A major problem in keyhole surgery, which involves surgeons performing operations through small incisions, is the complex manoeuvring of small instruments. Researchers at TU Delft have built an entirely new tool tip control system, based on the tentacles of squid that will enable surgeons to manoeuvre a camera or instrument in any direction during keyhole surgery. The concept uses nothing but standard parts like cables, springs, washers and tubes, so the cost is less than one percent of the cost of the currently available tool tip systems. The mechanism is easy to miniaturise. A worldwide patent has already been applied for, and the design is now ready for commercial application. Surgeons cant wait to start using the new invention, in particular because it will enable them to use minute instruments during keyhole surgery.