Handheld 3D printer could let doctors “fill in” damaged bones [#3DPrinting]

This Handheld 3D Printer Could Let Doctors "Draw" New Bones
"The BioPen, developed at Australia’s University of Wollongong, holds two different "inks:" one made of human cells, the other a protective, UV-activated structural gel. The pen layers the cells inside the protective gel, which hardens under the device’s built-in UV light. Instead of the current weeks-long process of harvesting and growing replacement cartilage tissue, the compact, handheld device could enable doctors to "draw" functional material directly on to a damaged bone." via Gizmodo

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