Robotic tools are too big for ‘keyhole’ brain surgery – but a new miniature technology using magnets could change all that.

A surgeon used a Swiss army knife to cut open the chest of a patient in cardiac arrest because he claimed he could not find a sterile scalpel. The patient, who was treated at Royal Sussex County ...

scalpel and forceps, and a coil table with built-in electromagnetic coils that control their movement. “We can now replicate the wrist and hand movements of a surgeon on a centimeter scale ...