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 New technology for ultra-smooth polymer films
28.06.2018 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP

nachricht Diamond watch components
18.06.2018 | Schweizerischer Nationalfonds SNF

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

Smallest transistor worldwide switches current with a single atom in solid electrolyte

17.08.2018 | Physics and Astronomy

Robots as Tools and Partners in Rehabilitation

17.08.2018 | Information Technology

Climate Impact Research in Hannover: Small Plants against Large Waves

17.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>