Fig. 2From: A promising tool for surgical lipotransfer: a constant pressure and quantity injection device in facial fat graftingInternal structure of the injection device (1 syringe, 2 micro DC motor, 3 lead screw, 4 shell, 5 battery, 6 injection handle) (Reprinted with the permission from Zhonghua Zheng Xing Wai Ke Za Zhi [7])Back to article page