A multifunction and programmable computerized barostat

A new computerized barostat allowing digestive tone measurement but also programmed distensions is described. The apparatus consists of a pump, driven by a computer, which injects or aspirates air in a flacid bag placed in a part of the gastrointestinal tract when relaxation or contraction occurs. S...

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Bibliographic Details
Published inGastroentérologie clinique et biologique Vol. 17; no. 5; p. 347
Main Authors Hachet, T, Caussette, M
Format Journal Article
LanguageEnglish
Published France 1993
Subjects
Atropine - pharmacology
Colon - physiology
Gastroenterology - instrumentation
Gastroenterology - methods
Humans
Manometry
Medical Informatics Computing
Muscle Tonus - drug effects
Stomach - physiology
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Summary:A new computerized barostat allowing digestive tone measurement but also programmed distensions is described. The apparatus consists of a pump, driven by a computer, which injects or aspirates air in a flacid bag placed in a part of the gastrointestinal tract when relaxation or contraction occurs. Several parameters can be programmed for tone measurement: mean pressure, window pressure and air flow rate. Isovolumic or isobaric distensions can be performed using three modes: linear, stepwise or step by step with intermediate deflation. The height (mL or mmHg) of the steps and the duration of the distensions and the deflations can also be programmed. Three automatic and one manual safety systems are included. In comparison with previously described barostats the main feature of this apparatus is that it is entirely computerized and can be used for programmed distensions.
ISSN:0399-8320