Bare metal support

The utility model discloses a bare metal stent. The bare metal stent comprises a balloon dilatation catheter, a metal stent body, a tip end and a sleeve assembly. The metal stent is sleeved on the balloon of the balloon dilatation catheter and can be radially expanded along with the expansion of the balloon; the tip is arranged at the end part of the balloon dilatation catheter; the cannula assembly is arranged on the balloon dilatation catheter in a sleeving mode and can move along an outer catheter body of the balloon dilatation catheter. A plurality of sharp bulges are distributed on the metal bracket; through the cooperation of the balloon dilatation catheter and the metal support, large-area complete contact between medicine and the vessel wall of a target treatment part can be achieved, medicine loss is reduced, the treatment effect is guaranteed, it can be guaranteed that flowing of blood in the vessel is not affected in the treatment process, and the treatment effect is improved. Blood vessel blockage