Robotic Surgery On a Beating Heart
An anonymous reader writes "Serious heart surgery usually involves stopping the organ and keeping the patient alive with a cardiopulmonary bypass machine. But this risks brain damage and requires a long recuperation. Scientists at Harvard University and Children's Hospital Boston have now developed a device that lets surgeons operate on a beating heart with a steady hand. The 'robotic' device uses 3-D ultrasound images to predict and compensate for the motion of the heart so that the surgeon can work on a faulty valve as it moves. The approach should improve recovery times and give a surgeon instant feedback on the success of the procedure, the researchers say. Here's a (slightly gory) video of the device in action."
The software can predict where heart tissue will be approximately 70 to 100 milliseconds in the future, so the position of the tip of the handheld surgical tool can be adjusted accordingly.
In surgery there is always a potential for something to go wrong. Can the software compensate for cardiac arrhythmias which are inherently unpredictable?
Surgeons typically respond better than machines to unpredicted circumstances.
What are the repercussions if your human surgeon has a transient ischemic attack during surgery?