Cov khoom siv pov tseg pov tseg yog siv hauv PTCA phais ua ke nrog lub zais pa catheter. Nthuav lub zais pa los ntawm kev ua haujlwm ntawm cov khoom siv zais pa, yog li nthuav cov hlab ntsha lossis cog stents hauv lub nkoj. Cov khoom siv pov tseg pov tseg cov pa hluav taws xob yog sterilized los ntawm ethylene oxide, lub txee lub neej yog 3 xyoos.