[The study and manufacture of multifunctional brain microsurgery operation dilator]

The dilator consists of fixative clasp-handle, fixative platform, support arm, spatula and handle. The dilator may be fixed on the edge of bone window easily in the brain operation. The functions of the dilator include localization, dilation, expose, washing, lighting and suction. The spatula of the dilator may be prepared according to the different depth and width of the operation field.