Each patient’s images were converted into a 3D computer model of the patient’s left ventricle (the primary pumping heart chamber) and aorta. In their study, the researchers utilized medical scans from 15 patients with aortic stenosis. According to the researchers, in the future, doctors could employ the process to 3D print a patient’s heart and aorta, then implant a multitude of valves into the printed model to determine which design offers the ideal function and is fit for the patient. The team claims that this narrowing can be tuned to imitate aortic stenosis, an ailment in which the aortic valve narrows, requiring the heart to exert more effort to force the blood to circulate through the body.Īortic stenosis is generally treated by surgically inserting a synthetic valve intended to enlarge the natural valve of the aorta. The researchers can also compress the vessel by inflating an independent sleeve surrounding a 3D printed aorta. Researchers can further tune the outflowing air to rhythmically pump up the sleeve’s bubbles and contract the heart to imitate its pumping activity when the sleeve is bonded to a pneumatic system. The team created sleeves similar to blood pressure cuffs that encase around a 3D printed heart and aorta to imitate the heart’s pumping action. This method additionally has the potential to print a patient’s aorta, which is the main artery that transports blood from the heart to the remainder of the human body. This produces a soft, flexible shell that is precisely the structure of the patient’s own heart. ![]() The method entails transforming medical images of a patient’s heart into a 3D computerized model, which the team then 3D printed with polymer-based ink. What is the procedure for this innovative approach? That’s the part that we get excited about.” We’re not only printing the heart’s anatomy but also replicating its mechanics and physiology. Mechanical Engineering Professor Ellen Roche said, “Being able to match the patient’s flows and pressures was very encouraging. The advantage of our system is that we can recreate not just the form of a patient’s heart, but also its function in both physiology and disease,” said Luca Rosalia, a student in the MIT-Harvard Program in Health Sciences and Technology. There are massive variations, especially when patients are sick. ![]() The soft robotic models are patient-specific and may aid clinicians in choosing the ideal implant for a particular patient. With this custom robotic heart, the team hopes to assist doctors in tailoring treatments to patients’ heart-related forms and functions. The team can then direct the activity of the replica to imitate the patient’s blood-pumping capabilities. Researchers at the Massachusetts Institute of Technology (MIT) have developed a method for 3D printing a flexible and soft replica of a patient’s heart.
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