A clinical trial studies personalized printed airway splints
Michigan Medicine and Materialise moved from individual expanded-access cases toward a structured study.

What happened
Michigan Medicine announced a clinical trial in March 2025 studying bioresorbable printed splints for children with severe tracheobronchomalacia, a condition involving airway collapse. The study had opened in January.
The team planned to enroll 35 infants across an eight-year study, with devices produced by Materialise. The customized splints were designed to support the outside of the airway and gradually be absorbed by the body.
Earlier use had relied on case-by-case expanded access. The trial was intended to evaluate safety and efficacy; its opening was not a report of completed trial results or full FDA approval.
Read the sources
Primary-source reporting; this is not a hands-on review. Sources checked Oct 24, 2026.