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Derotation instrument with reduction functionality

A technology of appliances and reduction elements, applied in the direction of fixators, internal fixators, spinal implants, etc.

Active Publication Date: 2014-12-03
DEPUY SPINE SARL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, reduction and torsion correction require different instruments
Thus, one appliance must be removed to allow the other to be used

Method used

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  • Derotation instrument with reduction functionality
  • Derotation instrument with reduction functionality
  • Derotation instrument with reduction functionality

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Embodiment Construction

[0034] Certain exemplary embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the apparatus and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those of ordinary skill in the art will appreciate that the apparatus and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined only by the claims. Features illustrated or described in connection with one exemplary embodiment may be combined with features of other embodiments. Such modifications and changes are intended to be included within the scope of the present invention.

[0035] The terms "a" and "an" are used herein to mean one or more than one (ie, mean at least one) of a grammatical object. By way of example, "an element" means one element or more than ...

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PUM

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Abstract

Instruments and methods are provided for manipulating a bone anchor and a spinal fixation element. The instruments and methods disclosed herein are particularly suited to facilitate rotation of a bone anchor relative to another bone to correct the angular rotation of the vertebrae attached to the bone anchor. The instrument does not require the spinal fixation element to be inserted into the bone anchor prior to manipulation. The instrument further may be used in the insertion of the spinal fixation element into the bone anchor.

Description

[0001] related application [0002] This application claims the benefit of US Patent Application 12 / 075,412, filed March 10, 2008, the contents of which are hereby incorporated by reference. Background technique [0003] During spinal deformity surgery, curvature of the spine (eg, coronal curvature of the spine and / or sagittal curvature of the spine) can be corrected by implanting structures of bone anchors and spinal bone fixation elements. Examples of bone anchors used in such structures include hooks and bone screws. An example of a spinal fixation element used in such a configuration is a rod. [0004] In one type of spinal surgery procedure, the doctor first exposes the back of the spine and attaches bone anchors to selected vertebrae of the spine. The physician then inserts the spinal fixation elements into the receiving portions of the bone anchors to connect the selected vertebrae, thereby fixing the relative positions of the vertebrae. [0005] Typically, controlle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/70A61F2/44
CPCA61B17/7086A61B17/7076A61B17/7032A61B17/708
Inventor E·科尔布T·J·伦科R·富尔尼耶J·R·多纳赫S·D·斯塔德
Owner DEPUY SPINE SARL