Review
Engineering, Electrical & Electronic
Mohammad Javad Karimi, Alexandre Schmid, Catherine Dehollain
Summary: This paper provides a systematic review and survey of the latest inductive power and data transmission methods for implantable medical devices (IMDs), covering principles, design parameters, power transfer efficiency, optimization methods, and performance comparisons.
IEEE SENSORS JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Vijayanandam Nithiyanandam, Vidhya Sampath
Summary: This article provides a philosophical analysis of recent methodologies and techniques for efficient WPT in implantable devices based on different approaches. The working principle and outcomes of each recent powering method are discussed and mapped, while highlighting the performance, efficiency, operating frequency, and stability of the systems.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Electrical & Electronic
Maryam Heidarian, Samuel J. Burgess
Summary: Power transfer efficiency (PTE) is a key performance parameter in the development of resonant inductive power transfer (IPT) systems. A new figure-of-merit (FoM), called the strong coupling factor (P-scf), is proposed to find an optimum coil geometry for maximizing PTE.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Engineering, Electrical & Electronic
Izaz Ali Shah, Muhammad Zada, Syed Ahson Ali Shah, Abdul Basir, Hyoungsuk Yoo
Summary: This article presents a highly efficient near-field wireless power transfer system for miniaturized implantable medical devices. The system achieves simultaneous wireless power reception and data telemetry using a flexible metasurface slab and an in-body receiver. Experimental results demonstrate a significant improvement in power transmission efficiency in various scenarios.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Engineering, Biomedical
Nima Soltani, Maged ElAnsary, Jianxiong Xu, Jose Sales Filho, Roman Genov
Summary: A tutorial and comprehensive guide for the design of planar spiral inductors with maximum energy delivery in biomedical implants is presented in this paper. By comparing the proposed methodology with the conventional approach, it is demonstrated that the presented technique increases the maximum deliverable power significantly while maintaining moderate link efficiencies.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Abdul Basir, Izaz Ali Shah, Hyoungsuk Yoo
Summary: This study introduces a sphere-shaped (Rxs) coil to improve the power transfer efficiency of wireless power transfer systems for implantable devices, along with a high-efficiency voltage doubler as a rectifier. The Rxs coil shows improved and stabilized PTE under different misalignment conditions.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Biomedical
Jiajie Chen, Jin Xu
Summary: This study aims to improve the transmission efficiency of implantable cardiac pacemakers by designing a new coil structure and finding the optimal radius ratio between transmitting and receiving coils. Simulations using Mathcad and Maxwell were conducted to analyze the influence of radius ratio on transmission efficiency and mutual inductance. Experimental verification showed that the new coil structure proposed in this paper effectively enhances the transmission efficiency of the cardiac pacemaker.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2021)
Review
Materials Science, Multidisciplinary
Jungang Zhang, Rupam Das, Jinwei Zhao, Nosrat Mirzai, John Mercer, Hadi Heidari
Summary: This article reviews comprehensive power solutions for cardiovascular implantable devices (cIMDs), with a focus on the prospects of wireless power transfer technology. By eliminating the need for fixed capacity batteries, wireless power transfer technology helps to reduce the risks and treatment costs associated with high-risk surgeries, and provides better biocompatibility. Additionally, the article covers related wireless data transmission and modulation-demodulation techniques.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Electrical & Electronic
Ali Asghar Razavi Haeri, Aminghasem Safarian
Summary: This paper presents a cycle by cycle FSK demodulator capable of demodulating a FSK signal with 1% frequency modulation index in a single cycle. It breaks the tradeoff between power transfer efficiency and data rate by establishing a high-rate data transmission link through a high-Q inductive coupling link.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2022)
Article
Engineering, Electrical & Electronic
Haoyu Zhuang, Wei Wang, Guozheng Yan
Summary: This article proposes a wireless power transfer (WPT) system for capsule robots (CR) that is capable of generating a 3-D magnetic field at any position. The system uses one pair of power transmitting coils (PTCs) and one power receiving coil (PRC) and does not require current amplitude or phase control methods. The geometric parameters of the PTC structure are determined through magnetic calculation and finite-element simulation, and the capability of omnidirectional transfer is verified through theoretical analysis and comparison with traditional topology. A control strategy based on received voltage tracking is illustrated, and the effectiveness of the proposed system and control method is confirmed through experimental results, with a maximum power delivered to the load of 2523 mW and a power transfer efficiency of 8.4%.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Semin Jo, Wonwoo Lee, Hojin Lee
Summary: Wireless power transfer (WPT) systems enable long-term operation and miniaturization of implantable devices by eliminating the need for battery replacement and wired power supplies. However, the practical application of wireless power transfer systems for implantable devices is challenging due to constraints and requirements of the human body, such as tissue reflection loss, small device size, and electromagnetic wave attenuation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Biophysics
H. Dinis, P. M. Mendes
Summary: Microfabrication techniques, sensor and actuator miniaturization, optimization of microelectronic circuits, and wireless communication capabilities have enabled the development of implants for previously impossible applications. However, the scaling down of implants raises challenges in powering them, leading to emerging energy sources that do not rely on batteries. This paper reviews recent implantable bioelectronic devices that employ alternative powering methods and discusses their suitability for future devices.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Juan M. Romero-Arguello, Anh-Vu Pham, Christopher S. Gardner, Brad T. Funsten
Summary: This paper presents the design and development of miniature coils for wireless power and data transfer through metal, demonstrating successful power and data transfer through aluminum using harvested power.
Article
Engineering, Biomedical
Jangyong Ahn, Seongho Woo, Haerim Kim, Kyunghwan Song, Sungryul Huh, Seon-Eui Hong, Jedok Kim, Hyung-Do Choi, Seungyoung Ahn
Summary: This paper proposes an out-of-phase coupled wireless power transfer system for implantable medical devices to reduce human exposure to electromagnetic fields. Through simulation and measurements, it is verified that the proposed system can effectively reduce the impact of electromagnetic fields on the human body.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Alexis Narvaez, Claudio Carretero, Ignacio Lope, Jesus Acero
Summary: The article presents the optimization procedure of an inductive power transmission (IPT) system using large size spiral printed circuit board (PCB) coils for high-power transfer. The use of PCBs for coil assembly provides advantages in the manufacturing process and offers a low-profile device suitable for space-constrained applications. The study explores the application of Litz-structure braiding techniques to achieve high energy efficiency in the PCB-based IPT system coils.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Engineering, Electrical & Electronic
Ulkuhan Guler, Yaoyao Jia, Maysam Ghovanloo
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2020)
Correction
Engineering, Biomedical
Yaoyao Jia, Byunghun Lee, Fanpeng Kong, Zhaoping Zeng, Mark Connolly, Babak Mahmoudi, Maysam Ghovanloo
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2020)
Article
Engineering, Biomedical
S. Abdollah Mirbozorgi, Yaoyao Jia, Pengcheng Zhang, Maysam Ghovanloo
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
(2020)
Article
Chemistry, Analytical
Yaoyao Jia, Yan Gong, Arthur Weber, Wen Li, Maysam Ghovanloo
Article
Engineering, Electrical & Electronic
Ahmad Rezvanitabar, Gwangrok Jung, Yusuf Samet Yaras, F. Levent Degertekin, Maysam Ghovanloo
IEEE SENSORS JOURNAL
(2020)
Editorial Material
Engineering, Biomedical
Alison Burdett, Pedram Mohseni, Maysam Ghovanloo, Roman Genov
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2020)
Article
Engineering, Biomedical
Yaoyao Jia, Ulkuhan Guler, Yen-Pang Lai, Yan Gong, Arthur Weber, Wen Li, Maysam Ghovanloo
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2020)
Article
Engineering, Electrical & Electronic
Yuhua Cheng, Chunwu Liu, Minghao Wang, Gaofeng Wang, Maysam Ghovanloo, Wenjun Li
Summary: To accurately capture the activity of large neural populations, researchers have developed a three-layer power transmitting array system capable of generating an omnidirectional and homogeneous magnetic field within the brain, thus improving wireless power transfer efficiency.
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
(2021)
Article
Engineering, Electrical & Electronic
Pyungwoo Yeon, Sreejith Kochupurackal Rajan, Jessica Falcone, Joe L. Gonzalez, Gary S. May, Ravi V. Bellamkonda, Oliver Brand, Muhannad S. Bakir, Maysam Ghovanloo
Summary: This study presents a micromachining process for small neural probes with a robust design against mechanical and material failures. The probes are made using a silicon die as a substrate supporting components and wound coils, and then hermetically sealed for physical protection. The inductance and Q-factor of the wound coils are studied in relation to power transmission efficiency, and the probe prototypes are estimated for lifetime under accelerated conditions.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Yuhua Cheng, Wenyu Kang, Gaofeng Wang, Maysam Ghovanloo, Wenjun Li
Summary: The study proposes a method to optimize the efficiency of wireless power transmission systems by varying the trace width and turn-to-turn spacing of the coils and establishing an accurate analytical model. Through validation, it is found that this method can effectively improve system efficiency.
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
(2021)
Article
Environmental Sciences
Zhenxuan Zhang, Boris Prilutsky, Andrew J. Butler, Minoru Shinohara, Maysam Ghovanloo
Summary: The study evaluated a tongue-operated exoskeleton system for upper limb rehabilitation, demonstrating successful outcomes in aiding stroke survivors in restoring arm function.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Editorial Material
Engineering, Biomedical
Alison Burdett, Pedram Mohseni, Maysam Ghovanloo, Roman Genov
Summary: The papers in this special section were presented at the 2021 IEEE International Solid-State Circuits Conference.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2021)
Article
Engineering, Biomedical
Ahmad Rezvanitabar, M. Sait Kilinc, Coskun Tekes, Evren F. Arkan, Maysam Ghovanloo, F. Levent Degertekin
Summary: This paper presents an active impedance matching scheme to optimize electrical power transfer and acoustic reflectivity in ultrasound transducers. Leveraging negative capacitance-based impedance matching improves bandwidth and electrical power transfer, while reducing acoustic reflection and crosstalk.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2022)
Article
Materials Science, Multidisciplinary
Pyungwoo Yeon, Min-gu Kim, Pingyu Wang, Choongsoon Kim, Oliver Brand, Maysam Ghovanloo
Summary: This paper describes an automated and wireless accelerated heat soak testing system for assessing hermetic failure mechanisms in small mm-sized inductively powered IMDs. The system utilizes a high-throughput readout coil array printed circuit board to test the hermeticity of multiple wireless IMDs simultaneously in harsh environments. An accelerated heat soak test is performed to evaluate electronic durability and estimate the lifetime of the devices.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Proceedings Paper
Computer Science, Information Systems
Ahmad Rezvanitabar, M. Sait Kilinc, Coskun Tekes, Evren F. Arkan, Maysam Ghovanloo, F. Levent Degertekin
Summary: This paper introduces an ultrasound imaging front-end system-on-a-chip that reduces the acoustic reflectivity of the ultrasound transducer array in a broad bandwidth. The system integrates an ultrasound transceiver and an active capacitive impedance cancellation scheme for the first time, designed for low frame rate applications. This system-on-a-chip is used with a CMUT array in the 2-4 MHz range and has successfully demonstrated reduced acoustic reflectivity and imaging capabilities through experiments.
2021 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (IEEE BIOCAS 2021)
(2021)