ASTM F2079-2009 测量气球反冲力的标准试验方法.可膨胀幅度

作者:标准资料网 时间:2024-05-19 09:37:21  浏览:9565   来源:标准资料网

【英文标准名称】:StandardTestMethodforMeasuringIntrinsicElasticRecoilofBalloon-ExpandableStents
【原文标准名称】:测量气球反冲力的标准试验方法.可膨胀幅度
【标准号】:ASTMF2079-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F04.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:recoil;stent;Angioplasty;Balloon-expandablestents;Characteristics/characterization--surgicalimplants/applications;Coronaryartery;Intrinsicelasticrecoil;Nominaldiameter(inmaterials/analysis);Performance--surgicalmaterials/applications;Re
【摘要】:Minimalstentrecoilisadesirablefeatureofastentbecauseitminimizesthemaximumdiametertowhichastentmustbeexpandedtoachieveitsfinalrelaxeddiameter.Astenthavingahighrecoilmustbeexpandedtoagreaterdiametertoachieveitsfinalrelaxeddiameterthanastenthavinglowrecoil.Practically,excessiveexpansionofthevesselintowhichthestentistobeimplantedmaycausetissuedamageresultinginapoorimmediateresultorpoorlong-termoutcome.Stentrecoilisaffectedbyintrinsicpropertiesofthematerialusedtoconstructthestentandthespecificgeometricdesignofthestent;therefore,measuringstentrecoilisanessentialpartofevaluatingthedesign.1.1Thepurposeofthistestmethodistoquantifythepercentagebywhichthediameterofastentdecreasesfromitsexpandeddiameterwhilestillonthedeliveryballoontoitsrelaxeddiameterafterdeflatingtheballoon.Thistestmethodisappropriateforstentsmanufacturedfromamaterialthatisplasticallydeformedwhenthestent''sdiameterisincreasedfromitspredeployedsizetoitspostdeployedsizebymechanicalmeans.Thistestmethodmaybeperformedinairatroomtemperatureunlessthereisaknowntemperaturedependenceofthematerial,inwhichcase,thetemperatureatwhichthetestisconductedshallbestatedinthereport.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:11_040_20
【页数】:3P.;A4
【正文语种】:英语