I-Tianck Medical PTCA (Percutaneous Transluminal Coronary Angioplasty) Guidewireiyisisetshenziswa sezokwelapha esibucayi esisetshenziswa ezinqubweni zokungenelela zenhliziyo ukuze uzulazule emithanjeni yegazi futhi ufinyelele emithanjeni ye-coronary. Isebenza njengomhlahlandlela wezinye izisetshenziswa zezokwelapha, ezifana nama-catheter ebhaluni noma ama-stents, ngesikhathi sezinqubo ezihlasela kancane zokwelapha isifo se-coronary artery (CAD). Izintambo zokuqondisa ze-PTCA ziklanyelwe ukuguquguquka kakhulu, ziqondise, futhi ziqine, okwenza odokotela benhliziyo benze izinqubo eziyinkimbinkimbi ngokunemba nokuphepha.