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    • 63. 发明授权
    • Fastening system
    • 紧固系统
    • US3718067A
    • 1973-02-27
    • US3718067D
    • 1970-12-15
    • FISCHER ARTUR
    • FISCHER A
    • B28D1/14B23B51/02F16B13/12F16B13/13F16B25/10G03C7/28F16B13/06
    • F16B25/0094B23B2251/18B23B2251/241F16B13/124F16B25/0026F16B25/103
    • A FLAT FIRST MEMBER HAS TWO MAJOR SURFACES AND IS PROVIDED ON ITS LEADING END PORTION WITH CUTTING EDGES. FOR DRILLING HOLES IN A SUPPORT STRUCTURE. A PAIR OF ELONGATED RIBS ARE EACH PROVIDED ON ONE OF THE MAJOR SURFACES EXTENDING BETWEEN THE TRAILING AND LEADING END PORTION OF THE FIRST MEMBER AND LOCATED AT OPPOSITE SIDES OF A CENTER LINE CONNECTING THE END PORTIONS. THE RIBS HAVE RESPECTIVE INNER EDGES WHICH FACE TOWARDS THE CENTER LINE AND WHICH COVERGE OVER AT LEAST A PART OF THEIR LENGTH AT AN ACUTE ANGLE TOWARDS THE LEADING END PORTION. AN ELONGATED SECOND MEMBER HAS A FRONT PORTION AN AXIAL SLOT OF WHICH CAN MATING BUT RELEASABLY RECEIVE AT LEAST THE TRAILING END PORTION OF THE FIRST MEMBER SO THAT WHEN BY ENGAGEMENT OF THE REAR PORTION OF THE SECOND MEMBER WITH A TOOL THE TWO MEMBERS ARE JOINTLY ROTATED, THE CUTTING EDGES OF THE FIRST MEMBER WILL DRILL A HOLE IN THE SUPPORT STRUCTURE WHEREUPON THE SECOND MEMBER IS RELEASED FROM THE FIRST MEMBER IS INSERTABLE INTO THE HOLE. AN ELONGATED THIRD MEMBER IS INSERTABLE INTO THE THUS-DRILLED HOLE AND HAS AN EXPANDABLE PORTION PROVIDED WITH AN AXIAL SLIT SO CONFIGURATED THAT WHEN IT RECEIVES FORCIBLY THE TRAILING END PORTION OF THE FIRST MEMBER, IT IS SPREAD APART IN LOCKING ENGAGEMENT WITH THE MATERIAL OF THE SUPPORT STRUCTURE SURROUNDING THE HOLE. THE OPPOSIDE END OF THE THIRD MEMBER IS CONFIGURATED AS A THREADED FASTENING PORTION WHICH PROJECTS FROM THE HOLE AND TO WHICH AN OBJECT MAY BE SECURED.

      D R A W I N G
    • 64. 发明授权
    • Expandible connector for fractured bones
    • 用于破裂骨的可扩展连接器
    • US3716051A
    • 1973-02-13
    • US3716051D
    • 1971-09-08
    • FISCHER ARTUR
    • FISCHER A
    • A61B17/58A61B17/72A61B17/74A61F2/30A61F5/04
    • A61B17/742A61B17/7266A61F2002/30579
    • A sleeve has a trailing end portion which is to be lodged in one fragment of a fractured bone, and an open-ended expansible leading end portion which is to be lodged in the other fragment, so that the sleeve bridges the fracture. The leading end portion is subdivided by a plurality of longitudinal slots into radially expansible shanks. A threaded member extends through a central passage of the sleeve, and in this passage adjacent the leading end of the leading end portion is located an expander member an exposed end face of which faces the open end. Integral parts of the expansible shanks extend at the open end transversely of the central passage at least to a threaded bore provided in the expansion member, in which bore the threaded element engages.
    • 套筒具有一个后端部,该尾端部分被放置在骨折骨的一个片段中,以及一个开放式可扩展的前端部分,该前端部分将被放置在另一个片段中,使得该套筒桥接该骨折。 前端部分由多个纵向狭槽分成径向可膨胀的柄部。 螺纹构件延伸穿过套筒的中心通道,并且在与前端部分的前端相邻的该通道中设置有其暴露的端面面向开口端的膨胀器构件。 可膨胀柄的整体部分至少延伸到设置在膨胀构件中的螺纹孔的横向于中心通道的开口端延伸,螺纹元件接合在该螺纹孔中。