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contributor authorBarry, Matthew M.
contributor authorShayan, Mahdis
contributor authorJankowitz, Brian T.
contributor authorChen, Yanfei
contributor authorDuan, Xinjie
contributor authorRobertson, Anne M.
contributor authorChyu, Minking K.
contributor authorChun, Youngjae
date accessioned2017-05-09T01:21:36Z
date available2017-05-09T01:21:36Z
date issued2015
identifier issn1932-6181
identifier othermed_009_01_011011.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/159040
description abstractSmart nitinol guidewires have been proposed to improve trackability, facilitating the advancement of catheters through complex vascular anatomies during neurovascular interventions. A smart 0.015 in. diameter nitinol guidewire was actualized through Joule heating of oneway and twoway shape memory alloys (SMA). The device functionalities in terms of bending performance were analyzed: (1) trackability of a 4 Fr catheter as determined in an anatomically correct in vitro environment; (2) time and spatial response of the smart guidewire as a function of material temperature and applied current; and (3) thrombogenic effects as a function of temperature and applied voltage. The results suggest that smart guidewires have substantially improved trackability (i.e., deflection of 15 deg) to overcome the “ledge effectâ€‌ with the absence of thrombogenicity via a smart guidewire–catheter combined transcatheter based procedure which keeps the catheter surface temperature at 30–33 آ°C.
publisherThe American Society of Mechanical Engineers (ASME)
titleSmart Guidewires for Smooth Navigation in Neurovascular Intervention
typeJournal Paper
journal volume9
journal issue1
journal titleJournal of Medical Devices
identifier doi10.1115/1.4029558
journal fristpage11011
journal lastpage11011
identifier eissn1932-619X
treeJournal of Medical Devices:;2015:;volume( 009 ):;issue: 001
contenttypeFulltext


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