Flexible member tensioning instruments and methods

    公开(公告)号:US20060276804A1

    公开(公告)日:2006-12-07

    申请号:US11499145

    申请日:2006-08-04

    IPC分类号: A61B17/58

    摘要: An instrument for tensioning a flexible elongate member in a surgical procedure includes a tensioning mechanism engageable to a portion of the flexible elongate member and operable to apply a tensioning force to the elongate member. The instrument includes a distal end portion at a distal end of the tensioning mechanism that is adapted to allow orientation of the elongate member in a first direction for implantation and to allow the instrument to extend transversely to the implantation orientation during application of a tensioning force. The distal end portion can also include a receptacle to receive a structure at the surgical site to facilitate positioning of the distal end portion at the desired location.

    Flexible spinal stabilization system and method

    公开(公告)号:US20060122599A1

    公开(公告)日:2006-06-08

    申请号:US11336253

    申请日:2006-01-20

    申请人: Troy Drewry Fred Molz

    发明人: Troy Drewry Fred Molz

    IPC分类号: A61F2/30

    摘要: Devices, methods and systems for stabilizing at least a portion of the spinal column are provided. Devices include anchors and coupling members for engaging an elongate member. Systems include an elongate member sized to span a distance between at least two vertebral bodies and being at least partially formed of a flexible material. A number of anchors and coupling members are used to secure the elongate member to each of the vertebral bodies. The anchors can be compressed towards one another and the elongate member secured thereto and/or the elongate member can be tensioned to provide corrective forces to the spine.

    Multi-axial bone screw assembly
    4.
    发明授权

    公开(公告)号:US5879350A

    公开(公告)日:1999-03-09

    申请号:US719005

    申请日:1996-09-24

    摘要: A multi-axial bone screw assembly includes a bone screw having a partially spherical head. The bone screw head is truncated at an upper surface in which a tool receiving recess is defined. The assembly includes a receiver member including a central bore that defines a tapered recess to receive a contracting collet carrying the head of the bone screw. The bore of the receiver member also defines a channel communicating with the recess and configured to receive a spinal rod therein. A portion of the channel is threaded to receive a set screw above the rod. The assembly also includes a contracting collet disposed between the rod and the head of the bone screw. The collet defines a partially spherical recess to receive the head of the bone screw, and includes deflectable fingers that substantially surround the screw head. As the set screw is tightened into the receiver member, the set screw compresses the rod against the collet, which presses the collet into the tapered recess of the receiver member, thereby deflecting the fingers of the collet against the bone screw head.

    Multi-angle bone screw assembly using shape-memory technology

    公开(公告)号:US5728098A

    公开(公告)日:1998-03-17

    申请号:US744403

    申请日:1996-11-07

    IPC分类号: A61B17/58 A61B17/00 A61B17/70

    摘要: 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.

    Non-metallic implant devices and intra-operative methods for assembly and fixation
    6.
    发明申请
    Non-metallic implant devices and intra-operative methods for assembly and fixation 有权
    非金属植入装置和术中用于组装和固定的方法

    公开(公告)号:US20080167717A9

    公开(公告)日:2008-07-10

    申请号:US11703059

    申请日:2007-02-06

    IPC分类号: A61F2/44

    摘要: This invention relates to orthopedic implants and to methods of treating bone defects. More specifically, but not exclusively, the present invention is directed to non-metallic implants and to methods for intra-operative assembly and fixation of orthopedic implants to facilitate medical treatment. The non-metallic implant assembly can be secured to underlying tissue by a fastener, such as a bone screw, that is capable of swelling on contact with fluid in the underlying tissue. Alternatively, the non-metallic implant assembly can be assembled intra-operatively using a fastener that is adhesively bonded to a bone plate or the bone plate can be deformed using heat, force, or solvents to inhibit withdrawal of the fastener. In preferred embodiments, both the fastener and the bone plate are formed of biodegradable material.

    摘要翻译: 本发明涉及矫形植入物和治疗骨缺损的方法。 更具体地但非唯一地,本发明涉及非金属植入物以及用于手术中组装和固定矫形植入物以方便医疗的方法。 非金属植入物组件可以通过紧固件(例如骨螺钉)固定到下面的组织上,该紧固件能够在与下面的组织中的流体接触时膨胀。 或者,非金属植入物组件可以使用粘合剂粘合到骨板上的紧固件在手术中组装,或者骨板可以使用热,力或溶剂变形以阻止紧固件的拉出。 在优选实施例中,紧固件和骨板都是由可生物降解的材料形成的。

    Multi-angle bone screw assembly using shape-memory technology
    8.
    发明授权
    Multi-angle bone screw assembly using shape-memory technology 有权
    使用形状记忆技术的多角度骨螺钉组件

    公开(公告)号:US06287311B1

    公开(公告)日:2001-09-11

    申请号:US09595047

    申请日:2000-06-12

    IPC分类号: A61B1770

    摘要: 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.

    摘要翻译: 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。

    Device for linking adjacent rods in spinal instrumentation
    9.
    发明授权
    Device for linking adjacent rods in spinal instrumentation 失效
    用于连接脊柱器械中的相邻杆的装置

    公开(公告)号:US5947966A

    公开(公告)日:1999-09-07

    申请号:US946954

    申请日:1997-10-08

    IPC分类号: A61B17/70 A61B17/58

    CPC分类号: A61B17/7052

    摘要: One embodiment of a spinal fixation system including a pair of longitudinal members 11, 12 positionable adjacent the spine, means for engaging longitudinal members to the spine 13, 14, a pair of wedge members 241 each having a bearing surface 242 configured to bear on a longitudinal member 11, 12, and a connector 200 configured to span a distance between the longitudinal members 11, 12. The connector 200 includes a pair of engaging members 205, 212 each having a fixation portion 207, 214 and a connecting portion 209, 216, and a bridge members 202 attachable to the connecting portions 209, 216. The engaging members 205, 212 each define a thru-hole 225 for receiving one of the wedge members 241. The thru-holes 225 are aligned so that when one of the wedge members 241 is advanced through the thru-hole 225, the bearing surface 242 will bear on a corresponding longitudinal member 11, 12 to force the longitudinal member 11, 12 into contact with the fixation surface 220, 221 and engage the longitudinal member 11, 12 to the connector 200. In a specific embodiment, the bridge member 200 defines a slot 203 and a fastener bore 227 having an axis D' intersecting the slot 203. In this embodiment, the second connecting portion 216 is insertable into the slot 203 to intersect the axis D' of the bone 227, whereby a fastener 230 received in the bore 227 will clamp the second connecting portion 216 to the bridge member 202.

    摘要翻译: 一种脊柱固定系统的一个实施例,其包括可邻近脊柱定位的一对纵向构件11,12,用于将纵向构件接合到脊柱13,14的一对楔形构件241,每个楔形构件241具有构造成承受 纵向构件11,12和连接器200构造成跨越纵向构件11,12之间的距离。连接器200包括一对接合构件205,212,各自具有固定部分207,214和连接部分209,216 以及可连接到连接部分209,261的桥构件202.接合构件205,212各自限定用于容纳楔形构件241中的一个的通孔225.通孔225对准,使得当 楔形构件241推进穿过通孔225,支承表面242将承载在相应的纵向构件11,12上,以迫使纵向构件11,12与固定表面220,221接触并接合lo 纵向构件11,12连接到连接器200.在具体实施例中,桥构件200限定狭槽203和具有与槽203相交的轴线D'的紧固件孔227.在该实施例中,第二连接部分216可插入 槽203与骨227的轴线D'相交,由此容纳在孔227中的紧固件230将夹紧第二连接部分216到桥构件202。

    Multi-axial screw
    10.
    发明授权
    Multi-axial screw 失效
    多轴螺丝

    公开(公告)号:US5891145A

    公开(公告)日:1999-04-06

    申请号:US892582

    申请日:1997-07-14

    IPC分类号: A61B17/58 A61B17/70

    摘要: A spinal fixation assembly is provided that includes a bone engaging fastener and an elongated member, such as a spinal rod. The fixation assembly is a multi-axial assembly that permits fixation of the bone engaging fastener to the spinal rod at any of a continuous range of angles relative to the rod in three-dimensional space. The fixation assembly includes a receiver member having a bore therethrough, the walls of which are tapered near the bottom, and a channel communicating with the bore and having an upper opening at the top of the receiver member for insertion of a spinal rod. Also included are an outer wedge member and an inner wedge member, both of which have generally the shape of a washer and a bore therethrough. In each wedge member, the respective bore is not parallel to the central axis of the respective wedge member. Additionally, the outside surfaces of the wedge members may be tapered, and the respective bores may be tapered, so as to self-lock when seated and tightened. The bone engaging fastener fits within the bore of the inner wedge member, which in turn fits within the bore of the outer wedge member, which in turn fits within the tapered sides of the receiver member. When the desired position of the bone engaging fastener in three-dimensional space is attained, the components are seated to achieve a tight friction fit.

    摘要翻译: 提供脊柱固定组件,其包括骨接合紧固件和细长构件,例如脊椎杆。 固定组件是多轴向组件,其允许骨接合紧固件以三维空间中相对于杆的连续角度的任何角度固定到脊柱杆。 所述固定组件包括具有穿过其中的孔的接收器构件,其壁在底部附近是锥形的,以及与所述孔连通并且在所述接收器构件的顶部具有用于插入脊椎杆的顶部开口的通道。 还包括外部楔形构件和内部楔形构件,两者都具有大致垫圈的形状和穿过其的孔。 在每个楔形构件中,相应的孔不平行于相应楔形构件的中心轴线。 此外,楔形构件的外表面可以是锥形的,并且各个孔可以是锥形的,以便在就座和紧固时自锁。 骨接合紧固件装配在内楔构件的孔内,内楔形构件的孔又装配在外楔形构件的孔内,该锥形构件又装配在接收构件的锥形侧内。 当达到骨接合紧固件在三维空间中的期望位置时,组件就位以达到紧密的摩擦配合。