Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Improved Micro-Implants through Laser Sintering

04.10.2010
The Laser Zentrum Hannover e.V. (LZH) has started a new project which plans on using laser micro-sintering to change the surface of implants, for example to improve attachment to surrounding tissue or to deposit medications on the implant surface.

The Laser Zentrum Hannover e.V. (LZH) plans on using laser sintering* to improve the surface of micro-implants, for example for use in the circulatory system (stents), or in the eye, throat, nose, or ear.

The goal of a new research project is to produce a porous structure on chosen areas of an implant surface. On the one hand, this structure can improve attachment to the surrounding tissue, and on the other hand medication can be deposited there.

This is necessary, especially for extremely small implants, since integration into the surrounding tissue is limited, due to the small surface of the implant. Apart from that, the implant surface offers very little room for deposition of medications which can have a positive effect on acceptance of the implant in the human body, or for medications which can prevent infections.

"Laser sintering can be used to modify the implant surface in a very specific manner," explains Matthias Gieseke, engineer at the LZH. "We hope to make the optimal structure for a number of applications."

First of all, the requirements on the surface of the implant have to be defined, followed by investigations on generating the layers using laser sintering, and testing the structured implant. In the course of the project, automation and standardization of the laser sintering process and new materials and implants will also be developed.

The laser sintering project is in cooperation with the Institute for Biomedical Technology at the medical faculty of the University of Rostock, as part of the project "REMEDIS". REMEDIS is supported by the German Federal Ministry of Education and Research, with the goal of using micro-implants to improve the life quality of chronically ill people. The project manager is the Jülich Forschungszentrum.

*Laser sintering builds up a workpiece layer by layer, by melting a powdered material. The individual powder particles absorb the laser energy and are fused together. Almost any three-dimensional shape can be produced using laser sintering.

Contact:
Laser Zentrum Hannover e.V.
Michael Botts
Hollerithallee 8
D-30419 Hannover
Germany
Tel.: +49 511 2788-151
Fax: +49 511 2788-100
E-Mail: m.botts@lzh.de
The Laser Zentrum Hannover e.V. (LZH) carries out research and development in the field of laser technology and is supported by the Ministry of Economic Affairs, Labour and Transport of the State of Lower Saxony (Niedersächsisches Ministerium für Wirtschaft, Arbeit und Verkehr).

Michael Botts | idw
Further information:
http://www.lzh.de

Further reports about: LZH Laser Zentrum Hannover Micro-Implants laser system sintering

More articles from Process Engineering:

nachricht Fraunhofer researchers develop measuring system for ZF factory in Saarbrücken
21.11.2017 | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

nachricht New manufacturing process for SiC power devices opens market to more competition
14.09.2017 | North Carolina State University

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>