Final answer:
The described device with an S-shaped curvature and a steerable tip is known as the Sensascope, utilized for intubation and medical examinations.
Step-by-step explanation:
The device described in the question is a new hybrid rigid optical stylet that incorporates video chip technology, features an S-shaped curvature and a steerable tip that is 3 cm in length. This description matches the Sensascope, which is designed to assist with intubation and other medical procedures where direct visualization of internal body structures is necessary. Endoscopes, like the Sensascope, are crucial in modern medicine for both diagnostics and surgical interventions, transmitting light and images back to the doctor for precise maneuvering during procedures.