Replacing body parts with artificially grown duplicates is close to reality, as a leading US surgeon announced he is ready to transplant an artificially grown bladder when he gets regulatory approval.

Boston Children’s Hospital’s Dr. Anthony Atala believes this will happen in the next few months, and that if the transplant is successful he’ll move on to repairing hearts and possibly kidneys.

“I think over time there will be no limit,” he told the BBC. “I think it is just a question of figuring out all the different tissue types and cell types and how they work best, but eventually I think that following the same strategies just about every organ in the body will be repairable at the very least.”