Document Detail


Novel pericardial access device: design features and in vitroevaluation.
MedLine Citation:
PMID:  21381874     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We have designed, built and tested a novel needle for percutaneously accessing the pericardial space. The problem with accessing pericardial space is that the pericardium is against the heart. Our novel device incorporates a single spiral tine at the distal tip of a10-gauge needle, which engages the parietal pericardium tangentially to the surface of the heart. One can then pull the pericardium away, thus minimizing the risk of ventricular perforation associated with oblique axial approaches. Using linear low-density polyethylene film as a surrogate pericardium, we have demonstrated reliable pericardial engagement with successful first-time engagement rates of up to 72% (n = 25 attempts) at approach angles ranging from 0° (normal incidence) to 30°. The associated torques were approximately 1 N mm. The performance limits of the model and the implications for clinical use of such a device are discussed.
Authors:
P M Pollak; S Mahapatra; J K Kanwal; G T Gillies
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-7
Journal Detail:
Title:  Journal of medical engineering & technology     Volume:  -     ISSN:  1464-522X     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702125     Medline TA:  J Med Eng Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
†Division of Cardiovascular Medicine, University of Virginia, PO Box 800158, Charlottesville, Virginia, USA.
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