Endocardial Energy Harvesting by Electromagnetic Induction

Zurbuchen, Adrian; Häberlin, Andreas; Bereuter, Lukas David; Pfenniger, Aloïs; Bosshard, Simon; Kernen, Micha; Heinisch, Paul Philipp; Fuhrer, Jürg; Vogel, Rolf (2018). Endocardial Energy Harvesting by Electromagnetic Induction. IEEE transactions on biomedical engineering, 65(2), pp. 424-430. Institute of Electrical and Electronics Engineers IEEE 10.1109/TBME.2017.2773568

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Abstract OBJECTIVE: cardiac pacemakers require regular medical follow-ups to ensure proper functioning. However, device replacements due to battery depletion are common and account for ∼25% of all implantation procedures. Furthermore, conventional pacemakers require pacemaker leads which are prone to fractures, dislocations or isolation defects. The ensuing surgical interventions increase risks for the patients and costs that need to be avoided. METHODS: in this study, we present a method to harvest energy from endocardial heart motions. We developed a novel generator, which converts the heart's mechanical into electrical energy by electromagnetic induction. A mathematical model has been introduced to identify design parameters strongly related to the energy conversion efficiency of heart motions and fit the geometrical constraints for a miniaturized transcatheter deployable device. The implemented final design was tested on the bench and in vivo. RESULTS: the mathematical model proved an accurate method to estimate the harvested energy. For three previously recorded heart motions, the model predicted a mean output power of 14.5, 41.9, and 16.9 μW. During an animal experiment, the implanted device harvested a mean output power of 0.78 and 1.7 μW at a heart rate of 84 and 160 bpm, respectively. CONCLUSION: harvesting kinetic energy from endocardial motions seems feasible. Implanted at an energetically favorable location, such systems might become a welcome alternative to extend the lifetime of cardiac implantable electronic device. SIGNIFICANCE: the presented endocardial energy harvesting concept has the potential to turn pacemakers into battery- and leadless systems and thereby eliminate two major drawbacks of contemporary systems.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiovascular Surgery
04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Kardiologie
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Kardiologie

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Cardiovascular Engineering (CVE)

UniBE Contributor:

Zurbuchen, Adrian; Häberlin, Andreas; Bereuter, Lukas David; Pfenniger, Aloïs; Bosshard, Simon Martin; Heinisch, Paul Philipp and Fuhrer, Jürg

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0018-9294

Publisher:

Institute of Electrical and Electronics Engineers IEEE

Language:

English

Submitter:

Daniela Huber

Date Deposited:

25 Jan 2018 14:16

Last Modified:

25 Jan 2018 15:56

Publisher DOI:

10.1109/TBME.2017.2773568

PubMed ID:

29346109

BORIS DOI:

10.7892/boris.107665

URI:

https://boris.unibe.ch/id/eprint/107665

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