I-Catheter Eqondisayo ivame ukusetshenziswa ekuhlinzeni kokungenelela kwenhliziyo (njengokungenelela kwemithambo yenhliziyo, ukungenelela kwemithambo yegazi engaphandle, njll.). Umsebenzi wayo oyinhloko ukuhlinzeka ngendlela ezinzile yezinsimbi ezilandelayo (njenge-balloon catheters, i-stents) nokuqinisekisa ukuthi izinsimbi zokuhlinzwa zingafinyelela kahle endaweni yesilonda.