A team at the Montpellier Laboratory of Informatics in France has developed a computerized 3D model that allows surgeons to use robotics to operate on a beating heart.

The robotic technology predicts the movement of the heart as it beats, enabling the surgical tools to move in concert with each beat. It means that the surgeon can perform a procedure as if the heart was stationary. This development could be very important for millions of patients who require less invasive surgical heart procedures, where stopping the heart from beating would cause unnecessary risk.

In addition to the heart, this model also accounts for the movement of a patient’s chest wall during breathing. Known as the “thin-plate spline deformable model”, this new computerized approach allows the robotic arm to continually adjust to heart and chest movements during surgery.

The new approach relies on a mathematical representation of the heart’s surface as it moves in three dimensions during pumping. Researchers have made many attempts to use computer modelling to account for heart and breathing motion.

However, previous efforts have relied on 2D imaging combined with other steps, making them to slow to provide instantaneous feedback during an operation. This new 3D imaging predicts the heart movements in a single step, making it faster in real-life surgical environments.

This new computer-generated model makes it possible for the surgeon to focus on suturing or cutting without having to adjust for the moving surface. Ultimately, this breakthrough will have many potential applications including heart surgery, coronary bypasses, and many kinds of brain surgery.

This important development will allow surgeons to perform less invasive procedures that are not “life-or-death”, but that do require a high level of precision and can have life-altering consequences for patients worldwide. To date, patients have gone without many of these procedures because the risk of complications during surgery outweighed the benefits.

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