Katheter na fitsari wani bututu ne da ake saka shi a cikin mafitsara ta cikin urethra don zubar da fitsari.Bayan an shigar da catheter a cikin mafitsara, akwai balloon kusa da kan catheter don gyara catheter Bututun yana tsayawa a cikin mafitsara kuma ba shi da sauƙin fitowa, kuma ana haɗa bututun magudanar ruwa zuwa jakar fitsari don tattara fitsari. .A cewar batirent na DFICETTER, urinary Chartheter Cathereter na jini, silicone catheter ko polyvinyl chloride catheter (pvc catheter).