This insertable 3D printer will repair tissue damage from the inside

Researchers at the University of New South Wales, Sydney, have developed a flexible 3D bioprinter that can layer organic material directly onto organs or tissue. Unlike other bioprinting approaches, this system would only be minimally invasive, perhaps helping to avoid major surgeries or the removal of organs. It sounds like the future — at least in theory — but the research team warns it’s still five to seven years away from human testing.

The printer, dubbed F3DB, has a soft robotic arm that can assemble biomaterials with living cells onto damaged internal organs or tissues. Its snake-like flexible body would enter the body

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