XXXX stoma vent voice prosthesis.

@entity1 @entity1740 @entity825 @entity1173
Having been in use for the past couple of years, the "duckbill" valved Silastic tube developed by Blom and Singer is well established as a device for vocal rehabilitation of the laryngectomee. The newer " @entity1740 " prosthesis developed by Panje incorporates a similar vale in Silastic. Neither of these devices can be used with tracheal stomal stenosis or with a deep tracheal stoma behind prominent sternomastoid muscles. The ritual of taping the Blom-Singer prosthesis and the frequent failure of the tape to hold are other distinct disadvantages. Limitations are imposed on @entity1 selection with the Panje prosthesis because of the rigid dimensions and the possibility of @entity1173 of the device, as well as the necessity for manual dexterity on the part of the @entity1 . A new device has been fashioned utilizing the "duckbill" Silastic tube as a valve attached to a new type of @entity825 stoma button. This appears to have universal application, is not difficulty to change, requires no taping, and is self-maintaining. There is no possibility of @entity1173 . The device is simple and appears to overcome many of the disadvantages of the other two. The tracheal esophageal puncture must be made in a cephalad direction so that the tracheal air diverted through the prosthesis will be directed toward the pharynx and not toward the esophagus. Prostheses directed caudad will not function and those @entity1 should be repunctured.
