This work presents the design of a highly flexible, single-port platform to perform laparoscopic single-port surgery. The platform comprises two manipulators and a telescope that are combined into one unit to enable interventions through a single access. All the joints of the platform are actuated by flexible transmission mechanisms at the periphery. The presented kinematics of the flexible bending section and manipulator were analyzed in a simulation with a simplified 3D model of the platform. A velocity-based task-space control of the instruments was also implemented. In addition, the realized low-level control of the manipulators is described. The workspace of the manipulator and the applicable forces were evaluated. Furthermore, the results of the accomplished in-vitro as well as in-vivo laparoscopic cholecystectomy are presented.
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This work presents the design of a highly flexible, single-port platform to perform laparoscopic single-port surgery. The platform comprises two manipulators and a telescope that are combined into one unit to enable interventions through a single access. All the joints of the platform are actuated by flexible transmission mechanisms at the periphery. The presented kinematics of the flexible bending section and manipulator were analyzed in a simulation with a simplified 3D model of the platform....
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