Feasibility of the Infra-Red Illumination for Facilitation of Video Scope-tracheal Intubation

"The first operator experienced with video-laryngoscopy intubation will do Before inducing anesthesia, the second operator will open the randomization envelope and adhere IRRIS/IRD device to the anterior skin of the neck above the sternal notch according to the group of patients After confirming lack of discomfort during application of the IRRIS/IRD device,~After complete relaxation, Laryngoscopy will be performed by the first operator using video laryngoscope (Glidescope Verathon Medical, BC, Canada or C-Mac Storz, Germany) to insert the tracheal tube. The endotracheal tube will be armed with a malleable stylet and to be molded to a curved 'hockey stick or the same curve of the laryngoscopic blade's shape. We will divide the patient according to device into two groups:~1. Group A: control group~2. Group B: Intervention group using Infrared"