Catheter with variable front end structure

The invention relates to a catheter with a variable front end structure. A catheter having a variable tip structure according to an embodiment of the present invention comprises: a tube (110) having an insertion channel (111) penetrating in a longitudinal direction, the tube (110) having one or more first incision slits (112) formed therein, the first incision slits (112) extending at a predetermined length from a tip end to a rear end; an imaging unit (120) that is disposed on the upper side of the tube (110) between the one or more first slit slits (112) and that is aligned with the insertion channel (111) at the tip of the insertion channel (111); a tip section (130) made of a flexible material and formed so as to cover the imaging section (120) and the outside of the tip of the tube (110); and a tool (140) which is inserted into the insertion channel (111) and in which a second incision slit (131) extending in the width direction of the tip section (130) is formed at a position separated by a predetermine