A stent is a special elastic metal structure made in the form of a cylindrical skeleton, which is placed in the artery lesion after interventions to prevent retrombosis in case of dissection of the vascular wall and restenosis. The stent “supports” the walls of the artery. Stents are delivered tucked into the delivery system and are installed in the arteries by deployment from a folded state due to the elastic forces of the structure. Nitinol stents have a “memory effect”, excellent flexibility and high expanding power.
Self-expanding peripheral and coronary arterial stents are made of titanium-nickel alloy
The system consists of the following elements:
- 1. Self-expanding stent
- 2. Delivery system
Criteria for the use of this stent:
- Newly formed atherosclerotic lesions;
- Insufficient angioplasty results;
- Stratification with blockade of blood flow;
- Decreased vessel lumen during shunting by anastomosis due to stenosis;
- Pelvic artery obstruction;
- Damage in the form of separation of the vessel into 2 or more branches.
- Patients with cardiogenic shock.
- The use in the treatment of patients with contraindications for therapy using platelet aggregation inhibitors and (or) anticoagulants.
- The use for the treatment of injuries distal to a previously installed stent.
- The use in the treatment of injuries distal to an upstream stenosis, which is not subject to preliminary dilatation, or injuries adjacent to inoperable zones with significant ailments that impede blood circulation.
Damaged areas that cannot be covered by a single stent.
- The use in the treatment of patients with diffuse vascular diseases, expressed in a long abnormal segment of the vessel without intermediate normal sections of the vessels.
- Large blood clots and complex vascular diseases. Treatment of patients with chronic or acute intraluminal thrombosis after thrombolytic therapy of the affected area.
- Aneurysm of the artery yet to be treated.
- Damage preventing the PTA or other intervention procedure.
- Acute allergic reaction to contrast medium.
- The use in the treatment of patients with established hypersensitivity to nickel-titanium alloys.
- The use in the treatment of patients with injuries that may interfere with proper stent positioning.
- All other contraindications characteristic of the PT.
The product is disposable. It is not maintainable.