Development of an improved multi-pressure-sensor probe for recording muscle contraction in human intestine

We have developed an improved semiconductor recording probe for monitoring motility of the upper small intestine in humans. The probe consists of six ultraminiature silicon pressure sensors spaced 10 cm apart and encased in a flexible polyurethane sheath. The probe is small [2.67 mm (8F) diameter],...

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Bibliographic Details
Published in:Digestive diseases and sciences 1985-02, Vol.30 (2), p.119-123
Main Authors: MATHIAS, J. R, SNINSKY, C. A, MILLAR, H. D, CLENCH, M. H, DAVIS, R. H
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Humans
Intestine. Mesentery
Intestines - physiology
Muscle Contraction
Semiconductors
Transducers
Transducers, Pressure
Vertebrates: digestive system
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Summary:We have developed an improved semiconductor recording probe for monitoring motility of the upper small intestine in humans. The probe consists of six ultraminiature silicon pressure sensors spaced 10 cm apart and encased in a flexible polyurethane sheath. The probe is small [2.67 mm (8F) diameter], is easily passed transnasally, and is tolerated by patients for prolonged recording periods (24-36 hr) with a minimum of discomfort. The initial semiconductor and catheter material were those designed for use in the cardiovascular system, but they proved to be easily damaged by gastric acid and enzymes. After improvement of this probe, we now have recordings from more than 100 patients for an approximate total of 6000 hr of recording time. The improved probe is a durable recording device that facilitates the investigation of motility of the small intestine in humans in health and disease.
ISSN:0163-2116
1573-2568
DOI:10.1007/BF01308196