Universal joint switching structure and auxiliary device special for operation and adopting switching structure

The utility model discloses a universal joint adapter structure and a special operation assist device adopting the adapter structure, and belongs to the technical field of medical instruments, the universal joint adapter structure and the special operation assist device adopting the adapter structure comprise a rubber tube, the interior of the rubber tube is hollow, a universal joint is arranged in the rubber tube, and the universal joint is arranged in the rubber tube. Connecting blocks are fixedly connected to the two ends of the universal joint correspondingly, mounting assemblies are arranged at the ends, away from the universal joint, of the pair of connecting blocks correspondingly, clamping arms are arranged on the two sides of each mounting assembly correspondingly, each mounting assembly comprises a threaded rod and a mounting block, and the outer end of each mounting block is fixedly connected with the corresponding connecting block. When the threaded rod is rotated, the driven arms on the two sides