Tsis ntev los no, Lub Tsev Haujlwm Saib Xyuas Orthopedics ntawm Xijing Tsev Kho Mob, thawj zaug hauv ntiaj teb, siv tantalum hlau 3D luam tawm ntev-ntev cov kab mob vertebral lub cev rau kev tsim kho tsis zoo tom qab en bloc resection ntawm tus txha caj qaum malignant hlav. Li Hua, 37 xyoo, los ntawm Baoji City, Shaanxi Province, tuaj rau lub Department of Orthopedics ntawm Xijing Tsev Kho Mob vim qhov mob rov qab, uas cuam tshuam rau nws lub neej zoo. Tom qab kev sab laj nrog ntau pab pawg kws tshaj lij, Li Hua tau kuaj pom tias muaj kab mob ntawm cov qog nqaij hlav ntawm lub thoracic 9-11 vertebral lub cev thiab txha caj qaum compression. Cov kws tshaj lij tau txiav txim siab ua qhov peb ntu tom qab ntawm qhov kev txiav txim siab ntawm tus txha caj qaum. Qhov sib txawv ntawm ib ntu ntawm qhov kev txiav txim siab ib leeg, ntau ntu ntawm qhov kev txiav txim siab ntau dua yog qhov nyuaj thiab pheej hmoo, thiab ntu ntu ntu ntawm tus txha caj qaum rov ua haujlwm yog qhov ua rau muaj teeb meem ntau dua.
Nws tau tshaj tawm tias tam sim no tantalum hlau tau lees paub los ntawm cov kws kho mob hauv zej zog ua cov khoom siv biocompatible tib neeg cov ntaub so ntswg tawv. Lub elastic modulus ntawm ntxeem tau tantalum zoo ib yam li cov pob txha cov ntaub so ntswg, qis dua li ntawm titanium alloy, thiab nws muaj cuab kev zoo ntawm cov pob txha ingrowth thiab tiv thaiv kab mob. muaj peev xwm. Txawm li cas los xij, vim lub siab melting point ntawm tantalum hlau thiab tus nqi siab ntawm tantalum hmoov, 3D luam ntawv additive manufacturing ntawm tantalum hlau yog technically thiab economically nyuaj. Pab neeg ntawm Associate Professor Li Jing los ntawm Department of Orthopedics ntawm Xijing Tsev Kho Mob, nrog rau cov pab pawg tshawb fawb txog kev tshawb fawb thiab cov tsev kawm npaj, nrog kev txhawb nqa ntawm kev tsim khoom lag luam ntse hauv xeev Shaanxi, tau coj daim ntawv thov kev kho mob xav tau raws li kev coj ua. digital modeling thiab biomechanical tsim kev tshawb fawb. Rau lub hauv paus no, los ntawm kev siv lub ntiaj teb no tsuas yog high-power plasma teb atomization hmoov milling khoom, pheej yig high-zoo spherical tantalum hmoov yog npaj. Nyob rau tib lub sijhawm, ntawm tus kheej-tsim domestic high-precision electron beam 3D luam ntawv cov cuab yeej, qhov teeb meem ntawm cov melting ntawm high-melting tantalum hlau tau raug daws, thiab tus kheej tantalum hlau prostheses tuaj yeem luam tawm sai thiab ua tau zoo. Kev sib deev, pob txha ingrowth, thiab txhua yam teeb meem muab kev daws teeb meem.
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Txhawm rau kom rov tsim kho qhov tsis xws luag ntawm Li Hua tus txha caj qaum tom qab kev phais, pab pawg tshawb fawb sib koom ua ke tsim ib tus kheej ntev-ntev vertebral lub cev raws li CT cov ntaub ntawv thiab ua tiav 3D luam ntawv ntawm tantalum hlau vertebral lub cev. Hnub ua haujlwm, Li Jing tau ua qhov kev txiav txim siab ntawm peb ntu ntawm tus txha caj qaum thiab siv 3D luam tawm tantalum hlau vertebral lub cev rau kev txhawb nqa thiab kev tsim kho. Vim qhov zoo sib xws ntawm tus kheej tsim prostheses, cov txheej txheem rov tsim kho tau zoo heev thiab kev ua haujlwm tiav hauv 4 teev. Tom qab ua haujlwm, Li Hua tus txha caj qaum compression tau zoo tag nrho, thiab nws lub paj hlwb rov ua haujlwm zoo. Ib lub lis piam tom qab kev ua haujlwm, nws muaj peev xwm taug kev dawb hauv av. Nws ntseeg tau tias yav tom ntej, tus kheej thiab sib sau ua ke tantalum hlau 3D luam ntawv prostheses tuaj yeem txhim kho tau zoo ntawm kev lag luam thiab kev thoob ntiaj teb, tsis yog tsuas yog daws qhov mob ntawm feem ntau ntawm cov neeg mob tab sis kuj pab daws teeb meem rau orthopedic tawv nqaij kho thiab rov tsim kho.
