 在锁定位置，安全套被旋转，使得销与槽不对准，并且球接合第二制动器，以防止致动套筒移动到释放位置。

    Replicator for resecting bone to match a pattern
    5.
    发明授权
    Replicator for resecting bone to match a pattern 失效
    用于切割骨骼以匹配模式的复制器

    公开(公告)号：US5540692A

    公开(公告)日：1996-07-30

    申请号：US274998

    申请日：1994-07-13

    申请人： Durrell G. Tidwell

    发明人： Durrell G. Tidwell

    IPC分类号： A61B17/15 ,  A61B17/00

    CPC分类号： A61B17/15 ,  A61B17/155

    摘要： A replicator is provided for precisely resecting bone into a desired shape of a pattern. A pattern holder and a bone holder are spaced apart from each other, and rotatably mounted to a cylindrical shaft for indexing through corresponding predetermined angular increments about two parallel axes, which are perpendicular to an axis of the cylindrical shaft. A linkage means connects a probe and cutting tool to a frame for allowing free movement of the probe and cutting tool with respect to the frame, in three dimensions, while maintaining end tips of the probe and cutting tool parallel to the axis of the shaft. The probe and cutting tool are moved to trace the tip of the probe over an exterior surface of the pattern while operating the cutting tool to cut contours of the pattern into the bone. The pattern and bone holders may be rotated with the cylindrical shaft about the axis of the cylindrical shaft. The pattern and bone holders are rotated through the corresponding angular increments about the two parallel axes and are rotated together about the axis of the cylindrical shaft, for presenting the pattern and bone to the probe and cutting tool for different angles of approach.

    摘要翻译： 提供了一种用于将骨骼精确切割成图案所需形状的复制器。 图案保持器和骨保持器彼此间隔开，并且可旋转地安装到圆柱形轴上，用于沿垂直于圆柱形轴的轴线的两个平行轴线相应的预定角度增量进行分度。 联动装置将探针和切割工具连接到框架，以允许三维地使探针和切割工具相对于框架自由移动，同时保持探头和切割工具的端部平行于轴的轴线。 移动探针和切割工具以在操作切割工具的同时将图案的轮廓切割成骨头，从而在图案的外表面上追踪探针的尖端。 图案和骨保持器可以围绕圆柱形轴的轴线与圆柱形轴一起旋转。 图案和骨保持器围绕两个平行轴线旋转相应的角度增量，并且围绕圆柱形轴的轴线一起旋转，以将图案和骨骼呈现到探针和切割工具，以达到不同的接近角度。

    Resecting tool for magnetic field environment
    7.
    发明授权
    Resecting tool for magnetic field environment 失效
    磁场环境切割工具

    公开(公告)号：US5782836A

    公开(公告)日：1998-07-21

    申请号：US690634

    申请日：1996-07-30

    申请人： Ray Umber ,  Durrell G. Tidwell ,  Larry Dale Estes ,  Townesend R. Scantlebury

    发明人： Ray Umber ,  Durrell G. Tidwell ,  Larry Dale Estes ,  Townesend R. Scantlebury

    IPC分类号： A61B17/00 ,  A61B17/16 ,  A61B17/32

    CPC分类号： A61B17/162 ,  A61B17/1633 ,  A61B17/32002 ,  A61B17/1615 ,  A61B17/1628 ,  A61B2017/00544 ,  A61B2017/00831 ,  Y10S415/904

    摘要： A pneumatic surgical tool for cutting bone during surgical procedures includes a pneumatic motor having a rotary shaft, a resecting tool having a cutting element rotated by the motor, a sleeve to surround and support the resecting tool, anti-friction bearings for further rotatably supporting the resecting tool, and a chuck for connecting the resecting tool to a spindle of the rotary shaft. The motor housing, rotor, spindle, and chuck are created from titanium. The bore of the housing and the cutting tip of the resecting tool have thin hard metal cases, such as titanium nitride, titanium aluminum nitride, or titanium carbon nitride.

    摘要翻译： 一种用于在外科手术过程中切割骨骼的气动手术工具包括具有旋转轴的气动马达，具有由马达旋转的切割元件的切割工具，围绕并支撑切割工具的套筒，用于进一步可旋转地支撑 切割工具和用于将切割工具连接到旋转轴的主轴的卡盘。 电机外壳，转子，主轴和卡盘由钛制成。 壳体的孔和切割工具的切割尖端具有薄的硬金属壳体，例如氮化钛，氮化铝钛或氮化碳钛。

    Replicator for resecting bone to match a pattern
    8.
    发明授权
    Replicator for resecting bone to match a pattern 失效
    用于切割骨骼以匹配模式的复制器

    公开(公告)号：US5190547A

    公开(公告)日：1993-03-02

    申请号：US883685

    申请日：1992-05-15

    申请人： Forest C. Barber, Jr. ,  Durrell G. Tidwell

    发明人： Forest C. Barber, Jr. ,  Durrell G. Tidwell

    IPC分类号： A61B17/16 ,  A61B17/17

    CPC分类号： A61B17/17 ,  A61B17/16 ,  A61B17/1675 ,  A61B17/1764 ,  A61B2017/1602

    摘要： A device for resecting a bone utilizes a pattern to control the cutting tip for the resection. The device has a frame with a pattern holder and a bone holder. A tool holder mounts to the frame by means of a four bar linkage assembly. The tool holder has a cutting tool and a probe mounted to it. The four bar linkage allows three-dimensional movement of the tool holder, but constrains the tool holder to always be in parallel with a line extending through the pattern holder and bone holder.

    摘要翻译： 用于切除骨骼的装置利用图案来控制用于切除的切割尖端。 该装置具有带有图案保持架和骨架的框架。 工具架通过四杆连杆组件安装到框架上。 刀架具有安装在其上的切削工具和探头。 四杆连杆允许工具夹具的三维运动，但是限制工具架总是与延伸穿过图案保持架和骨架的线平行。