Document Detail


Frequency dependent hysteresis of silicone and latex mock arteries used in stent testing.
MedLine Citation:
PMID:  15850099     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Mock arteries also called as mock vessels are one of the best alternatives available to researchers in evaluating the mechanical characteristics and durability of intravascular medical products without having to use animal and human clinical studies. The behavior of mock arteries depends on the frequency of loading. This makes it essential to evaluate and analyze the compliance and hysteresis of the mock arteries at different frequencies. Hysteresis, the difference in the pressure-volume curve between the loading cycle and the unloading cycle, plays an important role in determining the mechanical properties of the mock arteries. Six each of silicone and latex mock arteries were tested for this study. Three silicone and three latex mock arteries were tested at room temperature for dynamic internal compliance, and the remaining three each of silicone and latex mock arteries were soaked in distilled water at 37 degrees C for 36 hours and then compliance tested using a dynamic compliance tester. All arteries were tested at four different frequencies: 72, 500, 1000, and 1500 beats per minute.
Authors:
Ramesh Rajesh; E R Strope; K S Price; J C Conti
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Biomedical sciences instrumentation     Volume:  41     ISSN:  0067-8856     ISO Abbreviation:  Biomed Sci Instrum     Publication Date:  2005  
Date Detail:
Created Date:  2005-04-26     Completed Date:  2005-05-25     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0140524     Medline TA:  Biomed Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  163-8     Citation Subset:  IM    
Affiliation:
University of Kansas, Department of Mechanical Engineering, Lawrence, KS 66046, USA.
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MeSH Terms
Descriptor/Qualifier:
Arteries / physiology*
Biocompatible Materials / chemistry
Biomimetic Materials / chemistry*
Blood Vessel Prosthesis*
Elasticity
Equipment Design
Equipment Failure Analysis / instrumentation*
Humans
Latex / chemistry*
Materials Testing / methods
Nonlinear Dynamics
Pressure
Silicones / chemistry*
Stents*
Stress, Mechanical
Vascular Resistance
Chemical
Reg. No./Substance:
0/Biocompatible Materials; 0/Latex; 0/Silicones

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


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