Injection tool for medicine preparation

The utility model discloses an injection tool for medicine preparation, which belongs to the technical field of medicine preparation equipment and comprises a round tube, needle heads are communicated and mounted at inlets and outlets on two sides of the round tube, and needle caps for covering the needle heads are clamped on outer walls on two sides of the round tube. A micropore isolating membrane used for dividing an inner cavity of the round tube into two parts is installed in the inner cavity of the round tube, the two sets of needle heads are inserted into the solvent bottle and the medicine bottle respectively, the inner cavity of the solvent bottle is communicated with the inner cavity of the medicine bottle, a solvent in the solvent bottle and a medicine in the medicine bottle can be directly mixed, and the two needle heads are inserted into the solvent bottle and the medicine bottle respectively. The medicine bottle and the solvent bottle are directly communicated through the needle head and the rou