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Bone screw assembly and instruments for implantation of the same

A bone screw, screw technology, applied in the direction of fixator, fastening device, internal fixator, etc., can solve problems such as displacement

Active Publication Date: 2013-03-06
SYNTHES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One problem that can arise with the aforementioned bone fixation devices is that bone screws, pins or nails, for example, can become displaced in the bone or in bone plates, intervertebral implants or intramedullary nails during normal patient movement.

Method used

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  • Bone screw assembly and instruments for implantation of the same
  • Bone screw assembly and instruments for implantation of the same
  • Bone screw assembly and instruments for implantation of the same

Examples

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Embodiment Construction

[0088]A further understanding of the invention will be obtained by reference to the following description and drawings in which like elements are designated by like reference numerals. The present invention relates to bone screw assemblies and instruments for implanting the bone screw assemblies and related methods for using the instruments to implant bone screw assemblies. In particular, the present invention relates to a system and method for facilitating implantation of a first bone screw and a second bone screw, the first bone screw including a through hole passing through the head of the first bone screw along a through hole axis The second bone screw is inserted into the through hole along the axis of the through hole so that the first and second bone screws are implanted in the bone in a stable configuration.

[0089] figure 1 and 2 An embodiment of a bone screw 1 with a screw head 2 comprising a tapered external thread 29 is shown. The bone screw 1 comprises a screw...

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Abstract

A bone screw includes a screw shaft extending longitudinally along a screw axis and a screw head extending from a proximal end of the screw shaft and configured to be releasably coupled to a surgical tool. The bone screw also includes a through hole defining a through hole axis and extending through the screw head, the through hole axis intersecting the screw axis at an acute angle a, the through hole being adapted to receive therein a second screw and tapering from a first end at a proximal end of the screw head to a second end opening to an outer surface of the screw head.

Description

[0001] priority [0002] This application claims priority to U.S. Provisional Patent Application No. 61 / 334,234, filed May 13, 2010, and entitled "Bone Screw Assemblies and Implants for Such Bone Screw Assemblies." entry", which is incorporated herein by reference in its entirety. technical field [0003] The present invention generally relates to bone screw assemblies and instruments for implanting the bone screw assemblies and an associated method of using the instruments to implant bone screw assemblies. More particularly, the present invention relates to a bone screw including a second screw and an insertion instrument for implanting the bone screw and a method of implanting the bone screw and the second screw by using the insertion instrument. Background technique [0004] In the field of orthopedic surgery, bone fixation devices using bone screws are commonly used. These bone fixation devices include bone plates, intervertebral implants or intramedullary nails by whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88A61B17/86
CPCA61B2017/90A61B17/725A61B17/8888A61B17/8877A61B17/861A61B17/8685A61B17/7258A61B17/90A61B17/17A61B17/86A61B17/88
Inventor T·奥韦雷斯S·楚尔施米德D·弗吕里
Owner SYNTHES GMBH