Cov caws pliav yog cov khoom lag luam uas tsis pom kev ntawm cov txheej txheem kho tib neeg lub qhov txhab. Cov tawv nqaij sab nrauv feem ntau tsis muaj tsos mob hauv zos, tab sis ntau dhau qhov nti tuaj yeem ua rau khaus hauv zos thiab lwm yam tsos mob, thiab tseem tuaj yeem ua rau muaj kev txwv tsis pub ua haujlwm lossis txawm tias mob qog noj ntshav.
Cov khoom siv kho mob silicone hnav tau siv rau tib neeg lub cev rau ntau dua 50 xyoo. Lawv muaj cov yam ntxwv ntawm tsis muaj tshuaj lom, tsis ua rau khaus, tsis muaj tshuaj tiv thaiv kab mob, tsis ua rau mob qog noj ntshav thiab teratogenic, thiab muaj kev sib haum xeeb zoo. Txij li K Perkins thiab lwm tus pom pom lub kaus mom silicone gel muaj qhov ua kom tawv muag nyob hauv xyoo 1983, ntau qhov kev tshawb fawb tau ua pov thawj tias cov khoom siv silicone tuaj yeem tiv thaiv qhov caws pliav loj tuaj.
Peb cov khoom lag luam silicone tau muab faib ua silicone gel pleev thiab silicone gel thaj. Ntawm lawv, silicone gel thaj yog pob tshab, nplaum, tawv, thiab tuaj yeem siv tau ntau zaus. Silicone gel thaj muaj cov huab cua zoo permeability, thiab cov dej hloov pauv tus nqi yog ze rau ib nrab ntawm qhov ntawm cov tawv nqaij ib txwm, uas tuaj yeem tiv thaiv lub qhov txhab los ntawm ya raws poob. Khaws lub qhov txhab ntub dej, uas yog qhov tsim nyog rau kev tsim dua tshiab ntawm cov hlwb epithelial. Scar-tshem silicone membrane muaj dej volatilization nyhuv ntawm nti. Kev tso dej tso cai rau ntawm daim tawv nqaij kom tswj tau cov dej ntau dua, thiab cov dej ua kom muaj txiaj ntsig zoo pab cov tawv nqaij tswj kev ywj pheej. Khaws cov tawv nqaij kom tiv thaiv cov tawv nqaij kom qhuav thiab tawg, yog li txo cov tsos mob ntawm daim tawv nqaij thiab khaus.
Nta
tsis muaj tshuaj lom, tsis ua rau khaus, tsis muaj antigenic, tsis yog carcinogenic, tsis-teratogenic, thiab muaj kev sib haum xeeb zoo.
