B02 - Transformation of mechanical energy as internal energy source for electrically active implants
Summary of the work programme
The two main research questions addressed in B02 are how to use mechanical energy from load-bearing implants for conversion into electrical energy; and how to integrate electronic components into such implants without compromising the mechanical safety. For this purpose, finite element analyses are carried out on representative implants using mathematical optimisation algorithms. Functional models are then manufactured and the mechanical fatigue as well as the function of the energy harvesters is tested. In the long term, the energy harvesters will serve to enable electrostimulation therapies as well as measurement functions in implants without external power supply.
Kluess, Daniel; Lange, Hans-E.; Heyer, Horst; Sander, Manuela; Mittelmeier, Wolfram; Bader, Rainer (2018): Supplementary finite element analysis in experimental testing of total hip stems. In: Materials Testing 60 (5), S. 489–494. DOI: 10.3139/120.111182.
Lange, Hans-E.; Hohlfeld, Dennis; Kluess, Daniel (2019): Piezoelectric Energy Harvesting Concept for Energy-Autonomous Instrumented Orthopaedic Implants a Numerical Evaluation. 16th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering. New York, United States of America, August 2019.
Lange, Hans E.; Kluess, Daniel (2019): Numerische Untersuchung eines piezoelektrischen Energiewandlungssystems für eine Energieautonome totale Hüftendoprothese. Tagung des Deutschen Verbandes für Materialforschung und -prüfung e.V., Arbeitskreises Zuverlässigkeit von Implantaten und Biostrukturen. Rostock, Germany, November 2019.
Lange, Hans-E.; Hohlfeld, Dennis; Kluess, Daniel (2019): Piezoelectric energy harvesting concept for an energy autonomous instrumented orthopaedic implant - a numerical evaluation. 16th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering and the 4th Conference on Imaging and Visualization. New York, United States of America.
Lange, Hans-E.; Kluess, Daniel (2019): Mechanical Study on Piezoelectric Energy Harvesting Concepts for an Energy-Autonomous Total Hip Replacement. 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). Berlin, Germany.