Surgeons have found that 3D printers are becoming saviors on the operating table. At the Kosair Children's Hospital in Louisville, Kentucky, USA, cardiac surgeon Erle Austin used 3D printed model planning and experiments to ensure the successful completion of the surgery before a complicated operation was performed on a child with heart disease.
Roland Lian Cung Bawi, a 14-month-old boy, was born with a heart problem: a hole in the heart and a dislocation of the aorta and pulmonary artery. He can't sleep and has difficulty breathing. Roland's mother, Par Tha Sung, said: "I didn't expect him to survive."
Congenital heart defects are the most common type of birth defects, and nearly 1% of newborn babies have such problems each year. It is understood that the cause of the defect is complex and diverse, and the severity of the impact on the body is also very different.
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In addition, cardiac surgery for infants and young children requires the doctor to operate inside a small, delicate organ that has not yet fully grown, which is very difficult. Usually, they carefully study the magnetic resonance image of the child's heart on the computer screen before performing the operation.
Austin showed the 2D images of the CT scan to other surgeons and the results were contradictory. So he decided to convert the 2D data into a 3D model, hoping that the 3D model would help him find the best solution before surgery and improve the quality of surgery for this young patient.
"Some people think that when you do a heart surgery, you can see everything you see on the patient's body. Well, to see everything, you may have to destroy some important structures," Austin said. “Sometimes surgeons can only rely on speculation to decide what is the best surgical solution.â€
Austin turned to Tim Gornet for help. Tim Gornet is the administrator of the Rapid Prototyping Center at the University of Louisville, a 3D printing and research center that has produced multiple 3D models of spinal cord defects and tumors.
Gornet uses software to convert CT data into a 3D model and send it to a Makerbot 3D printer. After about 20 hours, a patient heart model made with a flexible polymer was printed at a cost of only about $600.
Now Austin can take care of the child's heart in his hands. “As soon as I got this model, I clearly understood what I needed to do and how I could do this,†Austin said. The model is made twice as large as the actual heart size so that the doctor can clearly see its structure to create a pathway between the aortic valve and the ventricle, thereby avoiding more cuts and multiple surgeries. .
“If a picture is worth a thousand words, then the value of the model is 1000 times that of the picture,†Mr. Gornet said.
Last Friday, Roland's mother took the child to Louisville for a check and the results were very good. "I can't express my feelings," she told the interviewer. "He sleeps very well, he plays... he often laughs happily."
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