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The Artificial Larynx

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					        The Artificial Larynx
• An individual who has had a laryngectomy
  is a likely candidate for an artificial larynx,
  also called an electrolarynx.
     What is a laryngectomy?
• Laryngectomy: Surgery to remove part or all of
  the larynx is a partial or total laryngectomy. In
  either operation, the surgeon performs a
  tracheostomy, creating an opening called a stoma
  in the front of the neck (may be temporary or
  permanent). Air enters and leaves the trachea and
  lungs through this opening. A tracheostomy tube,
  also called a trache tube, keeps the new airway
  open.
       Partial laryngectomy
• A partial laryngectomy preserves the voice.
  The surgeon removes only part of the voice
  box, just one vocal cord, part of a cord, or
  just the epiglottis, and the stoma is
  temporary. After a brief recovery period ,
  the trache tube is removed, and the stoma
  closes up. The patient can then breathe and
  talk in the usual way. In some cases,
  however, the voice may be hoarse or weak.
        Total laryngectomy
• In a total laryngectomy, the whole voice
  box is removed, and the stoma is
  permanent. The patient called a
  laryngectomee, breathes through the stoma.
  A laryngectomee must learn to talk in a new
  way.
               Electrolarynx
• There are several such devices on the market-of
  basically two types. They are all battery powered,
  but with one type of unit, you place it against your
  throat, push a button, and the machine transmits a
  vibration noise to your throat which you then form
  into words and sounds with your lips, teeth, and
  tongue. With the second type, the vibration sound
  is transmitted directly into your mouth via a small
  tube- words and sounds are made in a similar
  manner.
  The TruTone Electrolarynx
• Griffin Laboratories is currently producing
  the most natural sounding electronic
  artificial larynx available today, the
  TruTone speech aid. No other speech aid
  produces the natural sounding intonation of
  this instrument.
                         TruTone
• The only artificial larynx with
  tone control in a single button
• The widest tonal range
  available in an electrolarynx-
  bar none!
• Best sound quality available in
  a neck type artificial larynx
• Uses convenient 9 Volt
  Batteries
• Smallest 9 volt speech aid
  currently available
• Light weight- only 4.5 ounces!
• Durable impact resistant
  materials
    Contributing factors for a
         laryngectomy
• Usually done to treat cancer of the larynx,
  may also be performed to treat gunshot
  wounds, severe fractures, or other traumas.
• Smoking
• Alcohol
• Agricultural chemicals
• Genetics

				
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posted:8/12/2011
language:English
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