Zhang Dong, Wang Shuyou, Song Xiaojing, Li Shunyue, Li Yinglong, Wen Mei 

(Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China)

Abstract  Objective:  Through  the  combination  of  thermal  infrared  imaging  and  laser  doppler blood flow imaging technique,LED lights and photoelectric instrument after irradiation treatment arm hole area temperature change and  microcirculation perfusion,Understanding of LED lights and  photoelectric  instrument  irradiation  effects  on  hole  zone  temperature  and  blood perfusion. Methods  :10  cases  of  healthy  subjects   ,Using  leds  illuminate  and  photoelectric instrument on the right side of the closed cavity in 30 min, Application of infrared thermal image, laser doppler blood flow imaging technique.Observation point the temperature and the change of skin microcirculation perfusion.And carry on quantitative analysis of temperature and blood flow value. Result:  (1)  LED  lights  and  photoelectric  instrument  within  the  human  body  acupoint irradiation treatment on clearance hole area blood perfusion were significantly increased.The same point  in  time,  the  LED  lights  and  photoelectric  instrument  for  exposure  groups,  respectively, compared  with  before  their  contrast,  statistically  difference(P<0.05).(2)LED  lights  and photoelectric instrument within the human body acupoint irradiation treatment on clearance hole area temperature were significantly  increased, groups of temperature increasing trend is consistent with the trend of blood perfusion(P<0.05) . Conclusion：LED lights and photoelectric instrument after irradiation treatment hole area and local skin temperature, blood perfusion volume increased significantly, the local tissue can promote blood circulation and metabolic activity. 

Keywords: LED,Photoelectric instrument, Acupoint, temperature, microcirculation