A flexible head fixation for ophthalmic microsurgery

Ophthalmic surgery is a typical microsurgery, where the surgical progress imposes huge challenges on delicate operations to surgeons. The fixation plays an important role in restriction the head movement and also providing a friendly interaction with both patients and surgeons. A fixation specific for ophthalmic robotic set-ups is developed in this paper for a hybrid parallel-serial robot. Evaluations for the benefits of the fixation device are performed with an optical tracking system. The experimental result shows that the designed fixation can restrict an average of absolute movements below 10 mm.