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    Design of Novel Catheter Insertion Device

    Source: Journal of Medical Devices:;2008:;volume( 002 ):;issue: 002::page 27558
    Author:
    Erik K. Bassett
    ,
    Alexander Slocum
    DOI: 10.1115/1.2936119
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Poor positioning of needles and catheters may result in repeated attempts at correct placement, injury to adjacent structures or infusions into inappropriate spaces. Existing catheter insertion methods do not uniformly provide feedback of the tip location, nor prevent the needle from going beyond the target space. The purpose of this research was to develop a design tool to be used to create a new catheter insertion device. This device would advance a needle in firm tissue but automatically release it upon entrance into the desired space. The system studied consisted of a flexible filament (OD ∼0.9mm) in compression passing through a tube (ID 1.22mm) with both straight and curved sections. A mathematical model based on oil drilling methods was developed to predict the compressive force dissipated in the filament for any given tube geometry. A correction factor on one of the two terms in the model was necessary to achieve best results, but proved to be accurate for all 100+ tests completed. With it, this model accounted for the following parameters: Angular displacement of tube bends, radial clearance, coefficient of friction, lengths, tube and filament radii, number of bends, moment of inertia, and modulus of elasticity. Implementation of this model should allow for a more safe and effective catheter insertion device.
    keyword(s): Design AND Catheters ,
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      Design of Novel Catheter Insertion Device

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    http://yetl.yabesh.ir/yetl1/handle/yetl/139069
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    contributor authorErik K. Bassett
    contributor authorAlexander Slocum
    date accessioned2017-05-09T00:30:01Z
    date available2017-05-09T00:30:01Z
    date copyrightJune, 2008
    date issued2008
    identifier issn1932-6181
    identifier otherJMDOA4-27991#027558_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/139069
    description abstractPoor positioning of needles and catheters may result in repeated attempts at correct placement, injury to adjacent structures or infusions into inappropriate spaces. Existing catheter insertion methods do not uniformly provide feedback of the tip location, nor prevent the needle from going beyond the target space. The purpose of this research was to develop a design tool to be used to create a new catheter insertion device. This device would advance a needle in firm tissue but automatically release it upon entrance into the desired space. The system studied consisted of a flexible filament (OD ∼0.9mm) in compression passing through a tube (ID 1.22mm) with both straight and curved sections. A mathematical model based on oil drilling methods was developed to predict the compressive force dissipated in the filament for any given tube geometry. A correction factor on one of the two terms in the model was necessary to achieve best results, but proved to be accurate for all 100+ tests completed. With it, this model accounted for the following parameters: Angular displacement of tube bends, radial clearance, coefficient of friction, lengths, tube and filament radii, number of bends, moment of inertia, and modulus of elasticity. Implementation of this model should allow for a more safe and effective catheter insertion device.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDesign of Novel Catheter Insertion Device
    typeJournal Paper
    journal volume2
    journal issue2
    journal titleJournal of Medical Devices
    identifier doi10.1115/1.2936119
    journal fristpage27558
    identifier eissn1932-619X
    keywordsDesign AND Catheters
    treeJournal of Medical Devices:;2008:;volume( 002 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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