| 摘要 |
The present invention teaches a method and a system for ambulatory recording of the pH and the presence of various materials in compartments of the gastro-intestinal tract. The invention also reports the pH pattern in relation to the prevalence of the materials, and analyses to which degree such materials are in active or inactive states in their normal or foreign compartments. This is useful in situations, for example, when duodenal material is refluxed into the stomach and esophagus. The invention involves a gastro-intestinal catheter with a pH sensor and a combined light absorption and fluorescence sensor, a signal recorder and processor, and a written report producer.
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