Electrical audio signal processing systems and devices – Artificial larynx – electrical
Patent
1983-11-01
1985-09-03
Rubinson, Gene Z.
Electrical audio signal processing systems and devices
Artificial larynx, electrical
3 13, A61F 120
Patent
active
045396981
ABSTRACT:
An intra-oral artificial larynx is provided including a signal generator and a speaker mounted on a prosthesis for mounting the larynx within the intra-oral cavity. A horn is provided having an input opening coupled to the speaker for acoustically amplifying the output of the speaker, the horn also having an output opening. A saliva barrier is removably mounted to the output opening of the horn for precluding penetration of saliva into the horn, the barrier having a first end which is telescopically received within the output opening of the horn and the second end having a mouth formed on a bias to the longitudinal axis of the mounting and a microporous membrane sealing the mouth. The mouth of the mounting has an elliptical shape which has been found tends to increase speaker volume. Moreover, the telescopic mating of the mounting and the horn provides a saliva barrier which is easily replaceable by the user.
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Brenman Henry S.
Katz Philip
Lowry Louis D.
Schwartz Harold
Brady W. J.
Rubinson Gene Z.
Thomas Jefferson University
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