Wireless Magneotstrictive Sensing for Biomedical and Microrobotic Applications
Magnetoelastic sensors can wirelessly measure physical quantities such as temperature, stress and pressure thereby representing a promising method of in vivo sensing. Using this technology we are developing magnetoelastic systems for biomedical and microrobotic applications. Orthopaedic surgical implants are used to either fix a bone fracture or to replace a segment of the skeleton. Bone loss, improper healing and new bone breakage are complications that sometimes arise with bone implants. In order to avoid this, we are developing a wireless system based on the phenomenon of Joule magnetostriction that can measure stress applied to the surgical implant and, consequently, provide feedback on the bone healing process. We are also investigating size reductions in magnetoelastic sensors as a means of remotely sensing physical changes in blood flow.
Group Members
- Ninja Oess, noess@ethz.ch
- Prof. Brad Nelson, bnelson@ethz.ch
