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The laryngeal tube is also recommended for medical personnel not experienced in tracheal intubation, and as a rescue device when intubation has failed in adults. [16] According to the manufacturer the use of Laryngeal tubes is contraindicated in people with an intact gag reflex , known oesophageal disease , and people who have ingested caustic ...
A laryngeal mask is composed of an airway tube that connects to an elliptical mask with a cuff which is inserted through the patient's mouth, down the windpipe, and once deployed forms an airtight seal on top the glottis (unlike tracheal tubes which pass through the glottis) allowing a secure airway to be managed by a health care provider.
Retroglottic airway devices (RGAs) pass behind the glottis and into the esophagus to create a seal allowing oxygen to be delivered directly to the trachea. [3] [5] The RGAs are designed as laryngeal tubes. [3] Examples of RGAs include the Combitube and the King LT. Studies comparing the effectiveness between the RGAs are lacking.
The most common device is a handheld, battery-operated device pressed against the skin under the mandible which produces vibrations to allow speech; [1] other variations include a device similar to the "talk box" electronic music device, which delivers the basis of the speech sound via a tube placed in the mouth. [2]
Compared to a cuffed tracheal tube, extraglottic devices provide less protection against aspiration but are more easily inserted and causes less laryngeal trauma. [27] Limitations of extraglottic devices arise in morbidly obese patients, lengthy surgical procedures, surgery involving the airways, laparoscopic procedures and others due to its ...
Blind insertion airway device, curved tube for ventiliation; Laryngeal mask airway, a supraglottic airway device used in anesthesia and in emergency medicine for airway management; Medical ventilator, a machine which may be connected to a mask, laryngeal mask airway or tracheal tube to mechanically move breatheable air into and out of the lungs
The laryngeal mask airway (LMA) is a tube with an inflatable cuff. A laryngeal mask airway can be positioned in the lower oropharynx to prevent airway obstruction by soft tissues and to create a safe channel for ventilation. The laryngeal mask airway is the standard rescue ventilation when endotracheal intubation cannot be accomplished.
A device called the Positube, which allows for esophageal intubation detection, can be used on tube number two to rule out the intubation of the Combitube in the trachea. The Positube checks for air flow resistance on tube number two and is very helpful in checking proper Combitube placement when intubation is performed in noisy environments.