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    • 1. 发明授权
    • Bone fastener and method of installing same
    • 骨紧固件及其安装方法
    • US4711232A
    • 1987-12-08
    • US813224
    • 1985-12-23
    • Artur FischerWolfgang Kramer
    • Artur FischerWolfgang Kramer
    • A61B17/68A61B17/88A61F5/04
    • A61B17/686A61B17/1655
    • A fastener for anchoring in a bore in a bone has a screw having a substantially cylindrical outer surface formed with a helical screwthread. This screw has at its screwthread a thread diameter and between the turns of the thread at the surface a root diameter smaller than the thread diameter. A synthetic-resin anchor sleeve of a resilient fitted in the bore is of an outside diameter corresponding generally to the diameter of the bore and has an outer end formed with an outwardly open polygonal-section recess, an inner end formed with an inwardly open and transversely throughgoing slot, an outer end portion of an inside diameter greater than the root diameter but smaller than the thread diameter, an inner end portion of an inside diameter smaller than the root diameter, and an external helicoidal screwthread extending about two-thirds of the length of the sleeve from its inner end toward its outer end.
    • 用于锚定在骨中的孔中的紧固件具有螺钉,其具有形成有螺旋形螺纹的基本上圆柱形的外表面。 该螺钉在其螺纹处具有螺纹直径,并且在表面处的螺纹的匝之间的根直径小于螺纹直径。 弹性装配在孔中的合成树脂锚定套筒的外径通常对应于孔的直径,并且具有形成有向外开放的多边形部分凹部的外端,内端形成有向内开口和 横向通过狭槽,内径大于根直径但小于螺纹直径的内端部分,内径小于根直径的内端部分,以及外螺纹螺纹延伸约三分之二 套筒从其内端朝向其外端的长度。
    • 4. 发明授权
    • Anchoring arrangement kit
    • 锚定安排工具包
    • US4114329A
    • 1978-09-19
    • US794238
    • 1977-05-05
    • Artur FischerKlaus Fischer
    • Artur FischerKlaus Fischer
    • B23B51/00E04B1/41F16B13/00F16B13/14E21B17/10
    • B23B51/0027E04B1/41F16B13/146F16B2013/007Y10T408/5586
    • An anchoring arrangement kit includes a drilling tool adapted to drill a generally cylindrical anchoring hole in a support structure. The kit further includes a support arrangement which supports the drill for rocking or orbiting motion to thereby enlarge the bottom region of the cylindrical hole, the arrangement including an abutment member which is stationary, and a cover member which rotates with the drilling tool during the undercutting operation, these members having complementary concave and convex contact surfaces for the rocking or orbiting motion of the drilling tool. The kit further includes a plurality of anchoring elements each having an anchoring member and a cap member surrounding the trailing end portion of the anchoring member so as to support the anchoring element at an open end of the hole with a clearance between the anchoring member and the surface bounding the hole. The kit further comprises an arrangement for introducing hardenable material into the clearance through an opening in the leading end of the anchoring member, which includes an injection device of the cylinder-and-piston type, and a shielding sleeve to guide the hardenable material from the injection device toward the opening and into the clearance. Finally, the kit includes a stirrer for mixing the hardenable material which stirrer has an entraining portion which has a receiving passage adapted to at least partly accommodate the drill bit of the drilling tool.
    • 锚定布置套件包括适于在支撑结构中钻一个大致圆柱形的锚定孔的钻孔工具。 该套件还包括支撑装置,其支撑用于摆动或轨道运动的钻头,从而扩大圆柱形孔的底部区域,该装置包括静止的抵接构件,以及在底切期间与钻具一起旋转的盖构件 这些构件具有用于钻具的摇摆或轨道运动的互补的凹凸接触表面。 套件还包括多个锚固元件,每个锚固元件具有锚定构件和围绕锚固构件的后端部分的盖构件,以便将锚固元件支撑在孔的开口端处,锚定构件和锚定构件之间的间隙 表面边界孔。 套件还包括用于通过锚固构件的前端中的开口将可硬化材料引入到间隙中的装置,其包括气缸和活塞型的注射装置,以及屏蔽套管,用于将可硬化材料从 注射装置朝向开口进入间隙。 最后,试剂盒包括用于混合可硬化材料的搅拌器,该搅拌器具有夹持部分,该夹带部分具有适于至少部分地容纳钻孔工具的钻头的接收通道。
    • 8. 发明授权
    • Expansion anchor
    • 膨胀锚
    • US3785241A
    • 1974-01-15
    • US3785241D
    • 1971-12-03
    • FISCHER ARTUR
    • FISCHER A
    • E04B1/38E04B1/61F16B5/02F16B13/00F16B13/06F16B13/04
    • F16B5/02F16B13/00F16B13/061
    • An expansion anchor sleeve has a leading portion and a circumferential wall which is circumferentially complete at the leading portion but subdivided into a plurality of longitudinal webs rearwardly of the leading portion. The webs each have two axially adjacent sections the first one of which extends rearwardly from the leading portion and has a greater radial thickness and the second one of which extends rearwardly from the first section and has a lesser radial thickness. At the juncture between the two sections of each web a buckling line is provided and the first portion extends radially outwardly from the longitudinal axis of the sleeve at an acute angle thereto, whereas the second portion extends in substantial parallelism with the longitudinal axis. A screw or similar means is provided for subjecting the sleeve to axial tensile forces to thereby effect radial outward buckling of the two sections of each web with reference to one another.
    • 膨胀锚套具有引导部分和周向壁,该引导部分和周向壁在引导部分周向地完整,但是在引导部分之后被细分成多个纵向腹板。 腹板每个具有两个轴向相邻的部分,第一个部分的第一部分从前部部分向后延伸并且具有较大的径向厚度,并且其中的第二部分从第一部分向后延伸并且具有较小的径向厚度。 在每个腹板的两个部分之间的接合处设置有一个弯曲线,并且第一部分以与其成锐角的套筒的纵向轴线径向向外延伸,而第二部分与纵向轴线基本平行地延伸。 提供了一种螺钉或类似的装置,用于使套筒受到轴向张力的作用,从而相对于彼此而影响每个腹板的两个部分的径向向外弯曲。