Intervertebral implant

An implant, intervertebral technology, applied in the field of intervertebral implants, can solve the problem of impossibility, x-ray opacity

Inactive Publication Date: 2002-09-04
SYNTHES GMBH
View PDF1 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A disadvantage of this known implant is its opacity to X-rays, which makes postoperative observation of the merging of the vertebral bodies impossible

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intervertebral implant
  • Intervertebral implant
  • Intervertebral implant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] figure 1 and figure 2 The intervertebral implant shown has the shape of a hollow cylinder. It has a cover surface 1 , a base surface 2 , a hollow cylindrical wall 3 comprising an outer surface 4 and an inner surface 5 , and a hollow cylindrical central axis 6 .

[0025] At least ninety-five percent of the volume of the implant consists of an X-ray transparent material such as PEEK (polyaryletherketones). The material used must have a modulus of elasticity between 1 and 20 GPa. Preferably the modulus of elasticity is between 3 and 5 GPa.

[0026] The intervertebral implant also carries three markers (not shown) made of x-ray-opaque material (titanium or tantalum), which together account for at most 100% of the intervertebral implant. five percent of the volume. By total volume (100%) is understood the volume occupied by the material of the intervertebral implant, excluding the hollow space enclosed by the implant.

[0027] Both the cap surface 1 and the base surfa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
elastic modulusaaaaaaaaaa
elastic modulusaaaaaaaaaa
heightaaaaaaaaaa
Login to view more

Abstract

An intervertebral implant is shaped in the form of a hollow cylinder and has a cover face, a base face, a hollow cylinder wall with an outer lateral area and an inner lateral area, as well as a hollow cylinder central axis. The implant is formed at least 95 percent by volume of a radiolucent material which has a modulus of elasticity of between 1 and 20 GPa. Postsurgical observation is permitted by means of X-rays, and at the same time the implant has a high degree of biocompatibility.

Description

technical field [0001] The invention relates to an intervertebral implant according to the preamble of claim 1 . Background technique [0002] An intervertebral implant of this type is known from DE-A 196 15 938, which is made of an elongated metal plate and is therefore impermeable to X-rays. [0003] A disadvantage of this known implant is its X-ray opacity, which makes postoperative observation of the merging of the vertebral bodies impossible. Contents of the invention [0004] The present invention seeks to remedy the aforementioned disadvantages. It is therefore an object of the present invention to provide an intervertebral implant which allows post-operative observation by X-ray and which at the same time is characterized by a high degree of biocompatibility. [0005] The invention achieves this object by means of an intervertebral implant having the features of claim 1 . Furthermore, the relatively low modulus of elasticity of the X-ray transparent material gen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/00A61B17/02A61F2/00A61F2/30A61F2/44A61F2/46E03C1/04
CPCA61B2017/0256A61F2/442A61F2/4611A61F2002/3008A61F2002/30131A61F2002/30158A61F2002/30187A61F2002/30777A61F2002/30784A61F2002/3082A61F2002/30904A61F2230/0013A61F2230/0026A61F2230/0034A61F2250/0098A61F2002/30593
Inventor 曼努埃尔·沙尔热罗姆·伯恩哈德康拉德·塔格威尔克
Owner SYNTHES GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap