Medical laryngoscope

Medical laryngoscope

• 3.
   Laryngoscope handlescomes with an assortment of Miller blades and Macintosh blades  (Adult, Paediatric, Infant and Neonatal)  The basic style of blades available is straight and curved.  The Macintosh blade is positioned in the vallecula, anterior to the epiglottis, lifting it out of the visual pathway, while the Miller blade is positioned posterior to the epiglottis, trapping it while exposing the glottis and vocal folds. Incorrect usage can cause trauma to the front incisors; the correct technique is to displace the chin upwards and forward at the same time, not to use the blade as a lever with the teeth serving as the fulcrum.  The Miller, Wisconsin, Wis-Hipple, and Robert Shaw blades are commonly used for infants. It is easier to visualize the glottis using these blades than the Macintosh blade in infants, due to the larger size of the epiglottis relative to that of the glottis.
• 4.
   Helps inintubation during the administration of general anaesthesia or for mechanical ventilation.  Detects causes of voice problems, such as breathing voice, hoarse voice, weak voice, or no voice.  Detects causes of throat and ear pain.  Evaluates difficulty in swallowing: a persistent sensation of lump in the throat, or mucous with blood.  Detects strictures or injury to the throat, or obstructive masses in the airway.
• 5.
   Direct laryngoscopeis carried out (usually) with the patient lying on his or her back; the laryngoscope is inserted into the mouth on the right side and flipped to the left to trap and move the tongue out of the line of sight, and, depending on the type of blade used, inserted either anterior or posterior to the epiglottis and then lifted with an upwards and forward motion ("away from you and towards the roof "). This move makes a view of the glottis possible. This procedure is done in an operation theatre with full preparation for resuscitative measures to deal with respiratory distress. There are at least ten different types of laryngoscope used for this procedure, each of which has a specialized use for the otolaryngologist and medical speech pathologist. This procedure is most often employed in direct diagnostic laryngoscope with biopsy. It is extremely uncomfortable and is not typically performed on conscious patients, or on patients with an intact gag reflex.
• 6.
   Indirect laryngoscopeis performed whenever the provider visualizes the patient's vocal cords by a means other than obtaining a direct line of sight. For the purpose of intubation, this is facilitated by fibrotic bronchoscopes, video laryngoscopes, fibrotic styles and mirror or prism optically- enhanced laryngoscopes. BY DESCO INDIA