Health

Doctors implant 3-D printed ears made from human cells


The patient, from Mexico, was born with microtia, a rare birth defect that causes the eardrum, or outer part of the ear, to be small and deformed (it can also affect hearing in the ear). With more research, company executives say, the technology could be used to make many other replacement body parts, including spinal discs, nose, knee meniscus, and more. rotator cuff and regenerative tissue for the tumor. They add that 3-D printing can even create much more complex vital organs, such as the liver, kidney and pancreas.

Dr Arturo Bonilla, a pediatric ear reconstructive surgeon in San Antonio who performed the woman’s ear transplant surgery, said: ‘It’s so exciting, sometimes I have to restrain myself. a little. The trial is funded by 3DBio Therapeutics, but Dr Bonilla does not have any financial stake in the company. “If everything goes according to plan, this will revolutionize the way it is done,” he said.

James Iatridis, head of the spine bioengineering lab at the Icahn Mount Sinai School of Medicine, says that other 3-D implants are in the pipeline, but he is not aware of any other products being developed. Clinical trials.

“The subsequent 3-D ear implantation is a proof of concept for assessing biocompatibility, shape conformance and shape retention in living humans,” said Dr. Iatridis. Iatridis said.

The outer part of the ear is a relatively simple appendage that is more aesthetic than functional, says Carnegie Mellon’s Dr. Feinberg. He warns that the road to solid organs – such as the liver, kidneys, heart and lungs – is still very long. “Just going from the ear to the spinal disc is a pretty big jump, but it’s more realistic if you have ears,” he says.

The 3-D printing manufacturing process creates a solid three-dimensional object from a digital model. This technology typically involves a computer-controlled printer depositing material into thin layers to create the exact shape of the object.



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