【英语阅读理解,求答案和分析,高手进FirstSelf-containedHeartImplantedApatientonthebrinkofdeathhasreceivedtheworld’sfirstself-containedartificialheart—abattery-powereddeviceaboutthesizeofasoftballthatrunswithou】
英语阅读理解,求答案和分析,高手进
FirstSelf-containedHeartImplanted
Apatientonthebrinkofdeathhasreceivedtheworld’sfirstself-containedartificialheart—abattery-powereddeviceaboutthesizeofasoftballthatrunswithouttheneedforwires,tubesorhosesstickingoutofthechest.
TwosurgeonsfromtheUniversityofLouisvilleimplantedthetitaniumandplasticpumpduringasever-houroperationatJewishHospitalMonday.Thehospitalsaidthepatientwas“awakeandresponsive”Tuesdayandrestingcomfortably.Itrefusedtoreleasepersonaldetails.
Thepatienthadbeenexpectedtodiewithinamonthwithouttheoperation,anddoctorssaidtheyexpectedtheartificialhearttoextendtheperson’slifebyonlyamonth.Butthedeviceisconsideredamajorsteptowardimprovingthepatient’squalityoflife.
Thenewpump,calledAbioCor,isalsoatechnologicalleapfromthemechanicalheartsusedinthe1980s,whichwereattachedbywiresandtubestobulkymachineryoutsidethebody.Themostfamousofthose,theJarvic-7,usedairasapumpingdeviceandwasattachedtoanapparatusaboutthesizeofawashingmachine.
“Ithinkit’spotentiallyamajorstepforwardintheartificialheartdevelopment,”saidDr.DavidFaxon,presidentoftheAmericanheartAssociation.However,hesaidthedreamofanimplantable,permanentartificialheartisnotyetareality:“Thisisobviouslyanexperimentaldevicewhoselong-termsuccesshastobedemonstrated.”Onlyabouthalfofthe4,200Americansonawaitinglistfordonorheartsreceivedthemlastyear,andmostoftherestdied.
Somedoctors,includingRobertHiggins,chairmanofcardiologyattheMedicalCollegeofVirginiainRichmond,saidartificialheartsareunlikelytoreplacedonorhears.
“Adonorheartinagoodtransplantcanlast15to30years,”hesaid.“It’sgoingtobehardtoreplacethatwithamachine.”
TheAbilCorhasa2-poundpumpingunit,andelectroniccontrolsthatadjustthepumpingspeedbasedonthebody’sneeds.Itispoweredbyasmallbatterypackwornoutsidethebodythattransmitscurrentthroughtheskin.
36.前两段告诉Self-containedartificialheart
A.wasmadeoftitaniumandpump
B.hadbroughtthepatienttothebrinkofdeat