Ventriculoscope with expansion device

The utility model discloses a ventriculoscope with an expansion device, which comprises a ventriculoscope body assembled on a working suite. The ventriculoscope comprises a ventriculoscope body and further comprises an outer tube mechanism used for forming an external protection structure of the ventriculoscope body, an expansion mechanism used for expanding a puncture position and a speed adjusting mechanism used for adjusting the injection flow to adjust the expansion speed, the outer tube mechanism is located outside the ventriculoscope body, and the expansion mechanism is located at one end of the outer tube mechanism. The ventriculoscope has the advantages that the ventriculoscope is simple in structure, the outer tube mechanism is arranged, the outer tube mechanism and the ventriculoscope body jointly form a detachable integral structure, the dilation mechanism is arranged, gradual dilation is performed through the balloon, the dilation process is gentle and smooth, and the ventriculoscope is convenient