CAS system for condyle measurement
    1.
    发明授权
    CAS system for condyle measurement 有权
    CAS系统用于髁测量

    公开(公告)号:US08965483B2

    公开(公告)日:2015-02-24

    申请号:US13234227

    申请日:2011-09-16

    摘要: A computer assisted surgery system for conducting orthopedic surgery on a knee joint includes a condyle digitizer having a posterior condyle abutment surface defining a first plane and a distal condyle abutment surface defining a second plane perpendicular to the first plane, and a trackable member which is locatable and trackable in three dimensional space by the computer assisted surgery system to define at least orientation of the condyle digitizer in real time. A computer determines a most remote reference point of the femur of the knee joint lying within at least one of the first and second planes when the condyle digitizer is abutted against condyles of the femur such that the posterior condyle abutment surface abuts a posterior side of the condyles and the distal condyle abutment surface abuts a distal side of the condyles.

    摘要翻译: 用于在膝关节进行矫形外科手术的计算机辅助手术系统包括:髁数字化仪,其具有限定第一平面的后髁邻接表面和限定垂直于第一平面的第二平面的远侧髁邻接表面;以及可定位的可跟踪构件 并通过计算机辅助手术系统在三维空间中跟踪,以便至少定义髁数字化仪的取向。 当髁数字化仪抵靠股骨的髁时,计算机确定位于第一和第二平面中的至少一个中的膝关节股骨的最远的参考点,使得后髁邻接表面邻接于第 髁突和远端髁突邻接表面邻接髁的远侧。

    Surgical universal positioning block and tool guide
    3.
    发明授权
    Surgical universal positioning block and tool guide 有权
    手术通用定位块和刀具导轨

    公开(公告)号:US08147496B2

    公开(公告)日:2012-04-03

    申请号:US12771396

    申请日:2010-04-30

    IPC分类号: A61F5/00

    摘要: A positioning block for use in knee surgery includes a rotational mounting removably engageable to the bone element by a multi-axial fastener such that the mounting element is selectively rotatable relative to the bone element about at least two substantially perpendicular axes of rotation. A guide body portion is engaged with the rotational mounting element such that it is translatable relative thereto along while being rotationally fixed relative to the mounting element. The guide body portion is moveable relative to the bone element in at least three degrees of freedom, the three degrees of freedom including at least two rotational degrees of freedom and at least one translational degree of freedom. A trackable member on the guide body portion is identified and tracked by a computer assisted surgery system.

    摘要翻译: 用于膝关节手术的定位块包括通过多轴向紧固件可移除地与骨元件接合的旋转安装件,使得安装元件围绕至少两个基本上垂直的旋转轴线相对于骨元件选择性地可旋转。 引导体部分与旋转安装元件接合,使得其可相对于其旋转地相对于安装元件旋转地固定。 引导体部分能够以至少三个自由度相对于骨骼元件移动,所述三个自由度包括至少两个旋转自由度和至少一个平移自由度。 通过计算机辅助手术系统识别和追踪引导体部分上的可跟踪部件。

    TOOL AND METHOD FOR DIGITAL ACQUISITION OF A TIBIAL MECHANICAL AXIS
    4.
    发明申请
    TOOL AND METHOD FOR DIGITAL ACQUISITION OF A TIBIAL MECHANICAL AXIS 有权
    用于数字采集机械轴的工具和方法

    公开(公告)号:US20120053594A1

    公开(公告)日:2012-03-01

    申请号:US12872469

    申请日:2010-08-31

    IPC分类号: A61B17/56

    摘要: A tool for digitizing a mechanical axis of a tibia using a computer-assisted surgery system is described. The tool includes upper and lower mounting ends interconnected by an alignment rod extending therebetween. The upper mounting end is releasably fastenable to an upper reference point on a tibial plateau and the lower mounting end includes a self-centering malleoli engaging mechanism having opposed caliper arms displaceable in a common plane relative to each other for clamping engagement with the medial and lateral malleoli of the ankle. At least one trackable member is mounted to the alignment rod of the tool and is in communication with the computer assisted surgery system for providing at least orientation information of the alignment rod. The mechanical axis of the tibia is parallel to the alignment rod and extends between the upper and lower reference points when the tool is mounted on the tibia.

    摘要翻译: 描述了使用计算机辅助手术系统对胫骨的机械轴进行数字化的工具。 该工具包括通过在它们之间延伸的对准杆相互连接的上部和下部安装端。 上安装端可释放地紧固到胫骨平台上的上参考点,并且下安装端包括自对中的踝关节接合机构,其具有相对的卡钳臂,所述相对的卡钳臂可在共同的平面中相对于彼此移位,以与内侧和外侧夹紧接合 脚踝的踝骨。 至少一个可跟踪构件安装到工具的对准杆上并且与计算机辅助手术系统连通,用于提供对准杆的至少取向信息。 当工具安装在胫骨上时,胫骨的机械轴平行于对准杆并在上参考点和下参考点之间延伸。

    Method for locating the mechanical axis of a femur
    6.
    发明授权
    Method for locating the mechanical axis of a femur 有权
    定位股骨的机械轴的方法

    公开(公告)号:US07427272B2

    公开(公告)日:2008-09-23

    申请号:US10618846

    申请日:2003-07-15

    IPC分类号: A61B5/103

    摘要: There is described a method for determining a mechanical axis of a femur using a computer aided surgery system having an output device for displaying said mechanical axis, the method comprising: providing a position sensing system having a tracking device capable of registering instantaneous position readings and attaching the tracking device to the femur; locating a center of a femoral head of the femur by moving a proximal end of the femur to a first static position, acquiring a fixed reading of the first static position, repeating the moving and the acquiring for a plurality of static positions; and locating the centre by determining a central point of a pattern formed by the plurality of static positions; digitizing an entrance point of the mechanical axis at a substantially central position of the proximal end of the femur; and joining a line between the entrance point and the center of rotation to form the mechanical axis.

    摘要翻译: 描述了一种使用具有用于显示所述机械轴的输出装置的计算机辅助手术系统来确定股骨的机械轴的方法,所述方法包括:提供具有能够记录瞬时位置读数和附着的跟踪装置的位置感测系统 跟踪装置到股骨; 通过将股骨的近端移动到第一静态位置来定位股骨的股骨头的中心,获取第一静态位置的固定读数,重复多个静态位置的移动和获取; 以及通过确定由所述多个静态位置形成的图案的中心点来定位所述中心; 将机械轴的入口点在股骨近端的基本中心位置进行数字化; 并且在入口点和旋转中心之间连接线以形成机械轴。

    Determining femoral cuts in knee surgery
    7.
    发明申请
    Determining femoral cuts in knee surgery 有权
    确定膝关节手术中的股骨切口

    公开(公告)号:US20060015120A1

    公开(公告)日:2006-01-19

    申请号:US10511261

    申请日:2003-04-30

    IPC分类号: A61F5/04

    摘要: There is provided a method and system for determining a distal cut thickness and posterior cut thickness for a femur in a knee replacement operation, the method comprising: performing a tibial cut on a tibia; performing soft tissue balancing based on a desired limb alignment; measuring an extension gap between the femur and said tibial cut while in extension; measuring a flexion gap between the femur and the tibial cut while in flexion; calculating a distal cut thickness and a posterior cut thickness for the femur using the extension gap and the flexion gap and taking into account a distal thickness and posterior thickness of a femoral implant; and performing said femoral cut according to the distal cut thickness and posterior cut thickness.

    摘要翻译: 提供了一种用于在膝关节置换手术中确定股骨的远端切割厚度和后切割厚度的方法和系统,所述方法包括:在胫骨上进行胫骨切割; 基于所需的肢体对准执行软组织平衡; 在延伸时测量股骨和所述胫骨切口之间的延伸间隙; 在屈曲期间测量股骨和胫骨切割之间的屈曲间隙; 使用延伸间隙和屈曲间隙计算股骨远端切割厚度和后切割厚度,并考虑到股骨植入物的远端厚度和后部厚度; 并根据远端切割厚度和后切割厚度进行所述股骨切割。

    Surgical universal positioning block and tool guide
    8.
    发明申请
    Surgical universal positioning block and tool guide 有权
    手术通用定位块和刀具导轨

    公开(公告)号:US20050203528A1

    公开(公告)日:2005-09-15

    申请号:US11062737

    申请日:2005-02-23

    IPC分类号: A61F5/00

    摘要: A positioning block (10) for use in total knee replacement surgery, permitting five degrees-of-freedom movement relative to a bone element (39) to which it is fixed. The positioning block (10) comprises a rotational mounting element (14) that is removably engaged to the bone element such that the mounting element (14) is selectively rotatable relative to the bone element, about three substantially perpendicular axes of rotation. A guide body portion (12) is engaged with the mounting element (14) such that it is translatable relative thereto along a proximal-distal axis (43) and an anterior-posterior axis (47), while being rotationally fixed relative to the mounting element (14) such that the guide body portion (12) and the mounting element (14) rotate together relative to the bone element (39).

    摘要翻译: 一种用于全膝关节置换手术的定位块(10),允许相对于其被固定的骨元件(39)进行五自由度运动。 定位块(10)包括可拆卸地接合到骨元件的旋转安装元件(14),使得安装元件(14)可相对于骨元件选择性地旋转,大约三个基本垂直的旋转轴线。 引导主体部分(12)与安装元件(14)接合,使得其相对于其相对于近端 - 远端轴线(43)和前 - 后轴线(47)可相对于其相对地平移,同时相对于安装件 元件(14),使得引导体部分(12)和安装元件(14)相对于骨元件(39)一起旋转。

    Floating inflatable device, particularly an inflatable life raft, equipped with venturi inflation means

    公开(公告)号:US06494756B2

    公开(公告)日:2002-12-17

    申请号:US10067254

    申请日:2002-02-04

    IPC分类号: B63B3558

    CPC分类号: B63C9/24

    摘要: A floating inflatable device which is to be able to be inflated on the surface of liquid and which for this purpose comprises inflation means including an on-board source of pressurized gas, wherein said inflation means comprise a venturi supplied by said source of pressurized gas and capable of entraining ambient air which contributes to the inflating of the device, and wherein said venturi inflation means, being mounted on a wall of said device, are protected by protective means covering them in such a way as to allow ambient air to pass freely while at the same time preventing liquid from being able to gain entry to the device to any appreciable extent.

    Opto-electronic head for the coupling of a semi-conductor device with an
optic fiber, and a method to align this semi-conductor device with this
fiber
    10.
    发明授权
    Opto-electronic head for the coupling of a semi-conductor device with an optic fiber, and a method to align this semi-conductor device with this fiber 失效
    用于将半导体器件与光纤耦合的光电头以及将该半导体器件与该光纤对准的方法

    公开(公告)号:US4807956A

    公开(公告)日:1989-02-28

    申请号:US109173

    申请日:1987-10-16

    摘要: In an opto-electronic head, an optic fiber is coupled with a laser or a light-emitting diode. According to the invention, a plane ceramic substrate acts as a reference plane for the alignment. It is separated into two zones: one zone dedicated to the semi-conductor device and one zone dedicated to the fiber. The second zone supports a heating resistor placed between two insulating layers. A heat barrier, consisting of a slit in the substrate, reduces heat transfers towards the layer to the minimum. To align the two components, a solder preform or polymer preform is put on the resistor. When the preform melts, it forms a drop in which the fiber 4 can be moved in three directions. The invention can be applied to opto-electronic systems.

    摘要翻译: 在光电头中,光纤与激光器或发光二极管耦合。 根据本发明,平面陶瓷基板用作对准的参考平面。 它分为两个区域:专用于半导体器件的一个区域和专用于光纤的一个区域。 第二区域支持放置在两个绝缘层之间的加热电阻器。 由基板上的狭缝组成的热障将减少朝向该层的热传递降至最低。 为了对准两个部件,焊料预成型件或聚合物预成型件放在电阻器上。 当预成型件熔化时,它形成一个下降,其中纤维4可以在三个方向上移动。 本发明可以应用于光电系统。