Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Larynx – trachea – tracheobronchial prosthesis or combination...
Patent
1980-06-03
1989-02-28
Frinks, Ronald L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Larynx, trachea, tracheobronchial prosthesis or combination...
12820716, A61F 220, A61M 1600
Patent
active
048081833
ABSTRACT:
The voice button prosthesis of the present invention is used for a patient having his larynx removed and having the upper end of his trachea opening through a stoma to the atmosphere. A small opening or fistula is surgically made in the rear of the trachea and in the forward wall of the esophagus so as to provide communication between the interior of the trachea and the interior of the esophagus. The prosthesis comprises an elongated tube adapted to be inserted into the fistual. The tube has a pair of spaced apart flanges adapted to engage the opposite ends of the fistula so as to hold the tube in place. A one way valve is provided in the rearward end of the tube for permitting air to pass from the trachea into the esophagus, and for preventing fluid from passing from the esophagus into the trachea.
REFERENCES:
patent: 3263684 (1966-08-01), Bolton
patent: 3747127 (1973-07-01), Taub
patent: 3788327 (1974-01-01), Donowitz et al.
patent: 3858571 (1975-01-01), Rudolph
patent: 3871380 (1975-03-01), Heros
patent: 4037604 (1977-07-01), Newkirk
patent: 4044402 (1977-08-01), Edwards
Frinks Ronald L.
University of Iowa Research Foundation
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