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    Arthroplasty jigs with mating accuracy
    2.
    发明授权
    Arthroplasty jigs with mating accuracy 有权

    公开(公告)号：US11129678B2

    公开(公告)日：2021-09-28

    申请号：US16431394

    申请日：2019-06-04

    申请人： Howmedica Osteonics Corporation

    发明人： Ilwhan Park

    IPC分类号： A61B17/58 ,  A61B17/60 ,  A61F2/00 ,  A61B34/10 ,  A61B17/15 ,  A61B17/16 ,  A61B17/17

    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.

    Generation of a mating surface model for patient specific cutting guide based on anatomical model segmentation
    3.
    发明授权
    Generation of a mating surface model for patient specific cutting guide based on anatomical model segmentation 有权

    公开(公告)号：US10912571B2

    公开(公告)日：2021-02-09

    申请号：US14776660

    申请日：2014-03-17

    申请人： Howmedica Osteonics Corporation

    发明人： Elena I. Pavlovskaia ,  Boris E. Shpungin ,  Oleg Mishin ,  Olga Sominskaya

    IPC分类号： A61B17/15 ,  A61B34/10 ,  A61B17/56 ,  A61F2/38

    摘要： A smooth mating surface model defining a mating surface of a customized arthroplasty jig is generated. For example, 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.

    TOTAL HIP REPLACEMENT SURGICAL GUIDE TOOL
    4.
    发明申请
    TOTAL HIP REPLACEMENT SURGICAL GUIDE TOOL 审中-公开

    公开(公告)号：US20200205899A1

    公开(公告)日：2020-07-02

    申请号：US16725545

    申请日：2019-12-23

    申请人： Howmedica Osteonics Corporation

    发明人： Ilwhan Park ,  Michael Koehle ,  Lorenzo R. Deveza

    IPC分类号： A61B34/10 ,  G05B19/418 ,  A61F2/36 ,  A61B17/17

    摘要： Disclosed herein is a surgical guide tool for use in total hip replacement surgery. The surgical guide tool may include a customized mating region and a resection guide. The customized mating region and the resection guide are referenced to each other such that, when the customized mating region matingly engages a surface area of a proximal femur, the resection guide will be aligned to guide a resectioning of the proximal femur along a preoperatively planned resection plane.

    Customized arthroplasty cutting guides and surgical methods using the same
    8.
    发明授权
    Customized arthroplasty cutting guides and surgical methods using the same 有权

    公开(公告)号：US10064634B2

    公开(公告)日：2018-09-04

    申请号：US15788478

    申请日：2017-10-19

    申请人： Howmedica Osteonics Corporation

    发明人： Keun Song

    IPC分类号： A61B17/17 ,  A61B17/15 ,  A61B17/56

    摘要： An arthroplasty system for making resections in a patient knee. The system includes a femoral cutting guide having a patient specific mating region, and a distal planar surface distally spaced from a distal resection surface based on thicknesses of femoral and tibial implants. The distal planar surface may be used to check ligament balance. The system further includes a tibial cutting guide having a patient specific mating region and an anchor pin hole intersecting with a proximal resection slot near a medial or lateral edge of the proximal resection slot. The anchor pin hole being configured to receive an anchor pin that may serve as a sawing stop during a proximal resection.

    ARTHROPLASTY JIGS WITH MATING ACCURACY
    10.
    发明申请
    ARTHROPLASTY JIGS WITH MATING ACCURACY 审中-公开

    公开(公告)号：US20180132943A1

    公开(公告)日：2018-05-17

    申请号：US15802137

    申请日：2017-11-02

    申请人： Howmedica Osteonics Corporation

    发明人： Ilwhan Park

    IPC分类号： A61B34/10 ,  A61B17/17 ,  A61B17/16 ,  A61B17/15

    CPC分类号： A61B34/10 ,  A61B17/15 ,  A61B17/155 ,  A61B17/157 ,  A61B17/1675 ,  A61B17/1764 ,  A61B17/58 ,  A61B2034/108

    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.