High-purity leukocyte extraction device

The utility model discloses a high-purity leukocyte extraction device. Conical flask, wherein the top end of the conical flask is connected with the bottom end of the liquid storage pipe in a sleevedmode, a rubber ring is tightly attached between the liquid storage pipe and the conical flask, the bottom end of the liquid storage pipe is fixedly connected with the conical flask through a pluralityof connecting mechanisms, the top end of the liquid storage pipe is in interference fit with a top cover, and the right end of the liquid storage pipe is sequentially and fixedly connected with threeblocking mechanisms from top to bottom. The utility model discloses a high-purity leukocyte extraction device. Effect of rubber ring, the connection between the conical flask and the liquid storage pipe is sealed; effect of ejector rod, the top end of the liquid storage pipe can be closed; the needle cylinder can be inserted into the tube body under the action of the first plug block, so that leukocyte extraction is realized, and as the diameter of the tube body is far smaller than that of the conical flask, a layered leukocyte layer is more obvious, leukocyte is not easily contaminated by other substances during extraction, the purity of leukocyte is greatly improved, and convenience is provided for subsequent operation.