Document Detail

A non-invasive method for gastrointestinal parameter monitoring.
MedLine Citation:
PMID:  15641138     Owner:  NLM     Status:  MEDLINE    
AIM: To propose a new, non-invasive method for monitoring 24-h pressure, temperature and pH value in gastrointestinal tract. METHODS: The authors developed a miniature, multi-functional gastrointestinal monitoring system, which comprises a set of indigestible biotelemetry capsules and a data recorder. The capsule, after ingested by patients, could measure pressure, temperature and pH value in the gastrointestinal tract and transmit the data to the data recorder outside the body through a 434 MHz radio frequency data link. After the capsule passed out from the body, the data saved in the recorder were downloaded to a workstation via a special software for further analysis and comparison. RESULTS: Clinical experiments showed that the biotelemetry capsules could be swallowed by volunteers without any difficulties. The data recorder could receive the radio frequency signals transmitted by the biotelemetry in the body. The biotelemetry capsule could pass out from the body without difficulties. No discomfort was reported by any volunteer during the experiment. In vivo pressure and temperature data were acquired. CONCLUSION: A non-invasive method for monitoring 24-h gastrointestinal parameters was proposed and tested by the authors. The feasibility and functionality of this method are verified by laboratory tests and clinical experiments.
Wen-Xing Wang; Guo-Zheng Yan; Fang Sun; Ping-Ping Jiang; Wen-Qiang Zhang; Gen-Fu Zhang
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  World journal of gastroenterology : WJG     Volume:  11     ISSN:  1007-9327     ISO Abbreviation:  World J. Gastroenterol.     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-01-10     Completed Date:  2005-03-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100883448     Medline TA:  World J Gastroenterol     Country:  China    
Other Details:
Languages:  eng     Pagination:  521-4     Citation Subset:  IM    
Institute of Precision Engineering and Intelligent Microsystem, Shanghai Jiaotong University, Shanghai 200030, China.
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MeSH Terms
Body Temperature
Electronics, Medical / instrumentation,  methods
Equipment Design
Gastroesophageal Reflux / diagnosis*
Hydrogen-Ion Concentration
Middle Aged
Monitoring, Physiologic / instrumentation*,  methods
Telemetry / instrumentation*,  methods
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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