Generation of a Mating Surface Model for Patient Specific Cutting Guide Based on Anatomical Model Segmentation
    2.
    发明申请
    Generation of a Mating Surface Model for Patient Specific Cutting Guide Based on Anatomical Model Segmentation 审中-公开
    基于解剖模型分割的患者特定切割指南的交配表面模型的生成

    公开(公告)号:US20160022370A1

    公开(公告)日:2016-01-28

    申请号:US14776660

    申请日:2014-03-17

    IPC分类号: A61B19/00 A61B17/15

    摘要: Implementations described and claimed herein provide systems and methods for generating a smooth mating surface model defining a mating surface of a customized arthroplasty jig. In one implementation, sagittal slices of a volumetric image of a patient bone are segmented with segmentation splines. An anatomically accurate model of the patient bone is generated from the segmentation splines. The anatomically accurate model includes anatomically accurate segmentation splines. The anatomically accurate segmentation splines are transformed into mating surface contours. Any inadequate segments of the mating surface contours are modified to obtain modified mating surface contours. A mating surface model of the patient bone is generated based on the mating surface contours and the modified mating surface contours. Three-dimensional cross-sections of the mating surface model are smoothed to generate the smooth mating surface model.

    摘要翻译: 本文描述和要求保护的实施例提供了用于产生限定定制关节成形术夹具的配合表面的平滑配合表面模型的系统和方法。 在一个实现中,患者骨的体积图像的矢状切片被分割花键。 从分割样条生成解剖学上准确的患者骨骼模型。 解剖学上精确的模型包括解剖精确的分割样条。 解剖学上精确的分割样条变换成匹配表面轮廓。 匹配表面轮廓的任何不适当的部分被修改以获得改进的配合表面轮廓。 基于配合表面轮廓和修改的配合表面轮廓产生患者骨的配合表面模型。 匹配表面模型的三维横截面被平滑以产生平滑的配合表面模型。

    ARTHROPLASTY JIG
    4.
    发明申请
    ARTHROPLASTY JIG 有权
    大戟Y

    公开(公告)号:US20150342623A1

    公开(公告)日:2015-12-03

    申请号:US14824731

    申请日:2015-08-12

    IPC分类号: A61B17/17 A61B6/03 A61B17/16

    摘要: A method and system for performing a total joint arthroplasty procedure on a patient's damaged bone region. A CT image or other suitable image is formed of the damaged bone surfaces, and location coordinate values (xn,yn,zn) are determined for a selected sequence of bone surface locations using the CT image data. A mathematical model z=f(x,y) of a surface that accurately matches the bone surface coordinates at the selected bone spice locations, or matches surface normal vector components at selected bone surface locations, is determined. The model provides a production file from which a cutting jig and an implant device (optional), each patient-specific and having controllable alignment, are fabricated for the damaged bone by automated processing. At this point, the patient is cut open (once), the cutting jig and a cutting instrument are used to remove a selected portion of the bone and to provide an exposed planar surface, the implant device is optionally secured to and aligned with the remainder of the bone, and the patient's incision is promptly repaired.

    摘要翻译: 一种用于对患者的受损骨区进行全关节置换手术的方法和系统。 CT图像或其他合适的图像由损伤的骨表面形成,并且使用CT图像数据为所选择的骨表面位置序列确定位置坐标值(xn,yn,zn)。 确定精确匹配所选择的骨骼香料位置处的骨表面坐标或匹配所选骨表面位置处的表面法向量分量的表面的数学模型z = f(x,y)。 该模型提供了一种生产文件,通过自动化处理为受损骨制造切割夹具和植入装置(可选),每个患者特异性并具有可控制的对准。 在这一点上,患者被切开(一次),切割夹具和切割工具用于去除骨的选定部分并提供暴露的平坦表面,植入装置可选地固定到其余部分并与其余部分对准 的骨头,并且病人的切口被及时修复。

    System and method for manufacturing arthroplasty jigs having improved mating accuracy
    5.
    发明授权
    System and method for manufacturing arthroplasty jigs having improved mating accuracy 有权
    制造具有改进的配合精度的关节造形术夹具的系统和方法

    公开(公告)号:US08961527B2

    公开(公告)日:2015-02-24

    申请号:US13731850

    申请日:2012-12-31

    发明人: Ilwhan Park

    摘要: Disclosed herein is a method of defining a mating surface in a first side of an arthroplasty jig. The mating surface is configured to matingly receive and contact a corresponding patient surface including at least one of a bone surface and a cartilage surface. The first side is oriented towards the patient surface when the mating surface matingly receives and contacts the patient surface. The method may include: a) identifying a contour line associated with the patient surface as represented in a medical image; b) evaluating via an algorithm the adequacy of the contour line for defining a portion of the mating surface associated with the contour line; c) modifying the contour line if the contour line is deemed inadequate; and d) employing the modified contour line to define the portion of the mating surface associated with the contour line.

    摘要翻译: 本文公开了一种在关节置换夹具的第一侧中限定配合表面的方法。 配合表面构造成配合地接合并接触包括骨表面和软骨表面中的至少一个的相应的患者表面。 当配合表面配合地接收并接触患者表面时,第一侧面向病人表面。 该方法可以包括:a)识别与医学图像中所表示的患者表面相关联的轮廓线; b)通过算法评估用于定义与轮廓线相关联的配合表面的一部分的轮廓线的适当性; c)如果轮廓线被认为不足,则修改轮廓线; 以及d)使用改进的轮廓线来限定与轮廓线相关联的配合表面的部分。

    ARTHROPLASTY JIG
    6.
    发明申请
    ARTHROPLASTY JIG 有权
    大戟Y

    公开(公告)号:US20140330279A1

    公开(公告)日:2014-11-06

    申请号:US14335460

    申请日:2014-07-18

    IPC分类号: A61B17/17 A61B17/15 A61B19/00

    摘要: A method and system for performing a total joint arthroplasty procedure on a patient's damaged bone region. A CT image or other suitable image is formed of the damaged bone surfaces, and location coordinate values (xn,yn,zn) are determined for a selected sequence of bone surface locations using the CT image data. A mathematical model z=f(x,y) of a surface that accurately matches the bone surface coordinates at the selected bone spice locations, or matches surface normal vector components at selected bone surface locations, is determined. The model provides a production file from which a cutting jig and an implant device (optional), each patient-specific and having controllable alignment, are fabricated for the damaged bone by automated processing. At this point, the patient is cut open (once), the cutting jig and a cutting instrument are used to remove a selected portion of the bone and to provide an exposed planar surface, the implant device is optionally secured to and aligned with the remainder of the bone, and the patient's incision is promptly repaired.

    摘要翻译: 一种用于对患者的受损骨区进行全关节置换手术的方法和系统。 CT图像或其他合适的图像由损伤的骨表面形成,并且使用CT图像数据为所选择的骨表面位置序列确定位置坐标值(xn,yn,zn)。 确定精确匹配所选择的骨骼香料位置处的骨表面坐标或匹配所选骨表面位置处的表面法向量分量的表面的数学模型z = f(x,y)。 该模型提供了一种生产文件,通过自动化处理为受损骨制造切割夹具和植入装置(可选),每个患者特异性并具有可控制的对准。 在这一点上,患者被切开(一次),切割夹具和切割工具用于去除骨的选定部分并提供暴露的平坦表面,植入装置可选地固定到其余部分并与其余部分对准 的骨头,并且病人的切口被及时修复。

    Arthroplasty systems and devices, and related methods
    7.
    发明授权
    Arthroplasty systems and devices, and related methods 有权
    关节成形术系统和装置及相关方法

    公开(公告)号:US08777955B2

    公开(公告)日:2014-07-15

    申请号:US13723904

    申请日:2012-12-21

    发明人: Ilwhan Park

    IPC分类号: A61F5/00

    摘要: Systems for manufacturing arthroplasty jigs are disclosed. The systems include positioning components for positioning an arthroplasty jig blank in a machining device (e.g., a computer numerical control (CNC) machine). Arthroplasty jig blanks that may be used in the systems can include an arm fixture component configured to be coupled to the positioning component. Coupling the arm fixture component to the positioning component positions the jig blank body for machining by the machining device. In addition, positioning components, arthroplasty jig blanks, and methods for making arthroplasty jig blanks are disclosed.

    摘要翻译: 公开了制造关节成形术夹具的系统。 这些系统包括用于将关节成形术夹具坯料定位在加工装置(例如,计算机数控(CNC)机器)中的定位部件。 可以在系统中使用的关节成形术夹具坯料可以包括构造成联接到定位部件的臂固定部件。 将支架固定部件与定位部件联接,通过加工装置对夹具坯体进行定位加工。 此外,公开了定位部件,关节成形夹具坯料以及制造关节成形夹具坯料的方法。

    GENERATION OF A COMPUTERIZED BONE MODEL REPRESENTATIVE OF A PRE-DEGENERATED STATE AND USEABLE IN THE DESIGN AND MANUFACTURE OF ARTHROPLASTY DEVICES
    8.
    发明申请
    GENERATION OF A COMPUTERIZED BONE MODEL REPRESENTATIVE OF A PRE-DEGENERATED STATE AND USEABLE IN THE DESIGN AND MANUFACTURE OF ARTHROPLASTY DEVICES 有权
    预处理状态的计算机骨架模型代表的产生并且可用于ARTHROPLASTY设备的设计和制造

    公开(公告)号:US20140005997A1

    公开(公告)日:2014-01-02

    申请号:US13923093

    申请日:2013-06-20

    IPC分类号: G06F17/50

    摘要: A method of generating a computerized bone model representative of at least a portion of a patient bone in a pre-degenerated state. The method includes: generating at least one image of the patient bone in a degenerated state; identifying a reference portion associated with a generally non-degenerated portion of the patient bone; identifying a degenerated portion associated with a generally degenerated portion of the patient bone; and using information from at least one image associated with the reference portion to modify at least one aspect associated with at least one image associated the generally degenerated portion. The method may further include employing the computerized bone model representative of the at least a portion of the patient bone in the pre-degenerated state in defining manufacturing instructions for the manufacture of a customized arthroplasty jig.

    摘要翻译: 一种在预退化状态下生成代表患者骨的至少一部分的计算机化骨模型的方法。 该方法包括:在退化状态下产生患者骨骼的至少一个图像; 识别与患者骨的通常非退化部分相关联的参考部分; 识别与患者骨的大致退化部分相关联的退化部分; 以及使用与所述参考部分相关联的至少一个图像的信息来修改与与所述大致退化部分相关联的至少一个图像相关联的至少一个方面。 该方法可以进一步包括在定义用于制造定制的关节造形术夹具的制造说明书中使用代表处于预退化状态的患者骨的至少一部分的计算机化骨模型。

    TOTAL JOINT ARTHROPLASTY SYSTEM
    10.
    发明申请
    TOTAL JOINT ARTHROPLASTY SYSTEM 有权
    总共牙根系统

    公开(公告)号:US20130190767A1

    公开(公告)日:2013-07-25

    申请号:US13730585

    申请日:2012-12-28

    IPC分类号: A61B17/17 G06F19/00 A61F2/30

    摘要: A method and system for performing a total joint arthroplasty procedure on a patient's damaged bone region. A CT image or other suitable image is formed of the damaged bone surfaces, and location coordinate values (xn,yn,zn) are determined for a selected sequence of bone surface locations using the CT image data. A mathematical model z=f(x,y) of a surface that accurately matches the bone surface coordinates at the selected bone spice locations, or matches surface normal vector components at selected bone surface locations, is determined. The model provides a production file from which a cutting jig and an implant device (optional), each patient-specific and having controllable alignment, are fabricated for the damaged bone by automated processing. At this point, the patient is cut open (once), the cutting jig and a cutting instrument are used to remove a selected portion of the bone and to provide an exposed planar surface, the implant device is optionally secured to and aligned with the remainder of the bone, and the patient's incision is promptly repaired.

    摘要翻译: 一种用于对患者的受损骨区进行全关节置换手术的方法和系统。 CT图像或其他合适的图像由损伤的骨表面形成,并且使用CT图像数据为所选择的骨表面位置序列确定位置坐标值(xn,yn,zn)。 确定精确匹配所选择的骨骼香料位置处的骨表面坐标或匹配所选骨表面位置处的表面法向量分量的表面的数学模型z = f(x,y)。 该模型提供了一种生产文件,通过自动化处理为受损骨制造切割夹具和植入装置(可选),每个患者特异性并具有可控制的对准。 在这一点上,患者被切开(一次),切割夹具和切割工具用于去除骨的选定部分并提供暴露的平坦表面,植入装置可选地固定到其余部分并与其余部分对准 的骨头,并且病人的切口被及时修复。