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《增強(qiáng)型多孔生物陶瓷的制備與實(shí)驗(yàn)分析》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、增強(qiáng)型多孔生物陶瓷的制備及實(shí)驗(yàn)研究inthefurnaceandgraduallyheatedto200℃to400℃gasificationtoeliminateorganicmatter,andthencontinuetoheatupto800℃to1300℃sinteringceramics．Thedenseandporousceramiccontainstwoparts．Densepartofthemajorroletoplaytoincreasethemechanicalstrength,whiletheporouspartofthemaincellandtissueingrow
2、thtoplaytheguidingroleofrevascularizationCanbeobtainedatthesametimeadequatebloodsupplynutrientstotheformationofneworganizations，thecorrespondingfunction．Theenhanceddenseceramicpartsmaycontainrnicropores，porerateof0．1％～20％．ThereinforC咖entoftheporouspartoftheporesizeof50—1000prn，porosityrateof50％to8
3、5％，withintheconnectionholediameter20—500Bin，porecommunicationrateof10％to100％．2．Theestablishmentofanimalmodels24NewZealandwhiterabbitswererandomlydividedintotwogroups：Agroupfortheexperimentalgroup，theenhancedporous13-TCPBioceramicsGroup；B，controlgroup，theporous13-TCPbioceramicsgroup．Eachgroupwere12
4、．EachrabbitunderwentbilateralfemoralIB-TCPbioeeramicimplantationintothedifferenttypesof13-TCPbioceramies．4，12，24weeksaftersurgery,fourrabbitsineachgroupwerekilledandremovesamples，retainedbackup．3．DeterminationofosteoilltegrationalabilityBonemineralcontentofbonedefectmeasured：4，12，24weeksaftersurge
5、ryanimalswerekilled，diedwithaNorlandXR-36-basedsmallanimalbonedensitymeasuringapparatusandtestsoftwareinAnimalbilateralradialbonemineralcont吼tofbonedefects．Histologicalexamination：Threegroupswere4，12and24weeksaftersurgerywiththeexecutionofairinjection1／3animals．Thesurgicalsite1／3ofthefemurwasremov
6、edandthenthesamplesafterthelongitudinalcuttinghardtissueandPonceaustainingandmorphologyobservation．一5．第二軍醫(yī)大學(xué)碩士學(xué)位論文4．DeterminationofbiodegradabilityThespecimenpreparationforthehardtissue，X-raymicrograph,thebasisforvariousorganizationsintheX’raydifferentinlighttransmissionbycomputerimageprocessingso
7、ftwaregivestheresult．5．DeterminationofbiomechanicaipropertiesToremovethetwoendcylindricalspecimenspolished．Measuringpressurearea,thetestpieceverticallyintheMTS855typebiomechanicaltestingmachine(USAMTS)，themeasure
