>> reporter: it took six years for the neuroarm to come to life. this is the second generation robot that dr. sutherland hopes will soon be in hospitals around north america and the world. >> so this is a descendant of the original robot and it has two arms. and the two arms are like surgeons. they multi-articulate and they are quite precise at the tool tip. and this robot can perform microsurgery. >> reporter: the neuroarm is built to increase safety and accuracy. no matter how good a surgeon is, the human hand has a natural tremor. the robot filters out the tremor for a perfectly steady tool. the precision needed for space was a good match for surgery. in the brain, every tiny millimeter counts. by reducing the risk, dr. sutherland and neuroarm can operate on patients he might