3D Printing Technology Tig Opaque Resin rau Cov Khoom Siv Uas Siv Tau Los Tsim Artificial Arteries

Ib pab neeg ua haujlwm ntawm Swiss Federal Institute of Technology hauv Lausanne (EPFL) tau tsim ib txoj kev luam ntawv 3D uas siv lub teeb los ua cov khoom ntawm opaque resin hauv vib nas this. Qhov kev ua tiav no tuaj yeem muaj kev vam meej hauv kev lag luam biomedical, xws li kev tsim cov hlab ntsha. Cov kev tshawb fawb no tau luam tawm nyob rau hauv phau ntawv Journal Advanced Science.

Rov qab rau xyoo 2017, cov kws tshaj lij ntawm EPFL's Laboratory for Applied Photonic Devices (LAPD) tau tsim lub tshuab luam ntawv 3D uas muaj peev xwm ua cov khoom yuav luag tam sim ntawd. Tsib xyoos tom qab, pab neeg no tau txhim kho lawv cov cuab yeej luam ntawv thiab cov txheej txheem los tsim cov khoom ua los ntawm cov opaque resins uas yav tas los ua tsis tau.

EPFL lub tshuab luam ntawv 3D yog ib qho ceev tshaj plaws hauv ntiaj teb. Feem ntau 3D tshuab luam ntawv ua haujlwm los ntawm kev tso cov khoom siv los ntawm txheej, txheej txheem hu ua additive manufacturing. EPFL, ntawm qhov tod tes, siv cov txheej txheem ntim, qhov twg cov resin yog nchuav rau hauv lub thawv thiab spun. Cov kws tsim hluav taws xob teeb lub thawv nrog lub teeb los ntawm ntau lub kaum sab xis, ua rau cov resin kho thaum lub zog sib sau hauv nws ntau tshaj ib qib. Qhov no yog ib txoj hauv kev zoo heev uas tuaj yeem tsim cov khoom ntawm tib qhov kev daws teeb meem raws li 3D tshuab luam ntawv uas twb muaj lawm.

Txoj kev volumetric no tuaj yeem siv rau cov khoom ntawm yuav luag txhua yam duab. Nws siv cov engineers tsuas yog 20 vib nas this los tsim cov duab me me ntawm Yoda los ntawm Star Wars, piv rau li 10 feeb los ntawm cov txheej txheem tsim khoom ib txwm muaj.

Lub teeb muaj peev xwm kho tau cov resin los ntawm kev cuam tshuam nrog cov photosensitive compounds uas muaj nyob rau hauv cov yas. Cov kws kho tsheb hais tias txoj kev tshiab tsuas yog ua haujlwm yog tias lub teeb hla dhau ntawm cov resin nyob rau hauv txoj kab ncaj nraim yam tsis tau deviated, uas tsis yog cov ntaub ntawv nyob rau hauv opaque resins. Txog rau qhov kawg no, lawv tau tsim kev daws teeb meem.

Ua ntej, lawv siv lub koob yees duab los saib xyuas lub teeb ntawm lub teeb los ntawm cov resin, thiab tom qab ntawd kho cov kev suav kom them nyiaj rau lub teeb distortion. Lawv kuj tau teeb tsa lub tshuab luam ntawv los khiav kev suav thiab kho lub teeb, uas ua kom lub tshuab tsuas muaj lub zog tsim nyog los kho cov resin. Yog li ntawd, engineers tau luam tawm cov khoom nyob rau hauv opaque resin nrog yuav luag tib yam precision li pob tshab cob, ib tug loj breakthrough.

Raws li cov kauj ruam tom ntej, cov engineers vam tias yuav tuaj yeem siv txoj kev tshiab los luam tawm ntau cov ntaub ntawv nyob rau tib lub sijhawm thiab nce qhov kev daws teeb meem ntawm lub tshuab luam ntawv los ntawm ib feem kaum ntawm ib millimeter mus rau micrometer.