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    MEMS-BASED METHOD AND SYSTEM FOR TRACKING A FEMORAL FRAME OF REFERENCE
    1.
    发明申请
    MEMS-BASED METHOD AND SYSTEM FOR TRACKING A FEMORAL FRAME OF REFERENCE 审中-公开

    公开(公告)号：US20180147016A1

    公开(公告)日：2018-05-31

    申请号：US15881288

    申请日：2018-01-26

    Applicant: ORTHOSOFT INC.

    Inventor： Myriam VALIN ,  Catherine PROULX ,  Louis-Philippe AMIOT ,  Bruno FALARDEAU ,  Julie DESLONGCHAMPS

    IPC: A61B34/20

    CPC classification number: A61B34/20 ,  A61B2034/2048

    Abstract: A system for tracking a femoral frame of reference in computer-assisted surgery comprises a sensor unit. The sensor unit is adapted to be secured to the femur. The sensor unit comprises accelerometer and gyroscope sensors that produce orientation data. A processing unit receives gyroscope and accelerometer data. The processing unit comprises a gyroscope-data calculator to provide calculated acceleration data resulting from movements of the femur, an accelerometer-data calculator to calculate measured acceleration data resulting from movements of the femur, and an acceleration comparator to relate an orientation of the sensor unit to the femur to define a femoral frame of reference. The femoral frame of reference is defined from the comparison between the calculated and the measured acceleration data. A sensor orientation interface provides orientation data for the femur from a tracking of the femoral frame of reference. A method for tracking a femoral frame of reference is also provided.

    METHOD AND SYSTEM FOR PLANNING/GUIDING ALTERATIONS TO A BONE
    2.
    发明申请
    METHOD AND SYSTEM FOR PLANNING/GUIDING ALTERATIONS TO A BONE 有权
    用于对骨骼进行计划/引导改变的方法和系统

    公开(公告)号：US20140316545A1

    公开(公告)日：2014-10-23

    申请号：US14157043

    申请日：2014-01-16

    Applicant: ORTHOSOFT, INC.

    Inventor： Louis-Philippe AMIOT ,  Yannick BOUTIN ,  Yonik BRETON ,  Karine DUVAL ,  Herbert Andre JANSEN ,  Benoit PELLETIER ,  Catherine PROULX ,  Alain RICHARD ,  Myriam VALIN ,  Joel ZUHARS

    IPC: G06F17/50 ,  A61B19/00

    CPC classification number: A61B17/155 ,  A61B17/157 ,  A61B34/20 ,  A61B2017/00115 ,  A61B2017/00725 ,  A61B2034/2048 ,  G01C21/16 ,  G06F17/5086

    Abstract: A computer-assisted surgery system for guiding alterations to a bone, comprises a trackable member secured to the bone. The trackable member has a first inertial sensor unit producing orientation-based data. A positioning block is secured to the bone, and is adjustable once the positioning block is secured to the bone to be used to guide tools in altering the bone. The positioning block has a second inertial sensor unit producing orientation-based data. A processing system providing an orientation reference associating the bone to the trackable member comprises a signal interpreter for determining an orientation of the trackable member and of the positioning block. A parameter calculator calculates alteration parameters related to an actual orientation of the positioning block with respect to the bone.

    Abstract translation: 一种用于引导骨骼改变的计算机辅助手术系统，包括固定到骨骼上的可跟踪构件。 可跟踪构件具有产生基于定向的数据的第一惯性传感器单元。 定位块被固定到骨头上，并且一旦定位块被固定到骨头上就可调节，以用于引导改变骨骼的工具。 定位块具有产生基于定向的数据的第二惯性传感器单元。 提供将骨骼与可跟踪构件相关联的定向参考的处理系统包括用于确定可跟踪构件和定位块的取向的信号解释器。 参数计算器计算与定位块相对于骨骼的实际方向相关的改变参数。

    TOOL AND METHOD FOR DIGITAL ACQUISITION OF A TIBIAL MECHANICAL AXIS
    3.
    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：US20170007269A1

    公开(公告)日：2017-01-12

    申请号：US15222026

    申请日：2016-07-28

    Applicant: ORTHOSOFT INC.

    Inventor： Benoit PELLETIER ,  Karine DUVAL ,  Trong Tin NGUYEN ,  Pierre COUTURE ,  Louis-Philippe AMIOT ,  Yannick BOUTIN ,  Alain RICHARD ,  Catherine PROULX

    IPC: A61B17/15 ,  A61B34/20

    CPC classification number: A61B17/157 ,  A61B5/4528 ,  A61B5/4538 ,  A61B5/4585 ,  A61B17/154 ,  A61B34/20 ,  A61B90/06 ,  A61B2034/2048 ,  A61B2034/2068 ,  A61F2/46 ,  A61F2/4657

    Abstract: A method for determining a mechanical axis of a tibia using a tibial digitizer is disclosed. The method includes: determining an upper reference point on a tibial plateau corresponding to an entry point of the mechanical axis; fastening an upper mounting end of the tibial digitizer to the tibial plateau at the upper reference point; and fastening a lower mounting end of the tibial digitizer to medial and lateral malleoli of the ankle, by inwardly displacing opposed caliper arms of a self-centering malleoli engaging mechanism toward each other in a common plane until the caliper arms abut the malleoli. A lower reference point located at a midpoint between the medial and lateral malleoli is then determined by identifying a corresponding midpoint between the caliper arms when they are clamped onto the medial and lateral malleoli.

    Abstract translation: 公开了一种使用胫骨数字化仪确定胫骨的机械轴的方法。 该方法包括：确定对应于机械轴的入口点的胫骨平台上的上参考点; 将胫骨数字化仪的上安装端固定在上参考点处的胫骨平台上; 并将胫骨数字转换器的下安装端紧固到脚踝的内侧和外侧的踝部，通过使自对中的踝关节接合机构的相对的卡钳臂在公共平面中向彼此相对移动，直到卡钳臂抵靠踝部。 然后，位于内侧和外侧踝之间的中点处的较低参考点通过当卡钳臂被夹紧在内侧和外侧踝上时识别卡钳臂之间的对应中点来确定。

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