Blood vessel end-side anastomosis bridging device

The blood vessel end side anastomosis bridging device comprises a first base and a second base, the first base is provided with a first channel, the second base is provided with a second channel, and a side opening is formed in the side of the first channel; the side opening is provided with a first end part, and the second channel is provided with a second end part pressed towards the first end part; a first annular air passage is annularly arranged in the first base, a first external air passage is arranged to be communicated with the outside, a plurality of first auxiliary air passages are arranged between the first end part and the first annular air passage, and the first external air passage is detachably connected with a first guide pipe; a second annular air channel is annularly arranged in the second base, a second external air channel is arranged and communicated with the outside, a plurality of second auxiliary air channels are arranged between the second end and the second annular air channel, and