Extended dwell voice prosthesis

Details Extended dwell voice prosthesis Extended dwell voice prosthesis

1995-10-16

1997-05-27

Milano, Michael J.

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

Larynx, trachea, tracheobronchial prosthesis or combination...

A61F 220

Patent

active

056327757

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.

REFERENCES:
patent: 4614516 (1986-09-01), Blom
patent: 5078743 (1992-01-01), Mikalov
patent: 5300119 (1994-04-01), Blom
patent: 5392775 (1995-02-01), Adkins
patent: 5494029 (1996-02-01), Lane

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