Document Detail


An investigation of the hammocking effect associated with interface pressure measurements using pneumatic tourniquet cuffs.
MedLine Citation:
PMID:  11574258     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A simple experimental arrangement is used to investigate the influence of sensor height on the pressure indicated by an inherently linear sensor sandwiched between a rigid curved surface and a pneumatic tourniquet cuff. The sensor-indicated pressure is monitored for sensor heights in the range 0-3 mm and for cuff inflation pressures of 0-40 kPa ( approximately 0-300 mmHg). The sensor response is found to be non-linear with a saturation tendency at high applied pressures. A model which treats the cuff as an elastic membrane draped over the sensor is shown to be successful in accounting for the general form of the sensor characteristic particularly at cuff pressures greater than about 5 kPa. The model is of use in estimating the errors that are likely to arise in intrusive sensors used to measure interface pressures under tourniquets.
Authors:
V Casey; S Griffin; S B O'Brien
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medical engineering & physics     Volume:  23     ISSN:  1350-4533     ISO Abbreviation:  Med Eng Phys     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-09-27     Completed Date:  2001-12-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9422753     Medline TA:  Med Eng Phys     Country:  England    
Other Details:
Languages:  eng     Pagination:  511-7     Citation Subset:  IM    
Affiliation:
Physics Department, University of Limerick, Limerick, Ireland. vincent.casey@ul.ie
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MeSH Terms
Descriptor/Qualifier:
Elasticity
Models, Theoretical*
Pressure
Tourniquets*

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


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