Extended dwell voice prosthesis

Details Extended dwell voice prosthesis Extended dwell voice prosthesis

1994-07-27

1996-01-02

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Larynx, trachea, tracheobronchial prosthesis or combination...

623 11, 12820716, A61F 220, A61B 100

Patent

active

054804329

ABSTRACT:
The position of the rear esophageal flange of a voice prosthesis disposed in a tracheoesophageal fistula is determined by forming a distinctive radiopaque pattern on the flange, preferably by insert molding a radiopaque ring along the perimeter of the flange and radiographically imaging the flange to determine the pattern of the ring. Pattern recognition of the ring is improved by forming the concentric flapper valve of radiopaque material.

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