The article reviews the main theoretical, engineering and technological, circuit-engineering and software aspects of development of a dynamically controlled luminaire based on light emitting diodes for contrast visualisation of biological tissues during surgical procedures. The design concept of such surgical luminaire is proposed, which combines high-quality white lighting and coloured accent lighting increasing the contrast of visualisation of particular tissues and borders between them. The calculation model of the luminaire optical system allows maximising the level of illumination and uniformity of illuminance and colour of the surgical area. The software of the luminaire allows to independently modifying intensity of radiation of six coloured light emitting diodes with blue (460 nm), turquoise (505 nm), green (530 nm), green-yellow (550 nm), orange (590 nm) and red (630 nm) light colours for synthesis of coloured lighting of virtually any chromaticity. The level of general lighting by means of phosphor light emitting diodes can also be varied within a wide range. Chromaticity and level of lighting are adjusted by means of pulse-duration modulation of light emitting diode current and the light parameters of the luminaire are controlled by a remote computer via a radio channel.
This medical luminaire is primarily designed for lighting during surgical procedures and it can also be used for visual diagnostics based on the colour of analysed tissues.
1. Wright M. Osram Opto launches a 95-CRI LED for medical lighting URL: http://www.medicalexpo.com/medical-manufacturer/led-surgical-light‑4597.html (date of reference: 18.01.2021).
2. Trumpf Medical. URL: http://www.trumpf.ru/3/0.php (date of reference: 14.03.2021).
3. Surgiris. URL: https://www.surgiris.com/sites/surgiris/ files/brochures/x3-x2mt-uk-bd.pdf (date of reference: 08.04.2021).
4. Maquet. URL: https://www.maquet.com/globalassets/downloads/products/h-led/non-us_msw_bro_sl_hled_xxx_01_en_jul_14.pdf (date of reference: 5.03.2021).
5. Mindray. URL: http://www.mindrayco.ru/sites/ default/files/hyled_7_series.pdf (date of reference: 18.01.2021).
6. Masuda O., Nascimento S.M.C. Lighting spectrum to maximize colorfulness // Optics Letters. – 2012. – Vol. 37, Is. 3. – P. 407–409.
7. Srividya R., Kurian C.P. White Light Source Towards Spectrum Tunable Lighting / A review / 2014 Int. Conf. on Advances in Energy Conversion Technologies (ICAECT), pp. 203–208. URL: http://eprints.manipal.edu/142480/ (date of reference: 11.02.2021)
8. Knulst A.J., Stassen L.P.S., Grimbergen C.A., Dankelman J. Choosing Surgical Lighting in the LED Era // Surgical Innovation (SURG INNOV) originally published online Dec 22–2009, No. 16, 317 p. URL: https://www.researchgate.net/publication/40767435_Choosing_Surgical_Lighting_in_the_LED_Era (date of reference: 24.03.2021).
9. Aladov A.V., Biryuchinsky S.B., Dubina M.V., Zakgeim A.L., Mizerov M.N. Colour-Dynamically Controlled Operational Luminaire with Full-Colour Light Emitting Diode // Light & Engineering Journal, 2012, Vol. 20, # 2, pp. 5–12.
10. Mamoshin A.V., Seryogina E.S., Potapova E.V., Shepeleva A.I., Dunaev A.V., Alyanov A.L., Ivanov A.E., Aladov A.V. Optimisation of Surgical Area Lighting by Means of Dynamically Controlled Semiconductor Light Sources [Optimizatsiya osveshcheniya operatsionnogo polya s pomoshchyu dinamicheski upravlyaemykh poluprovodnikovykh istochnikov sveta] // Fundamentalnyie i prikladnyie problemy tekhniki i tekhnologii, 2018, Vol. 6 (332), pp. 119–125.
11. Mamoshin A.V., Seryogina E.S., Potapova E.V., Shepeleva A.I., Shupletsov V.V., Dunaev A.V., Aladov A.V., Chernyakov A.E. The study of the spectral characteristics of biological tissues for optimization of surgical lamp parameters // Journal of Physics: Conference Series. 2019, Vol. 1400(6), p. 066024.
12. Salomatina E., Jiang B., Novak J., Yaroslavsky A.N. Optical properties of normal and cancerous human skin in the visible and near-infrared spectral range // Journal of Biomedical Optics, 2006, Vol. 11, # 6, pp. 064026–1 – 064026–9.
13. Murai K., Kawahira H., Haneishi H. Improving colour appearance of organ in surgery by optimally designed LED illuminant // Berlin: Springer, IFMBE Proc. 2013, Vol. 39, pp. 1010–1013.
14. Kurabuchi, Y., Nakano, K., Ohnishi, T., Nakaguchi, T., Hauta-Kasari, M., Haneishi, H. Optimization of surgical illuminant spectra for organ microstructure visualization // IEEE Access. – 2019. – May. – P. 70733–70741.
15. Aladov A.V., Zakgeim A.L., Chernyakov A.E. LED Surgical Luminaire / Utility Patent No. RU188259. 2019. Bull. No. 10, 6 p.
16. Aladov A.V., Zakgeim A.L., Semyashkina Yu.V., Chernyakov A.E. Surgical Luminaire / Utility Patent No. RU188321. 2019. Bull. No. 10, 8 p.
17. Mamoshin A., Ivanov A., Seryogina E., Krasova A., Potapova E., Shupletsov V., Dunaev A., Aladov A., Chernyakov A., Panchenkov D. Optimization of Spectral Characteristics of the Controlled Colour-Dynamic Surgical Light Source for Visualization of Organs and Tissues of Laboratory Animals / EExPolytech 2019 Proc., 2019, pp. 311–314.
18. Mamoshin A., Seryogina E., Krasova A., Potapova E., Shupletsov V., Dunaev A., Chernyakov A., Aladov A. Analysis of experimental surgical lighting parameters in organs in vivo / Proc. SPIE, Saratov Fall Meeting 2019: Optical and Nano-Technologies for Biology and Medicine (9 April 2020), p. 114570.
19. Aladov A.V., Valyukhov V.P., Zakgeim A.L., Kuptsov V.D., Mamoshin A.V., Potapova E.V., Chernyakov A.E., Fotiadi A.E. Optimisation of Surgical Area Lighting to Obtain Maximum Contrast of Biological Object Visualisation [Optimizatsiya osveshcheniya operatsionnogo polya s tselyu polucheniya maksimalnogo kontrasta pri visializatsii biologicheskikh obyektov]// Scientific and Engineering Bulletin of SPbGPU. Physics and Mathematics, 2019, Vol. 12, # 4, pp. 79–88.

• Previous article
• Next article

• light emitting diode
• surgical luminaire
• spectral and chromaticity characteristics
• contrast visualisation
• biological tissues