Blood sampling bandage

The utility model relates to the technical field of bandages, in particular to a blood sampling bandage which comprises a fixing box, one side of the fixing box is connected with a first bandage, and the other side of the fixing box is connected with a second bandage. And two sets of threaded holes are formed in the top of the fixed box, screws are connected into the threaded holes through threads, the bottoms of the screws are connected with an isolation plate through bearings, and springs are fixedly installed at the bottom of the isolation plate. The pressing plate is fixedly installed at the bottom of the spring, the sliding block is embedded in the sliding groove and connected with the sliding groove in a sliding mode, the bottom face of the fixing box is not flush with the bottom face of the medicine gasket, the pressing plate and the top are in a fixed state, part of the medicine gasket can feel pressing force through the elastic force effect of the spring, and therefore the medicine gasket can be fixe