Self-rechargeable cardiac pacemaker system with triboelectric nanogenerators

Hanjun Ryu, Hyun-moon Park, Moo-Kang Kim, Bosung Kim, Hyoun Seok Myoung, Tae Yun Kim, Hong-Joon Yoon, Sung Soo Kwak, Jihye Kim, Tae Ho Hwang, Eue-Keun Choi and Sang-Woo Kim ()
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Hanjun Ryu: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)
Hyun-moon Park: Research and Development Center, Energy-Mining LTD.
Moo-Kang Kim: Seoul National University Hospital
Bosung Kim: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)
Hyoun Seok Myoung: Research and Development Center, Energy-Mining LTD.
Tae Yun Kim: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)
Hong-Joon Yoon: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)
Sung Soo Kwak: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)
Jihye Kim: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)
Tae Ho Hwang: SoC Platform Research Center, Korea Electronics Technology Institute (KETI)
Eue-Keun Choi: Seoul National University Hospital
Sang-Woo Kim: School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU)

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Self-powered implantable devices have the potential to extend device operation time inside the body and reduce the necessity for high-risk repeated surgery. Without the technological innovation of in vivo energy harvesters driven by biomechanical energy, energy harvesters are insufficient and inconvenient to power titanium-packaged implantable medical devices. Here, we report on a commercial coin battery-sized high-performance inertia-driven triboelectric nanogenerator (I-TENG) based on body motion and gravity. We demonstrate that the enclosed five-stacked I-TENG converts mechanical energy into electricity at 4.9 μW/cm3 (root-mean-square output). In a preclinical test, we show that the device successfully harvests energy using real-time output voltage data monitored via Bluetooth and demonstrate the ability to charge a lithium-ion battery. Furthermore, we successfully integrate a cardiac pacemaker with the I-TENG, and confirm the ventricle pacing and sensing operation mode of the self-rechargeable cardiac pacemaker system. This proof-of-concept device may lead to the development of new self-rechargeable implantable medical devices.

Date: 2021
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DOI: 10.1038/s41467-021-24417-w

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