3D Printed Bones Resist Infection

The portable 3D printer is roughly the same size as a normal writing pen, and as easy to use as other medical instruments. Its creators had to be mindful of the temperature of the implants, because if the printed biomaterial is too hot, it can damage surrounding tissue and cause complications. The final version is a low-melting-temperature-device so that you can “print on the back of your hand without even sensing it.”