Visual paranasal sinus balloon dilatation device

The invention discloses a visual paranasal sinus balloon dilatation device. The device comprises a sinoscope with the front end bendable and a dilatation balloon sleeve with a double-layer structure, wherein the front section of the sinoscope is sleeved with the dilatation balloon sleeve, an uninflated balloon body is arranged at the front end of the dilatation balloon sleeve, and a liquid injection port is formed in the rear end of the dilatation balloon sleeve and communicated with the balloon body through a channel arranged in the dilatation balloon sleeve; the intubation position is visible when a dilatation balloon is placed in, the situation that a patient is hurt from blind intubation to bleed is avoided, the dilatation balloon can be placed in the position to be dilatated accurately and quickly, operation efficiency is guaranteed, harm to the patient is reduced, reutilization can be achieved, the structure is simple, and cost is low.