Internal laryngeal prosthesis

Details Internal laryngeal prosthesis Internal laryngeal prosthesis

1978-08-07

1980-09-23

Frinks, Ronald L.

Surgery

Truss

Pad

12820716, A61F 120

Patent

active

042234115

ABSTRACT:
An internally worn laryngeal prosthesis for laryngectomized patients is described. The prosthesis is worn internally at the end of a surgically constructed fistula leading to the base of the patient's vocal tract. Exhaled air powers a miniature vibratory mechanism whose output enters the vocal tract directly and supplies both a voiced and a voiceless sound source. A tube connects the other end of the prosthesis to the tracheostoma from which air from the lungs powers the prosthesis. The tube contains a valve which may be manually or automatically controlled to allow either speech or quiet breathing.

REFERENCES:
patent: 3747127 (1973-07-01), Taub
patent: 4044402 (1977-08-01), Edwards
The Artificial Larynx (Book) by Yvan Lebrun, 1973, pp. 53-56.

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