Medical robot system

1. A medical robot system comprising:

a plurality of first robot arms supporting respective manipulators thereon;

a second robot arm supporting an endoscope thereon;

a controller for controlling said first robot arms and said second robot arm;

a monitor for displaying an image captured with said endoscope;

first input means which is operated by the left hand of an operator; and

second input means which is operated by the right hand of said operator,

said manipulators and said endoscope being inserted into a body cavity through a common trocar supporting member,

wherein each of said manipulators includes a rod-shape member for insertion through said trocar supporting member into said body cavity, a distal-end working unit mounted on a distal end of said rod-shaped member and having at least one joint, and at least one intermediate joint disposed in said rod-shaped member for bending said rod-shaped member,

wherein the intermediate joint allows the rod-shaped member of each of the manipulators to bend to form an outer convex shape so that the intermediate joints of the manipulators are positioned away from each other, in a state where the first robot arms support the manipulators outside the body cavity so that the rod-shaped members of the manipulators cross each other inside the trocar supporting member;

wherein said controller is adapted to detect a condition in which said rod-shaped members of said manipulators cross each other inside the trocar supporting member such that the image displayed on said monitor shows said manipulator having a proximal end located on the right side outside the body cavity in the image and an end effector located on the left side in the image, and said manipulator that has a proximal end located on the left side outside the body cavity in the image and an end effector located on the right side in the image;

wherein said controller is adapted to, upon detection of the condition, set a reverse operation mode in which said manipulator having a proximal end located on the right side outside the body cavity in the image is operated based on input operation by said first input means and said manipulator having a proximal end located on the left said outside the body cavity in the image is operated based on input operation by said second input means.

2. A medical robot system according to claim 1 , wherein at least one of said manipulators serves as a retractor, and said rod-shaped member of said at least one manipulator serving as the retractor includes a plurality of said intermediate joints.