Robobug' for heart ops
A robot caterpillar which can crawl over a beating heart to perform vital operations has been invented by scientists.
The inch-long 'HeartLander' is inserted with keyhole surgery, then attaches itself to the organ with two sucker 'feet', reports The Sun.
It is controlled by a joystick and can be used to inject drugs or install pacemakers - after being developed at a university in Pittsburgh, Pennsylvania.
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