Two-half type visual dilator special for peritoneal dialysis catheter

The invention provides a two-half type visual dilator special for a peritoneal dialysis catheter. The two-half type visual dilator comprises a sheath made of stainless steel and a guide core nested in the sheath; the sheath comprises a left sheath and a right sheath, and the left sheath and the right sheath are matched with each other and each comprise a sheath body, a rod body and a first handle rod which are integrally formed; the front end of each sheath body is designed to be a circular truncated cone, and the rear end of the sheath body is designed to be a column body; the two rod bodies are provided with an arc-shaped protruding column and an arc-shaped inner groove which are matched with each other correspondingly; the two sides of the outer wall of each column body are symmetrically connected with corresponding first handle rods; the circular truncated cones and the column bodies are provided with visual windows, and transparent glass or plastic is installed on the visual windows; the top of the front