Transcutaneous optical power converter for implantable devices

Toshiyo Tamura; A. K. M. Shamsuddin; Atsushi Kawarada; Tatsuo Togawa; P. Ake Oberg

doi:10.1117/12.167291

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1 February 1994 Transcutaneous optical power converter for implantable devices

Toshiyo Tamura, A. K. M. Shamsuddin, Atsushi Kawarada, Tatsuo Togawa, P. Ake Oberg

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Proceedings Volume 2084, Biomedical Optoelectronic Devices and Systems; (1994) https://doi.org/10.1117/12.167291
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

An optical transcutaneous power converter has been developed for the power supply of implanted devices. It consists of a light source, optical fiber system and a photo detector. The light source is either a halogen lamp or continuous high-power laser diode which illuminated skin surface. The light penetrates through the skin to the solar cells. The preliminary experiments with a slice of tissue in between the light source and the solar cells showed that the power transfer efficiency was 40% in comparison to direct illumination of the solar cells. The maximum electric power obtained with a slice of tissue simulating the skin was about 8 mW at a laser diode run at a power of 100 mW. The electric power transferred is enough to supply low power consuming CMOS circuits.

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Toshiyo Tamura, A. K. M. Shamsuddin, Atsushi Kawarada, Tatsuo Togawa, and P. Ake Oberg "Transcutaneous optical power converter for implantable devices", Proc. SPIE 2084, Biomedical Optoelectronic Devices and Systems, (1 February 1994); https://doi.org/10.1117/12.167291

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