Tracheoesophageal shunt

The tracheoesophageal shunt procedure (gracheoesophageal shunt procedure) is used to perform a two-stage or one-stage vocal reconstruction using a button-shaped articulation device for patients who have lost vocal function after total laryngectomy. The basic principle is that the gas in the lung is introduced into the laryngo-pharyngeal cavity through the shunt established between the tracheoesophageal fistula and the mucous membrane is vibrated. On the road. There are many types of sounding tubes: blom singer (1979) sounding tube, panie (1981) sounding button, and singh (1988) valve button, etc. Among them, there is a pedicle in the esophagus side wall of the blom singer low-pressure flap valve The valve is usually closed, open during pronunciation, and its airflow resistance is not large; the panje button is a double-flange silicone tube, the esophagus is a unidirectional valve with a duckbill type, the trachea is open, and the esophagus and trachea each have a convex This type has a small volume and large resistance to airflow, but it has little effect on breathing and cough. The singh valve button is connected to a short silicone tracheal tube on the side of the articulation tube of the singh valve. It is installed with a single open when inhaled and closed when pronounced. To the ventilation tube, the patient may not block the tracheostomy while speaking. Clinically, blom singer pronunciation tubes are used.