Ama-catheter ebhaluni le-PTA afaka ibhaluni elingu-0.014-OTW, ibhaluni elingu-0.018-OTW kanye nebhaluni elingu-0.035-OTW, aguqulelwe ngokulandelana kwawo ukuze abe ngu-0.3556 mm (0.014 amayintshi), 0.4572 mm (0.018 amayintshi) kanye no-0.80 amasentimitha angu-39. Umkhiqizo ngamunye uqukethe ibhaluni, Ithiphu, ishubhu elingaphakathi, indandatho ekhulayo, ishubhu yangaphandle, ishubhu yokucindezeleka ehlakazekile, ilunga elimise okuka-Y nezinye izakhi.