What is the function of heart stent?

Stent, also known as coronary stent, is a commonly used medical instrument in cardiac interventional surgery, which has the function of dredging arterial blood vessels. The main materials are stainless steel, nickel-titanium alloy or cobalt-chromium alloy. It first appeared in 1980s, and experienced the development of metal stents, drug-coated stents and bioabsorbable stents.

On June 5, 2020, the first round of centralized procurement of 165438+ high-value medical consumables organized by China was officially opened in Tianjin, and 10 products from eight enterprises including Yisheng Technology, Shanghai Minimally Invasive Medical and Lepu Medical were selected. The price of coronary stent will be reduced from the previous average price of10.3 million yuan to 700 yuan.

Extended data:

Product classification:

According to different stent designs, it can be divided into wall stent, tubular stent, wound stent and annular stent.

According to the different bracket materials, it can be divided into 3 16L stainless steel bracket, nickel bracket and tantalum bracket.

According to different delivery methods, it can be divided into balloon expandable stent and self-expanding stent.

Different stents are designed according to special purposes, such as stents suitable for bifurcation lesions, stents suitable for branches and stents with membranes for coronary artery aneurysms or perforations.

Baidu encyclopedia-heart stent