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    • 3. 发明申请
    • Surgical instrument of the releaser type for a spinal implant
    • 用于脊柱植入物的释放器类型的手术器械
    • US20050149048A1
    • 2005-07-07
    • US10899026
    • 2004-07-27
    • Tiphaine LeportJean-Yves LeroyGuy ViartPascal Rokegem
    • Tiphaine LeportJean-Yves LeroyGuy ViartPascal Rokegem
    • A61B17/88A61B17/58
    • A61B17/88A61B17/7091
    • A surgical instrument for removal of an immobilizing element includes a main body having a guide tube integral with a fixed handle and having elastic elements for securing the surgical instrument on the head, a locking tube sliding on the guide tube and having elements for immobilizing the surgical instrument on the head, a pusher tube sliding inside the guide tube by way of a mobile handle connected to the fixed handle. The pusher tube has first elements for spacing apart the walls of the head and second elements for immobilizing the connection rod in the base of the head of the bone-anchoring element, and a gripper rod sliding inside the pusher tube and including a gripper device for securing and removal of the immobilizing element from the head of the bone-anchoring element.
    • 用于去除固定元件的外科器械包括主体,该主体具有与固定手柄一体的引导管,并具有用于将手术器械固定在头部上的弹性元件,在引导管上滑动的锁定管,并具有用于固定手术的元件 仪器在头部,推动管通过连接到固定手柄的移动手柄在引导管内滑动。 推动器管具有用于将头部的壁和第二元件间隔开的第一元件,用于将连接杆固定在骨锚固元件的头部的基部中;以及夹持杆,其在推动管内滑动并且包括夹持器装置, 固定和移除固定元件从骨锚固元件的头部。
    • 7. 发明授权
    • Spinal osteosynthesis device adaptable to differences of alignment,
angulation and depth of penetration of pedicle screws
    • 脊柱骨接合装置可适应椎弓根螺钉对准,角度和穿透深度的差异
    • US5879351A
    • 1999-03-09
    • US65517
    • 1998-04-24
    • Guy Viart
    • Guy Viart
    • A61B17/58A61B17/70
    • A61B17/7041A61B17/7055
    • The device comprises at least one vertebral rod (2), pedicle screws (3), and connectors (1) interconnecting the rod and the screws. The connectors (1, 10) define an oblong opening (5) extending transversely of the rod and passed through by the screw. The intermediate connectors (1) are made of a malleable plastically deformable material having a capacity of elongation of at least about 20%. The intermediate anchorages of the instrumentation are provided with such connectors (1) which are plastically deformable in their branches (4) passed through by the screw by the effect of the tightening of nuts (8) on the screws when placing the device in position and undeformable by the effect of the bending moments transmitted by the spine in vivo at values lower than 4.5 N.m. The chosen material may be for example pure titanium and its plasticity enables the surgeons to easily adapt the connectors to the differences of alignment, angulation and depth of penetration of the pedicle screws. The connector according to the invention considerably facilitates the mounting of the instrumentations by the surgeon.
    • 该装置包括至少一个椎骨杆(2),椎弓根螺钉(3)和连接杆和螺钉的连接器(1)。 连接器(1,10)限定了一个长方形开口(5),该开口横向延伸穿过该杆并被螺钉穿过。 中间连接器(1)由具有至少约20%的伸长能力的可延展的可塑性变形材料制成。 仪器的中间锚固件设置有这样的连接器(1),其在通过螺钉穿过的分支(4)中是可塑性变形的,当将装置放置在适当位置时,螺母(8)紧固在螺钉上; 由脊柱在体内传递的弯曲力矩的作用不能变形,其值低于4.5Nm 所选择的材料可以是例如纯钛,并且其可塑性使得外科医生能够容易地使连接器适应椎弓根螺钉的对准,角度和穿透深度的差异。 根据本发明的连接器显着地便于外科医生安装仪器。