Fixing patch cutting device used after intracranial aneurysm clipping operation

The invention provides an intracranial aneurysm clipping post-operation fixing patch cutting device. The intracranial aneurysm clipping post-operation fixing patch cutting device comprises a supporting base, a bottom plate, a pressing assembly, a connecting plate, a tool bit, a transmission assembly, a pushing assembly and a replacement driving assembly. The bottom plate is arranged at the bottom of the supporting seat, and the downward pressing assembly is arranged at the top of the supporting seat and right faces the bottom plate. The connecting plate is arranged on the supporting seat, a first sliding groove is formed in the connecting seat, a punched hole is formed in the first sliding groove, the punched hole is right opposite to the downward pressing assembly, a tool bit and a sliding tool bit are slidably arranged on the first sliding groove in the two sides of the punched hole respectively, and the tool bit and the downward pressing assembly can be connected through the sliding tool bit; the transmiss