This handheld 3D printer may be about to change the course of medical history. The BioPen will give surgeons the ability to write in new cells.
The ability to draw in new cells could have many medical impacts that we won't really see until it becomes a bigger, more marketable product but the possibilities are huge. The vision for it now is to be able to draw in new cells for bone repair purposes and even if that is all it ever becomes, that's still a huge leap forward.
The main draw to this is that it provides a more stable structural environment for the cells to survive and strive in. In the past, surgeons would simply inject stem cells in but the BioPen looks to have a better chance of success.