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1、ANALYSEOFPULSEWAVEPROPATIONINARTERIEAbstract:Baseduponthebloodvesselofbeingregardedastheelasticitytube,andthatthetissuerestrictsthebloodvesselwall,theruleofpulsewavepropagationinbloodvesselwasstudied.Theviscosityofblood,theelasticmodulusofbloodvessel,theradiuso
2、ftubethatinfluencedthepulsewavepropagationwereanalyzed.Comparingtheresultthatconsideredtheviscosityofbloodwithanotherresultthatdidnotconsidertheviscosityofblood,wefinallydiscoverthattheviscosityofbloodthatinfluencesthepulsewavepropagationcannotbeneglected;andwi
3、ththeaccretionoftheelasticmodulusthespeedofpropagationaugmentsandthepressofbloodstreamalsoheightens;whendiameterofbloodvesselreduces,thepressofbloodstreamalsoheightensandthespeedofpulsewavealsoaugments.Theseresultswillcontributetomakinguseoftheinformationofpuls
4、ewavetoanalyseandauxiliarilydiagnosesomecausesofhumandisease.IntroductionThebloodvessel’sgeometricformandmechanicalcharactersareabletochangebecauseofthelocationpathologicalchanges,andthischangeinevitablyinducestheaberrancethatthecharactersofpulsewavepropagation
5、.Fromthelaterstageofthefiftiesofthe20thcenturymoreandmorepeoplehavestudiedit.Ifwewellandtrulyidentifythepathologicalchangesfromthepulsewavesignalthatischeckedwithoutwound,thisisundoubtedlyanamazingcontributiontomedicalscience.Howeverifweachievedthispurpose,wemu
6、sthaveunderstoodtheruleofpulsewavepropagationinarteriessystem.Whenbloodisflowinginthebloodvessel,thepressureofblood,thespeedofblood,thefluxandthediameterofthebloodvesseldotheperiodicchangewithtime,andthewaveformiscomplicated.Pulsewaveisformedbyheartbeatalongart
7、eriesbloodvesselandtheperipherybloodflowpropagationmedium-the13elasticityofarteries,thesizeofthebloodvessel,thedensityandviscosityofbloodetc,especially,ithasthetightrelationshipwiththearterieselasticity,caliberandthickness.Theexperimentfindsthebiggertheelastici
8、tyofthearteriesbloodvesselis(namelythebiggertheaccilimationis),thenthelessthespreadofthepulsewaveis;thefasterandfasteralongthemainarteries,aortausuallyandsmallerarteries.For
