The invention provides a three-cavity
balloon catheter which is used for solving the problem that a
balloon catheter in the prior art does not have the
cutting function. The three-cavity
balloon catheter comprises a catheter head, the near end of the catheter head is connected with a balloon and a three-cavity tube, the three-cavity tube is connected with a
handle outlet, the far end of the balloon is conical, the boundaries of the two sides of the balloon are each provided with a developing material tag block, the near end of the balloon is connected with the outer layer of the three-cavity tube, cavity channels of the three-cavity tube include the first cavity channel through which a guide wire can penetrate, the second cavity channel where medicaments can be injected, and the third cavity channel with a
blood vessel knife, a knife
storage area is arranged at the far end of the third cavity channel, and the
blood vessel knife is arranged in the knife
storage area. The three-cavity
balloon catheter can break through intima to enter a true lumen in the interventional operation process, endangium of a
false lumen can be
cut open or broken through according to requirements, a
lesion section lumen is
cut for passing, and therefore repeated withdrawing and repeated
puncturing of the
balloon catheter can be avoided.