Document Detail

Review of the potential of a wireless MEMS and TFT microsystems for the measurement of pressure in the GI tract.
MedLine Citation:
PMID:  15863344     Owner:  NLM     Status:  MEDLINE    
Telemetry capsules have existed since the 1950s and were used to measure temperature, pH or pressure inside the gastrointestinal (GI) tract. It was hoped that these capsules would replace invasive techniques in the diagnosis of function disorders in the GI tract. However, problems such as signal loss and uncertainty of the pills position limited their use in a clinical setting. In this paper, a review of the capabilities of MicroElectroMechanical Systems (MEMS) and thick film technology (TFT) for the fabrication of a wireless pressure sensing microsystem is presented. The circuit requirements and methods of data transfer are examined. The available fabrication methods for MEMS sensors are also discussed and examples of wireless sensors are given. Finally the limitations of each technology are examined.
A Arshak; K Arshak; D Waldron; D Morris; O Korostynska; E Jafer; G Lyons
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2005-01-28
Journal Detail:
Title:  Medical engineering & physics     Volume:  27     ISSN:  1350-4533     ISO Abbreviation:  Med Eng Phys     Publication Date:  2005 Jun 
Date Detail:
Created Date:  2005-05-02     Completed Date:  2005-09-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9422753     Medline TA:  Med Eng Phys     Country:  England    
Other Details:
Languages:  eng     Pagination:  347-56     Citation Subset:  IM    
Department of Physics, University of Limerick, Limerick, Ireland.
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MeSH Terms
Biomedical Engineering
Biophysics / methods
Equipment Design
Gastrointestinal Tract / anatomy & histology*
Hydrogen-Ion Concentration
Monitoring, Physiologic
Telemetry / methods*
Transducers, Pressure

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