What mechanical feature of the EndoWrist instruments allows them to perform complex suturing inside narrow cavities?

The mechanical feature of EndoWrist instruments that allows them to perform complex suturing inside narrow cavities is their articulated joint system, which provides seven degrees of freedom. This includes pitch, yaw, and roll movements that mimic the motions of the human wrist. The articulated joints are located near the tip of the instrument and are controlled remotely by the surgeon through the robotic console. Each joint is powered by internal cables and pulleys that allow precise, fine movement in multiple directions. This flexibility lets the instrument bend and rotate in tight spaces where rigid tools would be unable to maneuver. For example, when performing suturing near a deep organ or behind a structure, the EndoWrist can curve around obstacles and place a needle with accurate angle and force. The full wrist-like movement allows the surgeon to tie knots, rotate the needle, and adjust the position without needing to move the entire robotic arm. This makes suturing in confined areas faster, safer, and more reliable.