冠状动脉疾病及心脏介入

A DES is a metallic coronary stent coated with anti-proliferative drug preventing neointimal hyperplasia and restenosis after PCI. INVAMED ATLAS DES uses a thin-strut cobalt-chromium platform with polymer-based drug delivery.

Rotational atherectomy is indicated for heavily calcified coronary lesions that cannot be crossed or dilated with standard balloons. TemREN diamond-coated burrs ablate calcified plaque while preserving elastic tissue.

A guide extension catheter telescopes through the guiding catheter to provide deep-vessel backup support, extending reach into distal, tortuous, or calcified segments. Essential for complex PCI.

A DEB delivers drug to the vessel wall during inflation without leaving a permanent implant. Primary use: in-stent restenosis treatment and small vessel disease where stent placement is undesirable.

Renal denervation is a catheter-based therapy that interrupts overactive sympathetic nerves in the renal artery wall to lower blood pressure in resistant hypertension. It provides an always-on effect independent of daily medication adherence and is used for selected patients confirmed on ambulatory monitoring.

A drug-eluting stent leaves a permanent drug-coated metal scaffold in the artery; a drug-coated balloon delivers the antiproliferative drug during a brief inflation and leaves no implant behind. Balloons suit in-stent restenosis, small vessels, and peripheral disease; stents are chosen when mechanical scaffolding is needed.