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Proceedings Paper

Surgical retractor with RGB-WHITE LEDs
Author(s): Jun-ichi Shimada; Daishiro Kato; Kunihiko Terauchi; Kazuhiro Itoh; Masashi Yanada; Masanori Shimomura; Hiroaki Tsuneduka; Yoichi Kawakami
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Paper Abstract

Sufficient lighting is sometimes required when surgeons watch the mediastinum through the 7x7cm thoracic window in video-assisted thoracoscopic (VATS) lobectomy. It is thus important to develop the "ultimately localized solid-statelighting" because the distance between the window and the surface of the lung is as short as 4-5 cm. Our new idea was to place the module composed of red, green and blue light emitting diodes (RGB LEDs) at the tip of the retractor. Compared to a conventional endoscopic lighting consisting of halogen lamp, this method has lead to the bright and shadowless illumination within the entire thoracic cavity since the white RGB LEDs are emitted unidirectionally from the cylinder-shaped camera component, moving the shadows from the surgical instruments to the side of the incision. It also should be noted that we found an effective principle for controlling the color rendering of each biomaterial through the synthesis of LED lighting spectra, by which the visual performance of surgeons can be coordinated. Therefore, we believe that "medical RGB LEDs" will contribute to the safe operation, and will be developed to a standard lighting system in clinical settings with bright surgical fields in the near future.

Paper Details

Date Published: 13 February 2008
PDF: 9 pages
Proc. SPIE 6910, Light-Emitting Diodes: Research, Manufacturing, and Applications XII, 69100T (13 February 2008); doi: 10.1117/12.761979
Show Author Affiliations
Jun-ichi Shimada, Kyoto Prefectural Univ. of Medicine (Japan)
Daishiro Kato, Kyoto Prefectural Univ. of Medicine (Japan)
Kunihiko Terauchi, Kyoto Prefectural Univ. of Medicine (Japan)
Kazuhiro Itoh, Kyoto Prefectural Univ. of Medicine (Japan)
Masashi Yanada, Kyoto Prefectural Univ. of Medicine (Japan)
Masanori Shimomura, Kyoto Prefectural Univ. of Medicine (Japan)
Hiroaki Tsuneduka, Kyoto Prefectural Univ. of Medicine (Japan)
Yoichi Kawakami, Kyoto Univ. (Japan)


Published in SPIE Proceedings Vol. 6910:
Light-Emitting Diodes: Research, Manufacturing, and Applications XII
Klaus P. Streubel; Heonsu Jeon, Editor(s)

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