Pressure-compensated pneumatic speech simulator

Details Pressure-compensated pneumatic speech simulator Pressure-compensated pneumatic speech simulator

1983-10-14

1984-12-18

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Artificial larynx, electrical

3 13, A61F 120

Patent

active

044894406

ABSTRACT:
A pneumatic speech simulator has a vibratory tone-generating element which produces an audible tone in response to the flow of pressurized air within a predetermined pressure range, said tone being transmitted to a patient's pharyngeal region by a conduit, such as a nasal catheter. The simulator includes a pressure compensation valve, upstream from the tone-generating element, which maintains the pressure experienced by the tone-generating element within its operating range as the pneumatic resistance of tone-transmitting conduit is increased due to partial or total blockage.

REFERENCES:
patent: 1867350 (1932-07-01), Burchett
patent: 1910966 (1933-05-01), Riesz et al.
patent: 4292472 (1981-09-01), Lennox
patent: 4338488 (1982-07-01), Lennox

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