THE JOHNSON,ALLAN VOICE PROSTHESIS - A MODIFICATION OF THE BIVONA VOICE PROSTHESIS FOR IMMEDIATE POST-FITTING APHONIA AFTER SECONDARY TRACHEOESOPHAGEAL PUNCTURE
Pdr. Spraggs et al., THE JOHNSON,ALLAN VOICE PROSTHESIS - A MODIFICATION OF THE BIVONA VOICE PROSTHESIS FOR IMMEDIATE POST-FITTING APHONIA AFTER SECONDARY TRACHEOESOPHAGEAL PUNCTURE, Journal of Laryngology and Otology, 108(7), 1994, pp. 579-581
The combination of a narrow oesophageal lumen and a hypertonic pharyng
o-esophageal (P-E) segment following laryngectomy and secondary trache
o-oesophageal puncture (TEP) can cause obstruction of a voice prosthes
is and consequently prevent phonation. The 'Allan Johnson' modificatio
n of the Bivona voice prosthesis incorporates a stainless steel slide
and has been successfully used to remedy such a circumstance.