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    • 16. 发明申请
    • METHOD AND DEVICE FOR COMPUTER ASSISTED DISTAL LOCKING OF INTRAMEDULLARY NAILS
    • 用于计算机辅助的内侧钉的远距离锁定的方法和装置
    • WO2008071014A1
    • 2008-06-19
    • PCT/CH2006/000704
    • 2006-12-15
    • AO TECHNOLOGY AGZHENG, GuoyanZHANG, Xuan
    • ZHENG, GuoyanZHANG, Xuan
    • A61B17/72A61B17/16A61B17/17A61B19/00
    • A61B17/1725A61B17/1626A61B17/1703A61B17/72A61B34/10A61B34/20A61B34/30A61B2034/102A61B2034/2055A61B2090/364A61B2090/376A61B2090/3983
    • A method and a device for computer assisted distal locking of intramedullary nails comprising the steps of: A) establishing a virtual geometric representation of an intramedullary nail (1); B) acquiring a first medical image (28) using a radioscopic unit (25) with its focal line (23) adjusted at an angle between 0° and 30° to the axis (8,9) of the at least one distal locking hole (3,4); C) acquiring a second medical image using a radioscopic unit (25) with its focal line (23) adjusted at an angle between 60° and 90° to the axis (8,9) of the at least one distal locking hole (3,4); D) computing the position of the longitudinal axis (2) of the distal part (5) of the intramedullary nail (1) using said first and second medical image and said virtual geometric representation by means of a computer (40); E) computing the position of the axis (8,9) of the at least one distal locking hole (3,4) using said first and second medical image (28,29); F) transferring information related to the positions of the distal part (5) and the at least one distal locking hole (3,4) from a central processing unit of the computer (40) to an external guide means (41) for drilling a hole in a bone (30).
    • 一种用于髓内钉的计算机辅助远端锁定的方法和装置,包括以下步骤:A)建立髓内钉(1)的虚拟几何表示; B)使用其放射线单元(25)获取第一医学图像(28),其焦点线(23)相对于所述至少一个远端锁定孔的轴线(8,9)以0°和30°之间的角度被调节 (3,4); C)使用其放射线单元(25)获取第二医用图像,其焦点线(23)被调整成与所述至少一个远端锁定孔(3)的轴线(8,9)成60°至90°的角度, 4); D)使用计算机(40)使用所述第一和第二医学图像和所述虚拟几何表示来计算髓内钉(1)的远端部分(5)的纵向轴线(2)的位置; E)使用所述第一和第二医学图像(28,29)计算所述至少一个远端锁定孔(3,4)的轴线(8,9)的位置; F)将与远端部分(5)和至少一个远端锁定孔(3,4)的位置相关的信息从计算机(40)的中央处理单元传送到外部引导装置(41) 骨中的孔(30)。