Hood Laboratories

Biomechanics Inc.

E. Benson Hood Laboratories

Gary Glass

Jeffrey J Fredberg

Bruno Louis

John Lehr

Lewis H Marten

Dennis F Creedon

Anthony M Sacchetti

Philip Drinker

A pharyngometer or similar wavetube-based apparatus which includes a wavetube which is detachable from the electronic platform. As the wavetube includes no electronic components, the wavetube can be sterilized thermally or chemically between patients without damaging the electronics of the electronic platform. The wavetube is attached to the electronic platform by a tab in the electronic platform which fits into a lateral groove within the wavetube. Similarly, a threaded member in the electronic platform engages a threaded aperture in the wavetube.

Pharyngometer with detachable wavetube

A method of acoustically imaging a portion of the morphology of a subject which includes the steps of utilizing a burst of pulses for which reflections are recorded prior to analyzing and plotting the data generated thereby.

Method of operating acoustic imaging

Single hand supportable and operable apparatus for providing an output signal characteristic of the morphology of a respiratory tract includes an acoustic pipe for exchanging acoustical energy with the tract. The pipe has an open first end in communication with an opening in the respiratory tract. A transducer, such as a loudspeaker, is coupled to the pipe for launching acoustical energy into the pipe, producing an incident wave towards the opening in the tract and a reflected wave to form a transient wave field in the pipe representative of the morphology of the tract. Preferably, first and second pressure wave sensing transducers, such as microphones, mounted along the length of the pipe in spaced relationship provide first and second transduced signals representative of the transient wave field. A processor processes the first and second transduced signals to provide an output signal characteristic of the morphology of the tract, such as the cross-sectional area as a function of the distance from the opening in the tract.

Acoustic imaging

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Cambridge, MA, United States of America

Gary Glass