SURGICAL ROBOTIC ARM, FLEXIBLE ARM AND FLEXIBLE JOINT

The present disclosure relates to a surgical robotic arm, a flexible arm, and a flexible joint. The flexible joint (1) comprises two support sections (11) and an articulated section (12) connected between the two support sections (11), the articulated section (12) including a plurality of first turns (121) with contact aided parts (122); wherein, the contact aided parts (122) are oppositely arranged on two sides of each first turn (121), and when the flexible joint (1) is in a bent state, the contact aided parts (122) of adjacent first turns (121) are in contact with each other; and wherein at each first turn (121) of the articulated section (12) are provided a plurality of tendon through-holes (5) for a driving tendon (6) to pass through. Compared with the prior art, the flexible joint of the present disclosure has the merit of less misalignment proneness and better reliability.