Abstract
Vitreoretinal surgery is one of the most difficult microsurgery because surgeons have to manipulate extremely delicate tissues on the retina peering through a microscope. Therefore, there are only few surgeons skilled enough to perform it successfully. In order to make more effective treatment with high precision, we have developed a parallel manipulator with six degree of freedom. The primary concerns are size, precision and sterilization considering the characteristics of the surgery. The result of evaluation experiment shows that the manipulator moves around therapeutic range keeping remote center of motion. The experiment also shows that this system ensures microscopic field.
