The present invention includes improved medical communication devices, such as nurse call cords, pillow speakers, and the like, that can be used in an oxygenated environment and that can withstand the sterilization and cleaning procedures commonly used in health care institutions. The frame member comprises a vertically extending back surface and an outwardly extending shape defining a multifaceted cavity therebetween. The tracking is based on finding a set of corresponding feature points across a plurality of consecutive bronchoscopic video frames, then estimating for the new pose of the bronchoscope. The optical member have a peeling strength may be decreased without decrease in adhesive strength of adhesive itself to enable easy formation of trigger for peeling. The dissolved oxygen is then communicated through openings about the circumference of the exhaust tube and out the deoxygenator. The process involves non-oxidative pyrolysis to recover fluid energy values, oxidative combustion to recover energy values as recoverable heat, and environmental sequestration of gases produced.