The Riester laryngoscope consists of a handle containing batteries that power a light and a set of interchangeable blades that are either straight or curved. This device is designed to allow direct viewing of the larynx. Intubation laryngoscopes are used as an aid for endotracheal intubation during anesthesia or ventilation therapy. The Riester range of laryngoscopes includes fiberoptic, standard and disposable laryngoscopes with LED/Li-ion technology.