Esophageal transducer

Details Esophageal transducer Esophageal transducer

1975-01-28

1976-02-24

Howell, Kyle L.

Surgery

Truss

Perineal

73398AR, 128 205D, 128 205E, A61B 510

Patent

active

039398234

ABSTRACT:
An esophageal transducer measures pressure due to esophageal contractions. The transducer is inserted into the esophagus at the end of a catheter. The transducer is fully contained within a housing at the end of the catheter and is capable of measuring pressure variations at all points about its entire circumference. The housing has a flexible portion extending around its entire circumference which encloses a fluid-filled section. The fluid of the fluid-filled section contacts a pressure-sensitive piezoelectric material which produces an electrical output indicative of pressure changes in the fluid-filled section.

REFERENCES:
patent: 3437088 (1969-04-01), Bielinski
patent: 3480003 (1969-11-01), Crites
patent: 3710781 (1973-01-01), Hutchins et al.
patent: 3811427 (1974-05-01), Kresse
patent: 3811429 (1974-05-01), Fletcher
patent: 3831588 (1974-08-01), Rindner

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