Atrial Fibrillation or irregular rapid heartbeats affect many people worldwide with major causing death, and surgeons use cardiac catheter devices to map a heart’s electrical activity, which can also be used to detect rhythm disturbances in a patient’s heartbeats and ultimately identifying which part of heart is affected. The one size of these cardiac catheter devices makes it hard to catch these irregular heartbeats due to missed signals and spotty connections. A team of researchers from Stanford University has developed customized 3D Printed Cardiac Catheter Devices that fit each individual’s heart by recording an image file of the heart during an MRI or CT scan.

Source: https://news.stanford.edu/2018/07/26/novel-approach-cardiac-surgery/