-
公开(公告)号：US5396880A
公开(公告)日：1995-03-14
申请号：US865349
申请日：1992-04-08
申请人： Jonathan Kagan , Roger White , David L. Brumfield
发明人： Jonathan Kagan , Roger White , David L. Brumfield
CPC分类号： A61B1/0051 , A61B1/042 , A61B1/3135 , A61B5/032
摘要： A system for direct visualization of the spine and the epidural and/or intra-discal space to facilitate diagnosis and treatment of spinal conditions and that is adapted for percutaneous introduction into the spinal space. The system includes a disposable flexible catheter, a fiber-optic bundle disposed within the catheter which is connected to a light source and camera. The bundle is removably and adjustably connected to the proximal end of the catheter to permit rotation of the bundle relative to the catheter. A mechanism for controllably deflecting the tip of the catheter is provided to vary the viewing angle of the fiber-optic bundle within and to assist in steering the catheter through the spinal space. The mechanism includes a deflection wire extending through the catheter and affixed at the distal end thereof. The proximal end of the deflection wire is affixed to a sleeve which is slidably disposed around the catheter and within a housing. The housing includes an internal flange that defines a stop surface which is contacted by the sleeve as the catheter and deflection wire is moved in a first direction. After the sleeve contacts the stop surface, further movement of the catheter in the first direction causes tension in the wire between the sleeve and the wire's securement to the catheter, thereby bending the catheter tip in the direction of the securement. The catheter can be rotated with the tip in its deflected position to provide a conical viewing region within the spinal space.
摘要翻译： 用于脊柱和硬膜外和/或椎间盘内空间的直接可视化的系统，以便于脊柱状况的诊断和治疗，并适于经皮引入脊柱空间。 该系统包括一次性柔性导管，布置在导管内的光纤束，其连接到光源和照相机。 束可拆卸地并且可调节地连接到导管的近端以允许束相对于导管旋转。 提供用于可控地偏转导管的尖端的机构以改变光纤束的视角并帮助将导管转向脊柱空间。 该机构包括延伸穿过导管并固定在其远端的偏转线。 偏转线的近端固定到套筒上，该套筒可滑动地设置在导管周围并在壳体内。 壳体包括内部凸缘，其限定当导管和挠曲线沿第一方向移动时由套筒接触的止动表面。 在套筒接触止动表面之后，导管在第一方向上的进一步运动导致套管和电线固定到导管之间的线中的张力，从而沿着固定方向弯曲导管尖端。 导管可以随着尖端在其偏转位置旋转以在脊柱空间内提供锥形观察区域。
-
公开(公告)号：USRE43526E1
公开(公告)日：2012-07-17
申请号：US12052465
申请日：2008-03-20
申请人： Matthew M. Morrison , Eric A. Loveless , David L. Brumfield , B. Thomas Barker , Catalina J. Carroll , David Miller , Dominique Petit
发明人： Matthew M. Morrison , Eric A. Loveless , David L. Brumfield , B. Thomas Barker , Catalina J. Carroll , David Miller , Dominique Petit
IPC分类号： A61B17/56
CPC分类号： A61B17/7088 , A61B17/7091
摘要： An introduction apparatus for approximating a longitudinal member and an implant to permit fixation therebetween. The introduction apparatus having a gripping nose for securely engaging an implant, a lateral approximation mechanism for laterally aligning an implant and an offset longitudinal member, and a reduction mechanism for reducing the vertical distance between the implant and the longitudinal member. The introduction apparatus is provide with a gripping nose actuated by axial movement of a clamping shaft in an outer sleeve. The clamping shaft further includes an axial cannula for passage of a fastener to the implant.
摘要翻译： 用于近似纵向构件和植入物以允许其间固定的引入装置。 所述引入装置具有用于牢固地接合植入物的夹持鼻，用于横向对准植入物和偏移纵向构件的横向近似机构，以及用于减小植入物和纵向构件之间的垂直距离的减速机构。 引入装置具有通过夹紧轴在外套筒中的轴向运动而致动的抓持头。 夹紧轴还包括用于将紧固件通过到植入物的轴向插管。
-
公开(公告)号：US06248107B1
公开(公告)日：2001-06-19
申请号：US09526197
申请日：2000-03-15
IPC分类号： A61B1756
CPC分类号： A61B17/7037 , A61B17/7038 , A61B17/7041
摘要： A method and an assembly for reducing a displaced vertebra and connecting the displaced vertebra to a spinal implant rod. The assembly has a reduction bolt with machine threads on one end and coarse threads on the other. A connection unit attaches the spinal rod to the reduction bolt, and until it is tightened, the connection unit allows the reduction bolt to slide within the connection unit. The connection unit includes a washer that rides against the side of the reduction bolt, and a nut is threaded onto the machine threads of the reduction bolt over a collar. The collar open is open at both ends and is of a size to readily slide over the reduction bolt. The posterior face of the collar has a notch to accept that portion of the lateral side of the washer as it presses against the reduction bolt. The notch is part of the open end of the collar into which is slide over the reduction bolt and down onto the connection unit. Arranged in this fashion, the nut can be tightened against the collar to move the displaced vertebra toward the longitudinal member. The third clamp can be tightened to secure the reduction bolt to the longitudinal member, and then the nut and the collar can be removed from the patient without the vertebra moving away from the longitudinal member.
摘要翻译： 一种用于减少移位的椎骨并将移位的椎骨连接到脊柱植入物杆的方法和组件。 该组件具有一端的机螺纹和另一端的粗螺纹的减压螺栓。 连接单元将脊柱杆附接到减压螺栓，并且直到其被紧固为止，连接单元允许还原螺栓在连接单元内滑动。 连接单元包括一个靠在减压螺栓侧面上的垫圈，并且一个螺母被拧到减速螺栓的机械螺纹上。 套环打开在两端是开放的，并且具有容易在减压螺栓上滑动的尺寸。 轴环的后表面具有凹口，以在垫圈压靠减速螺栓时接纳垫圈侧面的那部分。 凹口是套环的开口端的一部分，在其中滑过减压螺栓并向下滑动到连接单元上。 以这种方式布置，螺母可以紧紧地靠在套环上，以使移位的椎骨向纵向构件移动。 可以拧紧第三夹具以将还原螺栓固定到纵向构件上，然后可以从患者身上取下螺母和套环，而不会使椎骨从纵向构件移开。
-
公开(公告)号：US5910141A
公开(公告)日：1999-06-08
申请号：US798092
申请日：1997-02-12
申请人： Matthew M. Morrison , Eric A. Loveless , David L. Brumfield , B. Thomas Barker , Catalina J. Carroll , David Miller , Dominique Petit
发明人： Matthew M. Morrison , Eric A. Loveless , David L. Brumfield , B. Thomas Barker , Catalina J. Carroll , David Miller , Dominique Petit
CPC分类号： A61B17/7088 , A61B17/7091
摘要： An introduction apparatus for approximating a longitudinal member and an implant to permit fixation therebetween. The introduction apparatus having a gripping nose for securely engaging an implant, a lateral approximation mechanism for laterally aligning an implant and an offset longitudinal member, and a reduction mechanism for reducing the vertical distance between the implant and the longitudinal member. The introduction apparatus is provide with a gripping nose actuated by axial movement of a clamping shaft in an outer sleeve. The clamping shaft further includes an axial cannula for passage of a fastener to the implant.
摘要翻译： 用于近似纵向构件和植入物以允许其间固定的引入装置。 所述引入装置具有用于牢固地接合植入物的夹持鼻，用于横向对准植入物和偏移纵向构件的横向近似机构，以及用于减小植入物和纵向构件之间的垂直距离的减速机构。 引入装置具有通过夹紧轴在外套筒中的轴向运动而致动的抓持头。 夹紧轴还包括用于将紧固件通过到植入物的轴向插管。
-
公开(公告)号：US5810878A
公开(公告)日：1998-09-22
申请号：US798091
申请日：1997-02-12
申请人： Marc H. Burel , David L. Brumfield , Thomas Barker
发明人： Marc H. Burel , David L. Brumfield , Thomas Barker
CPC分类号： A61B17/7086
摘要： Forceps are provided with a bifurcated gripping nose on one end adapted to pivotally engage an implant while a rod passes between the branches of the bifurcated gripping nose. The forceps further define a fulcrum adjacent the gripping nose. The pivotally engaging gripping nose and included fulcrum permit a surgeon to urge the rod into an opening in the implant with a single instrument while securely gripping the implant. With the implant pivotally engaged by the gripping nose, movement of the forceps towards the rod brings the fulcrum into contact with the rod and further movement urges the rod into an opening in the implant. In an alternative form, the gripping nose is laterally offset to urge a laterally offset rod into alignment with the implant upon rotation of the forceps.
-
公开(公告)号：US5209751A
公开(公告)日：1993-05-11
申请号：US838498
申请日：1992-02-19
CPC分类号： A61B17/7059
摘要： A spinal fixation system includes a relatively rigid fixation plate which is engaged to a plurality of vertebrae by bone screws or bolts. The plate includes a longitudinal slot defined therethrough with an arrangement of scallops formed at the edge of the slot on the upper and lower surfaces of the plate. The scallop arrangement includes a first set of scallops formed at one spherical radius and a second set of scallops nested within the first that are formed at a smaller radius. Thus, the fixation plate can accommodate bone screws or bolts, or other bone engagement or load transmitting components having curved engagement surfaces of various diameters and providing varying degrees of rigidity. In another feature of the invention, a C-shaped ring is provided which encircles the plate to entrap the side walls of the plate, thereby restricting the plate walls from spreading as the bone screws or bolts are tightened onto the plate. The side walls of the plate and the inner walls of the C-shaped ring are correspondingly curved to retain the ring on the plate.
摘要翻译： 脊柱固定系统包括相对刚性的固定板，其通过骨螺钉或螺栓与多个椎骨接合。 该板包括一个限定在其中的纵向狭槽，其中形成有在板的上表面和下表面上的槽的边缘处形成扇贝的布置。 扇形布置包括形成在一个球形半径处的第一组扇贝和嵌套在第一组中的第二组扇形，其以较小的半径形成。 因此，固定板可以容纳具有各种直径的弯曲接合表面并提供不同程度刚度的骨螺钉或螺栓或其它骨接合或负载传递部件。 在本发明的另一个特征中，提供了C形环，其环绕板以捕获板的侧壁，从而当骨螺钉或螺栓紧固在板上时限制板壁的扩展。 板的侧壁和C形环的内壁相应地弯曲以将环保持在板上。
-
公开(公告)号：US4554915A
公开(公告)日：1985-11-26
申请号：US473199
申请日：1983-03-08
申请人： David L. Brumfield
发明人： David L. Brumfield
CPC分类号： A61B17/6425 , A61B17/66
摘要： One external fixation frame, for immobilizing bone segments adjacent a fracture or joint, includes a fixation block with a pair of arms extending from the block across the fracture or joint. Another embodiment has but a single arm while a third embodiment includes one or two arms projecting from each end of the block. A ball and socket joint connects each arm to the block for universal movement thereabout. Length adjustment is accomplished via a turnbuckle formed in each arm. The outer end of each arm includes a slot for connecting to pins inserted in the respective bone segments. Set screws are provided for tightening the ball and socket joints and for holding the pins in the slots.
摘要翻译： 用于将骨段固定在骨折或关节附近的一个外部固定框架包括具有一对臂的固定块，所述一对臂从所述块延伸穿过所述骨折或关节。 另一实施例具有单个臂，而第三实施例包括从块的每个端部突出的一个或两个臂。 球窝接头将每个臂连接到块上，以便在其周围进行通用运动。 通过在每个臂中形成的螺丝扣实现长度调节。 每个臂的外端包括用于连接到插入相应骨段中的销的狭槽。 提供固定螺丝用于拧紧球窝接头，并将销子固定在槽中。
-
公开(公告)号：US08617216B2
公开(公告)日：2013-12-31
申请号：US12931371
申请日：2011-02-01
申请人： David L. Brumfield
发明人： David L. Brumfield
IPC分类号： A61B17/70
CPC分类号： A61B17/7035 , A61B17/7041 , A61B2017/00867
摘要： An orthopedic stabilization system of implants that includes a bone attachment means that provides poly-axial fixation of the system to the vertebrae, and a connector means that connects the bone attachment means to the spinal rod in a fashion that allows variable height adjustment of the spinal rod (dorsal in the case of posterior spinal pedicle fixation). The orthopedic stabilization system includes a locking means with a tightenable ball-joint arrangement that locks a post means to the bone attachment means in a desired relative spatial orientation. Several embodiments are disclosed, some using traditional mechanical locking means such as screw fasteners, taper-locking interfaces and collets. Embodiments are described that use the austenitic transformation of shape memory alloy (SMA) material to effect a locking of both the ball-joint arrangement and the connector means.
摘要翻译： 一种植入物的整形外科稳定系统，其包括提供系统对椎骨的多轴向固定的骨附着装置，以及以允许脊柱的可变高度调节方式将骨固定装置连接到脊柱杆的连接装置 杆（后脊椎椎弓根固定的背面）。 矫形稳定系统包括具有可紧固的球形接头装置的锁定装置，其以期望的相对空间取向将柱装置锁定到骨附着装置。 公开了一些实施例，一些使用传统的机械锁定装置，例如螺钉紧固件，锥形锁定接口和夹头。 描述了使用形状记忆合金（SMA）材料的奥氏体转变来实现球接头装置和连接器装置的锁定的实施例。
-
公开(公告)号：US5947966A
公开(公告)日：1999-09-07
申请号：US946954
申请日：1997-10-08
申请人： Troy Drewry , Michael C. Sherman , James E. Van Hoeck , Denis S. Drummond , David L. Brumfield , M. Neil Anderson
发明人： Troy Drewry , Michael C. Sherman , James E. Van Hoeck , Denis S. Drummond , David L. Brumfield , M. Neil Anderson
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。
-
10.发明授权Method for treating intertrochanteric fracture utilizing a femoral fracture device 失效使用股骨骨折装置治疗转子间骨折的方法
公开(公告)号：US5562666A
公开(公告)日：1996-10-08
申请号：US243754
申请日：1994-05-17
申请人： David L. Brumfield
发明人： David L. Brumfield
CPC分类号： A61B17/1721 , A61B17/1725 , A61B17/744 , A61B17/86
摘要： An apparatus for treating fractures of the femur including a screw and an intramedullary rod. The screw has a threaded portion and a smooth portion. The rod has a head and a stem. There is at least one opening through the head of the rod in an angled direction toward the femoral head relative to the longitudinal axis of the rod. The opening is adapted to slidingly receive the screw to permit the threaded portion of the screw, in use, to engage the femoral head and to allow sliding compression of a femoral neck or intertrochanteric fracture. An optional second opening and second screw which will also allow sliding compression may be provided to prevent rotation and to adapt the fracture device to a variety of applications.
摘要翻译： 一种用于治疗包括螺钉和髓内杆的股骨骨折的装置。 螺杆具有螺纹部分和平滑部分。 杆具有头部和杆部。 至少一个穿过杆的头部的开口以相对于杆的纵向轴线朝向股骨头的成角度的方向。 开口适于滑动地接收螺钉，以允许在使用中的螺钉的螺纹部分接合股骨头并允许股骨颈或转子间骨折的滑动压缩。 可以提供也允许滑动压缩的可选的第二开口和第二螺钉，以防止旋转并使裂缝装置适应于各种应用。
-
-
-
-
-
-
-
-
-
搜索结果
43 条记录 (耗时 0.023 秒)
