07 Nov
284
The stent belongs to the third category of medical devices, that is, the highest level of medical devices. It is a slender metal grid, very small, 2-4 mm in diameter, a few centimeters long, hollow, cylindrical, mesh metal tubes. The smallest diameter of the imported stent is 2.25 mm, while the smallest diameter of the domestic stent is 2.5 mm. The..