Design of robotic surgical instrument for minimally invasive surgical robot system

Laparoscopic surgery and the market for its robotic devices keep growing since postoperative complications are fewer and patients recover quicker than conventional laparotomy wounds, even though robotic surgery is 5–6 times more expensive than traditional laparotomy. We are developing surgical robot system with minimally invasive robotic surgical tools. And to use those tools in surgery, the mechanism of system needs to be simple and durable to reduce the cost of robotic surgery. In this paper, we present some mechanisms for minimally invasive surgical robot tools that have simple structure, easy to manufacture and control.