Ole Central Venous Catheters (CVC) e fa'amama, fa'aoga tasi na'o le polyurethane catheters ua fuafuaina e fa'afaigofie ai togafitiga fa'afu i totonu ole si'osi'omaga ogaoga tausiga. E maua i le tele o lumen configurations, umi, Farani ma Gauge lapoa. Ole tele ole lumen e tu'uina atu ai lumens fa'apitoa mo togafitiga fa'asusu, mata'ituina o le mamafa ma fa'ata'ita'iga venous. O le CVC o loʻo faʻapipiʻiina faʻatasi ma vaega ma mea faʻaoga mo le faʻaofiina ma le Seldinger technique. O oloa uma e fa'amama e le ethylene oxide.