Which blade is characterized by a curved design for intubation?

The MacIntosh blade is indeed characterized by its curved design, which makes it particularly effective for intubation. This curvature allows the blade to follow the natural anatomy of the airway, enabling the clinician to visualize the vocal cords more easily. The blade is designed to be inserted into the mouth and lifted to expose the airway without directly contacting the epiglottis, making it a favored choice in many intubation scenarios.

The other blades mentioned have distinct characteristics that set them apart. The Miller blade is straight and designed to lift the epiglottis directly, which may not provide the same ease of visualization in some patients. The cricothyrotomy blade is specifically designed for performing a surgical airway, not for traditional intubation. The video laryngoscope blade, while it may also assist with intubation, features additional technology that allows for a visual display, differentiating it from the classic curved design of the MacIntosh.