一种新型输尿管支架管及磁牵引拔除装置的制作及生物相容性研究

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1、第三军医大学硕士学位论文缩略语表英文缩写英文全称中文全称KH-570Silanecouplingagentγ-甲基丙烯酰氧基丙基三甲氧基硅烷PVApolyvinylalcohol聚乙烯醇PCLGAPolycaprolactone内醋丙交醋乙交醋三元共聚物PLAPolylactic聚乳酸NNewton牛顿hHour小时minMinute分钟mlMilliliter毫升℃Centigrade摄氏度dDay天cmCentimeter厘米mmMillimeter毫米1万方数据第三军医大学硕士学位论文FeasibilityandBiocompatibil

2、ityresearchofnewlydesignedureteralstentandmagneticcatheterAbstractPurpose:Ureteralstentwasusedtofacilitatethekidneydrainage.Itwasalwaysremovedbycytoscopewhichisainvasiveoperationcancausesomecomplicationasbleedingorinfectionandsoon.Thebiodegradableureteralstentwasreportedtoso

3、lvethisproblem,butthedegradationtimeofbiodegradableureteralstentcouldnotbechangetoadaptthedemandsofclinical,anditalsohasproblemwithbiocompatibility.Aminimallyinvasivemethoddoesnotrequirecystoscopyorfluoroscopicguidanceforureteralstentremovalissignificative.Sowedevelopedthefi

4、rstgenerationnewlydesigned“aureteralstentwithself-releaseprocessedpolyestersuturesandthemagneticincarcerationcatheter”andthesecondgenerationnewlydesigned“aureteralstentwithself-releaseprocessedpolyesterwebandthemagneticweb-capturecatheter”.Thecharacteristicofmaterialsweretes

5、tedtodeterminethereliabilityofthetwonewlydesignedureteralstent.Thebiocompatibilityweretestedtodeterminethesecurityofthetwonewlydesignedureteralstent.EstimatethefeasibilityofthemthroughacompetitiveexperimentinthetransparentureteraltractmodelApreliminaryobservationofthetwonewl

6、ydesignedureteralstentbyextracorporalremoveexperiment.MaterialsandMethods:Wedevelopedthefirstgenerationnewlydesigned“aureteralstentwithself-releaseprocessedpolyestersuturesandthemagneticincarcerationcatheter”andthesecondgenerationnewlydesigned“aureteralstentwithself-releasep

7、rocessedpolyesterwebandthemagneticweb-capturecatheter”.FeaturesoftheUreteralStentandMagneticRetrievalCatheter：Thecontentofferricoxidepowderscoatedonprocessedpolyestersutureswasanalyzedbyathermogravimetricanalyzer.Themechanicaldrafting-stretchingpropertiesofthesurgicalpolyest

8、ersuturesweredeterminedbyaforcetestingmachine.Themagnetizationvalueofthemag