Wireless power transfer for implantable biomedical devices using adjustable magnetic resonance

Description

Rodents are essential models for research on fundamental neurological processing and for testing of therapeutic manipulations including drug efficacy studies. Telemetry acquisition from rodents is important in biomedical research and requires a long-term powering method. A wireless power transfer (WPT) scheme is desirable to power the telemetric devices for rodents. This dissertation investigates a WPT system to deliver power from a stationary source (primary coil) to a moving telemetric device (secondary coil) via magnetic resonant coupling. The continuously changing orientation of the rodent leads to coupling loss/problems between the primary and secondary coils, presenting a major challenge. We designed a novel secondary circuit employing ferrite rods placed at specific locations and orientations within the coil. The simulation and experimental results show a significant increase of power transfer using our ferrite arrangement, with improved coupling at most orientations. The use of a medium-ferrite-angled (4MFA) configuration further improved power transfer. Initially, we designed a piezoelectric-based device to harvest the kinetic energy available from the natural movement of the rodent; however, the harvested power was insufficient to power the telemetric devices for the rodents. After designing our 4MFA device, we designed a novel wireless measurement system (WMS) to collect real-time performance data from the secondary circuit while testing WPT systems. This prevents the measurement errors associated with voltage/current probes or coaxial cables placed directly into the primary magnetic field. The maximum total efficiency of our novel WPT is 14.1% when the orientation of the 4MFA is parallel to the primary electromagnetic field, and a current of 2.0 A (peak-to-peak) is applied to the primary coil. We design a novel controllable WPT system to facilitate the use of multiple secondary circuits (telemetric devices) to operate within a single primary coil. Each telemetric device can tune or detune its resonant frequency independently of the others using its internal control algorithm. / Graduate / 2018-04-26

Links & Downloads

1. http://hdl.handle.net/1828/7262
2. Basem M. Badr, Art Makosinski, Kerry R. Delaney, and Nikolai Dechev, “Controlling Wireless Power Transfer Levels by Controlled Tuning and Detuning of Secondary Tank Resonance,” U.S. provisional application No. 62/327,352, filed on April 25, 2016.
3. Basem M. Badr, Robert Somogyi-Csizmazia, Kerry R. Delaney, and Nikolai Dechev, “Wireless Power Transfer for Devices with Variable Orientation,” US Patent Application, no. 14/978,961, filed on December 22, 2015.
4. Basem M. Badr and Wahied G. Ali, Fuzzy Control for Nanopositioning Piezoelectric Actuators, VDM Verlag Press, Germany, April 2011.
5. Basem M. Badr, “Fuzzy Control for Nanopositioning Piezoelectric Actuators”, Master Thesis, King Saud University, Riyadh, Saudi Arabia, April 2011.
6. Basem M. Badr, R. Somogyi-Csizmazia, P. Leslie, K. R. Delaney, and N. Dechev, “Design of a Wireless Measurement System for Use in Wireless Power Transfer Applications for Implants,” Journal of Wireless Power Transfer, 2016 (accepted).
7. Basem M. Badr, K. R. Delaney and N. Dechev, “Design of a Low Frequency Piezoelectric Energy Harvester for Rodent Telemetry,” Journal of Ferroelectrics, vol. 481, no. 1, Sep. 2015.
8. Basem M. Badr, Robert Somogyi-Gsizmazia, N. Dechev and K. R. Delaney, “Wireless Power Transfer for Telemetric Devices with Variable Orientation, for Small Rodent Behavior Monitoring,” IEEE Sensors Journal, vol. 15, no. 4, Oct. 2014.
9. Basem M. Badr and Wahied G. ALI, “Applications of Piezoelectric Materials” Advanced Materials Research, vol. 189-193, Switzerland, 2011.
10. Basem M. Badr and Wahied. G. Ali, “Nanopositioning Fuzzy Control for Piezoelectric Actuators,” International Journal of Engineering &Technology (IJET), vol. 10, no. 1, January, 2010.
11. Basem M. Badr, Robert Somogyi-Csizmazia, Kerry R. Delaney, and Nikolai Dechev, “Maximizing Wireless Power Transfer Using Ferrite Rods within Telemetric Devices for Rodents,” COMSOL Conference, Boston, USA, Oct. 7-9, 2015.
12. Basem M. Badr, Kerry R. Delaney, and Nikolai Dechev, “Design Piezoelectric Energy Harvesting Using COMSOL for Mice Telemetry Device,” COMSOL Conference, Boston, USA, Oct. 7-9, 2015.
13. Basem M. Badr, Robert Somogyi-Gsizmazia, N. Dechev and K. R. Delaney, “Power Transfer via Magnetic Resonant Coupling for Implantable Mice Telemetry Devices,” IEEE Wireless Power Transfer Conference (WPTC), Jeju, South Korea, May 8-9, 2014.
14. Wahied G. Ali and Basem M. Badr “Embedded Fuzzy Control Using FPGA for a Nanopositioner,” National Instruments Arabia – VI MUSABAKA 2011, Lebanon, May 2011.
15. Basem M. Badr and Wahied G. Ali, “Identification and Control for a Single-Axis PZT Nanopositioner Stage,” International Conference on Modeling, Simulation and Applied Optimization (ICMSAO-2011), Kuala Lumpur, Malaysia, April 19-21, 2011.
16. Basem M. Badr and Wahied G. Ali, “Applications of Piezoelectric Materials,” 2nd International Conference on Manufacturing Science and Engineering (ICMSE 2011), Guilin, China, April 9-11, 2011.
17. Basem M. Badr and Wahied G. Ali, “Closed Loop Insulin Delivery System,” 5th Cairo International Conference on Biomedical Engineering (CIBEC 2010), Cairo, Egypt, Dec. 16-18, 2010.
18. Basem M. Badr, Ali M. Eltamaly, and A. I. Alolah, “Fuzzy Controller for Three Phases Induction Motor Drives,” IEEE VPPC 2010, Lille, France, Sep, 1-3, 2010.
19. Basem M. Badr, “Intelligent Control Design for Piezoelectric Nanoposition Actuator,” KSURC, Riyadh, KSA, Nov. 22-23, 2009.

Tags

Wireless Power Transfer

Biomedical Applications

Telemetric Devices

Implantable Devices

Magnetic Resonance

Energy Harvesting

Piezoelectric

Additional Fields

Identifer	oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/7262
Date	03 May 2016
Creators	Badr, Basem M.
Contributors	Dechev, Nikolai, Delaney, Kerry R.
Source Sets	University of Victoria
Language	English, English
Detected Language	English
Type	Thesis
Rights	Available to the World Wide Web