3D-printed bionic tracheal stents based on tunable triblock thermoplastic copolyester elastomers for tracheal stenosis

, the bionic stents effectively alleviated malignant tracheal stenosis in a rabbit model. Overall, these findings suggest that PCL-PMCL-PCL triblock thermoplastic elastomers hold strong potential for next-generation tracheal stents and may serve as promising biomaterials for broader tissue engineering applications.