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Laser Light in Operation for Medical Technology

The Fraunhofer Institute for Laser Technology ILT is presenting a laser-based process to manufacture tailor-made implants at COMPAMED, the international trade fair for high tech solutions for medical technology.

In addition, the experts will be showing the professional audience processes to laser weld plastics for medical components without leaving welding seams as well as to laser polish metal.

A biodegradable skull implant made out of PLA/â-TCP by means of SLM in cooperation with the KLS Martin group and the Dental Materials and Biomaterials Research (ZWBF) at the University Hospital Aachen. Fraunhofer Institute for Laser Technology ILT, Aachen

A laser-welded, transparent microfluidic component made of plastic. Fraunhofer Institute for Laser Technology ILT, Aachen

At the IVAM joint stand H 19.1 in Hall 8a at this year’s Compamed (in Dusseldorf, Nov. 17 to 19, 2010), the Fraunhofer ILT is presenting tailor-made biodegradable implants. They were produced using Selective Laser Melting (SLM), an additive laser manufacturing process. Thanks to their interconnective pore system, these implants made of β-tricalcium phosphate enhance stromal and vascular cells’ ingrowth ability. In addition, porous implants made of a titanium alloy, manufactured using SLM, will be shown.

Another area where lasers can be used in medical technology is the polishing of metal. In this case, the laser beam melts the material surface to a depth of about 5 microns. The surface tension ensures that the fluid metal flows evenly and dries smoothed. This process developed by Fraunhofer ILT is interesting for all medical-technical components with metallic surfaces that need to have an extremely low roughness. Manufacturers can see examples of such components at the IVAM stand.

For medical-technical products made out of plastics the Fraunhofer ILT will be presenting an efficient welding process. The TransTWIST process (Transmission Welding by an Incremental Scanning Technique) allows two transparent joining partners to be connected together in an overlap by means of laser radiation without the need for additional absorbers. In contrast to conventional laser welding, expensive pretreatment steps can be omitted. The end user thus saves time and money. Thanks to the laser welding machine TransTWIST, extremely high-quality welding seams can be made, which fulfill all established requirements upon the end result as to invisible welding seams and expansion in the heat affected zone. A main area of application is in medical technology, especially microfluidics.

Contact Partners at the Fraunhofer ILT
Our experts would be glad to answer any questions you may have:
Dipl.-Ing. Christian Nüsser
Telephone: +49 241 8906-669
Dipl.-Ing Andrei Lucian Boglea
Telephone +49 241 8906-217
Dr. Arnold Gillner
Competence Area Manager Ablating and Joining
Telephone +49 241 8906-148
Fraunhofer Institute for Laser Technology ILT
Steinbachstraße 15
52074 Aachen
Tel. +49 241 8906-0
Fax. +49 241 8906-121

Axel Bauer | Fraunhofer-Institut
Further information:

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