▎ 摘　　要

NOVELTY - The tracheal support has a prepared zinc-doped graphene phase carbon nitride-bismuth sulfide heterojunction composite powder that is added into ethanol to prepare an ethanol suspension, by attaching bismuth sulfide to the surface of zinc-doped graphene-phase carbon nitride to construct a zinc-doped graphene-phase carbon nitride-bismuth sulfide heterojunction composite powder. The zinc-doped graphene-phase carbon nitride-bismuth sulfide polymer composite tracheal stent is prepared by selective laser sintering technology. The macromolecule is a polylactic acid, polyglycolic acid, polylactic acid-glycolic acid copolymer, polycaprolactone, and polydioxanone. USE - Graphene-phase carbon nitride-bismuth sulfide/macromolecule composite air pipe bracket for treating malignant tumor, trauma and tracheostenosis caused by trachea injury patient. ADVANTAGE - The composite air pipe bracket can generate local high temperature and a large amount of active oxygen under the near-infrared light excitation, so as to play a good sterilizing effect, at the same time, the zinc ion released by the bracket also has the function of promoting the regeneration of the tracheal cartilage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of zinc-doped graphene-phase carbon nitride-bismuth sulfide/macromolecule composite gas pipe support. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the doped zinc graphene-phase carbon nitride-bismuth sulfide heterojunction composite powder of scanning electric mirror image.