EVOH ntawm Lava kua embolic system yog copolymer nrog dimethyl sulfoxide (DMSO) hnyav thiab raug tshem tawm ntawm (radiopaque) micronized tantalum hmoov. Thaum txhaj los ntawm lub catheter thiab tov nrog cov ntshav, cov kuab tshuaj yog diluted, cia cov copolymer nyob rau hauv ib tug sponge-zoo li cam khwb cia nrog ib tug zoo li gel. Qhov no ua rau cov hlab ntsha txhaws qeeb dua li cov kua nplaum. Qhov sib tov muaj viscosities sib txawv (Lava12, 18 thiab 34), uas tuaj yeem xaiv raws li kev xav tau. Piv txwv li, Lava-18 yuav nkag mus tob rau hauv lub txaj vascular mus rau lub foci ntawm AVM, thaum Lava-34 yuav nyob sai dua thiab tuaj yeem siv rau hauv cov hlab ntsha nrog lub caj dab dav dua.
Txij li thaum Lava kua embolic tus neeg saib xyuas tsis yog nplaum, muaj ntau qhov kev pheej hmoo ntawm catheter clogging thiab tau daig dua nrog cov kua nplaum. Lava tuaj yeem txhaj tshuaj tsis tu ncua uas siv tib lub catheter los ntsuas kev nce qib los ntawm fluoroscopy. Ib qho me me ntawm cov ntaub ntawv polymer gel nyob ib ncig ntawm lub hau ntawm lub catheter, tsim ib daim tawv nqaij ntawm qhov sib txuam ntawm cov sib tov thiab cov ntshav. Raws li ntau emboli raug txhaj, nws nthuav dav, tsim kom tsis tu ncua thiab rov ua dua ntawm emboli, ua rau emboli ntws zoo li lava, muab qib siab ntawm kev tswj ntau dua li cov kua nplaum.
Ib qho ntawm cov khoom tshwj xeeb rau Lava kua embolic cov neeg ua haujlwm yog lawv lub peev xwm los sau lub hom phiaj ntawm cov hlab ntsha thiab ua rau cov hlab ntsha occlusion los ntawm kev nce qib nrog cov ntshav ntws thiab tob rau hauv lub txaj vascular mus rau thaj chaw uas lub catheter lossis coil yuav tsis tuaj yeem ncav cuag. Cov txheej txheem meej uas occlusion tshwm sim nyob ntawm hom kua embolism siv. Lawv kuj ua nws tus kheej ntawm tus neeg mob tus kheej cov txheej txheem coagulation kom induce vascular occlusion.