Fig. 1: (a) Commercial eye loupes (SurgiTel brand). (b) The FLoupe™-2. (c) The neurosurgeon (Dr. Pittman, Neurosurgeon) wears FLoupe™-2 during surgery.
FLoupeTM
FLoupeTM-2 (second generation) is a low-cost wearable eye-loupe based fluorescence imaging device capable of imaging visible dyes including fluorescein and 5-ALA.
This device includes battery-drive high-intensity LEDs for excitation/illumination and a small CMOS video camera with a flippable long-pass filter for fluorescence imaging and recording. One pair of long-pass filters sitting in a flippable frame is attached to the eye loupes for easily changing from fluorescence to color vision.
(Mehrana Mohtasebi, Chong Huang, Mingjun Zhao, Siavash Mazdeyasna, Xuhui Liu, Samaneh Rabienia Haratbar, Faraneh Fathi, Jinghong Sun, Thomas Pittman, Guoqiang Yu, “A Wearable Fluorescence Imaging Device for Intraoperative Identification of Human Brain Tumors,” IEEE Journal of Translational Engineering in Health and Medicine, vol. 12, pp. 225-232, 2024, doi: 10.1109/JTEHM.2023.3338564)