Anterior transpedicular screw-and-plate system

A technology of fixing system and plate, applied in the limited field of placement, can solve problems such as arterial or spinal cord injury

Inactive Publication Date: 2011-08-17
SYNTHES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, the use of pedicle screw fixation in the vertebral region is often limited by the location of the screw, since improper placement of the screw leads to possible arterial or spinal cord injury

Method used

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  • Anterior transpedicular screw-and-plate system
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Embodiment Construction

[0030] Certain terms used in the following description are for convenience only and not for limitation. The words "left", "right", "top" and "bottom" indicate directions in the drawings to which reference is made. The words "medial" and "lateral" refer to directions towards and away from, respectively, the geometric center of the facet interference screw and its described components. The words "anterior", "posterior", "superior", "inferior", "lateral", "radial", "axial", "coronal" and related words and / or phrases refer to Location and orientation are preferences and are not meant to be limiting. Terminology includes the words mentioned above, derivatives thereof and words of similar import.

[0031] Certain embodiments of the invention will now be described with reference to the drawings, wherein like reference numerals refer to like parts. A preferred embodiment of the present invention relates to an anterior cervical transpedicular screw and plate system. However, the pr...

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PUM

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Abstract

The present invention discloses an anterior transpedicular bone fixation device (100) including a first plate (105) having at least one fastener hole (120a) configured to receive at least a portion of a first bone fastener and a first rotatable eccentric member (112). The first eccentric member has a first aperture (106) for receiving at least a portion of a central fastener (108). A second plate has at least one fastener hole (120c) configured to receive at least a portion of a second bone fastener and a second rotatable eccentric member (114) with a second aperture (107) for receiving at least a portion of the central fastener, wherein the first and second rotatable eccentric members enable the first plate and second plate to translation with respect to one another. The orientation of the first plate with respect to the second plate can be fixed by advancing the central fastener through the apertures.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 61 / 098036, filed September 18, 2008, entitled "ANTERIOR TRANSPEDICULAR SCREW-AND-PLATE SYSTEM," which The contents of are incorporated by reference herein in their entirety. Background technique [0003] Multilevel cervical procedures place relatively large loads on the anterior cervical screw and plate system, especially in cases of severe three-column lower cervical spine injuries and in multilevel plated reconstructions of osteoporotic bone. Therefore, supplementary posterior instrumentation is recommended to increase primary structural stiffness and limit possible damage to the screw and plate system. The increased number of successful posterior cervical pedicle screw fixations will enable more stable fixation, however, most cervical pathology is anterior and is preferably addressed by an anterior approach. [0004] In addition, the use of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70A61B17/80
CPCA61B17/7059A61B17/8023A61B17/8061A61B17/8047A61B17/8004A61B17/8038A61B17/70A61B17/80A61B17/86A61F2/44
Inventor T·奥弗雷斯S·楚施密德R·弗里格B·莱希曼
Owner SYNTHES GMBH
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