Platform type aortic arch internal and external branch support

The utility model provides a platform type aortic arch internal and external branch support, and belongs to the field of medical instruments. The platform type aortic arch internal and external branch stent comprises an aortic arch stent main body, and an external branch stent, a first internal branch stent and a second internal branch stent which are communicated with an inner cavity of the aortic arch stent main body. The outer branch support is arranged on the outer wall of the aortic arch support body, and the first inner branch support and the second inner branch support are both embedded in the aortic arch support body. The aortic arch stent main body comprises a platform part which is sunken into the aortic arch stent main body, and the two inner branch stents are located on the platform part. According to the platform type internal and external branch stent, the external branch stent is firstly aligned with a branch artery and reconstructs the branch artery, transient blood communication with the bran