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this paper presents the experimental coordinated evaluation of a control system for a robot and robot - driven shape memory alloy (SMA) actuated smart flexible needle capable of following a curved path for percutaneous intervention. the robot driving the needle is't considered the outer loop and the non - linear SMA actuated flexible needle system comprises the inner loop. the two feedback control loops are coordinated in such a. that the robot drives the needle of monitoring the needle 's actual deflection against a preplanned ideal trajectory, so that the needle tip reaches the target location within an acceptable accuracy. in air and in water experimental results are presented to validate the ability of the proposed coordinated controller to track the overall desired trajectory which includes the combined trajectory of the robot driver and the needle.