Forum für Wissenschaft, Industrie und Wirtschaft

Hauptsponsoren:     3M 


Ear implants with a memory


From small plastic manikins to noodles and prototypes for industry – today, 3D printers can print almost everything.

The challenge, however, is to print highly precise and small prints which are, on top of that, made of difficult-to-process materials. The scientists at the Laser Zentrum Hannover e.V. (LZH) are conducting research on that very topic.

This laser-additive manufactured micro-actor for cochlea implants can change its shape due to temperature changes. Foto: LZH

At the Hannover Messe 2014, they will demonstrate how they use the laser to manufacture tiny implants with a memory function or complex shapes, such as the cochlea of the human inner ear.

In the field of medical technology Laser Additive Manufacturing (LAM) opens up new ways of healing, e.g. for hearing-impaired persons. Inserting an implant into the tiny cochlea requires utmost care.

During the procedure the surgeon runs the risk of destroying intact sensory cells which would even further decrease the hearing ability of the patient.

The micrometer-small cochlea replicas that the surgeons use to practice the procedure are manufactured by the LZH’s Photonic System Technology Group using the LAM technology. The Surface Technology Group at LZH goes one step further.

In cooperation with the Hannover Medical School (MHH), they are developing implants that change their shape due to temperature changes during the surgery and shall thus make the insertion much easier.

Using printed Magnesium to reconstruct faces

LAM also allows for the manufacturing of temporary implants. These Magnesium scaffolds are slowly and gradually decomposed by the human body.

They are well suited for reconstructing defects of the facial skull, because their shape can be matched to the face of the patient. Directly after the surgery, the bioresorbable implants stabilize the tissue above. Afterwards, they make room for new bone cells.

Tiny, highly complex parts, however, not only inspire innovations in biomedical technology. There are practically no limits to their use. Polymers or metals, for example, can be used.

Even complex parts with internal openings can be manufactured rapidly and with high precision. Only a 3D drawing is required.

For more information about Laser Additive Manufacturing visit the LZH at the Hannover Messe: Lower Saxony Pavilion, hall 2, stand A08.

Weitere Informationen: - more information about LZH at the Hannover Messe

Lena Bennefeld | Laser Zentrum Hannover e.V.

Further reports about: LAM LZH Laser MHH Magnesium Surface function implants innovations procedure temperature

More articles from HANNOVER MESSE:

nachricht Measurement of components in 3D under water
01.04.2015 | Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF

nachricht Artificial hand able to respond sensitively thanks to muscles made from smart metal wires
24.03.2015 | Universität des Saarlandes

All articles from HANNOVER MESSE >>>

The most recent press releases about innovation >>>

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

Im Focus: Lange Speicherung photonischer Quantenbits für globale Teleportation

Wissenschaftler am Max-Planck-Institut für Quantenoptik erreichen mit neuer Speichertechnik für photonische Quantenbits Kohärenzzeiten, welche die weltweite...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Neue Einblicke in die Materie: Hochdruckforschung in Kombination mit NMR-Spektroskopie

Forschern der Universität Bayreuth und des Karlsruhe Institute of Technology (KIT) ist es erstmals gelungen, die magnetische Kernresonanzspektroskopie (NMR) in Experimenten anzuwenden, bei denen Materialproben unter sehr hohen Drücken – ähnlich denen im unteren Erdmantel – analysiert werden. Das in der Zeitschrift Science Advances vorgestellte Verfahren verspricht neue Erkenntnisse über Elementarteilchen, die sich unter hohen Drücken oft anders verhalten als unter Normalbedingungen. Es wird voraussichtlich technologische Innovationen fördern, aber auch neue Einblicke in das Erdinnere und die Erdgeschichte, insbesondere die Bedingungen für die Entstehung von Leben, ermöglichen.

Diamanten setzen Materie unter Hochdruck

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Alle Focus-News des Innovations-reports >>>



im innovations-report
in Kooperation mit academics

Materialinnovationen 2018 – Werkstoff- und Materialforschungskonferenz des BMBF

13.12.2017 | Veranstaltungen

Innovativer Wasserbau im 21. Jahrhundert

13.12.2017 | Veranstaltungen

Innovative Strategien zur Bekämpfung von parasitären Würmern

08.12.2017 | Veranstaltungen

Weitere VideoLinks >>>
Aktuelle Beiträge

Rest-Spannung trotz Megabeben

13.12.2017 | Geowissenschaften

Computermodell weist den Weg zu effektiven Kombinationstherapien bei Darmkrebs

13.12.2017 | Medizin Gesundheit

Winzige Weltenbummler: In Arktis und Antarktis leben die gleichen Bakterien

13.12.2017 | Geowissenschaften