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.
Daniel Kluess, Hans-E. Lange, Horst Heyer, Manuela Sander, Wolfram Mittelmeier and Rainer Bader: Supplementary finite element analysis in experimental testing of total hip stems. Materials Testing, volume 60 (5): pages 489-494, April 2018. doi.org/10.3139/120.111182
Hans-E. Lange, Dennis Hohlfeld, Daniel Kluess: Piezoelectric Energy Harvesting Concept for Energy-Autonomous Instrumented Orthopaedic Implants a Numerical Evaluation; Konferenzbeitrag. 16th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering, August 2019, New York, USA.