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    • 2. 发明申请
    • Crosslink interconnection of bone attachment devices
    • 骨连接装置的交联连接
    • US20070270809A1
    • 2007-11-22
    • US11401822
    • 2006-04-10
    • Troy DrewryWilliam NullMarc Paul
    • Troy DrewryWilliam NullMarc Paul
    • A61F2/30
    • A61B17/7052A61B17/7032
    • An apparatus comprises a pair of bone attachment devices and a crosslink device for a spinal fixation system or other implant arrangement. The bone attachment devices include a head with socket to receive a spinal rod or other elongate element and the crosslink device includes a pair of bridging members each having an end section for connecting with the bone attachment devices. An interconnection device situated between the bridging members receives the bridging members and allows translational and rotational freedom therebetween while being operable to secure the bridging members in position relative to one another. A pair of engaging members are structured to engage the head of the respective bone attachment device and bear against the respective adjacent end of crosslink device to lock the crosslink and the bone attachment device in a rigid construct are also included.
    • 一种装置包括一对骨附着装置和用于脊柱固定系统或其它植入装置的交联装置。 骨附接装置包括具有用于接收脊柱杆或其它细长元件的插座的头部,并且交联装置包括一对桥接构件,每个桥接构件具有用于与骨附接装置连接的端部部分。 位于桥接构件之间的互连装置接收桥接构件并且允许它们之间的平移和旋转自由度,同时可操作以将桥接构件相对于彼此固定就位。 一对接合构件被构造成接合相应的骨骼附接装置的头部并且抵靠交联装置的相应的相邻端部以将交联锁定并且将骨骼附接装置锁定在刚性结构体中。
    • 10. 发明授权
    • Multi-angle bone screw assembly using shape-memory technology
    • 使用形状记忆技术的多角度骨螺钉组件
    • US06287311B1
    • 2001-09-11
    • US09595047
    • 2000-06-12
    • Michael C. ShermanTroy Drewry
    • Michael C. ShermanTroy Drewry
    • A61B1770
    • A61B17/7037A61B17/7032A61B17/7038A61B2017/00867Y10S411/909Y10S606/911
    • In one embodiment, a spinal fixation assembly includes an elongated member, such as a spinal rod, configured for placement adjacent the spine and a bone engaging fastener, such as a bone screw having a lower portion configured for engaging a vertebra and a head that is at least partially spherical. The assembly further includes a receiver member defining a bore therethrough from a top end to a bottom end, a recess for receiving the head of the bone screwing fastener therein, and a lower opening at said bottom end of the receiver member through which the bone screw extends. The recess is configured to at permit pivoting of the bone screw within the receiver member until the head is fixed within the recess. The receiver member also includes a channel communicating with the bore and having an upper opening at the top end of the receiver member for insertion of the spinal rod into the channel. In one embodiment, two compression members are provided, each being formed of a temperature responsive material and having a first configuration at a first temperature and a different second configuration at a different second temperature in which the compression member contracts about a portion of the receiver member to thereby compress the receiver member about both the head of the bone screw within the recess and the spinal rod within the channel.
    • 在一个实施例中,脊柱固定组件包括细长构件,例如脊骨杆,其构造成用于邻近脊柱放置,以及骨接合紧固件,例如骨螺钉,其具有构造成用于接合椎骨的下部分和头部, 至少部分是球形的。 所述组件还包括限定从顶端到底端穿过其中的孔的接收器构件,用于容纳所述骨螺钉紧固件的头部的凹部,以及在所述接收器构件的所述底端处的下开口,所述骨螺钉 延伸。 该凹部构造成允许骨螺钉在接收器构件内枢转,直到头部固定在凹槽内。 接收器构件还包括与孔连通并且在接收器构件的顶端具有用于将脊柱杆插入通道中的上开口的通道。 在一个实施例中,提供两个压缩构件,每个压缩构件由温度响应材料形成,并且在不同的第二温度下具有在第一温度和不同的第二构造的第一构型,其中压缩构件围绕接收构件的一部分收缩 从而将接收器构件围绕凹槽内的骨螺钉的头部和通道内的脊柱杆压缩。