Peb txhua tus paub tias cov hnab yas tau siv dav hauv tshuaj, khoom noj khoom haus, khoom siv txhua hnub, khoom ua si, thiab lwm yam. phooj ywg zoo nkauj yas? Peb tuaj yeem soj ntsuam qhov tshwm sim ntawm cov yas ntim khoom thiab cov txiaj ntsig zoo ntawm cov phooj ywg yas ua ib puag ncig.
Lub luag haujlwm ntawm cov yas
1. Ua kom nruj qhov yooj yim ntawm cov polymer
Ib qho ntawm cov kev ua ntawm cov yas yog kom ntxiv qhov kev hloov pauv ntawm cov polymers. Nws yog vim li no cov yas yuav tau siv ntau yam hauv tshuaj thiab khoom ua si. Ntau tus neeg paub tias cov yas yuav siv tau los ua cov tshuaj ntxiv rau hauv cov yas, tab sis lawv tsis paub tias lawv tseem tuaj yeem siv rau hauv cov cuab yeej kho mob. Feem ntau, hauv cov khoom muaj tshuaj (IV) infusion hnab thiab kab, hlab ntshav hlab leeg txoj hlab ntshav, cov hnab ntshav thiab cov kab infusion, cov khoom noj khoom haus pub rau lub hnab, nasogastric leeg, peritoneal lim ntshav lub hnab thiab cov kab, cov kev ua kom zoo ntxiv (CPB), Membrane mob ntsws oxygening (ECMO) ) thiab lim ntshav tubing tau ntxiv cov khoom siv yas.
2. Txo qhov kub hloov ua haujlwm kub
Cov tshuab ntawm kev txo cov iav kev hloov pauv kub yog tias thaum lub hnab yas thiab cov roj yas yaj ua ke, lub ntsuas me me ntawm cov yas yuav tso rau nruab nrab ntawm cov roj molecular saw, ua kom lub zog qis dua ntawm cov polymer molecular chains thiab ua rau lawv nce ntxiv, nws nce qhov ua tau ntawm polymer molecular saw txav thiab txo qhov hloov ntawm qhov sib txawv ntawm cov xov tooj polymer molecular, kom cov phom tuaj yeem yauv pauv mus rau qhov hloov ntawm qhov kub ntawm qhov kub tsawg, thiaj li nce qhov khoom yas ntawm cov yas.
3. Txo qhov ua kom tawv tawv ntawm cov npoo ntawm polymer
Cov nyhuv ntawm kev txo qhov npoo ntawm lub polymer nyuaj nyob rau hauv cov xwm ntawm cov pab pawg ntawm cov polymer molecular saw. Cov quab yuam nruab nrab ntawm cov saw molecular nrog cov pawg muaj zog polar yog qhov loj, thiab qhov quab yuam ntawm cov saw molecular nrog cov pawg tsis muaj cov rog yog qhov me me. Cov polymers nrog cov pawg polar yog qhov yooj yim los ua qauv, thiab yas yuav ntxiv tau. Cov pawg polar ntawm cov yas yuav sib cuam tshuam nrog cov pawg polar ntawm cov polymer, yog li ua rau lub zog txaus nyiam ntawm cov polymers, thiab ua tiav cov hom phiaj yas.
4. Txo yaj viscosity
Cov nyhuv no yog feem ntau nyob hauv cov ntaub ntawv sau thiab ntim khoom. Lub luag haujlwm tseem ceeb yog succinate cov sib txuas. Lawv tuaj yeem copolymerize nrog txhua lwm kom tau txais kev cuam tshuam thiab txias tiv thaiv polyvinyl chloride copolymer, thiab cov txheej txheem uas ua tiav Tus neeg sawv cev tuaj yeem txo qhov viscosity ntawm yaj.
Kev pab cuam ntawm ib puag ncig tus phooj ywg yas
Peb tau qhia txog vim li cas cov yas siv tshuaj saum toj. Kev siv cov khoom siv hauv ib puag ncig-yeeb yaj kiab yog qhov muaj peev xwm dhau los ntawm kev siv hnab yas. Los ntawm cov lus qhia saum toj no, peb tuaj yeem pom tau tias tseem muaj ntau lub hnab yas siv, tab sis raws li kev siv tshuaj ntxuav khoom, kev siv ntau dhau yuav ua rau lub siab rau kev tiv thaiv ib puag ncig. Vim li cas peb thiaj hais li no? Qhov nce ntawm kev siv hnab yas yuav ua rau kom cov khoom sib txuam tsim nyog. Thaum cov khoom pov tseg tsim tawm, qee yam tshuaj lom neeg yuav tshwm sim, uas yuav dhau qhov peb tswj tau. Tab sis ntawm ib sab tes, lub luag haujlwm ntawm cov yas ntim khoom tseem muaj ntau heev, yog li cov neeg tau tsim cov khoom lag luam yas ib puag ncig zoo los daws cov teeb meem ib puag ncig. Nyob rau hauv txoj kev no, ib puag ncig-phooj ywg plasticizers tseem tsim nyog.