Fiber-reinforced materials, which can be formed by the application of heat and thereby adapted to meet individual requirements, have enormous potential for medical engineering.
The use of thermoplastic materials for such composites has opened up new options for manufacturing parts such as adaptable micro-implants for neurosurgery or complex parts such as prostheses.
Puncture needle for minimally invasive interventions made from carbon-fiber-reinforced plastics
Source: Fraunhofer IPT
The Fraunhofer-Institute for Production Technology IPT will be presenting the results of their research work relating to all aspects of the manufacture of medical products from fiber-reinforced materials at the Compamed Medical Technology Trade Fair in Düsseldorf 12 - 14 November 2014 in Hall 8a, Booth K38.
Advanced fiber-reinforced materials are state-of-the-art in a number of applications in the aerospace sector as well as in the automotive industry and in the generation of renewable energy. They are up to 70 % lighter than metal or ceramic – but at the same time, they can withstand high levels of mechanical stress and are resistant to chemical influences. At Compamed, researchers from the Fraunhofer IPT in Aachen will be presenting the areas of application in medical engineering in which fiber-reinforced plastics look set to figure in the future.
Strong and pliable: Instruments for minimally invasive MRI procedures
Instruments for minimally invasive surgery are already being mass-produced from fiber-reinforced plastics using the micro-pullwinding process developed by the Fraunhofer IPT. This technique is used by the Fraunhofer IPT to produce three-layered micro-profiles with diameters well below 1 mm, which can be used in guide wires, cannulas and catheters.
The required bending and torsional characteristics of the instruments can be adjusted continuously to match the area of application in hand using precision-positioned reinforcement fibers with no interruption to the mass production process. The suitability of these instruments for use in magnetic resonance imaging (MRI) is an additional advantage: in contrast to metallic components, there is no occurrence of any spurious artefacts when these instruments are used.
The materials which can be transformed time and time again: Thermoplastic fiber-reinforced plastics
The researchers in Aachen are also developing methods and production systems geared to processing thermoplastic fiber composites for the manufacture of individually customizable medical products such as prostheses, implants or even wheelchairs. The resultant components can be reformed following the initial hardening process, thus ensuring that, unlike similar parts made of thermosetting materials, they can be adapted to suit individual requirements. Many of the thermoplastic matrix materials have previously been licensed for use in medical engineering and are therefore no longer subject to protracted licensing procedures.
Diverse range of manufacturing processes for customized mass production
The Fraunhofer IPT is also currently exploring the application of laser radiation in welding processes to bond multi-part components with complex structures securely together thereby completely eliminating the need to use noxious adhesives. The aim here is to enable processes already well-established in plastic-welding environments to be transferred to the manufacture of medical products.
The focus of laser-assisted tape-laying and winding technique developed at the Fraunhofer IPT is used to manufacture load-bearing structures from fiber-reinforced lightweight engineering materials in a process which is both resource and energy efficient.
The engineers from Aachen work closely with medical facilities and commercial medical technology providers in the drive to develop new manufacturing processes suitable for the mass production of customizable products as well as for the design and construction of fiber-reinforced components for medical engineering applications.
Dipl.-Ing. Alexander Brack
Fraunhofer Institute for Production Technology IPT
Phone +49 241 8904-355
Susanne Krause | Fraunhofer-Institut
New Process Technology Unlocks Boost in Laser Productivity
18.05.2017 | Fraunhofer-Institut für Lasertechnik ILT
OLED microdisplays as high-precision optical fingerprint sensors
09.05.2017 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy