Great saphenous vein takes out great saphenous vein who shells ware dop device and use it and takes out and shell ware

The utility model discloses a great saphenous vein takes out great saphenous vein who shells ware dop device and use it and takes out and shell ware. Wherein great saphenous vein takes out and shells ware dop device, and including the first card body and the second card body, the first card body is including body and boss, has seted up first assembly groove on body vertical, has seted up second assembly groove on boss vertical, and third assembly groove has been seted up to second assembly trench in the one end in first assembly groove and intercommunication each other on the second card body vertical, can twist soon between the second card body and the boss and be connected, first assembly groove, second assemble groove and third assemble the groove can the inlay card haulage rope. The beneficial effects are that: the second card body revolves to twist to be connected in the time of the boss, staggers with second assembly groove and reach firm inlay card haulage rope purpose in third assembly groove on it and first assembly groove, and this kind of dop device can effectively prevent in the use, and break away from the haulage rope and in dropping on hypodermics, simple structure dismantles the convenient higher security that just has under the effect of traction force.