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Prosthetic holder and its application

A technology of clamper and prosthesis, applied in the direction of prosthesis, fixator, internal fixator, etc., can solve the problem that it is difficult to distinguish between prosthesis and prosthesis holder, and the stability of implants in the intervertebral disc space cannot be ensured, etc. problem, to achieve a useful quality effect

Active Publication Date: 2015-09-09
SPINEART
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for the surgeon to distinguish the prosthesis from the prosthesis holder; in particular, it is difficult for the surgeon to visually observe the frontal position of the prosthesis in contact with the prosthesis holder
[0010] Furthermore, regardless of the existing system (Maverick prosthesis from Medtronics, Mobi-c from LDR, Prodisc from Synthes), separating the prosthesis holder from the prosthesis does not ensure implant stability in the intervertebral disc space sex

Method used

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  • Prosthetic holder and its application
  • Prosthetic holder and its application
  • Prosthetic holder and its application

Examples

Experimental program
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Effect test

Embodiment Construction

[0052] figure 1 An intervertebral disc prosthesis is shown consisting of at least two parts movable relative to each other, the parts of which are shown separated from each other.

[0053] The prosthesis 2 includes an upper plate and a lower plate, and is about a square with rounded corners when viewed from above. In this embodiment, each plate of the prosthesis 1 measures approximately 1.5 cm by 1.3 cm. The lower plate includes a recess in which a dome 25 is seated. The upper plate includes a concave recess shaped to correspond to the dome.

[0054] Prosthesis 2 consists of figure 2 The protruding elements of the corresponding prosthesis holder are complementary to the hollow elements. In particular, each plate includes grooves 21 along opposite sides forming a cam. Recesses 23 (four in total, two on the left side of the prosthesis and two on the right side of the prosthesis, ie two per plate) are intended to receive the prosthesis 8 of the prosthesis holder. The dimen...

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Abstract

Prosthesis holder (1) made of a radiolucent material for a disc prosthesis (2) constituted by at least two parts which are mobile in relation to each another, including, on one side an element (9) for coupling to a sleeve and on the other side, an element for reversible coupling to a disc prosthesis, the reversible coupling element is arranged in order to allow decoupling, by simple traction exerted perpendicularly to a spinal column when the disc prosthesis has been correctly impacted between two vertebrae and the retention force of the reversible coupling element on the disc prosthesis is adjusted so as not to allow decoupling by simple traction when the disc prosthesis has not been correctly impacted, and an assembly including a prosthesis holder and a disc prosthesis.

Description

technical field [0001] The present invention relates to a prosthetic holder for an intervertebral disc and its use. Background technique [0002] Spinal pathologies are gradually treated by so-called "non-fusion" techniques and in particular by implantation of intervertebral disc prostheses. [0003] These prostheses appear to be producing good results. [0004] However, their implantation is a major and sometimes difficult operation. In fact, the ease and precision of implantation play a major role in the end result, almost as much as the quality of the disc prosthesis itself. [0005] In fact, the position of the prosthesis in the disc space must be perfect to ensure proper function. The surgeon uses X-rays to verify the position of the prosthesis during surgery. [0006] Disc prostheses are small, difficult objects (about a centimeter in their largest dimension and a few millimeters thick). Its installation therefore requires the use of a separate device called a pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/46
CPCA61F2002/30131A61F2/4425A61F2230/0013A61F2002/30841A61F2/4611A61F2002/3082A61F2/0095A61F2220/0025A61F2/442A61F2002/30649A61F2002/4624A61F2002/30904A61F2002/305A61F2/4603A61B17/70A61F2/44A61F2/46
Inventor 克里斯托夫·菲雷尔热罗姆·勒维厄
Owner SPINEART
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