A balloon is then passed around this wire and opened at the positioning of the blockage to re-establish blood circulation to the limb outside of the blockage. Occasionally the blockages are extremely hard (on account of calcium) to help keep open with simply a balloon angioplasty and a fantastic metal https://sgvasculargrp.com/medical-condition/peripheral-arterial-disease/icon-peripheral-arterial-disease-pad-2-3/