MEMS-BASED METHOD AND SYSTEM FOR TRACKING A FEMORAL FRAME OF REFERENCE

    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.

    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.

    ROBOTIC SURGERY PLANAR CUTTING SYSTEMS AND METHODS

    公开(公告)号:US20190239901A1

    公开(公告)日:2019-08-08

    申请号:US16265318

    申请日:2019-02-01

    Applicant: ORTHOSOFT INC.

    Abstract: Examples of robotically controlled planar cutting systems and methods for controlling cutting systems to prepare bone tissue in surgical procedures, are generally described herein. Applicable surgical procedures for the robotically controlled cutting systems and methods include procedures involving the preparation (e.g., removal, surfacing) of bone tissue, such as is performed in knee arthroplasties.In an example, a robotically controlled planar cutting system can include a housing, a cutting element disposed in the housing, and a cutting control mechanism in communication with a robotic controller to control operation of the cutting element to machine a planar surface. The cutting element can be exposed and retracted relative to the housing and can include a plurality of cutting implements arranged to machine the planar surface.

    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.

    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。

    NON-INVASIVE SYSTEM AND METHOD FOR TRACKING BONES

    公开(公告)号:US20180289425A1

    公开(公告)日:2018-10-11

    申请号:US15946857

    申请日:2018-04-06

    Applicant: ORTHOSOFT INC.

    Abstract: Systems and methods for determining position and orientation of a bone of an anatomical feature are described. These include the use of a wearable holder configured to be mounted about an outer-skin surface of the anatomical feature, such that the anatomical feature and the bone are positioned in fixed relation with respect to the wearable holder when the wearable holder is mounted about the anatomical feature. Reference marker arrays are fixedly mounted to the wearable holder, each being positioned on the wearable holder to identify a landmark of the bone within the wearable holder when the wearable holder is mounted to the anatomical feature. The position and orientation of the reference markers are trackable to determine position and orientation of the wearable holder in a reference coordinate system, thereby enabling position and orientation of the landmarks on the bone to be determined.

    PATIENT SPECIFIC INSTRUMENTATION WITH MEMS IN SURGERY
    6.
    发明申请
    PATIENT SPECIFIC INSTRUMENTATION WITH MEMS IN SURGERY 有权
    患者手术中的MEMS特异性仪器

    公开(公告)号:US20140031672A1

    公开(公告)日:2014-01-30

    申请号:US13949697

    申请日:2013-07-24

    Abstract: An assembly of a patient specific instrument and tracking system comprises a patient specific instrument having a body with a patient specific contact surface negatively shaped relative to a corresponding surface of a bone for complementary contact therewith. An inertial sensor unit with a preset orientation is connected to the body in a planned connection configuration, such that a geometrical relation between the contact surface and the inertial sensor unit is known. A tracking system has a tracking processor connected to the inertial sensor unit, a user interface, and bone orientation data related to the patient specific contact surface, the tracking processor producing orientation tracking data for the bone using the geometrical relation and the bone orientation data when the preset orientation of the inertial sensor unit is initialized, to output the orientation tracking data on the user interface.

    Abstract translation: 患者特定仪器和跟踪系统的组件包括患者特异性仪器,其具有身体,其具有相对于骨骼的相应表面呈负形状的患者特异性接触表面,用于与其互补接触。 具有预设方向的惯性传感器单元以预定的连接构造连接到主体,使得接触表面和惯性传感器单元之间的几何关系是已知的。 跟踪系统具有连接到惯性传感器单元,用户界面和与患者特定接触表面相关的骨取向数据的跟踪处理器,跟踪处理器使用几何关系和骨取向数据产生用于骨的方向跟踪数据, 初始化惯性传感器单元的预设方向,以便在用户界面上输出方位跟踪数据。

    METHOD AND SYSTEM FOR PLANNING/GUIDING ALTERATIONS TO A BONE
    7.
    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

    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。

    HIP REPLACEMENT IN COMPUTER-ASSISTED SURGERY
    8.
    发明申请
    HIP REPLACEMENT IN COMPUTER-ASSISTED SURGERY 有权
    计算机辅助手术中的HIP替代

    公开(公告)号:US20140296856A1

    公开(公告)日:2014-10-02

    申请号:US14303099

    申请日:2014-06-12

    CPC classification number: A61B34/73 A61B17/1666 A61B34/10 A61B34/20 A61F2/4609

    Abstract: A system for calculating a position and orientation of an acetabular cup in computer-assisted surgery comprises a first trackable reference secured to a pelvis, with a frame of reference being associated with the first trackable reference. A device is positionable between a femoral neck and the acetabulum of the pelvis in a known relation, the device having a second trackable reference. Sensors track the trackable references for position and orientation. A position/orientation calculator calculates a position and orientation of the frame of reference and of the device and for determining an orientation of the neck axis with respect to the frame of reference from the known relation at a desired position of the femur. An implant position/orientation calculator provides cup implanting information with respect to the orientation of said neck axis as a function of the tracking for position and orientation of at least the first trackable reference.

    Abstract translation: 用于计算计算机辅助手术中的髋臼杯的位置和取向的系统包括固定到骨盆的第一可跟踪参考,其中参考系与第一可追踪参考相关联。 一种装置可以以已知的关系定位在股骨颈与骨盆的髋臼之间,该装置具有第二可追踪参考。 传感器跟踪可追踪的位置和方位。 位置/姿态计算器计算参考框架和装置的位置和方位,并且用于根据在股骨的期望位置处的已知关系来确定颈部轴线相对于参考系的取向。 植入物位置/取向计算器提供相对于所述颈部轴线的取向的杯子注入信息,作为至少第一可追踪参考物的位置和取向的跟踪的函数。

    PATIENT SPECIFIC SURGICAL GUIDE
    9.
    发明申请
    PATIENT SPECIFIC SURGICAL GUIDE 审中-公开
    患者特异性手术指南

    公开(公告)号:US20130274778A1

    公开(公告)日:2013-10-17

    申请号:US13863678

    申请日:2013-04-16

    Applicant: ORTHOSOFT INC.

    Abstract: A patient specific instrument (PSI) surgical guide and method for producing same is described. The method includes: obtaining imagery of at least a portion of a patient, and determining one or more surgical targets in the tissue; planning at least a trajectory of the surgical procedure based on a determined surgical target within the tissue; performing segmentation of the imagery; creating a three-dimensional model of the PSI surgical guide, the PSI surgical guide being customized in size and shape and configured to fit on the specific patient. The PSI surgical guide is then produced to correspond to the modeled PSI surgical guide. The PSI surgical guide has a guide element positioned and oriented to guide a surgical implement along the planned trajectory toward the determined surgical target in the tissue.

    Abstract translation: 描述了一种患者特异性仪器(PSI)手术指南及其制造方法。 该方法包括:获得患者的至少一部分的图像,以及确定组织中的一个或多个手术靶标; 基于所述组织内的确定的外科手术目标来规划所述外科手术的至少轨迹; 执行图像的分割; 创建PSI手术引导件的三维模型,PSI手术引导器被定制在尺寸和形状上并且被配置为适合于特定患者。 然后产生PSI手术引导件以对应于建模的PSI手术引导件。 PSI外科手术引导件具有定位和定向的引导元件,以沿着计划的轨迹导向外科器械,朝向组织中确定的手术靶标。

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