Electromagnetic Analysis, Characterization and Discussion of Inductive Transmission Parameters for Titanium Based Housing Materials in Active Medical Implantable Devices
- The growing demand for active medical implantable devices requires data and or power links between the implant and the outside world. Every implant has to be encapsulated from the body by a specific housing and one of the most common materials used is titanium or titanium alloy. Titanium thas the necessary properties in terms of mechanical and chemical stability and biocompatibility. However, itsThe growing demand for active medical implantable devices requires data and or power links between the implant and the outside world. Every implant has to be encapsulated from the body by a specific housing and one of the most common materials used is titanium or titanium alloy. Titanium thas the necessary properties in terms of mechanical and chemical stability and biocompatibility. However, its electrical conductivity presents a challenge for the electromagnetic transmission of data and power. The proposed paper presents a fast and practical method to determine the necessary transmission parameters for titanium encapsulated implants. Therefore, the basic transformer-transmission-model is used with measured or calculated key values for the inductances. Those are then expanded with correction factors to determine the behavior with the encapsulation. The correction factors are extracted from finite element method simulations. These also enable the analysis of the magnetic field distribution inside of the housing. The simulated transmission properties are very close to the measured values. Additionally, based on lumped elements and magnetic field distribution, the influential parameters are discussed in the paper. The parameter discussion describes how to enhance the transmitted power, data-rate or distance, or to reduce the size of the necessary coils. Finally, an example application demonstrates the usage of the methods.…
Document Type: | Article (reviewed) |
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Zitierlink: | https://opus.hs-offenburg.de/7165 | Bibliografische Angaben |
Title (English): | Electromagnetic Analysis, Characterization and Discussion of Inductive Transmission Parameters for Titanium Based Housing Materials in Active Medical Implantable Devices |
Author: | Waldemar GrünwaldORCiDGND, Mayukh BhattacharyyaORCiDGND, Dirk JansenStaff MemberGND, Leonhard Michael ReindlORCiD |
Year of Publication: | 2018 |
Place of publication: | Basel |
Publisher: | MDPI |
First Page: | 1 |
Last Page: | 18 |
Article Number: | 2089 |
Parent Title (English): | Materials |
Volume: | 11 |
Issue: | 11 |
ISSN: | 1996-1944 |
DOI: | https://doi.org/10.3390/ma11112089 |
URN: | https://urn:nbn:de:bsz:ofb1-opus4-71655 |
Language: | English | Inhaltliche Informationen |
Institutes: | Forschung / CRT - Campus Research & Transfer |
Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) | |
Tag: | FEM model; active implantable medical devices; hermetic sealing; inductive transmission; longevity; low frequency; metallic housing; titanium | Formale Angaben |
Open Access: | Open Access |
Gold | |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |