Patent ID: 8249716
Filing Date: 2012-08-21
Classification: A61N

Abstract:
1. A sight regeneration assisting device for regenerating sight of a patient, the sight regeneration assisting device comprising: a plurality of needlelike electrodes, each electrode having a pointed distal end and configured to be inserted into an optic papilla of a patient's eye in use; a signal generator configured to generate an electric stimulus pulse signal be outputted from the plurality of needlelike electrodes; a plurality of conductive wires configured to connect the plurality of needlelike electrodes to the signal generator, each conductive wire having a rigid portion and a flat portion extending along its axial direction, the rigid portion having a cross-sectional thickness so as to be sufficiently rigid to permit insertion of the electrode into the optic papilla, and the flat portion configured to be placed in a vitreous body of the patient's eye when the electrode is inserted into the optic papilla and having a cross-sectional thickness less than the cross-sectional thickness of the rigid portion; and a turn-back retaining portion formed in the electrode at a predetermined distance in a proximal direction from the pointed distal end of the electrode and in a predetermined position on the electrode.