Kungiyar Tashar Jakadama (CVC) sune bakararre, mai amfani kawai kawai fasinjoji ne kawai da aka tsara don sauƙaƙe maganin jiko a cikin yanayin kulawa mai mahimmanci. Ana samun su a cikin nau'ikan daidaitawar lumen, tsayi, Faransanci da girman Ma'auni. Bambance-bambancen lumen da yawa suna ba da kwazo lumen don jiko jiko, matsa lamba da kuma samfurin venous. An tattara CVC tare da kayan haɗin gwiwa da na'urorin haɗi don sakawa tare da dabarar Seldinger. Duk samfuran suna haifuwa ta hanyar ethylene oxide.