8 Types Of Endovascular Interventional Techniques V

This is an angioplasty technology parallel to vascular balloon dilatation. An alloy stent with a tubular mesh structure with continuous expansion force is delivered and released to the narrow blood vessel, and the external expansion force of the internal stent is used to support the vessel wall to maintain the continuity of the vessel. Open and unobstructed. Commonly used stents include balloon-expandable stents, self-expanding stents, covered stents, and drug-coated stents. Drug-coated stents can significantly reduce the restenosis rate and expand the scope of application of stents.

Inferior vena cava filter insertion prevents fatal pulmonary embolism caused by pelvic or lower extremity deep vein thrombosis dislodgement. The filter is placed in the inferior vena cava below the level of the opening of the renal vein to filter dislodged thrombus with a diameter ≥ 3 mm. Inferior vena cava filters are divided into temporary filters and permanent filters.

Use special intervening instruments (such as foreign body forceps, foreign body baskets) to remove foreign objects (such as puncture needles, catheters, guide wires, or ectopic internal stents, filters, and embolization steel rings) that have strayed into blood vessels or cardiac chambers. Interventional technology removed. The application of interventional intravascular foreign body removal, especially the improvement of foreign body removal devices in recent years, provides a solution to the problems of abnormal position and displacement of catheters and other devices during interventional medical operations. The interventional operating room should be routinely equipped with various foreign body removal instruments for emergency use at any time.