Posterior vertebral support assembly

A technology for supporting components and vertebrae, applied in the direction of internal bone synthesis, internal fixator, fixator, etc., can solve problems such as affecting the life of the wedge block

Inactive Publication Date: 2008-12-03
让・泰勒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this longitudinal stretching is that the wedges are squeezed in the longitudinal direction of traction
However, the condition of this traction action can be considered perfect, especially in order to obtain assisted and limited control over the motion of the vertebrae, at the risk of a large number of repetitive uses of this traction affecting the life of the wedge

Method used

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  • Posterior vertebral support assembly
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Examples

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Embodiment Construction

[0029] figure 1 Represents the posterior vertebral support assembly 1 placed in place on two vertebrae 2 and affected by degeneration of the disc 3 and / or stretching of the ligaments.

[0030] The assembly 1 comprises an interspinous process wedge 5 , two compression side parts 6 and two side transmission parts 7 .

[0031] The wedge block 5 is made of elastically bendable material and includes two curved grooves 8 to allow the wedge block 5 to be inserted between the spinous processes 9 of two vertebrae 2 . According to French patent application number FR9802300, the spinous process 9 can typically cooperate with a wedge. that is:

[0032] - consisting of a core made of silicon and an envelope made of polyester fibres;

[0033] - have an interspinous portion 10 having a height greater than the distance separating the spinous processes 9 when the vertebra 2 is in lordosis, so that it is compressed when the wedge 5 is inserted between the protrusions 9 to release the disc 3...

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Abstract

The invention concerns an assembly (1) comprising an interspinous wedge (5) configured to be inserted between the spinous processes (9) of two vertebrae (2) to be treated, whereof at least one zone designed to be placed between the spinous processes of the vertebrae is made of an elastically deformable material. The assembly (1) further comprises: two compressive lateral elements (6), designed to be placed on either side of the wedge (5) in the longitudinal direction, said compressive lateral elements (6) being deformable between releasing positions, wherein they are relatively spaced apart from the wedge (5) in the transverse direction, and compressive positions, wherein they are relatively close to the wedge (5) in the transverse direction; and two lateral transmission elements (7), placed between the compressive lateral elements (6) and the wedge (5), configured to press against the wedge (5) in the transverse direction thereof, at the interspinous zone (10) of the wedge (5).

Description

technical field [0001] The present invention relates to a posterior vertebra support assembly. [0002] In the case of degenerated intervertebral discs of two vertebrae, and / or stretched degenerated ligaments, it is known to place wedges between the spinous processes of two vertebrae to make vertebral support possible. In this respect, the French patent applications with application numbers FR 9403716 and FR 9802300 filed by the proprietor of the present application are incorporated by reference. Background technique [0003] The wedges in these earlier patent applications are attached to the spinous processes of the two treated vertebrae by two separate ligaments, each passing through the wedge and tightly surrounding the corresponding spinous process. As the spine flexes in a forward direction, the spinous processes separate from each other, causing longitudinal stretching of the wedge. [0004] The disadvantage of this longitudinal stretching is that the wedges are comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/70A61F2/44
CPCA61B17/7067A61B17/7062A61B17/70
Inventor 让·泰勒
Owner 让・泰勒
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