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    • 6. 发明公开
    • ACETABULUM RIM DIGITIZER DEVICE AND METHOD
    • ACETABULUM RIM数字化仪设备和方法
    • EP3253322A1
    • 2017-12-13
    • EP16746029.4
    • 2016-02-02
    • Orthosoft Inc.
    • FALARDEAU, BrunoDUVAL, KarineMOREAU-BELANGER, LaurencePARADIS, FrançoisLI, DiVALIN, MyriamPELLETIER, Benoit
    • A61B34/20A61B17/74A61B17/90A61B34/00A61F2/34A61F2/46
    • A computer-assisted surgery (CAS) system for tracking an orientation of a pelvis comprises at least one instrument, the instrument having an acetabulum abutment end adapted to be received in an acetabulum, a rim abutment adapted to be abutted against a rim of the acetabulum, and an indicator representative of a physical orientation of the instrument. An inertial sensor unit is connected to the at least one instrument, the inertial sensor unit producing readings representative of its orientation. A computer-assisted surgery processor unit comprises a coordinate system module for setting a pelvic coordinate system from readings of the at least one inertial sensor unit when the at least one instrument has the acetabulum abutment end received in the acetabulum, the coordinate system module setting the pelvic coordinate system by obtaining a plurality of orientation values from the at least one inertial sensor unit when the rim abutment is abutted against locations of the rim, one of said orientation values having the indicator aligned with a reference landmark, the coordinate system module defining an acetabular plane representative of the pelvic coordinate system from the plurality of orientation values; and a tracking module for tracking an orientation of the at least one inertial sensor unit relative to the pelvic coordinate system during movements thereof using the readings from the inertial sensor unit. An interface outputs orientation data as a function of the pelvic coordinate system.
    • 8. 发明公开
    • METHOD AND SYSTEM FOR TRACKING TOOLS IN COMPUTER-ASSISTED SURGERY
    • VERFAHREN UND SYSTEM ZUR VERFOLGUNG VON WERKZEUGEN IN DERCOMPUTERUNTERSTÜTZTENCHIRURGIE
    • EP1996108A4
    • 2017-06-21
    • EP07710783
    • 2007-03-21
    • ORTHOSOFT INC
    • COUTURE PIERREJUTRAS SÉBASTIEN
    • A61B17/56A61B5/06A61B6/00
    • A61B5/4504A61B5/103A61B34/20A61B90/36A61B2034/102A61B2034/105A61B2034/256
    • A system for tracking a bone-altering tool in computer-assisted surgery, comprising a first trackable reference secured to a first bone, with a first frame of reference being associated with the first trackable reference. A bone-altering tool is securable to the first bone in a secured configuration. Sensors track the trackable reference for position and orientation. A position/orientation calculator is connected to the sensor device to calculate a position and orientation of the first frame of reference. An alteration parameter calculator is associated with the position/orientation calculator to determine a position and orientation of the bone-altering tool in the secured configuration as a function of the position and orientation of the first frame of reference and of the secured configuration. A method for tracking tools using the tracking of a bone is provided.
    • 一种用于跟踪计算机辅助手术中的骨骼改变工具的系统,包括固定到第一骨骼的第一可跟踪参考,其中第一参考系与第一可跟踪参考相关联。 骨骼改变工具可以固定在第一块骨骼上,并且安全。 传感器跟踪位置和方向的可跟踪参考。 位置/方向计算器连接到传感器装置以计算第一参照系的位置和取向。 变更参数计算器与位置/取向计算器相关联,以根据第一参考框架和固定构造的位置和取向来确定变形工具在固定构造中的位置和取向。 提供了一种使用跟踪骨骼来跟踪工具的方法。