Tiny heart pump installed

German doctors have implanted the world's smallest artificial heart pump, billed as more effective and unobtrusive than earlier devices.

The first recipient, a 50-year-old woman, received the 92-gram pump of plastic and titanium in late July and is now leading a nearly normal life with it at home, the University Hospital of Heidelberg says.

The device can also bridge the time until a heart donor can be found.