Scientists 3D print cartilage to repair damaged windpipes.
Tracheal damage can be resulting from tumor, endotracheal intubation, blunt trauma, and other injuries.
Narrowing and weakness of the trachea can occur and are often difficult to repair.
The researchers combined two emerging fields: 3D printing and tissue engineering.
Shaping that cartilage into a nose or a windpipe is another matter.
Thats where 3D printing comes in.
In other words, they were growing just like windpipe cartilage.
source: www.techworm.net