https://phys.org/news/2018-07-d-printers-reshape-recoveries-shark.html

A nurse responds with a specialized scanner that is designed to map the wound, generating digital models of the missing muscle, bone, capillaries, sinew and skin. She forwards the scans to the hospital's 3-D bio printing lab and—as the surfer is prepared for surgery—a technician generates the tissue that will be used to close the wound.

While science fiction today, University of Nebraska–Lincoln researchers—including Ali Tamayol and Prahalada Rao—are striving to make this scenario a reality.