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Surgery on beating heart thanks to robotic helping hand
Date:12/10/2009

Los Angeles, London, New Delhi, Singapore and Washington DC (Dec 11, 2009) If you've been waiting for the day to arrive when computers actually start performing surgery, that moment might soon be upon us. A French team has developed a computerized 3D model that allows surgeons to use robotics to operate on a beating heart, according to a report in The International Journal of Robotics Research, published by SAGE.

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.

Rogrio Richa, Philippe Poignet and Chao Liu from France's Montpellier Laboratory of Informatics, Robotics, and Microelectronics developed a three-dimensional computerized model that tracks the motion of the heart's surface as it beats. 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.

Over the last 10 years, robotic arms have become essential in many kinds of surgical procedures, i
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Contact: Mithu Lucraft
mithu.lucraft@sagepub.co.uk
44-207-324-2223
SAGE Publications UK
Source:Eurekalert

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