Cited by 159Wireless Power Transfer SystemsWireless Body Area NetworksPhotodynamic Therapy Research Studies

An implantable power supply with an optically rechargeable lithium battery

Goto, K., Nakagawa, T., Nakamura, O., Kawata, S.·2001·IEEE Transactions on Biomedical Engineering

Abstract

A novel power supply for medical implants has been developed. A wireless near-infrared power transmission recharges a lithium secondary battery in the power supply. A photovoltaic cell array embedded under skin receives near-infrared light through the skin and charges the battery directly powering an implanted device. We have shown that, for a photodiode area of 2.1 cm2, 17 min of near-infrared irradiation at a 810-nm wavelength with a power density of 22 mW/cm2 can send enough energy to allow regular commercial cardiac pacemakers to run for 24 h. The temperature rise of the skin during the light irradiation was 1.4 degrees C.

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Crossref · 10.1109/10.930908

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11 of 11 references verified0 citation errors · 0 not checkable

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  • Using a photodiode area of 2.1, roughly 17 min of NIR light exposure at a power density of 22 mW/cm was sufficient to power a commercial cardiac pacemaker for 24 h.

    “For instance, using a photodiode area of 2.1 roughly 17 min of NIR light exposure at a power density of 22 mW/cm was sufficient to power a commercial cardiac pacemaker for 24 h (Goto et al., 2001).”

    From Comparative analysis of energy transfer mechanisms for neural implants (2024) · cites this paper as Goto et al., 2001

  • 810-nm wavelength NIR light could effectively charge a lithium secondary battery embedded in an implant, providing a direct power supply.

    “For instance, research at Osaka University has shown that 810-nm wavelength NIR light could effectively charge a lithium secondary battery embedded in the implant, providing a direct power supply (Goto et al., 2001).”

    From Comparative analysis of energy transfer mechanisms for neural implants (2024) · cites this paper as Goto et al., 2001

  • Some studies recorded a modest temperature rise of 1.4°C in the skin during light irradiation.

    “While some studies have recorded a modest temperature rise of 1.4°C in the skin during light irradiation (Goto et al., 2001) others found no noticeable side effects or temperature changes during a 60-min charging period for cardiac pacemakers.”

    From Comparative analysis of energy transfer mechanisms for neural implants (2024) · cites this paper as Goto et al., 2001

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Authors
Goto, K., Nakagawa, T., Nakamura, O., & Kawata, S.
Affiliations
The University of Osaka (JP)
Venue
IEEE Transactions on Biomedical Engineering
Published
2001-07
Volume
48
Issue
7
Pages
830-833
ISSN
0018-9294 (ISSN-L)
OpenAlex
W2104708213
Cited by
159
References
11
Citations by year
2026: 6 · 2025: 4 · 2024: 6 · 2023: 14 · 2022: 9 · 2021: 12 · 2020: 10 · 2019: 10 · 2018: 9 · 2017: 9 · 2016: 5 · 2015: 13 · 2014: 6 · 2013: 6 · 2012: 7
FWCI
1.25
Type
journal article
Language
en
Open access
closed
Locations
  • IEEE Transactions on Biomedical Engineering (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
  • Physical Sciences › Engineering › Biomedical Engineering › Wireless Body Area Networks
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
Keywords
implantable power sources, lithium-ion batteries, cardiac pacemaker
MeSH terms
Animals, Equipment Design, Humans, Infrared Rays, Lithium, Pacemaker, Artificial, Electric Power Supplies, Prostheses and Implants, Rats

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