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1、ANALYSEOFPULSEWAVEPROPATIONINARTERIEAbstract:Baseduponthebloodvesselofbeingregardedastheelasticitytube,andthatthetissuerestrictsthebloodvesselwall,theruleofpulsewavepropagationinbloodvesselwasstudied.Theviscosityofblood,theelasticmodulusofbloodvessel,theradiusoftubethatinfluencedthepulsewavepropaga
2、tionwereanalyzed.Comparingtheresultthatconsideredtheviscosityofbloodwithanotherresultthatdidnotconsidertheviscosityofblood,wefinallydiscoverthattheviscosityofbloodthatinfluencesthepulsewavepropagationcannotbeneglected;andwiththeaccretionoftheelasticmodulusthespeedofpropagationaugmentsandthepressofb
3、loodstreamalsoheightens;whendiameterofbloodvesselreduces,thepressofbloodstreamalsoheightensandthespeedofpulsewavealsoaugments.Theseresultswillcontributetomakinguseoftheinformationofpulsewavetoanalyseandauxiliarilydiagnosesomecausesofhumandisease.IntroductionThebloodvessel’sgeometricformandmechanica
4、lcharactersareabletochangebecauseofthelocationpathologicalchanges,andthischangeinevitablyinducestheaberrancethatthecharactersofpulsewavepropagation.Fromthelaterstageofthefiftiesofthe20thcenturymoreandmorepeoplehavestudiedit.Ifwewellandtrulyidentifythepathologicalchangesfromthepulsewavesignalthatisc
5、heckedwithoutwound,thisisundoubtedlyanamazingcontributiontomedicalscience.Howeverifweachievedthispurpose,wemusthaveunderstoodtheruleofpulsewavepropagationinarteriessystem.Whenbloodisflowinginthebloodvessel,thepressureofblood,thespeedofblood,thefluxandthediameterofthebloodvesseldotheperiodicchangewi
6、thtime,andthewaveformiscomplicated.Pulsewaveisformedbyheartbeatalongarteriesbloodvesselandtheperipherybloodflowpropagationmedium-the13elasticityofarteries,thesizeofthebloodvessel,thedensityandviscosityofbloodetc,especially,ithasthetightrelationshipwiththearterieselasticity,caliberandthickness.Theex
7、perimentfindsthebiggertheelasticityofthearteriesbloodvesselis(namelythebiggertheaccilimationis),thenthelessthespreadofthepulsewaveis;thefasterandfasteralongthemainarteries,aortausuallyandsmallerarteries.For
