Artificial replacement for a larynx

Details Artificial replacement for a larynx Artificial replacement for a larynx

1979-05-23

1981-06-23

Crowder, Clifford D.

A61F 120

Patent

active

042741629

ABSTRACT:
A larynx replacement for installation in a patient's trachea comprises an air passage controlled by a valve. The valve is gas operated and sensing means are provided for detecting the presence of food or liquid in the patient's throat to close the valve, and in this way to prevent the passage of food or liquid beyond the replacement larynx.

REFERENCES:
patent: 2804076 (1957-08-01), Giraudon
patent: 3747127 (1973-07-01), Taub
patent: 4044402 (1977-08-01), Edwards

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