Abstract: An improved laryngoscope and its method of use are disclosed herein. The laryngoscope includes a handle and a blade separate from the handle. The blade is engagable with the handle for selective movement between an inoperative position and an operative position. A locking mechanism is provided integrally with the laryngoscope which is selectively movable between an unlocked position, in which the blade remains movable between its inoperative and operative positions, and a locked position, in which, upon movement of the locking mechanism to the locked position while the blade is in its operative position, thereafter fixes the blade in the operative position until such time that the locking mechanism is moved to the unlocked position.

Abstract: An improved laryngoscope and its method of use are disclosed herein. The laryngoscope includes a handle and a blade wherein the blade includes a tip portion at its distal end which is positioned in a specific location relative to the rest of the blade when the blade and handle are positioned in their normal, operative downwardly directed position. In a method of using the laryngoscope as disclosed herein, the downwardly directed tip portion of the blade remains adjacent an endotracheal tube which follows a given path upon emerging at the distal end of the blade.

Abstract: A laryngoscope handle forming part of an overall laryngoscope is disclosed herein having a hollow, elongated hand gripping portion designed to contain an electrical power supply, specifically batteries, within its interior. The handle also includes a blade connecting head portion disengagably connected to one end of the hand gripping portion and a number of passageways for accommodating a light source and electrical contacts which are necessary in the operation of the overall laryngoscope. The elongated hand gripping portion itself is sealed sufficient to prevent water from reaching its interior and damaging the power supply therein. One way of forming part of this seal is a particular arrangement including a printed circuit board for sealing the entire lower end of the blade connecting head portion including its multiple passageways so as to prevent any water entering the passageways from reaching the power supply containing the interior of the hand gripping portion.

Abstract: A laryngoscope is disclosed herein which includes a handle and a separate disposable blade. The disposable blade is designed for a single proper operative use, enabling greater sterility. After the single first proper operative use, and upon disengagement from the handle, certain blade components are sufficiently damaged, whereby the blade is not able to cooperatingly engage and remain retained in the handle, for a proper second operative use.