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US20050203519: Rod-like element for application in spinal or trauma surgery, and stabilization device with such a rod-like element

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Filing Information

Inventor(s) Jurgen Harms · Lutz Biedermann · Helmar Rapp ·
Assignee(s) None listed in document.
Correspondent BARLEY SNYDER ·
Application Number US11075235
Filing date 03/08/2005
Publication date 09/15/2005
Predicted expiration date 03/08/2025
U.S. Classifications 606/61  ·
International Classifications --
Kind CodeA1
Foreign Priority DE102004011685.7 - 03/09/2004 ·
21 Claims, 4 Drawings


Abstract

A rod-shaped element for use in spinal or trauma surgery, having a first section for connecting to a first bone anchoring element and a second section for connecting to a second bone anchoring element is described. The rod-shaped element also includes a first elastic flexible element that is capable of elastic deformation when a force acts on it transverse to the rod axis. The first section and the second section are capable of shifting relative to each other in the direction of the rod axis. In a stabilization device for use in spinal or trauma surgery, the rod-shaped element allows for a controlled motion of the parts to be stabilized relative to each other so flexural motion is adjusted separately from the adjustment of the mobility in axial direction.

Independent Claims | See all claims (21)

  1. 1. A rod-shaped element having a rod axis, for use in spinal or trauma surgery, comprising a first section connected to a first bone anchoring element; a second section connected to a second bone anchoring element; and a first flexible element capable of elastic deformation when a force acts on said flexible element transversely to the rod axis, wherein the first section and the second section are capable of constantly moving relative to each other in the direction of the rod axis.
  2. 17. A method of stabilizing two bone or vertebrae comprising: anchoring a first bone anchoring element having a receiver member in a bone or vertebrae; anchoring a second bone anchoring element having a receiver member in a second bone or vertebrae; inserting a rod-shaped element onto said receiving members of said bone anchoring elements, wherein said rod-shaped element has a rod axis and comprises a first section connected to said first bone anchoring element; a second section connected to a second bone anchoring element; and a first flexible element between said first section and said second section capable of elastic deformation when a force acts on said flexible element transversely to the rod axis, wherein the first section and the second section are capable of shifting relative to each other in the direction of the rod axis.
  3. 20. A method of stabilizing bone or vertebrae comprising: anchoring a first pedicle screw to a first bone or vertebrae; anchoring a second pedicle screw to a second bone or vertebrae; inserting a rod-shaped element having an elastic section into said first pedicle screw and said second pedicle screw, whereby the elasticity of the connection between the bone anchoring elements with respect to the translation motion is decoupled from the flexural elasticity of the rod.

References Cited

The current document has no citations.

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