Final answer:
The 15-French flexible stylet with a 40 degree bent distal tip used for difficult glottic visualization is known as the Eschmann stylet, an essential tool in airway management in the medical field.
Step-by-step explanation:
The name of the 15-French flexible stylet that is 60 cm in length with a 40 degree bent distal tip used when the glottic opening is difficult to visualize is the Eschmann stylet. This medical device is particularly useful in situations where there is a challenging airway due to difficulty in visualizing the glottic opening. Clinicians opt for this device as it enhances the ease and safety of tracheal intubation by guiding the endotracheal tube. During airway management, maintaining a clear and open airway is critical, and the Eschmann stylet serves as a vital tool.
Endoscopes are similar devices in that they also possess the ability to explore the body through orifices or incisions, providing illumination of internal parts and transmitting images back to a physician. The trachea, another important organ in the respiratory tract, is integral during intubation and is supported by rings of cartilage to prevent collapse, allowing for safe passage of devices like the Eschmann stylet.