Abstract: A method for generating an in-situ vascular stent includes applying a first reagent including riboflavin and/or riboflavin salt to a predetermined location in a blood vessel and applying light to the predetermined location to activate the first reagent, causing the first reagent to act on the predetermined location to generate the in-situ vascular stent.

Abstract: The present disclosure discloses a balloon catheter system with repair function, including: a tube body, having a distal end and a proximal end opposite to the distal end, and the tube body at least forming a fluid channel and an optical fiber channel; a balloon body, located at an outer periphery of the distal end of the tube body and communicating with the fluid channel; an optical fiber, arranged in the optical fiber channel and having a light emitting section extending to a position of the balloon body; and a laser generator, connected to a proximal end of the optical fiber and emitting a laser having a repair function with a wavelength ranging from 400 to 750 nm. The balloon catheter system provided by the present disclosure can effectively repair the tearing site of the vascular wall.