Lumen stent

The invention provides a lumen stent which comprises a main stent, branch stents and connecting pieces, and the main stent is of a tubular structure with openings in the two ends; the branch stent is arranged in the lumen of the main stent, and at least partial area of the branch stent can move relative to the main stent; the connecting piece has elasticity, is arranged between the inner surface of the main body support and the inner surface of the branch support and is used for limiting the moving range of the branch support. According to the lumen stent, a channel can be effectively established for implantation of the bridging stent, implantation of the bridging stent is facilitated, meanwhile, the phenomenon that the bridging stent is blocked due to displacement of the main body stent is prevented, it is guaranteed that the implanted bridging stent cannot affect blood circulation in branch blood vessels, and the stent has the advantages of being simple in structure and convenient to use. And the use safety