Clinical examination of a patient is very likely to reveal the factors making tracheal intubation difficult and thus increasing
Many laryngoscopes have been designed since WilliamMacEwan in 1878 passed a tube from the mouth into the Irachea using his fmgees as a guide. J The purpose has been to provide appropriate and rapid access to the trachea and minimize damage to teeth, tempero mandibular joints, and other vulnerable structures.A laryngoscope consists of a handle joined by a folding fitting to a blade that incorporates arrangements for lighting. The blade comprises a fitting, spatula, beak and flange. The flange projects from the edge of the spatula and serves to deflect interfering tissues. In some models the flange is uniformly curved, in others it lies at right-angles to the spatula at first and then changes direction. This initial vertical piece and even the cross-